Introduction

This machine is a multi-purpose machine intended to be used by professional, hired operators in commercial applications. It is designed primarily for mowing grass on well-maintained lawns in parks, golf courses, sports fields, and on commercial grounds. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.

Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely.

Visit www.Toro.com for product safety and operation training materials, accessory information, help finding a dealer, or to register your product.

Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided.

Important: With your mobile device, you can scan the QR code on the serial number decal (if equipped) to access warranty, parts, and other product information.

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This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.

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This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.

This product complies with all relevant European directives; for details please see the separate product specific Declaration of Conformity (DOC) sheet.

It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire.

The enclosed engine owner's manual is supplied for information regarding the US Environmental Protection Agency (EPA) and the California Emission Control Regulation of emission systems, maintenance, and warranty. Replacements may be ordered through the engine manufacturer.

Warning

CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.

Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Safety

This machine has been designed in accordance with ANSI B71.4-2017 and with EN ISO 5395 when you complete the setup procedures and install the CE kit, per the Declaration of Conformity.

General Safety

This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury.

  • Read and understand the contents of this Operator’s Manual before starting the engine.

  • Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

  • Do not operate the machine without all guards and other safety protective devices in place and functioning properly on the machine.

  • Keep your hands and feet away from rotating parts. Keep clear of the discharge opening.

  • Keep bystanders and children out of the operating area. Never allow children to operate the machine.

  • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position, Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

Improperly using or maintaining this machine can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol Graphic, which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with these instructions may result in personal injury or death.

Engine-Emission Certification

The engine in this machine is EPA Tier 4 Final and EU Stage V emissions compliant.

Safety and Instructional Decals

Graphic

Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing.

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Affix over Part No. 117-2754 for CE machines.

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Setup

Note: Determine the left and right sides of the machine from the normal operating position.

Greasing the Machine

Grease the machine before use; refer to Lubrication.

Important: Failure to properly grease the machine will result in premature failure of critical parts.

Checking the Tire Pressure

Check the tire pressure; refer to Checking the Tire Pressure.

Important: Maintain pressure in all tires to ensure a good quality-of-cut and proper machine performance. Do not underinflate the tires.

Checking the Fluid Levels

  1. Check the engine-oil level; refer to Checking the Engine-Oil Level.

  2. Check the hydraulic-fluid level; refer to Servicing the Hydraulic System.

  3. Check the cooling system; refer to Checking the Cooling System.

  4. Check the planetary-gear-drive oil; refer to Checking the Planetary-Gear-Drive Oil.

  5. Check the rear-axle lubricant; refer to Checking the Rear-Axle Lubricant.

  6. Check the rear-axle-gearbox lubricant; refer to Checking the Rear-Axle-Gearbox Lubricant.

Installing the Decal (CE Machines Only)

Parts needed for this procedure:

Production-year decal1

On machines requiring CE compliance, install the CE kit and the production-year decal included in the loose parts (Figure 3).

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Product Overview

Note: Determine the left and right sides of the machine from the normal operating position.

Become familiar with all the controls before you start the engine and operate the machine.

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Traction Pedal

To stop the machine, reduce the amount of foot pressure that you apply to the traction pedal until the pedal returns to the NEUTRAL position (Figure 4).

Brake Pedals

There are 2 foot pedals that operate individual wheel brakes for turning assistance, parking, and to aid in better side-hill traction. A latch connects the pedals for parking-brake operation and transport (Figure 4).

Pedal-Locking Latch

The pedal-locking latch connects the pedals together to engage the parking brake (Figure 4).

Tilt-Steering Lever

Press the tilt-steering lever down to tilt the steering wheel to the desired position, then release the lever to lock the adjustment (Figure 4).

Parking-Brake Latch

A knob on the left side of the console actuates the parking-brake lock (Figure 4).

To engage the parking brake, connect the pedals with the locking latch, push down on both pedals, and pull the parking-brake latch out. To release the parking brake, press both pedals until the parking-brake latch retracts.

Key Switch

The key switch (Figure 5) has 3 positions: OFF, ON/PREHEAT, and START.

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Engine-Speed Switch

The engine-speed switch (Figure 5) has 2 modes to change the engine speed. Tap the switch to increase or decrease the engine speed in 100 rpm increments. Hold down the switch to automatically move to High or Low idle, depending on which end of the switch you press.

PTO Switch

The PTO switch has 2 positions: OUT (START) and IN (STOP). Pull the PTO button out to engage the mower-deck blades. Push the button in to disengage the mower-deck blades (Figure 5).

High-Low Speed-Control Switch

The High-Low speed-control switch allows the speed range to increase for transport of the machine (Figure 5).

Mower decks do not operate in high range. To switch between the HIGH and LOW range, raise the decks, disengage the PTO and the cruise control, move the traction pedal in the NEUTRAL position, and have the machine move at a slow speed.

Lift Switches

The lift switches raise and lower the cutting units (Figure 5). Press the switches forward to lower the cutting units and rearward to raise the cutting units. When starting the machine, with the cutting units in the down position, press the lift switch down to allow the cutting units to float and mow.

Note: The cutting units do not lower while in the high-speed range and they do not raise or lower if you are out of the seat while the engine is running. Also, the cutting units lower with the key in the ON position and you are in the seat.

Cruise-Control Switch

The cruise-control switch locks in the pedal position to maintain the desired ground speed (Figure 6). Pressing the rear of the switch turns off the cruise control, the middle position of the switch enables the cruise-control function, and the front of the switch sets the desired ground speed.

Note: Pressing either brake pedal or moving the traction pedal into the REVERSE position, for 1 second, also disengages the pedal position.

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Power-Point Port

Use the power-point port to power optional electrical accessories (Figure 6).

Seat Controls

Seat-Adjustment Lever

Move the seat-adjustment lever on the side of the seat outward, slide the seat to the desired position, and release the lever to lock the seat into position (Figure 7).

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Armrest-Adjustment Knob

Rotate the knob to adjust the armrest angle (Figure 7).

Seat-Back-Adjustment Lever

Move the lever to adjust the seat-back angle (Figure 7).

Weight Gauge

The weight gauge indicates when the seat is adjusted to the weight of the operator (Figure 7). Adjust the height by positioning the suspension within the range of the green region.

Weight-Adjustment Lever

Use this lever to adjust to the proper weight of the operator (Figure 7). Pull up the lever to increase the air pressure and push down to decrease the air pressure. The proper adjustment is correct when the weight gauge is in the green region.

Cab Controls

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Air Recirculation Control

Sets the cab to either recirculate the air in the cabin or to draw air into the cabin from outside (Figure 8).

  • Set it to recirculate the air when using the air conditioning.

  • Set it to draw air in when using the heater or fan.

Fan-Control Knob

Rotate the fan-control knob to regulate the speed of the fan (Figure 8).

Temperature-Control-Knob

Rotate the temperature-control knob to regulate the air temperature in the cab (Figure 8).

Windshield-Wiper Switch

Use this switch to turn the wind shield wipers on or off (Figure 8).

Air-Conditioning Switch

Use this switch to turn the air conditioning on or off (Figure 8).

Power Outlet

Use this 15 A, 12 V DC power outlet to power compatible devices (Figure 8).

Lights Switch

Use this switch to turn the headlights and tail light on or off (Figure 8).

Flashers Switch

Use this switch to turn the flashers (hazard lights) on or off (Figure 8).

Windshield Latch

Lift up the latches to open the windshield (Figure 9). Press in the latch to lock the windshield to the OPEN position. Pull out and down on the latch to close and secure the windshield.

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Rear Window Latch

Lift up the latches to open the rear window. Press in on the latch to lock the window in OPEN position. Pull out and down on the latch to close and secure the window (Figure 9).

Important: Close the rear window before opening the hood or damage may occur to the hood or rear window.

Using the InfoCenter Control

The InfoCenter LCD display shows information about your machine, such as the operating status and various diagnostics (Figure 10). There is a splash screen and a main information screen of the InfoCenter. You can switch between the splash and main information screens at any time by pressing any InfoCenter button and then selecting the appropriate directional arrow.

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  • Left Button, Menu Access/Back Button—press this button to access the InfoCenter menus. You can use it to exit any menu that you are currently using.

  • Middle Button—use this button to scroll down menus.

  • Right Button—use this button to open a menu where a right arrow indicates additional content.

  • Beeper—activated when lowering the decks or for advisories and faults.

Note: The purpose of each button may change depending on what is required at the time. Each button is labeled with an icon displaying its current function.

InfoCenter Icon Description

SERVICE DUEIndicates when scheduled service should be performed
GraphicEngine rpm/status—indicates the engine rpm
GraphicHour meter
GraphicInfo icon
GraphicSets the maximum traction speed
GraphicFast
GraphicSlow
GraphicFan Reversal—indicates when the fan is reversed
GraphicFuel level
GraphicStationary regeneration required
GraphicAir intake heater is active
GraphicRaise the left deck
GraphicRaise the center deck
GraphicRaise the right deck
GraphicOperator must sit in seat
GraphicParking Brake Indicator—indicates when the parking brake is on
GraphicIdentifies the range as High
GraphicNeutral
GraphicIdentifies the range as Low
GraphicCoolant Temperature-indicates the engine coolant temperature in either °C or °F
GraphicTemperature (hot)
GraphicTraction or Traction Pedal
GraphicDenied or not allowed
GraphicEngine Start
GraphicPTO—indicates that the PTO is on
GraphicStop or shutdown
GraphicEngine
GraphicKey switch
GraphicIndicates when the cutting units are being lowered
GraphicIndicates when the cutting units are being raised
GraphicPIN code
GraphicHydraulic-Fluid Temperature—indicates the hydraulic-fluid temperature
GraphicCAN bus
GraphicInfoCenter
GraphicBad or failed
GraphicCenter
GraphicRight
GraphicLeft
GraphicBulb
GraphicOutput of TEC controller or control wire in harness
GraphicHigh: over-allowed range
GraphicLow: under-allowed range
Graphic/GraphicOut of range
GraphicSwitch
GraphicOperator must release the switch
GraphicOperator should change to the indicated state
GraphicDPF ash accumulation notification. Refer to Servicing the Diesel Particulate Filter (DPF) in the maintenance section for details
GraphicReset-standby regeneration request
Parked or recovery regeneration request
GraphicA parked or recovery regeneration is processing.
GraphicHigh exhaust temperature
GraphicNOx control diagnosis malfunction; drive the machine back to the shop and contact your authorized Toro distributor (software version R and later).
Symbols are often combined to form sentences. Some examples are shown below 
GraphicOperator should put the machine in neutral
GraphicEngine start denied
GraphicEngine shutdown
GraphicEngine coolant is too hot
GraphicHydraulic fluid is too hot
GraphicSit down or engage the parking brake

Using the Menus

To access the InfoCenter menu system, press the menu access button while at the main screen. This brings you to the main menu. Refer to the following tables for a synopsis of the options available from the menus:

Main Menu
Menu ItemDescription
FaultsThe Faults menu contains a list of the recent machine faults. Refer to the Service Manual or your authorized Toro distributor for more information on the Faults menu and the information contained there.
ServiceThe Service menu contains information on the machine such as hours of use and other similar numbers.
DiagnosticsThe Diagnostics menu displays the state of each machine switch, sensor and control output. You can use this to troubleshoot certain issues as it will quickly tell you which machine controls are on and which are off.
SettingsThe Settings menu allows you to customize and modify configuration variables on the InfoCenter display.
AboutThe About menu lists the model number, serial number, and software version of your machine.
Service
Menu ItemDescription
HoursLists the total number of hours that the machine, engine and fan have been on, as well as the number of hours that the machine has been transported and overheated
CountsLists the number of preheats and starts that the machine has experienced
Diagnostics
Menu ItemDescription
Engine RunRefer to the Service Manual or your authorized Toro distributor for more information on the Engine Run menu and the information contained there.
GlowplugsIndicates if the following items are active: Key start, timeout limited, and glowplugs
FanIndicates if the fan is active in the following instances: Engine high temp, oil high temp, engine or hydraulic high temp, and fan on
Settings
Menu ItemDescription
UnitsControls the units used on the InfoCenter; the menu choices are English or Metric
LanguageControls the language used on the InfoCenter*
LCD BacklightControls the brightness of the LCD display
LCD ContrastControls the contrast of the LCD display
Protected MenusAllows a person authorized by your company with the PIN code to access protected menus.
Auto IdleControls the amount of time allowed before idling the engine when the machine is not in use
Mow SpeedControls the maximum speed while in mow (low range)
Trans SpeedControls the maximum speed while in transport (high range)
Smart PowerSmart Power prevents bogging down in heavy turf by automatically controlling the machine speed and optimizing cutting performance.

*Only "operator-faced" text is translated. Faults, Service, and Diagnostics screens are "service-faced." Titles are in the selected language, but menu items are in English.

About
Menu ItemDescription
ModelLists the model number of the machine
SNLists the serial number of the machine
Machine Controller RevisionLists the software revision of the master controller
InfoCenter RevisionLists the software revision of the InfoCenter
CAN BusLists the machine communication bus status

Protected Menus

There are 4 operating configuration settings that are adjustable within the Settings Menu of the InfoCenter: auto idle time delay, maximum mowing ground speed, maximum transport ground speed, and Smart Power. These settings are in the Protected Menu.

Accessing Protected Menus

Note: The factory default PIN code for you machine is either 0000 or 1234.If you changed the PIN code and forgot the code, contact your authorized Toro distributor for assistance.

  1. From the MAIN MENU, use the center button to scroll down to the SETTINGS MENU and press the right button (Figure 11).

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  2. In the SETTINGS MENU, use the center button to scroll down to the PROTECTED MENU and press the right button (Figure 12A).

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  3. To enter the PIN code, press the center button until the correct first digit appears, then press the right button to move on to the next digit (Figure 12B and Figure 12C). Repeat this step until the last digit is entered and press the right button once more.

  4. Press the middle button to enter the PIN code (Figure 12D).

    Wait until the red indicator light of the InfoCenter illuminates.

    Note: If the InfoCenter accepts the PIN code and the protected menu is unlocked, the word “PIN” displays in the upper right corner of the screen.

Note: Rotate the key switch to the OFF position and then to the ON position locks the protected menu.

You can view and change the settings in the Protected Menu. Once you access the Protected Menu, scroll down to Protect Settings option. Use the right button to change the setting. Setting the Protect Settings to OFF allows you to view and change the settings in the Protected Menu without entering the PIN code. Setting the Protect Settings to ON hides the protected options and requires you to enter the PIN code to change the setting in the Protected Menu. After you set the PIN code, rotate the key switch OFF and back to the ON position to enable and save this feature.

Setting the Auto Idle

  1. In the Settings Menu, scroll down to Auto Idle.

  2. Press the right button to change the auto idle time between Off, 8S, 10S, 15S, 20S, and 30S.

Setting the Maximum Allowed Mow Speed

  1. In the Settings Menu, scroll down to Mow Speed and press the right button.

  2. Use the right button to increase the max full mow speed (50%, 75%, or 100%).

  3. Use the center button to decrease the max full mow speed (50%, 75%, or 100%).

  4. Press the left button to exit.

Setting the Maximum Allowed Transport Speed

  1. In the Settings Menu, scroll down to Transport Speed and press the right button.

  2. Use the right button to increase the max transport speed (50%, 75%, or 100%).

  3. Use the center button to decrease the max transport speed (50%, 75%, or 100%).

  4. Press the left button to exit.

When finished with the Protected Menu, press the left button to exit to the Main Menu, then press the left button to exit to the Run Menu.

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DescriptionFigure 13 referenceDimension or Weight
Height with cab A237 cm (93 inches)
Height with roll bar raisedI217 cm (85 inches)
Height with roll bar loweredK173 cm (68 inches)
Overall lengthH186 cm(152 inches)
Length for storageG184 cm (151 inches)
Width of cut   
 overallD315 cm (124 inches)
 front cutting unit 137 cm (54 inches)
 side cutting unit 94 cm (37 inches)
 front and one side cutting unit 226 cm (89 inches)
Overall width   
 cutting units downE323 cm (127 inches)
 cutting units up (transport position)C180 cm (71 inches)
Wheel base F141 cm (56 inches)
Wheel tread (tire center to center)   
 frontB114 cm (45 inches)
 rearJ107 cm (42 inches)
Ground clearance 15 cm (6 inches)
Net weight with cab 2165 kg (4,774 lb)
Net weight with roll bar 1922 kg (4,237 lb)

Note: Specifications and design are subject to change without notice.

Attachments/Accessories

A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories.

Use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

Operation

Note: Determine the left and right sides of the machine from the normal operating position.

Before Operation

Before Operation Safety

General Safety

  • Never allow children or untrained people to operate or service the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics.

  • Become familiar with the safe operation of the equipment, operator controls, and safety signs.

  • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position, Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

  • Know how to stop the machine and shut off the engine quickly.

  • Check that operator-presence controls, safety switches, and guards are attached and functioning properly. Do not operate the machine unless they are functioning properly.

  • Before mowing, always inspect the machine to ensure that the blades, blade bolts, and cutting assemblies are in good working condition. Replace worn or damaged blades and bolts in sets to preserve balance.

  • Inspect the area where you will use the machine and remove all objects that the machine could throw.

Fuel Safety

  • Use extreme care in handling fuel. It is flammable and its vapors are explosive.

  • Extinguish all cigarettes, cigars, pipes, and other sources of ignition.

  • Use only an approved fuel container.

  • Do not remove the fuel cap or fill the fuel tank while the engine is running or hot.

  • Do not add or drain fuel in an enclosed space.

  • Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or other appliance.

  • If you spill fuel, do not attempt to start the engine; avoid creating any source of ignition until the fuel vapors have dissipated.

Checking the Engine-Oil Level

Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Engine-Oil Level.

Checking the Cooling System

Before you start the engine and use the machine, check the cooling system; refer to Checking the Cooling System.

Checking the Hydraulic System

Before you start the engine and use the machine, check the hydraulic system; refer to Servicing the Hydraulic System.

Draining the Water Separator

Drain water or other contaminants from the water separator; refer to Servicing the Water Separator.

Filling the Fuel Tank

Fuel Tank Capacity

Fuel tank capacity: 79 L (21 US gallons)

Fuel Specification

Important: Use only ultra-low sulphur diesel fuel. Fuel with higher rates of sulfur degrades the diesel oxidation catalyst (DOC), which causes operational problems and shortens the service life of engine components.Failure to observe the following cautions may damage the engine.

  • Never use kerosene or gasoline instead of diesel fuel.

  • Never mix kerosene or used engine oil with the diesel fuel.

  • Never keep fuel in containers with zinc plating on the inside.

  • Do not use fuel additives.

Petroleum Diesel

Cetane rating: 45 or higher

Sulfur content: Ultra-low sulfur (<15 ppm)

Fuel Table

Diesel fuel specificationLocation
ASTM D975USA
No. 1-D S15
No. 2-D S15
EN 590European Union
ISO 8217 DMXInternational
JIS K2204 Grade No. 2Japan
KSM-2610Korea
  • Use only clean, fresh diesel fuel or biodiesel fuels.

  • Purchase fuel in quantities that can be used within 180 days to ensure fuel freshness.

Use summer-grade diesel fuel (No. 2-D) at temperatures above -7°C (20°F) and winter-grade fuel (No. 1-D or No. 1-D/2-D blend) below that temperature.

Note: Use of winter-grade fuel at lower temperatures provides lower flash point and cold flow characteristics which eases starting and reduces fuel filter plugging.Using summer-grade fuel above -7°C (20°F) contributes toward longer fuel pump life and increased power compared to winter-grade fuel.

Using Biodiesel

This machine can also use a biodiesel-blended fuel of up to B20 (20% biodiesel, 80% petrodiesel).

Sulfur content: Ultra-low sulfur (<15 ppm)

Biodiesel fuel specification: ASTM D6751 or EN14214

Blended fuel specification: ASTM D975, EN590, or JIS K2204

Important: The petroleum diesel portion must be ultra-low sulfur.

Observe the following precautions:

  • Biodiesel blends may damage painted surfaces.

  • Use B5 (biodiesel content of 5%) or lesser blends in cold weather.

  • Monitor seals, hoses, gaskets in contact with fuel as they may degrade over time.

  • Fuel filter plugging may occur for a time after you convert to biodiesel blends.

  • For more information on biodiesel, contact your authorized Toro distributor.

Adding Fuel

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Fill the tank to about 6 to 13 mm (1/4 to 1/2 inch) below the top of the tank, not the filler neck, with No. 2-D diesel fuel.

Note: If possible, fill the fuel tank after each use; this will minimize possible buildup of condensation inside the fuel tank.

Checking the Tire Pressure

Maintenance Service IntervalMaintenance Procedure
Before each use or daily
  • Check the tire pressure.
  • Danger

    Low tire pressure decreases machine side-hill stability. This could cause a rollover, which may result in personal injury or death.

    Do not underinflate the tires.

    The correct air pressure in the tires is 172 to 207 kPa (25 to 30 psi).

    Important: Maintain the recommended pressure in all tires to ensure a good quality of cut and proper machine performance. Do not under-inflate the tires.Check the air pressure in all the tires before operating the machine.

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    Checking the Torque of the Wheel Lug Nuts

    Maintenance Service IntervalMaintenance Procedure
    After the first hour
  • Torque the wheel lug nuts.
  • After the first 10 hours
  • Torque the wheel lug nuts.
  • Every 200 hours
  • Torque the wheel lug nuts.
  • Warning

    Failing to maintain proper torque of the wheel-lug nuts could result in personal injury.

    Torque the wheel-lug nuts to the proper torque value.

    Torque the wheel-lug nuts to 115 to 136 N∙m (85 to 100 ft-lb) in the order shown in Figure 16 and Figure 17.

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    Adjusting the Mirrors

    Cab Model Only

    Rearview Mirror

    While sitting in the seat, adjust the rearview mirror to attain the best view out the rear window (Figure 18). Pull the lever rearward to tilt the mirror to reduce the brightness and glare of light.

    Side-View Mirrors

    While sitting in the seat, have someone assist to adjust the side-view mirrors to attain the best view around the side of the machine (Figure 18).

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    Aiming the Headlights

    Optional Accessory
    1. Loosen the mounting nuts and position each headlight so that it points straight ahead.

      Note: Tighten the mounting nut just enough to hold the headlight in position.

    2. Place a flat piece of sheet metal over the face of the headlight.

    3. Mount a magnetic protractor onto the plate.

    4. While holding the assembly in place, carefully tilt the headlight downward 3°, then tighten the nut.

    5. Repeat the procedure on the other headlight.

    Adjusting the Rollover Protection System (ROPS)

    Warning

    To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt.

    Ensure that the seat is secured with the seat latch.

    Warning

    There is no rollover protection when the roll bar is in the down position.

    • Do not operate the machine on uneven ground or on a hillside with the roll bar in the down position.

    • Lower the roll bar only when absolutely necessary.

    • Do not wear the seat belt when the roll bar is in the down position.

    • Drive slowly and carefully.

    • Raise the roll bar as soon as clearance permits.

    • Check carefully for overhead clearances (i.e., branches, doorways, electrical wires) before driving under any objects and do not contact them.

    Lowering the Roll Bar

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    Raising the Roll Bar

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    Adjusting the Height of Cut

    Center Cutting Unit

    The height of cut is adjustable from 25 to 127 mm (1 to 5 inches) in 13 mm (1/2 inch) increments. To adjust the height of cut on the center cutting unit, position the castor-wheel axles in the upper or lower holes of the castor forks, add or remove an equal number of spacers from the castor forks, and secure the rear chain to the desired hole.

    1. Park the machine on a level surface.

    2. Start the engine and raise the cutting units to change height of cut.

    3. Shut off the engine, engage the parking brake, and remove the key from the ignition after the cutting unit is raised.

    4. Position the caster-wheel axles in the same holes in all caster forks.

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      Note: When operating in 64 mm (2-1/2 inch) height of cut or higher, install the axle bolt in the lower caster-fork hole to prevent grass buildup between the wheel and the fork. When you operate the machine at a height of cut lower than 64 mm (2-1/2 inches) and detect grass buildup, reverse the machines direction to pull any clippings away from the wheel/fork area.

    5. Remove the tensioning cap from the spindle shaft and slide the spindle out of the caster arm (Figure 21).

    6. Install 2 shims onto the spindle shaft as they were originally installed.

      Note: These shims require a level across the entire width of the cutting units. Slide the appropriate number of 13 mm (1/2 inch) spacers (refer to the chart below) onto the spindle shaft to attain the desired height of cut; then slide the washer onto the shaft.

      Refer to the following chart to determine the combinations of spacers for the setting (Figure 22):

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    7. Push the caster spindle through the front caster arm.

    8. Install the shims (as they were originally installed) and the remaining spacers onto the spindle shaft.

    9. Install the tensioning cap to secure the assembly.

    10. Remove the hairpin cotter and clevis pin securing the height-of-cut chains to the rear of the cutting unit (Figure 23).

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    11. Mount the height-of-cut chains to the desired height-of-cut hole with the clevis pin and hairpin cotter (Figure 24).

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      Note: When using 25 mm (1 inch), 38 mm (1-1/2 inch), or occasionally 51 mm (2 inch) height-of-cut, move the skids and gage wheels to the highest position.

    Wing Cutting Units

    To adjust the height of cut on the wing cutting units, add or remove an equal number of spacers from the caster forks, position the caster-wheel axles in the high or low height-of-cut holes in the caster forks, and secure the pivot arms to the selected height-of-cut bracket holes.

    1. Position the caster-wheel axles in the same holes in all of the caster forks (Figure 25 and Figure 27).

    2. Remove the tensioning cap from the spindle shaft and slide the spindle out of the caster arm (Figure 25).

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    3. Install 2 shims onto the spindle shaft as they were originally installed.

      Note: These shims are required to achieve a level across the entire width of the cutting units. Slide the appropriate number of 13 mm (1/2 inch) spacers (refer to the chart below) onto the spindle shaft to attain the desired height-of-cut, then slide the washer onto the shaft.

      Refer to the following chart to determine the combinations of spacers for the setting (Figure 26).

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    4. Push the caster spindle through the front caster arm.

    5. Install the shims (as they were originally installed) and the remaining spacers onto the spindle shaft.

    6. Remove the hairpin cotter and clevis pins from the caster-pivot arms (Figure 27).

    7. Rotate the tension rod to raise or lower the pivot arm until the holes are aligned with the selected height-of-cut bracket holes in the mower-deck frame (Figure 27 and Figure 28).

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      decal100-5623nc
    8. Insert the clevis pins and install the hairpin cotters.

    9. Rotate the tension rod counterclockwise (finger tight) to put tension on adjustment.

    Adjusting the Skids

    Mount the skids in the lower position when operating at heights of cut greater than 64 mm (2-1/2 inches) and in the higher position when operating at heights of cut lower than 64 mm (2-1/2 inches).

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    Adjusting the Mower-Deck Rollers

    Mount the mower-deck rollers in the lower position when operating at a height-of-cut greater than 64 mm (2-1/2 inches) and in the higher position when operating at a height-of-cut lower than 64 mm (2-1/2 inches).

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    Adjusting the Blade

    Important: On multi-bladed machines, take care as rotating 1 blade can cause other blades to rotate.

    To ensure proper operation of the cutting unit, there must be a 10 to 16 mm (0.38 to 0.62 inch) clearance between the tips of the side and center mower-deck blades (Figure 31).

    1. Raise the cutting unit so the blades are visible and block the center deck section so it cannot fall accidentally.

      Note: The wing decks must be horizontal to the center cutting unit.

    2. Rotate a center and adjoining side blade so the blade tips are aligned. Measure the distance between the blade tips (Figure 31).

      Note: The distance should be approximately 10 to 16 mm (0.38 to 0.62 inch).

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    3. To adjust distance, locate adjuster bolt on rear pivot link of the cutting unit (Figure 32).

    4. Loosen the jam nut on the adjuster bolt.

    5. Loosen or tighten the adjuster bolts until you attain a 10 to 16 mm (0.38 to 0.62 inch) clearance, then tighten the jam nut.

    6. Repeat the procedure on the opposite side of the cutting unit.

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    Correcting a Mismatch Between the Cutting Units

    Due to differences in grass conditions and the counterbalance setting of the traction unit, a sample area of grass should be cut and the appearance checked before formal cutting is started.

    1. Set all cutting units to the desired height of cut; refer to Adjusting the Height of Cut.

    2. Check and adjust the air pressure in the front and rear tire of the machine to 172 to 207 kPa (25 to 30 psi).

    3. Check and adjust the air pressure in all of the caster tires for the cutting unit to 345 kPa (50 psi).

    4. Check the charge and counterbalance pressures with the engine at HIGH IDLE, using hydraulic-test ports.

      Note: Adjust the counterbalance to 2241 kPa (325 psi).

    5. Check for bent blades; refer to Checking for a Bent Blade.

    6. Cut grass in a test area to determine if all cutting units are cutting at the same height.

    7. If mower-deck adjustments are still needed, find a flat surface using a 2 m (6 ft) or a longer straight edge.

    8. To ease measuring the blade plane, raise the height-of-cut to 7.6 to 10.1 cm (3 to 4 inches); refer to Adjusting the Height of Cut.

    9. Lower the cutting units onto a flat surface and remove the covers from the top of the cutting units.

    10. Loosen the flange nut, securing the idler pulley, to release the belt tension on each cutting unit.

    Setting Up the Center Cutting Unit

    Note: It is best to use the Toro tool (Part No. 121-3874) to tighten the tensioning cap.

    1. Rotate the blade on each spindle until the ends face forward and backward.

    2. Measure from the floor to the front tip of the cutting edge.

    3. Adjust the shims (3 mm or 1/8 inch) on the front caster fork(s) to match the height-of-cut decal (Figure 33); refer to Adjusting the Height of Cut.

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    Setting Up the Side Cutting Units

    1. Rotate the blade of each spindle until the ends face forward and backward.

    2. Measure from the floor to the front tip of the cutting edge.

    3. Adjust the shims (3 mm or 1/8 inch) on front caster arm(s) to match the height-of-cut decal (Figure 34).

      Note: For the outside blade spindle only, refer to Adjusting the Height of Cut.

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    Matching the Height of Cut Between Cutting Units

    1. Position the blade side to side on the outside spindle of both side cutting units.

      Note: Measure from the floor to the tip of the cutting edge on both units and compare. These numbers should be within 3 mm (1/8 inch) of each other. Make no adjustment at this time.

    2. Position the blade side to side on the inside spindle of the side cutting unit and corresponding outside spindle of the front cutting unit.

      Note: Measure from the floor to the tip of the cutting edge on the inside edge of side cutting unit to the corresponding outside edge of front cutting unit and compare. The side mower-deck measurement should be within 3 mm (1/8 inch) of the front cutting unit.

      Note: All 3 cutting unit caster wheels should remain on the ground with counterbalance applied.

      Note: If adjustments need to be made to match the cut between the front and side cutting units, make the adjustments to the side cutting units only.

    3. If the inside edge of the side cutting unit is too high relative to the outside edge of the front cutting unit, remove a shim from the bottom of the front, inside caster arm on the side cutting unit (Figure 34).

      Note: Check the measurements between the outside edges of both side cutting units and the inside edge of the side cutting unit to the outside edge of the front cutting unit again.

    4. If the inside edge is still too high, remove an additional shim from the bottom of front, inside caster arm of the side cutting unit and a shim from the front, outside caster arm of the side cutting unit.

    5. If the inside edge of the side cutting unit is too low relative to the outside edge of the front cutting unit, add a shim to the bottom of the front, inside caster arm on the side cutting unit.

      Note: Check the measurement between the outside edges of both side cutting units and the inside edge of the side cutting unit to the outside edge of front cutting unit again.

    6. If the inside edge is still too low, add an additional shim to the bottom of front, inside caster arm of the side cutting unit and add a shim to the front, outside caster arm of the side cutting unit.

    7. When the cutting height matches at the edges of front and side cutting units, verify that the side mower-deck pitch is still 8 to 11 mm (5/16 to 7/16 inch).

      Note: Adjust as necessary.

    Checking the Safety-Interlock Switches

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the safety-interlock switches.
  • The machine has interlock switches in the electrical system. These switches disengage either the traction unit or the PTO whenever you leave the seat. If you disengage the PTO and engage the parking brake before you leave the seat, the engine continues to run.

    1. Drive the machine slowly to a large, open area. Lower the cutting unit, shut off the engine, and apply the parking brake.

    2. Sit on the seat and press the traction pedal. Try to start the engine. The engine should not start. If the engine starts, there is a malfunction in the interlock system that should be corrected before beginning operation.

    3. Sit on the seat, start the engine, and engage the PTO. While sitting in the seat with the PTO engaged, rise from the seat. The PTO should disengage after a slight delay. If the PTO engages, there is a malfunction in the interlock system that should be corrected before beginning operation.

    4. Sit on the seat, engage the parking brake and start the engine. Move the traction pedal out of the NEUTRAL position. The InfoCenter should display “traction not allowed” and the machine should not move. If the machine does move, there is a malfunction in the interlock system that should be corrected before beginning operation.

    Selecting a Blade

     Atomic BladeFlat-Sail BladeStandard-Sail BladeMedium-Sail Blade
    Grass conditionsWet, sticky, and spring growthLight or sparse turfNormal cuttingAll conditions to heavy growth
    Leaf mulchingWorks wellDo not useWorks wellWorks well
    ProsLess lift, breaks up clumped clippingsDoes not create lots of air flow in dusty, sandy, and sparse grassGood performance overallMore lift and less turbulence than standard blade, overall good
    ConsLess lift and less dispersion in heavy conditionsNot recommended for normal to heavy conditions  

    During Operation

    During Operation Safety

    General Safety

    • The owner/operator can prevent and is responsible for accidents that may cause personal injury or property damage.

    • Wear appropriate clothing, including eye protection; long pants; substantial, slip-resistant footwear; and hearing protection. Tie back long hair and do not wear loose clothing or loose jewelry.

    • Do not operate the machine while ill, tired, or under the influence of alcohol or drugs.

    • Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

    • Before you start the engine, ensure that all drives are in neutral, the parking brake is engaged, and you are in the operating position.

    • Do not carry passengers on the machine and keep bystanders and children out of the operating area.

    • Operate the machine only in good visibility to avoid holes or hidden hazards.

    • Avoid mowing on wet grass. Reduced traction could cause the machine to slide.

    • Keep your hands and feet away from rotating parts. Keep clear of the discharge opening.

    • Look behind and down before backing up to be sure of a clear path.

    • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision.

    • Stop the blades whenever you are not mowing.

    • Stop the machine, remove the key, and wait for all moving parts to stop before inspecting the attachment after striking an object or if there is an abnormal vibration in the machine. Make all necessary repairs before resuming operation.

    • Slow down and use caution when making turns and crossing roads and sidewalks with the machine. Always yield the right-of-way.

    • Disengage the drive to the cutting unit, shut off the engine, remove the key, and wait for all moving parts to stop before adjusting the height of cut (unless you can adjust it from the operating position).

    • Operate the engine only in well-ventilated areas. Exhaust gases contain carbon monoxide, which is lethal if inhaled.

    • Never leave a running machine unattended.

    • Before you leave the operator’s position, do the following:

      • Park the machine on a level surface.

      • Disengage the power takeoff and lower the attachments.

      • Engage the parking brake.

      • Shut off the engine and remove the key.

      • Wait for all movement to stop.

    • Operate the machine only in good visibility and appropriate weather conditions. Do not operate the machine when there is the risk of lightning.

    • Do not use the machine as a towing vehicle.

    • Use accessories, attachments, and replacement parts approved by Toro only.

    Rollover Protection System (ROPS) Safety

    • The ROPS is an integral and effective safety device.

    • Do not remove any of the ROPS components from the machine.

    • Ensure that the seat belt is attached to the machine.

    • Pull the belt strap over your lap and connect the belt to the buckle on the other side of the seat.

    • To disconnect the seat belt, hold the belt, press the buckle button to release the belt, and guide the belt into the auto-retract opening. Ensure that you can release the belt quickly in an emergency.

    • Check carefully for overhead obstructions and do not contact them.

    • Keep the ROPS in safe operating condition by thoroughly inspecting it periodically for damage and keeping all the mounting fasteners tight.

    • Replace damaged ROPS components. Do not repair or alter them.

    Additional ROPS Safety for Machines with a Cab or a Fixed Roll Bar

    • A cab installed by Toro is a roll bar.

    • Always wear your seat belt.

    Additional ROPS Safety for Machines with a Foldable Roll Bar

    • Keep a folding roll bar in the raised and locked position, and wear your seat belt when operating the machine with the roll bar in the raised position.

    • Lower a folding roll bar temporarily only when necessary. Do not wear the seat belt when the roll bar is folded down.

    • Be aware that there is no rollover protection when a folded roll bar is in the down position.

    • Check the area that you will be mowing and never fold down a folding roll bar in areas where there are slopes, drop-offs, or water.

    Slope Safety

    • Slopes are a major factor related to loss of control and rollover accidents, which can result in severe injury or death. You are responsible for safe slope operation. Operating the machine on any slope requires extra caution.

    • Evaluate the site conditions to determine if the slope is safe for machine operation, including surveying the site. Always use common sense and good judgment when performing this survey.

    • Review the slope instructions listed below for operating the machine on slopes and to determine whether you can operate the machine in the conditions on that day and at that site. Changes in the terrain can result in a change in slope operation for the machine.

    • Avoid starting, stopping, or turning the machine on slopes. Avoid making sudden changes in speed or direction. Make turns slowly and gradually.

    • Do not operate a machine under any conditions where traction, steering, or stability is in question.

    • Remove or mark obstructions such as ditches, holes, ruts, bumps, rocks, or other hidden hazards. Tall grass can hide obstructions. Uneven terrain could overturn the machine.

    • Be aware that operating the machine on wet grass, across slopes, or downhill may cause the machine to lose traction. Loss of traction to the drive wheels may result in sliding and a loss of braking and steering.

    • Use extreme caution when operating the machine near drop-offs, ditches, embankments, water hazards, or other hazards. The machine could suddenly roll over if a wheel goes over the edge or the edge caves in. Establish a safety area between the machine and any hazard.

    • Identify hazards at the base of the slope. If there are hazards, mow the slope with a pedestrian-controlled machine.

    • If possible, keep the cutting unit(s) lowered to the ground while operating on slopes. Raising the cutting unit(s) while operating on slopes can cause the machine to become unstable.

    • Use extreme caution with grass-collection systems or other attachments. These can change the stability of the machine and cause a loss of control.

    Starting the Engine

    Important: The fuel system automatically bleeds itself when any of the following situations occur:

    • Initial start up of a new machine.

    • The engine has ceased running due to lack of fuel.

    • Maintenance has been performed upon the fuel system components.

    1. Remove your foot from the traction pedal and ensure that it is in neutral. Ensure that the parking brake is set.

    2. Move the engine-speed switch to the LOW-IDLE position.

    3. Turn the ignition key to the RUN position.

      Note: The glow-plug indicator illuminates.

    4. When the glow indicator dims, turn the ignition key to the START position. Release the key immediately when the engine starts and allow it to return to the RUN position.

      Important: Do not run the starter motor more than 30 seconds at a time or premature starter failure may result. If the engine fails to start after 30 seconds, turn the key to the OFF position, check the controls and procedures, wait 30 additional seconds, and repeat the starting procedure.

    5. Allow engine to warm up at mid speed (without load), then move the throttle control to the desired position.

    Important: Allow engine to idle for 5 minutes before shutting it off after a full-load operation. Failure to do so may lead to turbo-charger trouble.

    Shutting Off the Engine

    Important: Allow the engine to idle for 5 minutes before shutting it off after a full-load operation. This allows the turbocharger to cool down before shutting off the engine. Failure to do so may lead to turbocharger trouble.

    Note: Lower the cutting units to the ground whenever machine is parked. This relieves the hydraulic load from the system, prevents wear on system parts, and also prevents accidental lowering of the cutting units.

    1. Move the throttle control backward to the SLOW position.

    2. Move the PTO switch to the OFF position.

    3. Engage the parking brake.

    4. Rotate the ignition key to the OFF position.

    5. Remove the key from the switch to prevent accidental starting.

    Understanding Smart Power

    With the Smart Power® function, you do not have to listen to the engine speed in heavy conditions. This function prevents bogging down in heavy turf by automatically controlling the machine speed and optimizing cutting performance. You can set a comfortable maximum ground speed and mow without having to manually reduce the traction speed when you mow in heavy conditions.

    Performing a Fan-Reverse Operation

    The machine-fan speed is controlled by the hydraulic-fluid temperature and engine-coolant temperature. When the hydraulic fluid or coolant reaches a certain temperature, a reverse fan cycle is automatically initiated. This cycle blows debris off the rear screen and lowers the engine-coolant and hydraulic-fluid temperatures.

    You can complete a manually-initiated reverse cycle by simultaneously pressing the right and left buttons on the InfoCenter. It is recommended that you manually reverse the fan before you leave the work area or enter the maintenance or storage area.

    Understanding Auto Idle

    The machine is equipped with auto idle, which automatically idles the engine when all the following functions are not used for a pre-determined time as previously set in the InfoCenter.

    • The traction pedal is returned to the NEUTRAL position.

    • The PTO is disengaged.

    • None of the lift switches are activated.

      When you initiate any of the above functions, the machine automatically returns to the previous throttle position.

    Using the Cruise Control

    The cruise-control switch locks in the pedal position to maintain the desired ground speed. Pressing the rear of the switch turns cruise control off, the middle position of the switch enables the cruise-control function, and the front of the switch sets the desired ground speed.

    Note: Pressing the brake pedal or moving the traction pedal into the reverse position, for 1 second, shuts off the cruise control.

    Diesel Particulate Filter Regeneration

    The diesel particulate filter (DPF) is part of the exhaust system. The diesel-oxidation catalyst of the DPF reduces harmful gasses and the soot filter removes soot from the engine exhaust.

    The DPF regeneration process uses heat from the engine exhaust to incinerate the soot accumulated on the soot filter, converting the soot to ash, and clears the channels of the soot filter so that filtered engine exhaust flows out the DPF.

    The engine computer monitors the accumulation of soot by measuring the back pressure in the DPF. If the back pressure is too high, soot is not incinerating in the soot filter through normal engine operation. To keep the DPF clear of soot, remember the following:

    • Passive regeneration occurs continuously while the engine is running—run the engine at full engine speed when possible to promote DPF regeneration.

    • If the back pressure in the DPF is too high or a reset regeneration has not occurred for 100 hours, the engine computer signals you through the InfoCenter when reset regeneration is running.

    • Allow the reset regeneration process to complete before shutting off the engine.

    Operate and maintain your machine with the function of the DPF in mind. Engine load at high idle (full throttle) engine speed generally produces adequate exhaust temperature for DPF regeneration.

    Important: Minimize the amount of time that you idle the engine or operate the engine at low-engine speed to help reduce the accumulation of soot in the soot filter.

    DPF Soot Accumulation

    • Over time, the diesel particulate filter accumulates soot in the soot filter. The computer for the engine monitors the soot level in the DPF.

    • When enough soot accumulates, the computer informs you that it is time to regenerate the DPF.

    • DPF regeneration is a process that heats the DPF to convert the soot to ash.

    • In addition to the warning messages, the computer reduces the power produced by the engine at different soot-accumulation levels.

    Engine Warning Messages—Soot Accumulation

    Indication LevelFault CodeEngine Power RatingRecommended Action
    Level 1: Engine Warning
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    The computer de-rates the engine power to 85%.Perform a parked regeneration as soon as possible; refer to Parked or Recovery Regeneration.
    Level 2: Engine Warning
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    The computer de-rates the engine power to 50%.Perform a recovery regeneration as soon as possible; refer to Parked or Recovery Regeneration.

    DPF Ash Accumulation

    • The lighter ash is discharged through the exhaust system; the heavier ash collects in the soot filter.

    • Ash is a residue of the regeneration process. Over time, the diesel particulate filter accumulates ash that does not discharge with the engine exhaust.

    • The computer for the engine calculates the amount of ash accumulated in the DPF.

    • When enough ash accumulates, the engine computer sends information to the InfoCenter in the form of an engine fault to indicate the accumulation of ash in the DPF.

    • The fault messages indicate that it is time to service the DPF.

    • In addition to the warnings, the computer reduces the power produced by the engine at different ash-accumulation levels.

    InfoCenter Advisory and Engine Warning Messages—Ash Accumulation

    Indication LevelFault CodeEngine Speed ReductionEngine Power RatingRecommended Action
    Level 1: Engine Warning
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    NoneThe computer de-rates the engine power to 85%.Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter
    Level 2: Engine Warning
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    NoneThe computer de-rates the engine power to 50%.Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter
    Level 3: Engine Warning
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    Engine speed at maximum torque + 200 rpmThe computer de-rates the engine power to 50%.Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter

    Types of Diesel Particulate Filter Regeneration

    Types of diesel particulate filter regeneration that are performed while the machine is operating:

    Type of RegenerationConditions that cause DPF regenerationDPF description of operation
    PassiveOccurs during normal operation of the machine at high-engine speed or high-engine load• The InfoCenter does not display an icon indicating passive regeneration.
    • During passive regeneration, the DPF processes high-heat exhaust gasses, oxidizing harmful emissions, and burning soot to ash.
    Refer to Passive DPF Regeneration.
    AssistOccurs because of low-engine speed, low-engine load, or after the computer detects the DPF is becoming obstructed with soot• The InfoCenter does not display an icon indicating assist regeneration.
    • During assist regeneration, the engine computer adjusts the engine settings to raise the exhaust temperature.
    Refer to Assist DPF Regeneration.
    ResetOccurs every 100 hours• When the high exhaust-temperature icon Graphic is displayed in the InfoCenter, a regeneration is in progress.
    Also occurs after assist regeneration only if the computer detects that assist regeneration did not sufficiently reduce the soot level
     • During reset regeneration, the engine computer adjusts the engine settings to raise the exhaust temperature.
    Refer to Reset Regeneration.

    Types of diesel particulate filter regeneration that require you to park the machine:

    Type of RegenerationConditions that cause DPF regenerationDPF description of operation
    ParkedOccurs because the computer detects back pressure in the DPF due to soot buildup• When the reset-standby/parked or recovery regeneration icon Graphic or ADVISORY #188 displays in the InfoCenter, a regeneration is requested.
    Also occurs because the operator initiates a parked regeneration
    May occur because you set the InfoCenter to inhibit reset regeneration and continued operating the machine, adding more soot when the DPF already needs a reset regeneration• Perform the parked regeneration as soon as possible to avoid needing a recovery regeneration.
    May result from using the incorrect fuel or engine oil• A parked regeneration requires 30 to 60 minutes to complete.
     • You must have at least a 1/4 tank of fuel in the tank.
    • You must park the machine to perform a parked regeneration.
    Refer to Parked or Recovery Regeneration.
    RecoveryOccurs because the operator ignored requests for a parked regeneration and continued operating the machine, adding more soot to the DPF• When the reset-standby/parked or recovery regeneration icon Graphic or ADVISORY #190 displays in the InfoCenter, a recovery regeneration is requested.
    • A recovery regeneration requires up to 3 hours to complete.
    • You must have at least a 1/2 tank of fuel in the machine.
    • You must park the machine to perform a recovery regeneration.
    Refer to Parked or Recovery Regeneration.

    Accessing the DPF Regeneration Menus

    Accessing the DPF Regeneration Menus

    1. Access the Service menu, press the center button to scroll down to the DPF REGENERATION option (Figure 40).

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    2. Press the right button to select the DPF Regeneration entry (Figure 40).

    Time Since Last Regeneration

    Access the DPF Regeneration menu, press the center button to scroll down to the LAST REGEN field (Figure 41).

    Use the LAST REGEN field to determine how many hours you have run the engine since the last reset, parked, or recovery regeneration.

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    Technician Menu

    Important: For operating convenience, you may decide to perform a parked regeneration before the soot load reaches 100%, provided the engine has run more than 50 hours since the last successful reset, parked, or recovery regeneration.

    Use the technician menu to view the current state of engine regeneration control and view the reported soot level.

    Access the DPF Regeneration menu, press the center button to scroll down to the TECHNICIAN option, and press the right button to select the Technician entry (Figure 42).

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    • Use the DPF operation table to understand the current state of DPF operation (Figure 43).

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      .

      DPF Operation Table

      StateDescription
      NormalThe DPF is in normal-operating mode—passive regeneration.
      Assist RegenThe engine computer is performing an assist regeneration.
      Reset StbyThe engine computer is trying to run a reset regeneration, but 1 of the following conditions prevents regeneration:The regen inhibit setting is set to ON.
      The exhaust temperature is too low for regeneration.
      Reset RegenThe engine computer is running a reset regeneration.
      Parked StbyThe engine computer is requesting that you run a parked regeneration.
      Parked RegenYou initiated a parked regeneration request and the engine computer is processing the regeneration.
      Recov. StbyThe engine computer is requesting that you run a recovery regeneration.
      Recov. RegenYou initiated a recovery regeneration request and the engine computer is processing the regeneration.
    • View the soot load which is measured as the percentage of soot in the DPF (Figure 44); refer to the soot-load table.

      Note: The soot load value varies as the machine is operated and DPF regeneration occurs.

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      Soot-Load Table

      Important Soot Load ValuesRegeneration State
      0% to 5%Minimum soot load range
      78%The engine computer performs an assist regeneration.
      100%The engine computer automatically requests a parked regeneration.
      122%The engine computer automatically requests a recovery regeneration.

    Passive DPF Regeneration

    • Passive regeneration occurs as part of normal engine operation.

    • While operating the machine, run the engine at full-engine speed and high load when possible to promote DPF regeneration.

    Reset Regeneration

    Caution

    The exhaust temperature is hot (approximately 600°C (1,112°F) during DPF regeneration. Hot exhaust gas can harm you or other people.

    • Never operate the engine in an enclosed area.

    • Make sure that there are no flammable materials around the exhaust system.

    • Never touch a hot exhaust system component.

    • Never stand near or around the exhaust pipe of the machine.

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    • The high exhaust-temperature icon Graphic displays in the InfoCenter (Figure 45).

    • The engine computer adjusts engine settings to raise the exhaust temperature.

      Important: The high exhaust-temperature icon indicates that the exhaust temperature discharged from of your machine may be hotter than during regular operation.

    • While operating the machine, run the engine at full engine speed and high load when possible to promote DPF regeneration.

    • The icon displays in the InfoCenter while the reset regeneration is processing.

    • Whenever possible, do not shut off the engine or reduce engine speed while the reset regeneration is processing.

      Important: Whenever possible, allow the machine to complete the reset regeneration process before shutting off the engine.

    Periodic Reset Regeneration

    If the engine has not completed a successful Reset, Parked, or Recovery regeneration in the previous 100 hours of engine operation, the engine computer will attempt to perform a reset regeneration.

    Setting the Inhibit Regen

    Reset Regeneration Only

    Note: If you set the InfoCenter to inhibit regeneration, the InfoCenter displays ADVISORY #185 (Figure 46) every 15 minutes while the engine requests a reset regeneration.

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    A reset regeneration produces the elevated engine exhaust. If you are operating the machine around trees, brush, tall grass, or other temperature-sensitive plants or materials, you can use the Inhibit Regen setting to prevent the engine computer from performing a reset regeneration.

    Important: When you shut off the engine and start it again, the inhibit regen setting defaults to OFF.

    1. Access the DPF Regeneration menu, press the center button to scroll down to the INHIBIT REGEN option, and press the right button to select the Inhibit Regen entry (Figure 47).

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    2. Press the right button to change the inhibit regeneration setting from On to Off (Figure 47) or from Off to On (Figure 48).

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    Assist DPF Regeneration

    • The engine computer adjusts engine settings to raise the exhaust temperature.

    • While operating the machine, run the engine at full engine speed and high load when possible to promote DPF regeneration.

    Parked or Recovery Regeneration

    • When the engine computer requests either a parked regeneration or a recovery regeneration, the regeneration request icon (Figure 49) displays in the InfoCenter.

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    • The machine does not automatically perform a parked regeneration or a recovery regeneration, you must run the regeneration through the InfoCenter.

    Parked Regeneration Messages

    When a parked regeneration is requested by the engine computer the following messages display in the InfoCenter:

    • Engine warning SPN 3720, FMI 16 (Figure 50)

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    • Parked regeneration required ADVISORY #188 (Figure 51)

      Note: Advisory #188 displays every 15 minutes.

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    • If you do not perform a parked regeneration within 2 hours, the InfoCenter displays parked regeneration required—power takeoff disabled ADVISORY #189 (Figure 52).

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      Important: Perform a parked regeneration to restore the PTO function; refer to Preparing to Perform a Parked or Recovery Regeneration and Performing a Parked or Recovery Regeneration.

      Note: The Home screen displays the PTO disabled Icon (Figure 53).

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    Recovery Regeneration Messages

    When a recovery regeneration is requested by the engine computer, the following messages display in the InfoCenter:

    • Engine warning SPN 3719, FMI: 0 (Figure 54)

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    • Recovery regeneration required—power takeoff disabled ADVISORY #190 (Figure 55)

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    Important: Perform a recovery regeneration to restore the PTO function; refer to Preparing to Perform a Parked or Recovery Regeneration and Performing a Parked or Recovery Regeneration.

    Note: The Home screen displays the PTO disabled Icon; refer to Figure 53 in Parked Regeneration Messages.

    DPF Status-Limitation

    • If the engine computer requests a recovery regeneration or is processing a recovery regeneration and you scroll down to the PARKED REGEN option, parked regeneration locks and the lock icon (Figure 56) appears in the lower right corner of the InfoCenter.

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    • If the engine computer has not requested a recovery regeneration and you scroll down to the RECOVERY REGEN option, the recovery regeneration locks and the lock icon (Figure 57) appears in the lower right corner of the InfoCenter.

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    Preparing to Perform a Parked or Recovery Regeneration

    1. Ensure that the machine has fuel in the tank for the type of regeneration you are performing:

      • Parked Regeneration: Ensure that you have 1/4 tank of fuel before performing the parked regeneration.

      • Recovery Regeneration: Ensure that you have 1/2 tank of fuel before performing the recovery regeneration.

    2. Move the machine outside to an area away from combustible materials.

    3. Park the machine on a level surface.

    4. Ensure that the traction control or motion-control levers are in the NEUTRAL position.

    5. If applicable, shut off the PTO, and lower the cutting units or accessories.

    6. Engage the parking brake.

    7. Set the throttle to the low IDLE position.

    Performing a Parked or Recovery Regeneration

    Caution

    The exhaust temperature is hot (approximately 600°C (1,112°F) during DPF regeneration. Hot exhaust gas can harm you or other people.

    • Never operate the engine in an enclosed area.

    • Make sure that there are no flammable materials around the exhaust system.

    • Never touch a hot exhaust system component.

    • Never stand near or around the exhaust pipe of the machine.

    Important: The computer of the machine cancels DPF regeneration if you increase the engine speed from low idle or release the parking brake.

    1. Access the DPF Regeneration menu, press the center button to scroll down to either the PARKED REGEN START option or the RECOVERY REGEN START option (Figure 58), and press the right button to select the start the regeneration (Figure 58).

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    2. At the VERIFY FUEL LEVEL screen, verify that you have 1/4 tank of fuel if you are performing the parked regeneration or 1/2 tank of fuel if you are performing the recovery regeneration, and press the right button to continue (Figure 59).

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    3. At the DPF checklist screen, verify that the parking brake is engaged and that the engine speed is set to low idle (Figure 60).

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    4. At the INITIATE DPF REGEN screen, press the right button to continue (Figure 61).

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    5. The InfoCenter displays the INITIATING DPF REGEN message (Figure 62).

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    6. The InfoCenter displays the time to complete message (Figure 63).

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    7. The engine computer checks the engine state and fault information. The InfoCenter may display the following messages found in the table that follows:

      Check Message and Corrective Action Table

      Graphic
      Corrective Action: Exit the regeneration menu and run the machine until the time since last regeneration is greater than 50 hours; refer to Time Since Last Regeneration.
      GraphicGraphic
      Corrective Action: Troubleshoot the engine fault and retry DPF regeneration.
      GraphicGraphic
      Corrective Action: Start and run the engine.
      GraphicGraphic
      Corrective Action: Run the engine to warm the coolant temperature to 60°C (140°F).
      GraphicGraphic
      Corrective Action: Change the engine speed to low idle.
      GraphicGraphic
      Corrective Action: Troubleshoot the engine computer condition and retry DPF regeneration.
    8. The InfoCenter displays the home screen and the regeneration acknowledge icon (Figure 64) appears in the lower right corner of the screen as the regeneration processes.

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      Note: While the DPF regeneration runs, the InfoCenter displays the high exhaust-temperature icon Graphic.

    9. When the engine computer completes a parked or recovery regeneration, the InfoCenter displays ADVISORY #183 (Figure 65). Press the left button to exit to the home screen.

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      Note: If the regeneration fails to complete, the InfoCenter displays Advisory #184 (Figure 65). Press the left button to exit to the home screen.

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    Canceling a Parked or Recovery Regeneration

    Use the Parked Regen Cancel or Recovery Regen Cancel setting to cancel a running parked or recovery regeneration process.

    1. Access the DPF Regeneration menu (Figure 67).

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    2. Press the center button to scroll down to the PARKED REGEN CANCEL (Figure 67) or the RECOVERY REGEN CANCEL option (Figure 68).

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    3. Press the right button to select the Regen Cancel entry (Figure 67 or Figure 68).

    Using the Engine-Speed Switch

    The engine speed switch has 2 modes to change the engine speed. By momentarily tapping the switch, the engine speed can be increased or decreased in 100-rpm increments. By holding the switch down, the engine automatically moves to HIGH or LOW IDLE, depending on which side of the switch you press.

    Adjusting the Mowing Speed

    Supervisor (Protected Menu)

    This feature allows the supervisor to set the maximum mowing speed in increments of 5% between 30 and 100%, at which the operator can mow (low range).

    Operator

    This feature allows the operator to adjust the maximum mowing speed (low range), within the supervisors pre-adjusted settings. When in the InfoCenter splash or main screen, press the middle button (Graphic icon) to adjust the speed.

    Note: When switching between low and high ranges, the settings will transfer based on the previous setting. The settings are reset when the machine is turned off.

    Note: You can also use this feature with cruise control.

    Adjusting the Transport Speed

    Supervisor (Protected Menu)

    This feature allows the supervisor to set the maximum transport speed in increments of 5% between 30 and 100%, at which the operator can transport (high range).

    Refer to Adjusting the Transport Speed for the procedure to set the transport speed.

    Operator

    This feature allows the operator to adjust the maximum transport speed (high range) within the supervisors pre-adjusted settings. When in the InfoCenter splash or main screen, press the middle button (Graphic icon) to adjust the speed.

    Note: When switching between low and high ranges, the settings transfer based on the previous setting. The settings are reset when the machine is turned off.

    Note: You can also use this feature in conjunction with cruise control.

    Understanding the Operating Characteristics of the Machine

    Practice driving the machine, because it has a hydrostatic transmission and its characteristics are different than many turf-maintenance machines. Some points to consider when operating the traction unit, cutting unit, or other implements are that the transmission, engine speed, load on the mower blades or other implement components affect machine performance.

    With Toro Smart Power™, you do not need to listen to the engine speed in heavy conditions. Smart Power prevents bogging down in heavy turf by automatically controlling the machine speed and optimizing cutting performance.

    You can use the brakes to assist in turning the machine. However, use them carefully, especially on soft or wet grass, because the turf may be torn accidentally. Another benefit of the brakes is to maintain traction. For example, in some slope conditions, the uphill wheel slips and loses traction. If this situation occurs, press the uphill brake pedal gradually and intermittently until the uphill wheel stops slipping, which increases traction on the downhill wheel.

    Traction Assist is automatic and requires no operator input. When a wheel starts to slip, flow is automatically split between the front and rear wheels to minimize wheel slip and loss of traction.

    Use extra care when operating the machine on slopes. Ensure that the ROPS is in the raised position, the seat latch is properly secured, and the seat belt is buckled. Drive slowly and avoid sharp turns on slopes to prevent rollovers. For steering control, the cutting unit must be lowered when going downhill.

    Before shutting off the engine, disengage all controls and change the throttle to the SLOW position. Changing the throttle to the SLOW position reduces high-engine speed, noise, and vibration. Turn the key to the OFF position to shut off the engine.

    Before transporting the machine, raise the cutting units and secure the transport latches (Figure 69).

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    Operating Tips

    Operating the Machine

    • Start the engine and run it at the HALF IDLE position until it warms up. Move the engine-speed switch to HIGH IDLE, lift the cutting units, disengage the parking brake, press the forward traction pedal, and carefully drive to an open area.

    • Practice moving forward and reverse, and starting and stopping the machine. To stop the machine, remove your foot from the traction pedal and let it return to NEUTRAL or press down on the reverse pedal.

      Note: When going downhill in the machine, you may need to use the reverse pedal to stop.

    • Practice driving around obstacles with the cutting units up and down. Be careful when driving between narrow objects so that you do not damage the machine or cutting units.

    • Always drive slowly in rough areas.

    • If an obstacle is in the way, lift the cutting units to mow around it.

    • When transporting the machine from 1 work area to another, raise the cutting units to the fully upward position, shut off the PTO, press the mow/transport switch to the TRANSPORT position, and place the throttle in the FAST position.

    Changing Mowing Patterns

    Change mowing patterns often to minimize a poor after-cut appearance from repeatedly mowing in the same direction.

    Understanding Counterbalance

    The counterbalance system maintains hydraulic back pressure on the deck-lift cylinders. This pressure improves traction by transferring the mower-deck weight to the mower-drive wheels. The counterbalance pressure has been set at the factory to an optimal balance of after-cut appearance and traction capability in most turf conditions.

    Decreasing the counterbalance setting can produce a more stable cutting unit, but can decrease the traction capability. Increasing the counterbalance setting can increase the traction capability, but may result in a poor after-cut appearance. Refer to the machine Service Manual for your traction unit for instructions to adjust the counterbalance pressure.

    Resolving After-Cut Appearance

    Refer to the After-cut Appearance Troubleshooting Guide available at www.Toro.com.

    Using Proper Mowing Techniques

    • To begin cutting, engage the cutting units, then approach the mowing area slowly.

    • To achieve the professional straight-line cut and striping that is desirable for some applications, find a tree or other object in the distance and drive straight toward it.

    • As soon as the front cutting units reach the edge of the mowing area, perform a teardrop-shaped turn to quickly line up for your next pass.

    • Bolt-in mulching baffles are available for the cutting units. The mulching baffles perform well when you maintain turf on a regular schedule to avoid removing more than 25 mm (1 inch) of growth per cutting. When you cut too much growth with the mulching baffles installed, the after-cut appearance may deteriorate and the observed power to cut the turf increases. The mulching baffles also perform well for shredding leaves in the fall.

    Selecting the Proper Height-of-Cut Setting to Suit Conditions

    Remove no more than approximately 25 mm (1 inch), or 1/3 of the grass blade when cutting. In exceptionally lush and dense grass, you may need to raise your height-of-cut setting.

    Mowing with Sharp Blades

    A sharp blade cuts cleanly and without tearing or shredding the grass blades like a dull blade. Tearing and shredding causes the grass to turn brown at the edges, which impairs growth and increases susceptibility to diseases. Ensure that the blade is in good condition and that there is a full sail.

    Checking the Condition of the Cutting Unit

    Ensure that the cutting chambers are in good condition. Straighten any bends in the chamber components to ensure correct blade tip/chamber clearance.

    Maintaining the Machine after Mowing

    After mowing, thoroughly wash the machine with a garden hose with no nozzle to avoid contamination and damage to the seals and bearings caused by excessive water pressure. Ensure that the radiator and oil cooler are kept free of dirt or grass clippings. After cleaning, inspect the machine for possible hydraulic-fluid leaks, damage, or wear to the hydraulic and mechanical components, and check the cutting-unit blades for sharpness.

    Maximizing the Air Conditioner Performance

    • To limit solar heating, park the machine in a shaded area or leave the doors open in direct sun.

    • Ensure that the air-conditioning-condenser fins are clean.

    • Operate the air-conditioner blower at the mid-speed setting.

    • Verify that a continuous seal exists between the roof and the headliner. Correct the seal as required.

    • Measure the air temperature at the front center vent in the headliner.

      Note: The air temperature typically stabilizes at less than or equal to 10°C (50°F).

    • Refer to the Service Manual for additional information.

    After Operation

    General Safety

    • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position, Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

    • Clean grass and debris from the cutting units, mufflers, and engine compartment to help prevent fires. Clean up oil or fuel spills.

    • If the cutting units are in the transport position, use the positive mechanical lock (if available) before you leave the machine unattended.

    • Allow the engine to cool before storing the machine in any enclosure.

    • Remove the key and shut off the fuel (if equipped) before storing or hauling the machine.

    • Never store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or on other appliances.

    • Maintain and clean the seat belt(s) as necessary

    Pushing or Towing the Machine

    In an emergency, you can move the machine forward by actuating the bypass valve in the variable-displacement hydraulic pump and pushing or towing the machine.

    Important: Do not push or tow the machine faster than 3 to 4.8 km/h (2 to 3 mph) If you push or tow at a faster speed, internal transmission damage may occur.The bypass valves must be open whenever you push or tow the machine.

    1. Raise the seat and locate the bypass valves, which are located below the front of the fuel tank (Figure 70).

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    2. Rotate each valve 3 counter-clockwise turns to open and allow the fluid to bypass internally.

      Note: Do not open more than 3 turns. Because the fluid is bypassed, the machine can be slowly moved without damaging the transmission.

    3. Push or tow the machine.

    4. Finish pushing or towing the machine and close the bypass valves. Torque the valve to 70 N∙m (52 ft-lb).

      Important: Ensure that the bypass valve is closed before you start the engine. Running the engine with an open bypass valve causes the transmission to overheat.

    Important: If you must push or tow the machine in reverse, bypass the check valve in the 4-wheel drive manifold.To bypass the check valve, connect a hose assembly to the reverse traction pressure test port (located on the hydrostat) and on the port located between ports M8 and P2 on the rear traction manifold (located behind the front tire). The hose assembly includes 1 hose (Part No. 95-8843), 2 coupler fittings (Part No. 95-0985), and 2 hydraulic fittings (Part No. 340-77).

    Locating the Jacking Points

    Danger

    Mechanical or hydraulic jacks may fail to support machine and cause a serious injury.

    • Use jack stands when supporting the machine.

    • Do not use hydraulic jacks.

    There are jacking points located at the front and rear of the machine.

    • On the frame at the inside of each front drive tire

    • At the center of the rear axle

    Hauling the Machine

    • Remove the key and shut off the fuel (if equipped) before storing or hauling the machine.

    • Use care when loading or unloading the machine into a trailer or a truck.

    • Use full-width ramps for loading the machine into a trailer or a truck.

    • Tie the machine down securely.

    Locating the Tie-Down Points

    There are tie downs located at the front and rear sides of the machine (Figure 71).

    Note: Use properly-rated DOT-approved straps in 4 corners to tie down the machine.

    • 2 on the front of the operator's platform

    • Rear bumper

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    Maintenance

    Note: Determine the left and right sides of the machine from the normal operating position.

    Important: Refer to your engine owner’s manual for additional maintenance procedures.

    Note: Download a free copy of the electrical or hydraulic schematic by visiting www.Toro.com and searching for your machine from the Manuals link on the home page.

    Important: If you are performing maintenance on the machine and run the engine with an engine exhaust-extraction duct, set the inhibit regen setting to ON; refer to Setting the Inhibit Regen.

    Maintenance Safety

    • Before you leave the operator’s position, do the following:

      • Park the machine on a level surface.

      • Disengage the power takeoff and lower the attachments.

      • Engage the parking brake.

      • Shut off the engine and remove the key.

      • Wait for all movement to stop.

    • Allow machine components to cool before performing maintenance.

    • If the cutting units are in the transport position, use the positive mechanical lock (if equipped) before you leave the machine unattended.

    • If possible, do not perform maintenance while the engine is running. Keep away from moving parts.

    • Support the machine with jack stands whenever you work under the machine.

    • Carefully release pressure from components with stored energy.

    • Keep all parts of the machine in good working condition and all hardware tightened, especially blade-attachment hardware.

    • Replace all worn or damaged decals.

    • To ensure safe, optimal performance of the machine, use only genuine Toro replacement parts. Replacement parts made by other manufacturers could be dangerous, and such use could void the product warranty.

    Recommended Maintenance Schedule(s)

    Maintenance Service IntervalMaintenance Procedure
    After the first hour
  • Torque the wheel lug nuts.
  • After the first 10 hours
  • Torque the wheel lug nuts.
  • Check the alternator-belt tension.
  • Check the compressor belt tension.
  • Check the blade-drive-belt tension.
  • After the first 50 hours
  • Change the front planetary-gear oil.
  • After the first 200 hours
  • Change the rear-axle lubricant.
  • Before each use or daily
  • Check the tire pressure.
  • Check the safety-interlock switches.
  • Check the engine-oil level.
  • Check the air-cleaner indicator
  • Drain water or other contaminants from the water separator.
  • Check the coolant level.
  • Check the hydraulic-fluid level.
  • Remove all debris and chaff from the engine compartment, radiator and oil cooler.
  • Check the interlock-switch operation.
  • Clean the machine.
  • Clean and maintain the seat belt.
  • Every 25 hours
  • Check the electrolyte level(or every 30 days if the machine is in storage).
  • Every 50 hours
  • Lubricate all bearings and bushings.
  • Inspect the air cleaner.
  • Check the condition of the battery.
  • Check the blade-drive-belt tension.
  • Every 100 hours
  • Inspect the cooling-system hoses and clamps.
  • Check the alternator-belt tension.
  • Check the compressor belt tension.
  • Every 200 hours
  • Torque the wheel lug nuts.
  • Every 250 hours
  • Clean the cab air filters; replace them if they are torn or excessively dirty.
  • Clean the air-conditioning coil.(Clean more frequently in extremely dusty or dirty conditions)
  • Every 400 hours
  • Service the air cleaner (earlier if the air cleaner indicator shows red, and more frequently in extremely dirty or dusty conditions).
  • Inspect the fuel lines and connections.
  • Replace the filter canister.
  • Replace the engine fuel filter.
  • Check for end-play in the planetary drives.
  • Check the rear-axle lubricant.
  • Check the rear-axle-gearbox lubricant.
  • Every 500 hours
  • Change the engine oil and filter.
  • Every 800 hours
  • Change the front planetary-gear oilor yearly, whichever comes first.
  • Change the rear-axle lubricant.
  • Check the rear wheel toe-in.
  • Inspect the blade-drive belt.
  • If you are not using the recommended hydraulic fluid or have ever filled the reservoir with an alternative fluid, change the hydraulic fluid.
  • If you are not using the recommended hydraulic fluid or have ever filled the reservoir with an alternative fluid, replace the hydraulic filter (sooner if the service interval indicator is in the red zone).
  • Inspect the cutting unit caster-wheel assemblies.
  • Every 1,000 hours
  • Drain and clean the fuel tank.
  • If you are using the recommended hydraulic fluid, replace the hydraulic filter (sooner if the service interval indicator is in the red zone).
  • Check and adjust the valve clearance.
  • Every 2,000 hours
  • If you are using the recommended hydraulic fluid, change the hydraulic fluid.
  • Every 6,000 hours
  • Disassemble, clean, and assemble the soot filter of the DPF.or clean the soot filter if engine faults spn 3720 fmi 16, spn 3720 fmi 0, or spn 3720 fmi 16 display in the InfoCenter.
  • Before storage
  • Drain and clean the fuel tank.
  • Every 2 years
  • Flush the cooling system and replace the fluid.
  • Drain and flush the hydraulic tank.
  • Replace moving hoses.
  • Caution

    If you leave the key in the ignition switch, someone could accidently start the engine and seriously injure you or other bystanders.

    Remove the key from the ignition before you do any maintenance.

    Pre-Maintenance Procedures

    Opening the Hood

    1. Close the rear window of the cab (Figure 72).

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    2. Release the 2 latches at the forward lower corners of the hood (Figure 73).

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    3. Using the handles that are adjacent to the latches, lift up and back the hood until the 2 prop rods are seated in the 2 rod brackets (Figure 73).

    Removing the Hood

    1. Unlatch and raise the hood.

    2. Remove the hairpin cotter securing the hood pivot to the mounting brackets (Figure 74).

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    3. Slide the hood to the right side, lift the other side, and pull it out of the brackets.

    Note: Reverse this procedure to install the hood.

    Lubrication

    Greasing the Bearings and Bushings

    Maintenance Service IntervalMaintenance Procedure
    Every 50 hours
  • Lubricate all bearings and bushings.
  • The machine has grease fittings that you must lubricate regularly with No. 2 lithium grease. Also, lubricate the machine immediately after every washing.

    The grease-fitting locations and quantities are:

    Traction Unit

    • 2 brake pedal pivot-shaft bearings (Figure 75)

    • 2 front and rear-axle-pivot bushings (Figure 76)

    • 2 steering-cylinder-ball joints (Figure 77)

    • 2 tie-rod-ball joints (Figure 77)

    • 2 king-pin bushings (Figure 77).

      Note: Lubricate only the top fitting on the king pin annually (2 pumps).

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    Center Cutting Unit

    Note: You may need to raise the cutting unit to expose the grease fittings for the latch pivot and the lower link.

    • 2 latch pivots (Figure 79)

      Note: You may need to manually trip the latches to gain access to the grease fittings (Figure 78). Use a pry bar to close and open the latch.

    • 2 caster-fork-shaft bushings (Figure 80)

    • 3 spindle-shaft bearings—located under the pulley (Figure 81)

    • 2 idler-arm-pivot bushings (Figure 81)

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    Center-Deck-Lift Assemblies

    • 2 (each side) lift-arm-cylinder bushings (Figure 82)

    • 2 lift-arm ball joints (Figure 83)

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    Wing-Deck-Lift Assemblies

    The 4 wing deck-lift cylinder (Figure 84)

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    Wing Cutting Units

    • 1 caster-fork-shaft bushing (Figure 85)

    • 2 (each side) spindle-shaft bearings—located under the pulley

    • 1 idler-arm-pivot bushings—located on the idler arm

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    Engine Maintenance

    Engine Safety

    • Shut off the engine and remove the key before checking the oil or adding oil to the crankcase.

    • Do not change the governor speed or overspeed the engine.

    Servicing the Engine Oil

    Oil Specification

    Use high-quality, low-ash engine oil that meets or exceeds the following specifications:

    • API service category CJ-4 or higher

    • ACEA service category E6

    • JASO service category DH-2

    Important: Using engine oil other than API CJ-4 or higher, ACEA E6, or JASO DH-2 may cause the diesel particulate filter to plug or cause engine damage.

    Use the following engine oil viscosity grade:

    • Preferred oil: SAE 15W-40 (above 0°F)

    • Alternate oil: SAE 10W-30 or 5W-30 (all temperatures)

    Toro Premium Engine Oil is available from your authorized Toro distributor in either 15W-40 or 10W-30 viscosity grades. See the Parts Catalog for part numbers.

    Checking the Engine-Oil Level

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the engine-oil level.
  • The engine is shipped with oil in the crankcase; however, the oil level must be checked before and after the engine is first started.

    Important: Check the engine oil daily. If the engine-oil level is above the Full mark on the dipstick, the engine oil may be diluted with fuel;If the engine oil level is above the Full mark, change the engine oil.

    The best time to check the engine oil is when the engine is cool before it has been started for the day. If it has already been run, allow the oil to drain back down to the sump for at least 10 minutes before checking. If the oil level is at or below the Add mark on the dipstick, add oil to bring the oil level to the Full mark. Do not overfill the engine with oil.

    Important: Keep the engine-oil level between the upper and lower limits on the dipstick; the engine may fail if you run it with too much or too little oil.

    Check the engine-oil level; refer to Figure 86.

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    Note: When using different oil, drain all old oil from the crankcase before adding new oil.

    Crankcase Oil Capacity

    Approximately 5.7 L (6 US qt) with the filter.

    Changing the Engine Oil and Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 500 hours
  • Change the engine oil and filter.
    1. Start the engine and let it run 5 minutes to allow the oil to warm up.

    2. With the machine parked on a level surface, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Replace the engine oil and filter (Figure 87).

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    4. Add oil to the crankcase.

    Servicing the Air Cleaner

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the air-cleaner indicator
  • Every 50 hours
  • Inspect the air cleaner.
  • Every 400 hours
  • Service the air cleaner (earlier if the air cleaner indicator shows red, and more frequently in extremely dirty or dusty conditions).
  • Check the air-cleaner body for damage, which could cause an air leak. Replace it if it is damaged. Check the whole intake system for leaks, damage, or loose hose clamps.

    Service the air-cleaner filter only when the service indicator requires it (Figure 88). Changing the air filter before it is necessary only increases the chance of dirt entering the engine when you remove the filter.

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    Important: Be sure that the cover is seated correctly and seals with the air-cleaner body.

    1. Replace the air cleaner (Figure 89).

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      Note: Do not clean the used element due to the possibility of damage to the filter media.

      Important: Never attempt to clean the safety filter (Figure 90). Replace the safety filter after every 3 primary filter services.

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    2. Reset the indicator (Figure 88) if it shows red.

    Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 6,000 hours
  • Disassemble, clean, and assemble the soot filter of the DPF.or clean the soot filter if engine faults spn 3720 fmi 16, spn 3720 fmi 0, or spn 3720 fmi 16 display in the InfoCenter.
    • If advisory message displays in the InfoCenter, the DPF is nearing the recommended point for servicing the diesel-oxidation catalyst and the soot filter.

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    • If engine faults , , or in the InfoCenter (Figure 92) display in the InfoCenter, clean the soot filter using the steps that follow:

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      1. Refer to the Engine section in the Service Manual for information on disassembling and assembling the diesel-oxidation catalyst and the soot filter of the DPF.

      2. Refer to your authorized Toro distributor for diesel-oxidation catalyst and the soot filter replacement parts or service.

      3. Contact your authorized Toro distributor to have them reset the engine ECU after you install a clean DPF.

    Fuel System Maintenance

    Servicing the Fuel System

    Draining the Fuel Tank

    Maintenance Service IntervalMaintenance Procedure
    Every 1,000 hours
  • Drain and clean the fuel tank.
  • Before storage
  • Drain and clean the fuel tank.
  • In addition to the listed service interval, drain and clean the tank if the fuel system becomes contaminated or if you are storing the machine for an extended period. Use clean fuel to flush out the tank.

    Inspecting the Fuel Lines and Connections

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Inspect the fuel lines and connections.
  • Inspect the fuel lines for deterioration, damage, or loose connections.

    Servicing the Water Separator

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Drain water or other contaminants from the water separator.
  • Every 400 hours
  • Replace the filter canister.
  • Service the water separator as shown in Figure 93.

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    Servicing the Fuel Filter

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Replace the engine fuel filter.
    1. Clean the area around the fuel-filter head (Figure 94).

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    2. Remove the filter and clean the filter head mounting surface (Figure 94).

    3. Lubricate the filter gasket with clean lubricating engine oil; refer to the engine owner's manual for additional information.

    4. Install the dry filter canister by hand until the gasket contacts the filter head, then rotate it an additional 1/2 turn.

    5. Start the engine and check for fuel leaks around the filter head.

    Electrical System Maintenance

    Electrical System Safety

    • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last.

    • Charge the battery in an open, well-ventilated area, away from sparks and flames. Unplug the charger before connecting or disconnecting the battery. Wear protective clothing and use insulated tools.

    Servicing the Battery

    Maintenance Service IntervalMaintenance Procedure
    Every 25 hours
  • Check the electrolyte level(or every 30 days if the machine is in storage).
  • Every 50 hours
  • Check the condition of the battery.
  • Important: Before welding on the machine, disconnect the negative cable from the battery to prevent damage to the electrical system.

    Note: Keep the terminals and the entire battery case clean because a dirty battery discharges slowly. To clean the battery, wash the entire case with a solution of baking soda and water. Rinse with clear water. Coat the battery posts and cable connectors with Grafo 112X (skin-over) grease (Toro Part No. 505-47) or petroleum jelly to prevent corrosion.

    1. Open the battery cover on the side of the shroud (Figure 95).

      Note: Press down on the flat surface above the battery cover to ease the removal of the cover (Figure 95).

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    2. Remove the rubber boot from the positive terminal and inspect the battery.

      Warning

      Battery terminals or metal tools could short against metal components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

      • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine.

      • Do not allow metal tools to short between the battery terminals and metal parts of the machine.

      Warning

      Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.

      • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable.

      • Always connect the positive (red) battery cable before connecting the negative (black) cable.

    3. Coat both battery connections with Grafo 112X (skin-over) grease (Toro Part No. 505-47), petroleum jelly, or light grease to prevent corrosion.

    4. Slide the rubber boot over the positive terminal.

    5. Close the battery cover.

    Locating the Fuses

    The traction-unit fuses are located under the power-center cover (Figure 97, Figure 98, and Figure 99).

    Remove the 2 screws securing the power-center cover to the frame and remove the cover (Figure 97).

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    The cab fuses are located in the fuse box in the cab headliner (Figure 100 and Figure 101).

    Note: Cab model only

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    decal132-3600

    Drive System Maintenance

    Adjusting the Traction-Pedal Angle

    1. Loosen the 2 nuts and bolts securing the left side of the traction pedal to the bracket (Figure 102).

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    2. Pivot the pedal to the desired operating angle and tighten the nuts (Figure 102)˙.

    Checking the Planetary-Gear-Drive Oil

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Check for end-play in the planetary drives.
  • Use high quality SAE 85W-140 gear lube as a replacement.

    1. With machine on level surface, position the wheel so 1 check plug is at the 12 o'clock position and the other is at 3 o'clock position (Figure 103).

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    2. Remove the plug at the 3 o’clock position (Figure 103).

      Note: The oil level should be at the bottom of the check-plug hole.

    3. If the oil level is low, remove the plug at the 12 o’clock position and add oil until it begins to flow out of the hole at the 3 o’clock position.

    4. Install both plugs.

    Changing the Planetary-Gear-Drive Oil

    Maintenance Service IntervalMaintenance Procedure
    After the first 50 hours
  • Change the front planetary-gear oil.
  • Every 800 hours
  • Change the front planetary-gear oilor yearly, whichever comes first.
  • Use a high-quality, SAE 85W-140 gear lube.

    1. With the machine on a level surface, position a wheel so a check plug is at the lowest (6 o'clock) position (Figure 104).

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    2. Place a drain pan under the planetary hub, remove the plug, and allow the oil to drain.

    3. Place a drain pan under the brake housing, remove the drain plug, and allow the oil to drain (Figure 105).

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    4. When all of the oil has drained from both locations, install the plug in the brake housing.

    5. Rotate the wheel until the open plug hole in the planetary is at the 12 o'clock position.

    6. Through the open hole, slowly fill the planetary with 0.65 L (22 fl oz) of high quality SAE 85W-140 gear lube.

      Important: If the planetary fills before the 0.65 L (22 fl oz) of oil is added, wait 1 hour or install the plug and move the machine approximately 3 m (10 ft) to distribute the oil through the brake system. Then, remove the plug and add the remaining oil.

    7. Install the plug.

    8. Repeat the procedure on the opposite planetary/brake assembly.

    Checking the Rear-Axle Lubricant

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Check the rear-axle lubricant.
  • The rear axle is filled with SAE 85W-140 gear lube. Check the lubricant level before you first start the engine and as recommended. The capacity is 2.4 L (80 fl oz). Visually inspect for leaks daily.

    1. Position the machine on a level surface.

    2. Remove a check plug from the end of the axle and ensure that the lubricant is up to the bottom of the hole (Figure 106).

      Note: If the level is low, remove the fill plug and add enough lubricant to bring the level up to the bottom of the check-plug holes.

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    Checking the Rear-Axle-Gearbox Lubricant

    Maintenance Service IntervalMaintenance Procedure
    Every 400 hours
  • Check the rear-axle-gearbox lubricant.
  • The gearbox is filled with SAE 85W-140 gear lube. The capacity is 0.5 L (16 fl oz). Visually inspect for leaks daily.

    1. Position the machine on a level surface.

    2. Remove the check/fill plug from the left side of the gearbox and ensure that lubricant is up to the bottom of the hole (Figure 107).

      Note: If the level is low, add enough lubricant to bring the level up to the bottom of the hole.

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    Changing the Rear-Axle Lubricant

    Maintenance Service IntervalMaintenance Procedure
    After the first 200 hours
  • Change the rear-axle lubricant.
  • Every 800 hours
  • Change the rear-axle lubricant.
    1. Position the machine on a level surface.

    2. Clean the area around the 3 drain plugs; 1 on each end and 1 in the center (Figure 108).

    3. Remove the check plugs to ease in the draining of the oil.

    4. Remove the drain plugs and allow the oil to drain into the pans.

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    5. Clean the area around the drain plug at the bottom of the gearbox (Figure 109).

    6. Remove the drain plug from the gearbox and allow the oil to drain into a pan.

      Note: Remove the fill plug to ease in the draining of the oil.

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    7. Add enough oil to bring the level up to the bottom of the check plug holes; refer to Changing the Rear-Axle Lubricant, and Checking the Rear-Axle Lubricant.

    8. Install the plugs.

    Checking the Rear Wheel Toe-In

    Maintenance Service IntervalMaintenance Procedure
    Every 800 hours
  • Check the rear wheel toe-in.
    1. Measure the center-to-center distance (at axle height) at the front and rear of the steering tires.

      Note: The front measurement must be 6 mm (1/4 inch) less than the rear measurement.

    2. To adjust, loosen the clamps at both ends of the tie rods.

    3. Rotate the tie-rod end to move the front of the tire inward or outward.

    4. Tighten the tie-rod clamps when the adjustment is correct.

    Changing the Front Tires

    1. Lower the wing cutting units to the ground.

    2. Raise the front of the machine several inches off the ground and support it with jackstands.

    3. Refer to Pivoting (Tilting) the Center Cutting Unit to the Upright Position.

    4. Pivot the mower deck forward so you can remove the tire.

    Cooling System Maintenance

    Cooling System Safety

    • Swallowing engine coolant can cause poisoning; keep out of reach from children and pets.

    • Discharge of hot, pressurized coolant or touching a hot radiator and surrounding parts can cause severe burns.

      • Always allow the engine to cool at least 15 minutes before removing the radiator cap.

      • Use a rag when opening the radiator cap, and open the cap slowly to allow steam to escape.

    • Do not operate the machine without the covers in place.

    • Keep your fingers, hands and clothing clear of rotating fan and drive belt.

    Checking the Cooling System

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the coolant level.
  • Check the coolant level at the beginning of each day. The capacity of the system is 8.5 L (9 US qt).

    Danger

    The rotating fans and drive belts can cause personal injury.

    • Do not operate the machine without the guards in place.

    • Keep your fingers, hands, and clothing clear of the rotating fan and drive belt.

    • Shut off the engine and remove the key before performing maintenance.

    1. Carefully remove the radiator cap and expansion-tank cap (Figure 110).

    2. Check the coolant level in the radiator.

      Note: The radiator should be filled to the top of the filler neck and the expansion tank filled to the Full mark.

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    3. If the coolant is low, add a 50/50 mixture of water and ethylene glycol anti-freeze.

      Important: Do not use water only or alcohol/methanol based coolants, as this may cause damage.

    4. Install the radiator cap and expansion-tank cap.

    Servicing the Engine-Cooling System

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Inspect the cooling-system hoses and clamps.
  • Every 2 years
  • Flush the cooling system and replace the fluid.
  • Remove debris from the oil radiator/oil cooler daily. Clean them more frequently in dirty conditions.

    This machine is equipped with a hydraulically-driven fan drive system that automatically (or manually) reverses to reduce the radiator/oil cooler and screen debris buildup. While this feature can help reduce the time required to clean radiator/oil cooler, it does not eliminate the need for routine cleaning. Periodic cleaning and inspection of the radiator/oil cooler is still required.

    1. Shut off the engine, remove the key, and raise the hood.

    2. Clean the engine area thoroughly of all debris.

    3. Clean both sides of the radiator/oil cooler area thoroughly with compressed air (Figure 111).

      Note: Start from the fan side and blow the debris out toward the back. Then, clean from the back side and blow toward the front. Repeat this procedure several times until all chaff and debris is removed.

      Important: Cleaning the radiator/oil cooler with water can promote premature corrosion and damage to components.

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    4. Close the hood.

    Brake Maintenance

    Adjusting the Service Brakes

    Adjust the service brakes when there is more than 25 mm (1 inch) of free travel of the brake pedal, or when the brakes do not work effectively. Free travel is the distance the brake pedal moves before you feel braking resistance.

    1. Release the locking latch from the brake pedals so that both pedals work independently of each other.

    2. To reduce free travel of the brake pedals, tighten the brakes as follows:

      1. Loosen the front nut on the threaded end of the brake cable (Figure 112).

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      2. Tighten the rear nut to move the cable rearward until the brake pedals have 13 to 25 mm (1/2 to 1 inch) of free travel.

      3. Tighten the front nuts after the brakes are adjusted correctly.

    Belt Maintenance

    Servicing the Alternator Belt

    Maintenance Service IntervalMaintenance Procedure
    After the first 10 hours
  • Check the alternator-belt tension.
  • Every 100 hours
  • Check the alternator-belt tension.
  • Proper tension of the belt allows 10 mm (3/8 inch) of deflection when a force of 44 N∙m (10 ft-lb) is applied on the belt midway between the pulleys.

    If the deflection is not 10 mm (3/8 inch), loosen the alternator-mounting bolts (Figure 113).

    Note: Increase or decrease the alternator-belt tension and tighten the bolts. Check the deflection of the belt again to ensure that the tension is correct.

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    Servicing the Air Conditioner Compressor Belt

    Maintenance Service IntervalMaintenance Procedure
    After the first 10 hours
  • Check the compressor belt tension.
  • Every 100 hours
  • Check the compressor belt tension.
  • Cab model only

    Check the condition and tension of the belt (Figure 113) after every 100 operating hours.

    1. Proper tension allows 10 mm (3/8 inch) deflection when a force of 44 N (10 lb) is applied on the belt midway between the pulleys.

    2. If the deflection is not 10 mm (3/8 inch), loosen the idler pulley mounting bolt (Figure 113). Increase or decrease the compressor belt tension and tighten the bolt. Check the deflection of the belt again to ensure that the tension is correct.

    Tensioning the Blade-Drive Belts

    Maintenance Service IntervalMaintenance Procedure
    After the first 10 hours
  • Check the blade-drive-belt tension.
  • Every 50 hours
  • Check the blade-drive-belt tension.
  • When properly tensioned, the inside measurement of the extension spring (hook to hook) should be approximately 8.3 to 9.5 cm (3-1/4 to 3-3/4 inches). Once the correct spring tension is attained, adjust the stop bolt (carriage bolt) until there is approximately 2 to 5 mm (0.065 to 0.185 inch) clearance between the head of the bolt and the idler arm (Figure 114).

    Note: Ensure that the belt is positioned on the spring side of the belt guide (Figure 114).

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    Replacing the Blade-Drive Belt

    Maintenance Service IntervalMaintenance Procedure
    Every 800 hours
  • Inspect the blade-drive belt.
  • The blade-drive belt, tensioned by the spring-loaded idler pulley, is very durable. However, after many hours of use, the belt will show signs of wear. Signs of a worn belt include squealing when the belt is rotating, blades slipping when cutting grass, frayed edges, burn marks, and cracks. Replace the belt if any of these conditions are evident.

    1. Lower the mower deck to the shop floor, remove the belt covers from the top of the mower deck, and set the covers aside.

    2. Loosen the eye bolt (Figure 114).

    3. Loosen the flange nut securing the stop bolt to the mounting tab and move the idler pulley away from the belt (Figure 114).

      Note: Loosen the nut enough to allow the idler arm to pass the stop bolt.

      Note: If you must remove the stop bolt from the mounting tab, install it in the hole that aligns the stop-bolt head with the idler arm.

    4. Remove the bolts securing the hydraulic motor to the mower deck (Figure 115).

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    5. Lift the motor off the mower deck and lay it on top of the mower deck.

    6. Remove the old belt from around the spindle pulleys and idler pulley.

    7. Route the new belt around the spindle pulleys and idler-pulley assembly.

    8. Position the hydraulic motor on the mower deck after routing the belt around the pulleys. Mount the motor to the mower deck with the bolts previously removed.

      Note: Ensure that the belt is positioned on the spring side of the belt guide (Figure 114).

    9. Connect the extension spring (Figure 114) to the eye bolt and tension the belt as follows:

      • When properly tensioned, the inside measurement of the extension spring (hook to hook) should be approximately 8.3 to 9.5 cm (3-1/4 to 3-3/4 inch).

      • When you attain the correct spring tension, adjust the stop bolt (carriage bolt) until there is approximately 2 to 5 mm (0.065 to 0.185 inches) clearance between the head of the bolt and the idler arm.

    Hydraulic System Maintenance

    Hydraulic System Safety

    • Seek immediate medical attention if fluid is injected into skin. Injected fluid must be surgically removed within a few hours by a doctor.

    • Ensure that all hydraulic-fluid hoses and lines are in good condition and all hydraulic connections and fittings are tight before applying pressure to the hydraulic system.

    • Keep your body and hands away from pinhole leaks or nozzles that eject high-pressure hydraulic fluid.

    • Use cardboard or paper to find hydraulic leaks.

    • Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system.

    Servicing the Hydraulic System

    Hydraulic Fluid Specifications

    The reservoir is filled at the factory with high-quality hydraulic fluid. Check the level of the hydraulic fluid before you first start the engine and daily thereafter; refer to Changing the Hydraulic Fluid.

    Recommended hydraulic fluid: Toro PX Extended Life Hydraulic Fluid; available in 19 L (5 US gallon) pails or 208 L (55 US gallon) drums.

    Note: A machine using the recommended replacement fluid requires less frequent fluid and filter changes.

    Alternative hydraulic fluids: If Toro PX Extended Life Hydraulic Fluid is not available, you may use another conventional, petroleum-based hydraulic fluid having specifications that fall within the listed range for all the following material properties and that it meets industry standards. Do not use synthetic fluid. Consult with your lubricant distributor to identify a satisfactory product.

    Note: Toro does not assume responsibility for damage caused by improper substitutions, so use products only from reputable manufacturers who will stand behind their recommendation.

    High Viscosity Index/Low Pour Point Anti-wear Hydraulic Fluid, ISO VG 46

    Material Properties: 
     Viscosity, ASTM D445cSt @ 40°C (104°F) 44 to 48
     Viscosity Index ASTM D2270140 or higher
     Pour Point, ASTM D97-37°C to -45°C (-34°F to -49°F)
     Industry Specifications:Eaton Vickers 694 (I-286-S, M-2950-S/35VQ25 or M-2952-S)

    Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic fluid is available in 20 ml (0.67 fl oz) bottles. A bottle is sufficient for 15 to 22 L (4 to 6 US gallons) of hydraulic fluid. Order Part No. 44-2500 from your authorized Toro distributor.

    Important: Toro Premium Synthetic Biodegradable Hydraulic Fluid is the only synthetic biodegradable fluid approved by Toro. This fluid is compatible with the elastomers used in Toro hydraulic systems and is suitable for a wide-range of temperature conditions. This fluid is compatible with conventional mineral oils, but for maximum biodegradability and performance, the hydraulic system should be thoroughly flushed of conventional fluid. The oil is available in 19 L (5 US gallon) pails or 208 L (55 US gallon) drums from your authorized Toro distributor.

    Hydraulic Fluid Capacity

    The capacity is 29 L (7.75 US gallons).

    Checking the Hydraulic Fluid

    Maintenance Service IntervalMaintenance Procedure
    Before each use or daily
  • Check the hydraulic-fluid level.
    1. Position the machine on a level surface, lower the cutting units, shut off the engine, and remove the key from the ignition.

    2. Check the hydraulic-fluid level (Figure 116).

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    Changing the Hydraulic Fluid

    Maintenance Service IntervalMaintenance Procedure
    Every 800 hours
  • If you are not using the recommended hydraulic fluid or have ever filled the reservoir with an alternative fluid, change the hydraulic fluid.
  • Every 2,000 hours
  • If you are using the recommended hydraulic fluid, change the hydraulic fluid.
  • Every 2 years
  • Drain and flush the hydraulic tank.
  • If the hydraulic fluid becomes contaminated, the hydraulic system must be flushed. Contaminated fluid looks milky or black when compared to clean oil. Contact your authorized Toro distributor for assistance.

    1. Park the machine on a level surface, lower the cutting units, shut off the engine, and remove the key.

    2. Remove the drain plug from the bottom, front of the reservoir and let the hydraulic fluid flow into a large drain pan.

    3. Install and tighten the plug when the hydraulic fluid stops draining.

    4. Fill the reservoir (Figure 117) with hydraulic fluid; refer to Servicing the Hydraulic System.

      Important: Use only the hydraulic fluids specified. Other fluids damage the system.

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    5. Install the reservoir cap, start the engine, and use all the hydraulic controls to distribute hydraulic fluid throughout the system.

      Note: Also check for leaks; then shut off the engine.

    6. Check the fluid level and add enough to raise level the level to the Full mark on the dipstick.

      Note: Do not overfill.

    Replacing the Hydraulic Filters

    Maintenance Service IntervalMaintenance Procedure
    Every 800 hours
  • If you are not using the recommended hydraulic fluid or have ever filled the reservoir with an alternative fluid, replace the hydraulic filter (sooner if the service interval indicator is in the red zone).
  • Every 1,000 hours
  • If you are using the recommended hydraulic fluid, replace the hydraulic filter (sooner if the service interval indicator is in the red zone).
  • Use the following Toro replacement filters:

    • Part No. 94-2621 for the rear (cutting unit) of the machine

    • Part No. 75-1310 for the front (charge) of the machine

    Important: Use of any other filter may void the warranty on some components.

    1. Position the machine on a level surface, lower the cutting units, engage the parking brakes, shut off the engine, and remove the key from the ignition.

    2. Replace the hydraulic filters (Figure 118).

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    3. Start the engine and let it run for about 2 minutes to purge air from the system and shut off the engine and check for leaks.

    Checking the Hydraulic Lines and Hoses

    Maintenance Service IntervalMaintenance Procedure
    Every 2 years
  • Replace moving hoses.
  • Warning

    Hydraulic fluid escaping under pressure can penetrate skin and cause injury.

    • Seek immediate medical help if fluid is injected into skin.

    • Make sure that all hydraulic-fluid hoses and lines are in good condition and all hydraulic connections and fittings are tight before applying pressure to the hydraulic system.

    • Keep your body and hands away from pinhole leaks or nozzles that eject high-pressure hydraulic fluid.

    • Use cardboard or paper to find hydraulic leaks.

    • Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system.

    Inspect the hydraulic lines and hoses daily for leaks, kinked lines, loose mounting supports, wear, loose fittings, weather deterioration, and chemical deterioration. Make all necessary repairs before operating the machine.

    Adjusting the Counterbalance Pressure

    The counterbalance test port is used to test the pressure in the counterbalance circuit (Figure 119). The recommended counterbalance pressure is 2241 kPa (325 psi). To adjust the counterbalance pressure, loosen the locknut, rotate the adjusting screw (Figure 119) clockwise to increase the pressure or counterclockwise to decrease the pressure, and tighten the locknut. The engine must be running and the deck lowered and in the float position to check the pressure.

    Note: The caster wheels of all 3 cutting units should remain on the ground when adjusting the counterbalance and with counterbalance applied.

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    Cutting Unit Maintenance

    Pivoting (Tilting) the Center Cutting Unit to the Upright Position

    Note: Although not needed, you can pivot (tilt) the center cutting unit.

    1. Raise the center cutting unit slightly off the floor, set the parking brake, and shut off the engine, and remove the key.

    2. Remove the hairpin cotter securing the dampers to lift arms (Figure 120).

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    3. Pivot the damper toward the deck housing.

    4. Remove the hairpin cotter and clevis pin securing the height-of-cut chains to the rear of the cutting unit (Figure 121).

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    5. Start the engine and slowly raise the center cutting unit.

    6. Slowly raise each side cutting until the center of gravity shifts and the deck starts to rotate into the upright position.

    7. Shut off the engine and remove the ignition key.

    Pivoting the Center Cutting Unit Down

    1. Slowly lower the wing cutting units until the center of gravity shifts and the center cutting unit rotates downward.

    2. Sit on the seat, start the engine, and lower the center cutting unit until it is slightly off the floor.

    3. Shut off the engine, wait for all parts to stop moving, and remove the key.

    4. Secure the height-of-cut chains to the rear of the cutting unit.

    5. Pivot the dampers upward into position and secure with a clevis pin and cotter pin.

    Adjusting the Cutting-Unit Pitch

    Measuring the Cutting-Unit Pitch

    Mower-deck pitch is the difference in height-of-cut from the front of the blade plane to the back of the blade plane. Use a blade pitch of 8 to 11 mm (5/16 to 7/16 inch). That is the back of the blade plane is 8 to 11 mm (5/16 to 7/16 inch) higher than the front.

    1. Position the machine on a level surface on the shop floor.

    2. Set the cutting unit to the desired height of cut.

    3. Rotate a blade to point straight forward.

    4. Using a short ruler, measure from the floor to the front tip of the blade.

    5. Rotate the blade tip to the rear and measure from the floor to the tip of the blade.

    6. Subtract the front dimension from the rear dimension to calculate the blade pitch.

    Adjusting the Center Cutting-Unit Pitch

    1. Loosen the jam nuts on the top or bottom of the height-of-cut-chain U-bolt (Figure 122).

    2. Adjust the other set of nuts to raise or lower the rear of the mower deck and attain the correct mower-deck pitch.

    3. Tighten the jam nuts.

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    Adjusting the Wing Cutting Units

    1. Remove the cap screws and nuts securing the caster arm to the caster fork (Figure 123).

    2. Position the shims, as required, to raise or lower the caster wheel until the cutting unit has the correct pitch.

    3. Install the cap screws and nuts.

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    Servicing the Caster-Arm Bushings

    Removing the Bushings

    The caster arms have bushings pressed into the top and bottom of the tube and after many hours of operation, the bushings develop wear. To check the bushings, move the caster fork back and forth and from side to side. If the caster spindle is loose inside the bushings, replace the bushings.

    1. Raise the cutting unit so that the wheels are off the floor and block the cutting unit so it cannot fall.

    2. Remove the tensioning cap, spacer(s), and thrust washer from the top of the caster spindle.

    3. Pull the caster spindle out of the mounting tube.

      Note: Keep the thrust washer and spacer(s) on the bottom of the spindle.

    4. Insert a pin punch into the top or bottom of the mounting tube and drive the bushing out of the tube (Figure 124).

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    5. Drive the other bushing out of the tube.

    6. Clean the inside of the tubes to remove dirt.

    Installing the Bushings

    1. Apply grease to the inside and outside of the new bushings.

    2. Using a hammer and flat plate, drive the bushings into the mounting tube.

    3. Inspect the caster spindle for wear and replace it if it is damaged.

    4. Push the caster spindle through the bushings and mounting tube.

    5. Slide the thrust washer and spacer(s) onto the spindle and install the tensioning cap on the caster spindle to retain all parts in place.

    Servicing the Caster Wheels and Bearings

    Maintenance Service IntervalMaintenance Procedure
    Every 800 hours
  • Inspect the cutting unit caster-wheel assemblies.
    1. Remove the locknut from the bolt holding the caster-wheel assembly between the caster fork (Figure 125) or the caster-pivot arm (Figure 126).

      Note: Grasp the caster wheel and slide the bolt out of the fork or pivot arm.

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    2. Remove the bearing from the wheel hub and allow the bearing spacer to fall out (Figure 125 and Figure 126).

    3. Remove the bearing from the opposite side of the wheel hub.

    4. Check the bearings, spacer, and inside of the wheel hub for wear and replace any damaged parts.

    5. To assemble the caster wheel, push the bearing into the wheel hub.

      Note: When installing the bearings, press on the outer face of the bearing.

    6. Slide the bearing spacer into the wheel hub and push the other bearing into the open end of the wheel hub to captivate the bearing spacer inside the wheel hub.

    7. Install the caster-wheel assembly between the caster fork and secure it in place with the bolt and locknut.

    Replacing the Cutting Unit Hinge Covers

    The hinge cover prevents debris from escaping at hinge points between cutting units. If the cover(s) become damaged or worn, replace them.

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    Blade Maintenance

    Blade Safety

    • Inspect the blade periodically for wear or damage.

    • Use care when checking the blades. Wrap the blades or wear gloves, and use caution when servicing the blades. Only replace or sharpen the blades; never straighten or weld them.

    • On multi-bladed machines, take care as rotating 1 blade can cause other blades to rotate.

    Checking for a Bent Blade

    After striking a foreign object, inspect the machine for damage and make repairs before starting and operating the equipment. Torque all of the spindle-pulley nuts to 176 to 203 N∙m (130 to 150 ft-lb).

    1. Position the machine on a level surface, raise the cutting unit, engage the parking brake, put the traction pedal in NEUTRAL, put the PTO lever in the OFF position, shut off the engine, and remove the ignition key.

      Note: Block the cutting unit to prevent it from accidentally falling.

    2. Rotate the blade until the ends face forward and backward and measure from the inside of the cutting unit to the cutting edge at the front of the blade (Figure 128).

      Note: Remember this dimension.

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    3. Rotate the opposite end of the blade forward and measure between the cutting unit and cutting edge of the blade at the same position as in step 2.

      Note: The difference between the dimensions obtained in steps 2 and 3 must not exceed 3 mm (1/8 inch). If the dimension exceeds 3 mm (1/8 inch), the blade is bent and must be replaced; refer to Removing and Installing the Cutting-Unit Blade(s).

    Removing and Installing the Cutting-Unit Blade(s)

    Replace the blade if it hits a solid object, is out of balance, or is bent. Always use genuine Toro replacement blades to ensure safety and optimum performance.

    1. Park the machine on a level surface, raise the cutting unit to the transport position, engage the parking brake, shut off the engine, and remove the key.

      Note: Block or lock the cutting unit to prevent it from accidentally falling.

    2. Grasp the end of the blade using a rag or thickly-padded glove.

    3. Remove the blade bolt, anti-scalp cup, and blade from the spindle shaft (Figure 129).

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    4. Install the blade, anti-scalp cup, and blade bolt and tighten the blade bolt to 115 to 149 N∙m (85 to 110 ft-lb).

      Important: The curved part of the blade must be pointing toward the inside of the cutting unit to ensure proper cutting.

      Note: After striking a foreign object, torque all spindle-pulley nuts to 115 to 149 N∙m (85 to 110 ft-lb).

    Inspecting and Sharpening the Cutting Unit Blade(s)

    Both cutting edges and the sail, which is the turned-up portion opposite of the cutting edge, contribute to a good quality of cut.

    Maintain sharp blades throughout the cutting season. Sharp blades create a clean cut without tearing or shredding the grass blades.

    Check the blades for any wear or damage. The sail lifts the grass up straight, thereby producing an even cut and gradually wears down during operation.

    1. Park the machine on a level surface, raise the cutting unit, engage the parking brake, put the traction pedal in NEUTRAL, put the PTO lever in the OFF position, shut off the engine, and remove the key from the ignition.

    2. Examine the cutting ends of the blade carefully, especially where the flat and curved parts of the blade meet (Figure 130).

      Note: Because sand and abrasive material can wear away the metal that connects the flat and curved parts of the blade, check the blade before using the mower. If you notice wear (Figure 130), replace the blade.

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    3. Examine the cutting edges of all of the blades and sharpen the cutting edges if they are dull or nicked (Figure 131).

      Note: Sharpen only the top of the cutting edge and maintain the original cutting angle to ensure sharpness (Figure 131). The blade remains balanced if the same amount of metal is removed from both cutting edges.

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      Note: Remove the blades and sharpen them on a grinder. After sharpening the cutting edges, install the blade with the anti-scalp cup and blade bolt; refer to Removing and Installing the Cutting-Unit Blade(s).

    Correcting a Cutting Unit Mismatch

    When there is mismatch between the blades on a single cutting unit, the grass appears streaked when it is cut. You can correct this problem by ensuring that the blades are straight.

    1. Park the machine on a level surface.

    2. Raise the height of cut to the highest position; refer to Adjusting the Height of Cut.

    3. Lower the cutting unit onto the flat surface and remove the covers from the top of the cutting unit.

    4. Loosen the flange nut that secures the idler pulley to release the belt tension.

    5. Rotate the blades until the ends face forward and rearward and measure from the floor to the front tip of the cutting edge. Remember this dimension.

    6. Rotate the same blade so that the opposite end is forward, and measure again. The difference between the dimensions must not exceed 3 mm (1/8 inch). If the dimension exceeds 3 mm (1/8 inch), replace the blade, as it is bent. Measure all the blades.

    7. Compare the measurements of the outer blades with the center blade.

      Note: The center blade must not be more than 10 mm (3/8 inch) lower than the outer blades. If the center blade is more than 10 mm (3/8 inch) lower than the outer blades, proceed to step 8 and add shims between the spindle housing and the bottom of the cutting unit.

    8. Remove the bolts, flat washers, lock washers, and nuts from the outer spindle in the area where you must add the shims.

      Note: To raise or lower the blade, add a shim (Part No. 3256-24) between the spindle housing and the bottom of the cutting unit. Continue to check the alignment of the blades and add shims until the tips of the blades are within the required dimension.

      Important: Do not use more than 3 shims at any 1 hole location. Use decreasing numbers of shims in adjacent holes if more than 1 shim is added to any 1 hole location.

    9. Adjust the idler pulley and install the belt covers.

    Cab Maintenance

    Cleaning the Cab

    Important: Use care around the cab seals and lights (Figure 132). If you are using a pressure washer, keep the washer wand at least 0.6 m (2 ft) away from the machine. Do not use the pressure washer directly on the cab seals and lights or under the rear overhang.

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    Cleaning the Cab Air Filters

    Maintenance Service IntervalMaintenance Procedure
    Every 250 hours
  • Clean the cab air filters; replace them if they are torn or excessively dirty.
    1. Remove the screws and grates from both the in-cab and rear cab air filters (Figure 133 and Figure 134).

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    2. Clean the filters by blowing clean, oil-free, compressed air through them.

      Important: If either filter has a hole, tear, or other damage, replace the filter.

    3. Install the filters and the grate with the thumbscrews.

    Cleaning the Cab Pre-Filter

    The purpose of the cab pre-filter is to prevent large debris, such as grass and leaves, from entering the cab filters.

    1. Rotate the screen cover down.

    2. Clean the filter with water.

      Note: Do not use a pressure washer.

      Important: If the filter has a hole, tear, or other damage, replace the filter.

    3. Allow the pre-filter to dry before installing it into the machine.

    4. Rotate the filter screen around the tabs until the latch locks into the latch-mount assembly (Figure 135).

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    Cleaning the Air-Conditioning Coil

    Maintenance Service IntervalMaintenance Procedure
    Every 250 hours
  • Clean the air-conditioning coil.(Clean more frequently in extremely dusty or dirty conditions)
    1. Shut off the engine and remove the key.

    2. Remove the 6 nuts and washers from the bottom of the rear of the cab (Figure 136).

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    3. Remove the cabin roof of the cab by removing the 22 bolts that secure the roof (Figure 137).

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    4. Remove the air filters (Figure 137).

    5. Remove and clean the air-conditioning coils (Figure 137).

    6. Replace the air-conditioning coils, air filters and cabin roof.

    Storage

    Storage Safety

    • Shut off the engine, remove the key, and wait for all movement to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it.

    • Do not store the machine or fuel container where there is an open flame, spark, or pilot light, such as on a water heater or other appliance.

    Preparing the Machine for Storage

    Important: Do not use brackish or reclaimed water to clean the machine.

    Preparing the Traction Unit

    1. Thoroughly clean the traction unit, cutting units, and engine.

    2. Check the tire pressure. Inflate all traction unit tires to 83 to 103 kPa (12 to 15 psi).

    3. Check all fasteners for looseness and tighten them as necessary.

    4. Grease all grease fittings and pivot points. Wipe up any excess lubricant.

    5. Lightly sand and use touch-up paint on painted areas that are scratched, chipped, or rusted. Repair any dents in the metal body.

    6. Service the battery and cables as follows:

      1. Remove the battery terminals from the battery posts.

        Note: Always disconnect the negative terminal first and the positive last. Always connect the positive terminal first and the negative last.

      2. Clean the battery, terminals, and posts with a wire brush and baking soda solution.

      3. Coat the cable terminals and battery posts with Grafo 112X skin-over grease (Part Number 505-47) or petroleum jelly to prevent corrosion.

      4. Slowly recharge the battery every 60 days for 24 hours to prevent lead sulfation of the battery.

    Preparing the Engine

    1. Drain the engine oil from the oil pan and replace the drain plug.

    2. Remove and discard the oil filter. Install a new oil filter.

    3. Refill the oil pan with designated quantity of motor oil.

    4. Turn the key in the switch to the ON position, start the engine, and run it at idle speed for approximately 2 minutes.

    5. Turn the key in the switch to the OFF position.

    6. Thoroughly drain all fuel from the fuel tank, lines, and the fuel filter/water separator assembly.

    7. Flush the fuel tank with fresh, clean diesel fuel.

    8. Secure all fuel-system fittings.

    9. Thoroughly clean and service the air-cleaner assembly.

    10. Seal the air-cleaner inlet and the exhaust outlet with weatherproof tape.

    11. Check the antifreeze protection and add as needed for expected minimum temperature in your area.