Introduction

This machine is a ride-on, rotary-blade lawnmower intended to be used by professional, hired operators in commercial applications. It is primarily designed for cutting grass on well-maintained lawns in parks, sports fields, and on commercial grounds. It is not designed for cutting brush, mowing grass and other growth alongside highways, or for agricultural uses.

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.

You may contact Toro directly at www.Toro.com for product and 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.

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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.

Warning

CALIFORNIA

Proposition 65 Warning

This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.

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

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.

This spark ignition system complies with Canadian ICES-002.

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Safety

This machine has been designed in accordance with EN ISO 5395:2013 and ANSI B71.4-2012.

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.

Using this product for purposes other than its intended use could prove dangerous to you and bystanders.

  • Read and understand the contents of this Operator’s Manual before you start the engine. Ensure that everyone using this product knows how to use it and understands the warnings.

  • Do not put your hands or feet near moving components of the machine.

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

  • Keep clear of any discharge opening. Keep bystanders a safe distance from the machine.

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

  • Stop the machine and shut off the engine before servicing, fueling, or unclogging the machine.

Improperly using or maintaining the 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, which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with these instructions may result in personal injury or death.

You can find additional items of safety information in their respective sections throughout this manual.

Sound Power Level

This unit has a guaranteed sound power level of 105 dBA, which includes an Uncertainty Value (K) of 1 dBA.

Sound power level was determined according to the procedures outlined in ISO 11094.

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Sound Pressure Level

This unit has a sound pressure level at the operator’s ear of 87 dBA, which includes an Uncertainty Value (K) of 1 dBA.

Sound pressure level was determined according to the procedures outlined in EN ISO 5395:2013.

Caution

Long-term exposure to noise while operating the machine may cause some hearing loss.

Wear adequate hearing protection whenever you operate the machine for an extended period of time.

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Vibration Level

Hand-Arm

Measured vibration level for right hand = 0.58 m/s2

Measured vibration level for left hand = 0.63 m/s2

Uncertainty Value (K) = 0.32 m/s2

Measured values were determined according to the procedures outlined in EN ISO 5395:2013.

Whole Body

Measured vibration level = 0.26 m/s2

Uncertainty Value (K) = 0.13 m/s2

Measured values were determined according to the procedures outlined in EN ISO 5395:2013.

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Engine-Emission Certification

The engine in this machine is EPA Tier 4 Final and EU Stage 3b emissions compliant.

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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 lost.

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Setup

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

Greasing the Machine

Before the machine is operated, it must be greased to ensure proper lubricating characteristics; refer to Greasing the Bearings and Bushings. Failure to properly grease the machine will result in premature failure of critical parts.

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Replacing the Warning Decal

For CE Models Only

Parts needed for this procedure:

Warning decal1

On machines requiring European CE compliance, replace the warning decal, Part No. 117-2754 with the warning decal Part No. 117-2766.

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Product Overview

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

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Traction Pedal

To stop, reduce your foot pressure on the traction pedal and allow it to return to the center position (Figure 3).

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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 3).

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Pedal-Locking Latch

The pedal-locking latch connects the pedals together to engage the parking brake (Figure 3).

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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 3).

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Parking-Brake Latch

A knob on the left side of the console actuates the parking-brake lock (Figure 3).

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.

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Hazard-Light Switch

Press the hazard-light switch to activate the hazard lights (Figure 3).

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Turn-Signal Switch

Press the left side of the turn-signal switch to activate the left-turn signal and the right side of the switch to activate the right-turn signal (Figure 3).

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Key Switch

The key switch (Figure 4) has 3 positions: OFF, ON/PREHEAT, and START.

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Engine-Speed Switch

The engine-speed switch has 2 modes to change the engine speed (Figure 4).

By momentarily tapping the switch, the engine speed can be increased or decreased in 100-rpm increments. By holding the switch down the engine will automatically move to HIGH or LOW IDLE, depending on which switch is depressed.

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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 4).

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Hi—Lo Speed-Control Switch

The Hi—Lo speed-control switch allows the speed range to increase for transport of the machine (Figure 4).

Mower decks will not operate in high range. To switch between the HIGH and LOW range, the decks must be raised, PTO disengaged, cruise control disengaged, traction pedal in the NEUTRAL position and the machine must be moving at a slow speed.

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Lift Switches

The lift switches raise and lower the mower decks (Figure 4). Press the switches forward to lower the mower decks and rearward to raise the mower decks. When starting the machine, with the mower decks in the down position, press the lift switch down to allow the mower decks to float and mow.

Note: The decks will not lower while in the Hi-speed range and they will not raise or lower if the operator is out of the seat when the engine is running. Also, the decks will lower with the key in the ON position and the operator in the seat.

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Cruise-Control Switch

The cruise-control switch locks in the pedal position to maintain the desired ground speed (Figure 5). 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, will also disengage the pedal position.

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Power-Point Switch

The power-point switch is used to power optional electrical accessories (Figure 5).

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Seat Adjustments

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 6).

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Armrest-Adjustment Knob

Rotate the knob to adjust the armrest angle (Figure 6).

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Seat-Back-Adjustment Lever

Move the lever to adjust the seat-back angle (Figure 6).

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Weight Gauge

The weight gauge indicates when the seat is adjusted to the weight of the operator (Figure 6). Adjust the height by positioning the suspension within the range of the green region.

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Weight-Adjustment Lever

Use this lever to adjust to the proper weight of the operator (Figure 6). 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.

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Cab Controls

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Air-Recirculation Control

The air-recirculation control sets the cab to either recirculate the air in the cabin or to draw air into the cabin from outside (Figure 7).

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

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

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Fan Control

Rotate the fan control knob to regulate the speed of the fan (Figure 7).

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Temperature Control

Rotate the temperature control knob to regulate the air temperature in the cab (Figure 7).

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Windshield-Wiper Switch

Use this switch to turn the windshield wipers on or off (Figure 7).

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Air Conditioning Switch

Use this switch to turn the air conditioning on or off (Figure 7).

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Windshield Latch

Lift up the latches to open the windshield (Figure 8). Press in the latch to lock the windshield open. Pull out and down on the latch to close and secure windshield.

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Rear Window Latch

Lift up the latches to open the rear window. Press in the latch to lock the window open. Pull out and down on the latch to close and secure the window (Figure 8).

Important: You must close the rear window before you open the hood; otherwise, damage may occur.

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Using the InfoCenter Control

The InfoCenter LCD display shows information about your machine, such as the operating status, various diagnostics and other information about the machine (Figure 9). There is a splash screen and main information screen of the InfoCenter. You can switch between the splash screen and main information screen at any time by pressing any of the InfoCenter buttons 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 mower decks are being lowered
GraphicIndicates when the mower decks are being raised
GraphicPIN code
GraphicHydraulic-Oil Temperature—indicates the hydraulic-oil 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
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
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Using the Menus

To access the InfoCenter menu system, press the menu access button while at the main screen. This will bring 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 will be 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
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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.

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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 10).

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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 11A).

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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 11B and Figure 11C). 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 11D).

    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 have the ability to 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.

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Setting the Auto Idle

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

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

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Setting the Maximum Allowed Mow Speed

  • In the Settings Menu, Scroll down to Mow Speed and press the right button.

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

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

  • Press the left button to exit.

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Setting the Maximum Allowed Transport Speed

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

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

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

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

Width of cut 
 Overall335 cm (132 inches)
 Front mower deck157 cm (62 inches)
 Side mower deck107 cm (42 inches)
 Front and one-side mower deck246 cm (97 inches)
Overall width 
 Mower decks down345 cm (136 inches)
 Mower decks up (transport position)183 cm (72 inches)
Overall length342 cm (135 inches)
Height140 cm (55 inches)
Height with cab237 cm (93.3 inches)
Ground clearance17 cm (6-1/2 inches)
Wheel tread (to center of tire) 
 Front114 cm (45 inches)
 Rear119 cm (47 inches)
Wheel base141 cm (55-1/2 inches)
(Net weight with cab)2,159 kg (4,759 lb)

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 Distributor or go to www.Toro.com for a list of all approved attachments and accessories.

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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. Know how to stop the machine and engine quickly.

  • Check that all safety devices are attached and functioning properly. This includes, but is not limited to, operator-presence controls; safety switches and shields; the rollover protection system (ROPS); attachments; and brakes. Do not operate the machine unless all safety devices are in position and functioning as intended by the manufacturer.

  • Always inspect the machine to ensure that the blades, blade bolts, and cutting assembly are not worn or damaged. 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 potentially throw.

  • Evaluate the terrain to determine the appropriate equipment and any attachments or accessories required to operate the machine properly and safely.

Fuel Safety

Danger

In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property.

  • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any fuel that spills.

  • Never fill the fuel tank inside an enclosed trailer.

  • Never smoke when handling fuel, and stay away from an open flame or where fuel fumes may be ignited by a spark.

  • Store fuel in an approved container and keep it out of the reach of children. Never buy more than a 180-day supply of fuel.

  • Do not operate the machine without the entire exhaust system in place and in proper working condition.

Warning

Fuel is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness.

  • Avoid prolonged breathing of vapors.

  • Keep your hands and face away from the nozzle and the fuel-tank opening.

  • Keep fuel away from your eyes and skin.

  • Use only an approved fuel container.

  • Never remove the fuel cap or add fuel to the fuel tank while the engine is running.

  • Never fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground and away from your vehicle before filling.

  • Remove the equipment from the truck or trailer and add fuel to it while it is on the ground. If this is not possible, then add fuel using a portable container rather than from a fuel-dispenser nozzle.

  • Keep the fuel-dispenser nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete. Do not use a nozzle lock-open device.

  • If you spill fuel on your clothing, change your clothing immediately.

  • Fill the fuel tank until the fuel level is 25 mm (1 inch) below the bottom of the filler neck. Do not overfill the fuel tank. Replace the fuel-tank cap and tighten it securely.

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.

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Checking the Cooling System

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

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Checking the Hydraulic System

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

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Filling the Fuel Tank

Fuel Tank Capacity

Fuel tank capacity: 79 L (21 US gallons)

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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.

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Biodiesel

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

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 be degraded over time.

  • Fuel filter plugging may be expected for a time after converting to biodiesel blends.

  • Contact your Authorized Toro Distributor if you wish for more information on biodiesel.

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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 Number 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.

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Checking 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

Torque the wheel-lug nuts to 115 to 136 Nm (85 to 100 ft-lb).

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.

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Checking the Planetary-Gear-Drive Oil

Check the oil level after every 400 hours of operation or if external leakage is noted. 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 14).

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  2. Remove the plug at the 3 o’clock position (Figure 14).

    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.

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Checking the Rear-Axle Lubricant

The rear axle is filled with SAE 85W-140 gear lube. Check the oil level before the engine is first started and every 400 hours thereafter. The capacity is 2.4 L (80 oz). Visually inspect for leaks daily.

  1. Position the machine on a level surface.

  2. Remove a check plug from one end of the axle and ensure that the lubricant is up to the bottom of the hole (Figure 15).

    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

The gear box is filled with SAE 85W-140 gear lube. Check the oil level before the engine is first started and every 400 hours thereafter. The capacity is 0.5 L (16 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 gear box and ensure that lubricant is up to the bottom of the hole (Figure 16).

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

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Adjusting the Height of Cut

Front Mower Deck

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 front mower deck, position the caster-wheel axles in the upper or lower holes of the caster forks, add or remove an equal number of spacers from the caster forks, and secure the rear chain to the desired hole.

  1. Start the engine and raise the mower decks to change height of cut.

  2. Stop the engine and remove the key after the mower deck is raised.

  3. 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 operating at heights of cuts lower than 64 mm (2-1/2 inches) and grass buildup is detected, reverse the machines direction to pull any clippings away from the wheel/fork area.

  4. Remove the tensioning cap from the spindle shaft and slide the spindle out of the caster arm (Figure 17).

  5. Install 2 shims (3 mm [1/8 inch]) onto the spindle shaft as they were originally installed.

    Note: These shims require a level across the entire width of the mower decks. 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 18):

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  6. Push the caster spindle through the front caster arm and install the shims (as they were originally installed) and the remaining spacers onto the spindle shaft.

  7. Install the tensioning cap to secure the assembly.

  8. Remove the hairpin cotter and clevis pin securing the height-of-cut chains to the rear of the mower deck (Figure 19).

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  9. Mount the height-of-cut chains to the desired height-of-cut hole with the clevis pin and hairpin cotter (Figure 20).

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

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Side Mower Decks

To adjust the height of cut on the side mower decks, 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 21 and Figure 23).

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

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  3. Install 2 shims (3 mm [1/8 inch]) onto the spindle shaft as they were originally installed. These shims are required to achieve a level across the entire width of the mower decks. Slide the appropriate number of 13 mm (1/2 inch) spacers onto the spindle shaft to get the desired height-of-cut; then slide the washer onto the shaft.

    Note: These shims require a level across the entire width of the mower decks. 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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  4. Push the caster spindle through the front caster arm and install the shims (as they were originally installed) and the remaining spacers onto the spindle shaft.

  5. Remove the hairpin cotter and clevis pins from the caster-pivot arms (Figure 23).

  6. 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 23 and Figure 24).

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  7. Insert the clevis pins and install the hairpin cotters.

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

  9. Remove the hairpin cotters and clevis pins securing the damper links to the mower-deck brackets (Figure 25).

    Important: The damper-link length should never be adjusted. The length between the hole centers should be 13.7 cm (5-3/8 inches).

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  10. Align the damper-link holes with the selected height-of-cut bracket holes in the mower-deck frame, insert the clevis pins, and install the hairpin cotters (Figure 26).

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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).

Note: When the skids become worn, you can switch them to the opposite sides of the mower by flipping them over. This allows you to use the skids longer before replacing them.

Adjust the skids (Figure 27).

Important: Torque the screw at the front of each skid to 9 to 11 Nm (80 to 100 in-lb).

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Adjusting the Mower-Deck Rollers

The mower-deck rollers should be mounted in the lower position when operating at height of cuts greater than 64 mm (2-1/2 inches), and in the higher position when operating in height of cuts lower than 64 mm (2-1/2 inches).

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Correcting a Mismatch Between Mower Decks

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 mower decks to the desired height of cut; refer to Adjusting the Height of Cut.

  2. Check and adjust the front and rear tire pressures to 172 to 207 kPa (25 to 30 psi).

  3. Check and adjust all of caster tire pressures 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 mower decks are cutting at the same height.

  7. If mower-deck adjustments are still needed, find a flat surface using a 2 m (6 foot) 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 mower decks onto a flat surface and remove the covers from the top of the mower decks.

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

Front Mower Deck Setup

Rotate the blade on each spindle until the ends face forward and backward. Measure from the floor to the front tip of the cutting edge. Adjust 3 mm (1/8 inch) shims on the front caster fork(s) to match the height-of-cut decal (Figure 29); refer to Adjusting the Mower-Deck Pitch.

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Side Mower Deck Setup

Rotate the blade of each spindle until the ends face forward and backward. Measure from the floor to the front tip of the cutting edge. Adjust the 3 mm (1/8 inch) shims on front caster arm(s) to match the height-of-cut decal (Figure 30). For the outside blade spindle only, refer to Adjusting the Mower-Deck Pitch.

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Matching the Height of Cut Between Mower Decks

  1. Position the blade side to side on the outside spindle of both side mower decks.

    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 mower deck and corresponding outside spindle of the front mower deck.

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

    Note: All 3 mower deck 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 mower decks, make the adjustments to the side mower decks only.

  3. If the inside edge of the side mower deck is too high relative to the outside edge of the front mower deck, remove a 3 mm (1/8 inch) shim from the bottom of the front, inside caster arm on the side mower deck (Figure 30).

    Note: Check the measurements between the outside edges of both side mower decks and the inside edge of the side mower deck to the outside edge of the front mower deck again.

  4. If the inside edge is still too high, remove an additional 3 mm (1/8 inch) shim from the bottom of front, inside caster arm of the side mower deck and a 3 mm (1/8 inch) shim from the front, outside caster arm of the side mower deck.

  5. If the inside edge of the side mower deck is too low relative to the outside edge of the front mower deck, add a 3 mm (1/8 inch) shim to the bottom of the front, inside caster arm on the side mower deck.

    Note: Check the measurement between the outside edges of both side mower decks and the inside edge of the side mower deck to the outside edge of front mower deck again.

  6. If the inside edge is still too low, add an additional 3 mm (1/8 inch) shim to the bottom of front, inside caster arm of the side mower deck and add a 3 mm (1/8 inch) shim to the front, outside caster arm of the side mower deck.

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

    Note: Adjust as necessary.

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Checking the Safety-Interlock Switches

The machine has interlock switches in the electrical system. These switches are designed to stop the engine when operator rises from the seat while pressing the traction pedal. However, the operator may rise from the seat while the engine is running and the traction pedal is in NEUTRAL. Although the engine will continue to run if the PTO switch is disengaged and the traction pedal is released, stop the engine before rising from the seat.

To check the operation of the interlock switches, perform the following procedure:

  1. Drive the machine slowly to a large, relatively open area. Lower the mower deck, stop the engine, and apply the parking brake.

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

  3. Sit on the seat and start the engine. Rise from the seat and move the PTO switch to ON. The PTO should not engage. 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 engine should kill. If the engine does not kill, there is a malfunction in the interlock system that should be corrected before beginning operation.

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 31). Pull the lever rearward to tilt the mirror to reduce the brightness and glare of light.

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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 31).

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Aiming the Headlights

  1. Loosen the mounting nuts and position each headlight so 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 degrees, then tighten the nut.

  5. Repeat the procedure on the other headlight.

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During Operation

During Operation Safety

General Safety

  • The owner/user can prevent and is responsible for accidents that may cause injuries to himself/herself and others and for damage to property.

  • Wear appropriate clothing, including eye protection; slip-resistant, substantial footwear; and hearing protection. Wearing safety shoes and long pants is advisable and required by some local ordinances and insurance regulations. Tie back long hair, secure loose clothing, and do not wear jewelry.

  • Ensure that all drives are in the NEUTRAL position, the parking brake is engaged, and you are in the operating position before you start the engine.

  • Keep all body parts, including hands and feet, away from all moving parts.

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

  • Keep the direction of the mower discharge away from people and pets.

  • Do not mow in reverse unless it is absolutely necessary. If you must mow in reverse, look behind and down for small children before and while moving the machine in reverse. Stay alert and stop the machine if a child enters the area.

  • Use extreme care when approaching blind corners, shrubs, trees, or other objects that may block your view.

  • Do not mow near drop-offs, ditches, or embankments. The machine could suddenly roll over if a wheel goes over the edge or if the edge caves in.

  • Never carry passengers on the machine.

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

  • Do not mow on wet grass. Reduced traction could cause the machine to slide.

  • Never raise the mower deck with the blades running.

  • Stop the machine and inspect the blades after striking an object or if there is an abnormal vibration in the machine. Make all necessary repairs before resuming operation.

  • Stop the blades whenever you are not mowing, especially while crossing loose terrain such as gravel.

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

  • Turn on the flashing warning lights on the machine whenever you travel on a public road, except where such use is prohibited by law.

  • Disengage the drive to the attachment and shut off the engine before adding fuel and adjusting the height of cut.

  • Reduce the throttle setting before stopping the engine and, if the engine has a fuel-shutoff valve, shut off the fuel when you have finished operating the machine.

  • Never run an engine in an area where exhaust gases are enclosed.

  • Never leave a running engine unattended.

  • Before leaving the operating position, do the following:

    • Stop the machine on level ground.

    • Disengage the power take-off and lower the attachments.

    • Set the parking brake.

    • Shut off the engine and remove the key.

    • Wait for all moving parts to stop.

  • Do not change the governor settings on or overspeed the engine. Operating the engine at excessive speed may increase the potential for personal injury.

  • Do not use the machine as a towing vehicle.

  • Use accessories and attachments approved by The Toro® Company only.

Rollover Protection System (ROPS) Safety

  • A cab installed by Toro is a ROPS.

  • Do not remove the ROPS from the machine.

  • Ensure that the seat belt is attached and that you can release it quickly in the event of an emergency.

  • Always wear your seat belt.

  • Check carefully for overhead clearances, such as branches, doorways, and electrical wires, before driving the machine under them. 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 a damaged ROPS. Do not repair or revise it.

  • Any alterations to a ROPS must be approved by The Toro® Company.

Slope Safety

  • Slow down the machine and use extra care on hillsides. Travel in the recommended direction on hillsides. Turf conditions can affect the stability of the machine.

  • Avoid starting, stopping, or turning the machine on a slope. If the tires lose traction, disengage the blade(s) and proceed slowly straight down the slope.

  • Do not turn the machine sharply. Use care when reversing the machine.

  • When operating the machine on a slope, always keep all cutting units lowered.

  • Avoid turning the machine on slopes. If you must turn, turn slowly and gradually downhill, if possible.

  • Use extra care while operating the machine with attachments; they can affect the stability of the machine. Follow the recommendations for using the machine on a slope in this Operator’s Manual.

Starting and Stopping the Engine

Starting the Engine

Important: The fuel system must be bled if any of the following situations have occurred:

  • 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 throttle control to the low idle position.

  3. Turn the ignition key to the RUN position. The glow indicator will light.

  4. When the glow indicator dims, turn the ignition key to the START position.

    Important: Do not run the starter motor more than 15 seconds at a time or premature starter failure may result. If the engine fails to start after 15 seconds, turn the key to the OFF position, check the controls and procedures, wait 15 additional seconds, and repeat the starting procedure.

  5. Release the key immediately when the engine starts and allow it to return to the RUN position.

  6. Move the throttle control to the desired position.

    When the temperature is less than -7°C (20°F), the starter motor can be run for 30 seconds on then 60 seconds off for 2 attempts.

    Caution

    Shut the engine off and wait for all moving parts to stop before checking for oil leaks, loose parts, and other malfunctions.

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Stopping 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 the engine off. Failure to do so may lead to turbocharger trouble.

Note: Lower the mower decks 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 mower decks.

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

  2. Move the PTO switch to the OFF position.

  3. Set the parking brake.

  4. Rotate the ignition key to the OFF position.

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

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Understanding Smart Power

With Toro Smart Power ™, the operator does not have 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. The operator can simply set a max ground speed, that is comfortable, and mow without having to manually reduce the traction speed when mowing in heavy conditions.

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Reversing Fan Operation

The fan speed is controlled by the hydraulic-oil temperature and engine-coolant temperature. A reverse cycle is automatically initiated when either the engine coolant or hydraulic-oil temperature reaches a certain point. This reversal will help blow debris off the rear screen and lower the engine and hydraulic-oil temperatures. By simultaneously pressing the right and left buttons on the InfoCenter, the fan will complete a manually-initiated reverse cycle. It is recommended to manually reverse the fan prior to leaving the work area, entering the shop, or storage area.

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Understanding Auto Idle

The machine is equipped with auto idle, which automatically idles the engine when all of the following functions are not used, for a pre-determined time, 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 any of the above functions are initiated, the machine will automatically return to the previous throttle position.

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Cutting Grass with the Machine

Note: Cutting grass at a rate that loads the engine promotes DPF regeneration.

  1. Move the machine to the job site.

  2. Whenever possible, set the engine-speed switch to high idle.

  3. Engage the PTO switch.

  4. Gradually move the traction pedal forward and slowly drive the machine over the mowing area.

  5. Once the front of the cutting units are over the mowing area, lower the cutting units.

  6. Cut grass so that the blades can cut and discharge clippings at a high rate while producing a good quality of cut.

    Note: If the cutting rate is too high, the quality of cut may deteriorate. Reduce the ground speed of the machine or reduce the width of cut to regain high idle engine speed.

  7. When the cutting units are over the far edge of the mowing area, lift the cutting units.

  8. Perform a tear-shaped turn to quickly line up for your next pass.

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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 is too high, the engine computer signals you through the InfoCenter when additional processes (assist and reset regeneration) are running.

  • Allow the assist and 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 engine speed generally produce 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.

Caution

The exhaust temperature is hot (approximately 600°C (1112°F) during DPF parked regeneration or recovery 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.

DPF Soot Accumulation

  • Over time, the DPF 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 diesel particulate filter.

  • 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 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 Recovery Regeneration.
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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 a system advisory or an engine fault to indicate the accumulation of ash in the DPF.

  • The advisory and faults are indications 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 LevelAdvisory or Fault CodeEngine Speed ReductionEngine Power RatingRecommended Action
Level 1: System Advisory
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None100%Notify your service department that advisory #179 displays in the InfoCenter.
Level 2: 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 3: 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 4: Engine Warning
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Engine speed at max 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
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Types of Diesel Particulate Filter Regeneration

Types of diesel particulate filter regeneration that are performed while the machine is operating:
Type of RegenerationConditions for DPF regenerationDPF description of operation
PassiveOccurs during normal operation of the machine at high-engine speed or high-engine loadThe 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 as a result of low-engine speed, low-engine load, or after the computer detects back pressure in the DPFWhen the assist/reset-regeneration icon Graphic is displayed in the InfoCenter, an assist regeneration is in progress.
During assist regeneration, the computer controls the intake throttle to increase the exhaust temperature, enabling assist regeneration to occur.
Refer to Assist DPF Regeneration.
ResetOccurs after assist regeneration only if the computer detects that assist regeneration did not sufficiently reduce the soot levelWhen the assist/reset-regeneration icon Graphic is displayed in the InfoCenter, a regeneration is in progress.
Also occurs every 100 hours to reset baseline sensor readings
During reset regeneration, the computer controls the intake throttle and fuel injectors to increase the exhaust temperature during regeneration.
Refer to Reset Regeneration.
Types of diesel particulate filter regeneration that require you to park the machine:
Type of RegenerationConditions for DPF regenerationDPF description of operation
ParkedSoot buildup occurs as a result of prolonged operation at low-engine speed or low-engine load. May also occur as a result of using incorrect fuel or oilWhen the parked-regeneration icon Graphic is displayed in the InfoCenter, a regeneration is requested.
The computer detects back pressure due to soot buildup and requests a parked regeneration
  Perform the parked regeneration as soon as possible to avoid needing a recovery regeneration.
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 recovery regeneration.
Refer to Parked Regeneration.
RecoveryOccurs as a result of ignoring parked regeneration requests and continuing operation, adding more soot when the DPF is already in need of a parked regenerationWhen the recovery-regeneration icon Graphic is displayed in the InfoCenter, a recovery regeneration is requested.
Contact your Authorized Toro Distributor to have a service technician perform the recovery regeneration.
A recovery regeneration requires up to 4 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 Recovery Regeneration.
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Passive DPF Regeneration

  • Passive regeneration occurs as part of normal engine operation.

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

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Assist DPF Regeneration

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  • The assist/reset-regeneration icon displays in the InfoCenter (Figure 38).

  • The computer takes control of the intake throttle to increase the temperature of the engine exhaust.

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

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

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

    Important: Allow the machine to complete the assist regeneration process before shutting off the engine.

    Note: The assist regeneration is finished processing when the Graphic icon disappears from the InfoCenter.

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Reset Regeneration

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  • The assist/reset-regeneration icon displays in the InfoCenter (Figure 39).

  • The computer takes control of the intake throttle and changes the fuel injection operation to increase the temperature of the engine exhaust.

    Important: The assist/reset-regeneration 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 when possible to promote DPF regeneration.

  • The Graphic 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: Allow the machine to complete the reset regeneration process before shutting off the engine.

    Note: The reset regeneration is finished processing when the Graphic icon disappears from the InfoCenter.

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Parked Regeneration

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  • The parked-regeneration requested icon displays in the InfoCenter (Figure 40).

  • If a parked regeneration is needed, the InfoCenter displays engine warning SPN 3719, FMI 16 (Figure 41) and the engine computer derates engine power to 85%.

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    Important: If you do not complete a parked regeneration within 2 hours, the engine computer derates engine power to 50%.

  • A parked regeneration requires 30 to 60 minutes to complete.

  • If you are authorized by your company, you need the PIN code to perform the parked-regeneration process.

Preparing to Perform a Parked or Recovery Regeneration

  1. Ensure that the machine has at least 1/4 tank of fuel.

  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, lower the cutting units and shut them off.

  6. Engage the parking brake.

  7. Set the throttle to the low IDLE position.

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Performing a Parked Regeneration

Note: For instructions on unlocking protected menus, refer to Accessing Protected Menus.

  1. Access the protected menu and unlock the protected settings submenu (Figure 42); refer to Accessing Protected Menus.

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  2. Navigate to the MAIN MENU, press the center button to scroll down to the SERVICE MENU, and press the right button to select the SERVICE option (Figure 43).

    Note: The InfoCenter should display the PIN indicator in the upper right corner of the display.

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  3. In the SERVICE MENU, press the middle button until the DPF REGENERATION options displays, and press the right button to select the DPF REGENERATION option (Figure 44).

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  4. When the “Initiate DPF Regen. Are you sure? message displays, press the center button (Figure 45).

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  5. If the coolant temperature is below 60°C (140°F) the “Insure Graphic is running and above 60C/140F message displays. (Figure 46).

    Observe the temperature in the display, and run the machine at full throttle until the temperature reaches 60°C (140°F), then press the center button.

    Note: If the coolant temperature is above 60°C (140°F) this screen is skipped.

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  6. Move the throttle control to LOW IDLE and press the center button (Figure 47).

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  7. The following messages display as the parked regeneration process begins:

    1. The “Initiating DPF Regen. message displays (Figure 48).

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    2. The “Waiting on Graphic message displays (Figure 49).

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    3. The computer determines whether the regeneration runs. One of the following messages displays in the InfoCenter:

      • If the regeneration is allowed, the “Regen Initiated. Allow up to 30 minutes for completion message displays in the InfoCenter, wait for the machine to complete the parked regeneration process (Figure 50).

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      • If the regeneration process is not allowed by the engine computer, the “DPF Regen Not Allowed message displays in the InfoCenter (Figure 51). Press the left button to exit to the home screen

        Important: If you did not meet all the requirements for regeneration or if less than 50 hours have passed since the last regeneration, the “DPF Regen Not Allowed message appears.

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  8. While the regeneration is running, the InfoCenter returns to the home screen and shows the following icons:

    GraphicThe engine is cold—wait.
    GraphicThe engine is warm—wait.
    GraphicThe engine hot—regeneration in progress (percent complete).
  9. The parked regeneration is complete when the “Regen Complete message displays in the InfoCenter. Press the left button to exit to the home screen (Figure 52).

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Recovery Regeneration

  • If you ignore the request for a parked regeneration (displayed in the InfoCenter) and continue to operate the machine, a critical amount of soot builds up in the DPF.

  • If a recovery regeneration is needed, the InfoCenter displays engine warning SPN 3719, FMI 16 (Figure 53) and the engine computer derates engine power to 85%.

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    Important: If you do not complete a recovery regeneration within 15 minutes, the engine computer derates engine power to 50%.

  • Perform a recovery-regeneration whenever there is a loss of engine power and a parked regeneration cannot effectively clean the DPF of soot.

  • A recovery regeneration requires up to 4 hours to complete.

  • You need a distributor technician to perform the recovery regeneration process; contact your Authorized Toro Distributor.

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Using 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 either the brake pedal or moving the traction pedal into the reverse position, for 1 second, will also disengage the pedal position.

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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 will automatically move to HIGH or LOW IDLE, depending on which of the switch is depressed.

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Adjusting the Mowing Speed

Supervisor (Protected Menu)

Allows the supervisor to set the maximum mowing speed, in increments of 50%, 75% or 100%, at which the operator can mow (low range).

Refer to Using the InfoCenter Control for the procedure to set the mow speed.

Operator

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: This feature may also be used in conjunction with cruise control.

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Adjusting the Transport Speed

Supervisor (Protected Menu)

Allows the supervisor to set the maximum transport speed, in increments of 50%, 75% or 100%, at which the operator can transport (high range).

Refer to Using the InfoCenter Control for the procedure to set the transport speed.

Operator

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 will transfer based on the previous setting. The settings are reset when the machine is turned off.

Note: This feature may also be used in conjunction with cruise control.

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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, mower deck, or other implements, are the transmission, engine speed, load on the mower blades or other implement components, and the importance of the brakes.

With Toro Smart Power ™, the operator does not have 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.

The brakes can be used 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, depress the uphill turn pedal gradually and intermittently until the uphill wheel stops slipping, thus, increasing traction on the downhill wheel.

Traction Assist is now 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 roll overs. For steering control, the mower deck must be lowered when going downhill.

Before stopping the engine, disengage all controls and change the throttle to SLOW. Changing the throttle to SLOW reduces high engine speed, noise, and vibration. Turn the key to the OFF position to stop the engine.

Before transporting the machine, raise the mower decks and secure the transport latches (Figure 54).

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Operating Tips

Operating the Machine

  • Start the engine and run it at HALF IDLE until it warms up. Push the throttle lever all the way forward, lift the mower decks, 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.

  • When possible, mow up and down hills rather than across them. Have the mower decks lowered when going down a hill to maintain steering control. Do not attempt to turn the machine on a hill.

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

  • Always drive slowly in rough areas.

  • If an obstacle is in the way, lift the mower decks to mow around it.

  • When transporting the machine from 1 work area to another, raise the mower decks to the fully upward position, move the mow/transport slide to the left to transport, and place the throttle in the FAST position.

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Changing Mowing Patterns

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

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Understanding Counterbalance

The counterbalance system maintains hydraulic back pressure on the deck-lift cylinders. This counterbalance pressure transfers mower deck weight to the mower drive wheels to improve traction. 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 mower deck, 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 Service Manual for your traction unit for instructions to adjust the counterbalance pressure.

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Resolving After-Cut Appearance

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

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Using Proper Mowing Techniques

  • To begin cutting, engage the mower decks, then approach the mowing area slowly. Once the front mower decks are over the mowing area, lower the mower decks.

  • 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 mower decks reach the edge of the mowing area, lift the mower decks, and perform a tear-drop-shaped turn to quickly line up for your next pass.

  • The mower decks tend to throw grass to the left side of the machine. If you are trimming around bunkers, it is best to mow in a clockwise direction to prevent throwing clippings into the bunker.

  • Bolt-in mulching baffles are available for the mower decks. 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.

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Mowing When the Grass Is Dry

Mow either in the late morning to avoid the dew, which causes grass clumping, or late afternoon to avoid the damage that direct sunlight can cause on the sensitive, freshly mowed grass.

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

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

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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.

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Checking the Condition of the Mower Deck

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

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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 mower-deck blades for sharpness.

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After Operation

After Operation Safety

General Safety

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

  • Shut off the fuel while storing or transporting the machine.

  • Disengage the drive to the attachment whenever you are transporting or not using the machine.

  • Use full-width ramps for loading the machine into a trailer or truck. Do not exceed a 15° angle between the ramp and the trailer or truck.

  • Tie the machine down securely using straps, chains, cable, or ropes. Both front and rear straps should be directed down and outward from the machine.

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

  • 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.

Towing Safety

  • Tow only with a machine that has a hitch designed for towing. Do not attach towed equipment except at the hitch point.

  • Follow the manufacturer’s recommendation for weight limits for towed equipment and towing on slopes. On slopes, the weight of the towed equipment may cause loss of traction and loss of control.

  • Never allow children or others in or on towed equipment.

  • Travel slowly and allow extra distance to stop when towing.

Pushing or Towing the Machine

In an emergency, the machine can be moved 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), because internal-transmission damage may occur. The bypass valves must be open whenever the machine is pushed or towed.

  1. Raise the seat and locate the bypass valves, which are located below the front of the fuel tank (Figure 55).

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

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

  3. Close the bypass valves before starting the engine.

  4. Torque to 70 Nm (52 ft-lb) to close the valve.

Important: If the machine must to be pushed or towed in reverse, the check valve in the four-wheel drive manifold must also be bypassed. To bypass the check valve, connect a hose assembly (Hose Part No. 95-8843, Coupler Fitting No. 95-0985 [Qty. 2], and Hydraulic Fitting No. 340-77 [Qty. 2]) to the reverse traction pressure test port, located on the hydrostat, and on the port located in-between ports M8 and P2 on the rear traction manifold which is located behind the front tire.

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Locating the Jacking Points

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

Warning

Always use jack stands. Don't rely on a jack or hoist to hold the machine.

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

  • At the center of the rear axle

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Locating the Tie-Down Points

There are tie downs located at the front and rear sides of the machine (Figure 56).

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

Important: Refer to your engine operator'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.

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

Recommended Maintenance Schedule(s)

Maintenance Service IntervalMaintenance Procedure
After the first operating hour
  • Torque the wheel-lug nuts.
  • After the first 10 operating 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 operating hours
  • Change the engine oil and filter.
  • After the first 200 operating hours
  • Change the front planetary-gear oil.
  • Change the rear-axle oil.
  • Change the hydraulic filters.
  • Before each use or daily
  • Check the tire pressure.
  • Check the interlock switches.
  • Check the engine-oil level.
  • Drain water or other contaminants from the fuel filter/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
  • Every 25 hours
  • Check the electrolyte level.(If the machine is in storage, check it every 30 days.)
  • Every 50 hours
  • Lubricate all of the bearings and bushings.
  • 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
  • Change the engine oil and filter.
  • Clean the cab air filters; replace them if they are torn or excessively dirty.
  • Clean the air-conditioning assembly(more frequently in extremely dusty or dirty conditions).
  • Every 400 hours
  • Check the planetary-gear-drive oil.
  • Check the rear-axle lubricant.
  • Check the rear-axle-gear-box lubricant.
  • 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 engine fuel filter.
  • Replace the fuel-filter canister.
  • Every 500 hours
  • Grease the bearings in the rear axle.
  • Every 800 hours
  • Change the front planetary-gear oil.(Or yearly, whichever comes first)
  • Change the rear-axle oil.
  • Check the rear wheel toe-in.
  • Inspect the blade-drive belt.
  • Change the hydraulic fluid.
  • Change the hydraulic filters.
  • Inspect the side mower-deck damper.
  • Inspect the mower deck caster-wheel assemblies.
  • Every 1,000 hours
  • Drain and clean the fuel tank.
  • Check and adjust the valve clearance.
  • Every 2 years
  • Drain and clean the fuel tank.
  • Flush the cooling system and replace the fluid.
  • 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.

    Service-Interval Chart

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    Pre-Maintenance Procedures

    Pre-Maintenance Safety

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

    • Never allow untrained personnel to service the machine.

    • Before adjusting, cleaning, or repairing the machine, do the following:

      1. Move the machine to level ground.

      2. Disengage the drives.

      3. Lower the cutting units.

      4. Move the traction pedal to the NEUTRAL position.

      5. Engage the parking brake.

      6. Move the throttle switch to the LOW-IDLE position.

      7. Shut off the engine and remove the key.

      8. Wait for all moving parts to stop.

    • Whenever you park or store the machine, or leave it unattended, lower the cutting units unless you use a positive mechanical lock.

    • If possible, do not perform maintenance on the machine while the engine is running. If you must run the engine to perform maintenance on the machine, keep your hands, feet, other body parts, and clothing away from all moving parts, the mower-discharge area, and the underside of the mowers.

    • Do not touch parts of the machine or an attachment that may be hot from operation. Allow the parts to cool before attempting to maintain, adjust, or service them.

    • Use jack stands to support the machine and/or its components when required.

    • Carefully release pressure from components with stored energy.

    • If your machine requires major repairs or if you desire assistance, contact an Authorized Toro Distributor.

    • 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.

    Preparing the Machine for Maintenance

    1. Ensure that the PTO is disengaged.

    2. Park the machine on a level surface.

    3. Set the parking brake.

    4. Lower the mower deck(s) if necessary.

    5. Shut off the engine and wait for all moving parts to stop.

    6. Turn the ignition key to the STOP position and remove it.

    7. Allow machine components to cool before performing maintenance.

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    Removing the Hood

    1. Unlatch and raise the hood.

    2. Remove the hairpin cotter securing the hood pivot to the mounting brackets (Figure 58).

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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.

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    Lubrication

    Greasing the 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 59)

    • 2 front and rear-axle-pivot bushings (Figure 60)

    • 2 steering-cylinder-ball joints (Figure 61)

    • 2 tie-rod-ball joints (Figure 61)

    • 2 king-pin bushings (Figure 61).The top fitting on the king pin should only be lubricated annually (2 pumps).

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    Front Mower Deck

    • 2 caster-fork-shaft bushings (Figure 62)

    • 3 spindle-shaft bearings—located under the pulley (Figure 63)

    • 2 idler-arm-pivot bushings (Figure 63)

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    Front Lift Assemblies

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    Side Mower Decks

    • 1 caster-fork-shaft bushing (Figure 66)

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

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

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    Side Lift Assemblies

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    Engine Maintenance

    Engine Safety

    Shut off the engine before checking the oil or adding oil to the crankcase.

    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.

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    Checking 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.

    1. Park the machine on a level surface.

    2. Check the engine-oil level (Figure 71).

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

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    Crankcase Oil Capacity

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

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    Changing 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 72).

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    4. Add oil to the crankcase.

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    Servicing the Air Cleaner

    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 (Figure 73) requires it. Changing the air filter before it is necessary only increases the chance of dirt entering the engine when the filter is removed.

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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 74).

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      Note: Cleaning the used element is not recommended due to the possibility of damage to the filter media.

      Important: Never attempt to clean the safety filter (Figure 75). Replace the safety filter after every 3 primary filter services.

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    2. Reset the indicator (Figure 73) if it shows red.

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

    • 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 77) 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.

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    Fuel System Maintenance

    Servicing the Fuel System

    Draining the Fuel Tank

    Drain and clean the tank also if the fuel system becomes contaminated or if you are storing the machine for an extended period of time. Use clean fuel to flush out the tank.

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    Inspecting the Fuel Lines and Connections

    Check the fuel lines and connections every 400 hours or yearly, whichever comes first. Inspect them for deterioration, damage, or loose connections.

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    Servicing the Fuel Filter

    The fuel filter should be replaced after every 400 hours of operation.

    1. Clean the area around the fuel-filter head (Figure 78).

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    2. Remove the filter and clean the filter head mounting surface (Figure 78).

    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.

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    Servicing the Water Separator

    Service the water separator as shown in Figure 79.

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    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.

    • Battery acid is poisonous and can cause burns. Avoid contact with your skin, eyes, and clothing. Protect your face, eyes, and clothing when working with a battery.

    • Battery gases can explode. Keep cigarettes, sparks, and flames away from the battery.

    • Charge the batteries 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.

    • Do not use a pressure washer near any electronic components.

    Warning

    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.

    Servicing the Battery

    Important: Before welding on the machine, disconnect the negative cable from the battery to prevent damage to the electrical system.

    Note: Check the battery condition weekly or after every 50 hours of operation. Keep the terminals and the entire battery case clean because a dirty battery will discharge 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 80).

      Note: Press down on the flat surface above the battery cover to ease the removal of the cover (Figure 80).

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      Warning

      Charging the battery produces gasses that can explode.

      Never smoke near the battery and keep sparks and flames away from battery.

    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.

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    Locating the Fuses

    The traction-unit fuses are located under the power-center cover (Figure 82, Figure 83, and Figure 84).

    Remove the 2 screws securing the power-center cover to the frame and remove the cover (Figure 82).

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    The cab fuses are located in the fuse box in the cab headliner (Figure 85 and Figure 86).

    Note: Cab model only

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    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 87).

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    2. Pivot the pedal to the desired operating angle and tighten the nuts (Figure 87).

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    Changing the Planetary-Gear-Drive Oil

    Change the oil initially after first 200 hours of operation. Thereafter change the oil every 800 hours, or yearly, whichever occurs 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 88).

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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 89).

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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 oz) of high quality SAE 85W-140 wt gear lube.

      Important: If the planetary fills before the 0.65 L (22 oz) of oil is added, wait one hour or install the plug and move the machine approximately ten feet 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.

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    Changing the Rear-Axle Oil

    Change the oil initially after the first 200 hours of operation and every 800 hours of operation thereafter.

    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 90).

    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 gear box (Figure 91).

    6. Remove the drain plug from the gear box 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 Checking the Rear-Axle-Gearbox Lubricant.

    8. Install the plugs.

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    Checking the Rear Wheel Toe-In

    After every 800 operating hours or annually, 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.

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    Cooling System Maintenance

    Cooling System Safety

    Caution

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

    • Do not remove the radiator cap when the engine is hot. Always allow the engine to cool at least 15 minutes or until the radiator cap is cool enough to touch without burning your hand before removing the radiator cap.

    • Do not touch the radiator and surrounding parts that are hot.

    Danger

    Swallowing engine coolant can cause poisoning.

    • Do not swallow engine coolant.

    • Keep out of reach from children and pets.

    Checking the Cooling System

    Check the coolant level at the beginning of each day. The capacity of the system is 8.52 L (9 quarts) for the Groundsmaster 4000 and 20 L (14.5 qts) for the Groundsmaster 4010.

    1. Carefully remove the radiator cap and expansion-tank cap (Figure 92).

    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 base coolants, as this may cause damage.

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

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    Servicing the Engine-Cooling System

    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 build-up. 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. Turn the engine off 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 93).

      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.

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    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. Disengage 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 2 mounting screws and remove the brake-adjustment cover (Figure 94).

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      2. Loosen the front nut on the threaded end of the brake cable (Figure 95).

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

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

      5. Install the brake-adjustment cover.

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    Belt Maintenance

    Servicing the Alternator Belt

    Check the condition and tension of the belt after every 100 operating hours.

    Proper tension will allow 10 mm (3/8 inch) of deflection when a force of 44 Nm (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 96).

    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 Compressor Belt

    Cab Model Only

    Check the condition and tension of the belt after every 100 operating hours.

    1. Proper tension will allow 10 mm (3/8 inch) deflection when a force of 44 Nm (10 ft-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 96).

      Note: 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.

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    Tensioning the Blade-Drive Belts

    Check the condition and tension of the mower deck drive belts initially after 10 hours of operation and every 50 operating hours thereafter.

    When properly tensioned, the inside measurement of the extension spring (hook to hook) should be approximately 8.27 to 9.53 cm (3.25 to 3.75 inches). Once the correct spring tension is attained, adjust the stop bolt (carriage bolt) until there is approximately 0.17 to 0.4732 cm (0.065 to 0.185 inches) clearance between the head of the bolt and the idler arm (Figure 97).

    Note: Ensure that the belt is positioned on the spring side of the belt guide (Figure 97).

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    Replacing 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 are: 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 allowing the removal of the extension spring (Figure 97).

    3. Loosen the flange nut securing the stop bolt to the mounting tab and move the idler pulley away from the belt to release the belt tension (Figure 97).

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

      Note: If the stop bolt is ever removed from the mounting tab, make sure that it is installed again 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 98).

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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 97).

    9. Connect the extension spring (Figure 97) 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 8.27 to 9.53 cm (3.25 to 3.75 inches).

      • When you attain the correct spring tension, adjust the stop bolt (carriage bolt) until there is approximately 0.17 to 0.4732 cm (0.065 to 0.185 inches) clearance between the head of the bolt and the idler arm.

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    Hydraulic System Maintenance

    Hydraulic System Safety

    Warning

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

    • 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.

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

    Servicing the Hydraulic System

    Checking the Hydraulic Fluid

    The reservoir is filled at the factory with approximately 29 L (7.75 US gallons) of high-quality hydraulic fluid. Check the level of the hydraulic fluid before the engine is first started and daily thereafter. The recommended replacement fluid is as follows:

    Toro Premium All Season Hydraulic Fluid (Available in 19 L (5 US gallons) pails or 208 L (55 US gallons) drums. See the Parts Catalog or your Toro Distributor for part numbers).

    Alternative fluids: If the Toro fluid is not available, other conventional, petroleum-based fluids may be used, provided they meet all of the following material properties and industry specifications. Check with your oil supplier to see whether the oil meets these specifications.

    Note: Toro does not assume responsibility for damage caused by improper substitutions, so use only products 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 D445St @ 40° C 44 to 50
     St @ 100° C 7.9 to 8.5
     Viscosity Index ASTM D2270140 to 160
     Pour Point, ASTM D97-34° F to -49° F
    Industry Specifications:Vickers I-286-S (Quality Level), Vickers M-2950-S (Quality Level), Denison HF-0

    The proper hydraulic fluids must be specified for mobile machinery (as opposed to industrial plant usage), multi-weight type, with ZnDTP or ZDDP anti-wear additive package (not an ashless-type fluid).

    Toro Synthetic Biodegradable Hydraulic Fluid (Available in 19 L (5 US gallon) pails or 208 L (55 US gallon) drums. See the Parts Catalog or your Toro Distributor for part numbers)

    This high quality synthetic, biodegradable fluid has been tested and found compatible for this Toro model. Other brands of synthetic fluid may have seal compatibility problems and Toro cannot assume responsibility for unauthorized substitutions.

    Important: This synthetic fluid is not compatible with the Toro Biodegradable Fluid previously sold. See your Toro Distributor for more information.

    Alternative biodegradable fluids:

    Mobil EAL Envirosyn H 46 (US)

    Mobil EAL Hydraulic Oil 46 (International)

    Important: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic system oil is available in 20 ml (2/3 fl oz) bottles. 1 bottle is sufficient for 15 to 22L (4 to 6 US gallons) of hydraulic oil. Order Part No. 44-2500 from your Toro Distributor.

    1. Position the machine on a level surface, lower the mower decks, shut off the engine, and remove the key from the ignition.

    2. Check the hydraulic-fluid level (Figure 99).

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    Changing the Hydraulic Fluid

    If the fluid becomes contaminated, contact your local Toro distributor because the system must be flushed. Contaminated fluid looks milky or black when compared to clean oil.

    1. Position the machine on a level surface, lower the mower decks, shut off the engine, and remove the key from the ignition.

    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 100) with hydraulic fluid; refer to Checking the Hydraulic Fluid.

      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.

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    Replacing the Hydraulic Filters

    Use Toro replacement filters Part No. 94-2621 for the rear (mower deck) of the machine and 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 mower decks, engage the parking brakes, shut off the engine, and remove the key from the ignition.

    2. Replace the hydraulic filters (Figure 101).

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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.

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    Checking the Hydraulic Lines and Hoses

    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.

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    Adjusting the Counterbalance Pressure

    The counterbalance test port is used to test the pressure in the counterbalance circuit (Figure 102). The recommended counterbalance pressure is 2241 kPa (325 psi). To adjust the counterbalance pressure, loosen the locknut, rotate the adjusting screw (Figure 102) 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 mower decks should remain on the ground when adjusting the counterbalance and with counterbalance applied.

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    Pivoting (Tilting) the Front Mower Deck to the Upright Position

    Note: Although not needed for normal maintenance procedures, the front mower deck can be pivoted (tilted) to an upright position. Should you desire to tilt the mower deck, proceed as follows:

    1. Raise the front mower deck slightly off the floor, set the parking brake, stop the engine, and remove the ignition key.

    2. Remove the hairpin cotter and clevis pin securing the deck-transport latch to the latch plate and pivot the latch toward the rear of the deck.

    3. Remove the hairpin cotter and clevis pin securing the height-of-cut chains to the rear of the mower deck.

    4. Start the engine, slowly raise the front mower deck, stop the engine, and remove the ignition key.

    5. Grasp the front of the mower deck and lift it to an upright position.

    6. Hold the mower deck upright, fit the cable end over the pin on the mower deck lift arm, and secure it with the hairpin cotter (Figure 103).

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    Pivoting the Front Mower Deck Down

    1. With the help of another person, hold the mower deck upright, remove the hairpin cotter securing the cable end, and remove the cable from the pin.

    2. Pivot (tilt) the mower deck downward.

    3. Store the cable under the operator's platform.

    4. Sit on the seat, start the engine, and lower the mower deck until it is slightly off the floor.

    5. Secure the height-of-cut chains to the rear of the mower deck.

    6. Pivot the transport latch upward into position and secure it with the clevis pin and cotter pin.

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    Adjusting the Mower-Deck Pitch

    Measuring the Mower-Deck 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. Toro recommends 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 mower deck 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.

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    Adjusting the Front Mower-Deck Pitch

    1. Loosen the jam nuts at the top or bottom of the height-of-cut chain U-bolt (Figure 104).

    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 Side Mower-Deck Pitch

    1. Remove the tensioning cap from the spindle shaft and slide the spindle out of the caster arm (Figure 105).

      Note: Position the shims, as required, to raise or lower the caster wheel until the mower deck has the correct pitch.

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    2. Install the tensioning cap.

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    Servicing the Caster-Arm 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, the bushings are worn and must be replaced.

    1. Raise the mower deck so the wheels are off the floor and block the mower deck 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 106).

      Note: Also drive the other bushing out of the tube. Clean the inside of the tubes to remove dirt.

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

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

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

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

    9. 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.

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    Servicing the Caster Wheels and Bearings

    1. Remove the locknut from the bolt holding the caster-wheel assembly between the caster fork (Figure 107) or the caster-pivot arm (Figure 108).

      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 107 and Figure 108).

    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 race 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.

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    Blade Safety

    Danger

    A worn or damaged blade can break, and a piece of the blade could be thrown at you or bystanders, resulting in serious personal injury or death. Trying to repair a damaged blade may result in discontinued safety certification of the product.

    • Inspect the blade periodically for wear or damage.

    • Never try to straighten a blade that is bent or weld a broken or cracked blade.

    • Replace a worn or damaged blade.

    • Use care when checking the blades. Wrap the blades or wear gloves, and use caution when servicing the blades. Only replace 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 Nm (130 to 150 ft-lb).

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

      Note: Block the mower deck to prevent it from accidentally falling.

    2. Rotate the blade until the ends face forward and backward and measure from the inside of the mower deck to the cutting edge at the front of the blade (Figure 109).

      Note: Remember this dimension.

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    3. Rotate the opposite end of the blade forward and measure between the mower deck 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 Mower Blade(s).

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    Removing and Installing the Mower Blade(s)

    The blade must be replaced if a solid object is hit, the blade is out of balance, or if the blade is bent. Always use genuine Toro replacement blades to ensure safety and optimum performance.

    1. Raise the mower deck to the highest position, engage the parking brake, stop the engine, and remove the ignition key.

      Note: Block the mower deck 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 110).

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

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

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

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    Inspecting and Sharpening the Mower Blade(s)

    2 areas must be considered when checking and servicing the mower blade—the sail and the cutting edge. Both cutting edges and the sail, which is the turned-up portion opposite of the cutting edge, contribute to a good quality of cut. The sail is important because it lifts the grass up straight, thereby producing an even cut. However, the sail gradually wears down during operation. As the sail wears down, the quality of cut degrades somewhat, although the cutting edges are sharp. The cutting edge of the blade must be sharp so that the grass is cut rather than torn. A dull cutting edge is evident when the tips of the grass appear brown and shredded. Sharpen the cutting edges to correct this condition.

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

    2. Examine the cutting ends of the blade carefully, especially where the flat and curved parts of the blade meet (Figure 111).

      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 wear is noticed (Figure 111), 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 112).

      Note: Sharpen only the top of the cutting edge and maintain the original cutting angle to ensure sharpness (Figure 112). The blade will remain 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 Mower Blade(s).

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    Correcting a Mower-Deck Mismatch

    If there is mismatch between the blades, on a single mower deck, the grass will appear streaked when it is cut. This problem can be corrected by ensuring that the blades are straight and all of the blades are cutting on the same plane.

    1. Park the machine on a level surface of the shop floor.

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

    3. Lower the mower deck onto the flat surface and remove the covers from the top of the mower deck.

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

    5. Rotate the blades until the ends face forward and backward and measure from the floor to the front tip of the cutting edge.

      Note: Remember this dimension. Then 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 because it is bent. Make sure to measure all of the blades.

    6. 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 7 and add shims between the spindle housing and the bottom of the mower deck.

    7. Remove the bolts, flat washers, lock washers, and nuts from the outer spindle in the area where the shims must be added.

      Note: To raise or lower the blade, add a shim, Part No. 3256-24, between the spindle housing and the bottom of the mower deck. 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.

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

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    Cleaning the Cab Air Filters

    1. Remove the screws and grates from both the in-cab and rear cab air filters (Figure 113 and Figure 114).

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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 thumb screws.

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    Cleaning the Air-Conditioning Assembly

    1. Perform the pre-maintenance procedure; refer to Pre-Maintenance Safety.

    2. Disconnect the wire for each fan.

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    3. Remove the 2 knobs and remove the fan assembly.

    4. Open the 4 latches on the air-conditioning assembly and remove the screen.

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    5. Remove the air filters (see Figure 114).

    6. Clean the air-conditioning assembly.

    7. Install the air filters, screen, and fan assembly (Figure 114, Figure 115, and Figure 116).

    8. Connect the wire for each fan (Figure 115).

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    Pressure-Washing the Cab

    Important: Use care around cab seals and lights (Figure 117). 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 pressure washer directly on cab seals and lights or under rear overhang.

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    Storage

    Preparing for Seasonal Storage

    Traction Unit

    1. Thoroughly clean the traction unit, mower decks, and the engine.

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

    3. Check all fasteners for looseness; tighten as necessary.

    4. Grease or oil 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.

      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 (Toro Part No. 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.

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    Engine

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

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

    3. Fill the oil pan with motor oil.

    4. Start the engine and run it at idle speed for approximately 2 minutes.

    5. Stop the engine.

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

    7. Secure all of the fuel system fittings.

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

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

    10. Check the anti freeze protection and add a 50/50 solution of water and ethylene glycol anti-freeze as needed for the expected minimum temperature in your area.

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