24in Stand-On Aerator

Model No. 29517-Serial No. 400000000 and Up

Model No. 39517-Serial No. 400000000 and Up

Introduction

This aerator is intended to be used by trained operators in residential and commercial applications. It is primarily designed for aerating areas of well-maintained lawns on residential grounds, parks, sports fields, and on commercial grounds.

Read the information in the manual 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 safety and operation training materials, accessory information, help finding a dealer, or to register your product.

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

g231322

Figure 1

  1. Location of the model and serial numbers

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.

g000502

Figure 2

  1. Safety-alert symbol

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

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.

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Important: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land. Other states or federal areas may have similar laws.

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

Safety

Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions, and pay attention to the safety-alert symbol, which means Caution, Warning, or Danger— “personal safety instruction. Failure to comply with the instructions may result in personal injury or death.

Warning

Removing or modifying original equipment, parts and/or accessories may alter the warranty, controllability, and safety of the machine. Unauthorized modifications to the original equipment or failure to use original Toro parts could lead to serious injury or death. Unauthorized changes to the machine, engine, fuel or venting system, may violate applicable safety and government standards.

Replace all parts including, but not limited to, tires, belts, and fuel system components with original Toro parts.

Important: This machine was manufactured according to the appropriate regulatory standards in effect at the time of manufacture. Modifying this machine in any way may cause it to be out of compliance with those standards and with the instructions in this Operator’s Manual. Modifications to this machine should only be made by either the manufacturer or an Authorized Toro Dealer.

This product is capable of injuring your hands and feet. Follow all safety instructions to avoid serious injury or death.

The owner/user can prevent and is responsible for accidents or injuries occurring to people, or damage to property.

Any use of this machine other than aerating turf grass could prove dangerous to you and bystanders.

Important: The addition of attachments made by other manufacturers that do not meet ANSI certification may cause noncompliance of this machine.

Safe Operating Practices

The following instructions are from ANSI standard B71.4-2012.

Training

  • Read the Operator's Manual and other training material.

    Note: If the operator(s) or mechanic(s) cannot read the manual language, it is the owner's responsibility to explain this material to them.

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

  • All operators and mechanics should be trained. The owner is responsible for training the users.

  • Never let children or untrained people operate or service the equipment.

    Note: Local regulations may restrict the age of the operator.

  • The owner/user can prevent and is responsible for accidents or injuries occurring to himself or herself, other people, or damage to property.

Preparation

  • Evaluate the terrain to determine what accessories and attachments are needed to properly and safely perform the job. Use only accessories and attachments approved by the manufacturer.

  • Wear appropriate clothing; including safety glasses, long pants, substantial, slip-resistant footwear, gloves, and hearing protection. Tie back long hair. Do not wear loose jewelry.

  • Inspect the area where you will use the equipment and remove all objects from the area before using the machine.

  • Use extra care when handling fuels. They are flammable and its vapors are explosive.

    • Use only an approved container.

    • Do not remove the fuel cap or add fuel with the engine running. Allow the engine to cool before refueling. Do not smoke near the machine when the engine is running.

    • Do not refuel or drain the machine indoors.

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

Operation

  • Lightning can cause severe injury or death. If lightning is seen, or thunder is heard in the area, do not operate the machine; seek shelter.

  • Do not run an engine in an enclosed area.

  • Operate the machine only in well-lit areas, keeping away from holes and hidden hazards.

  • Ensure that all drives are in neutral and that the parking brake is engaged before starting the engine. Start the engine only from the operator’s position.

  • Ensure that you have good footing while using this machine, especially when backing up.

    Note: Reduced footing could cause slipping.

  • Slow down and use extra care on hillsides. Be sure to travel side to side on hillsides. Turf conditions can affect the stability of the machine. Use caution while operating near drop-offs.

  • Slow down and use caution when making turns and when changing directions on slopes.

  • Do not operate the machine without the shields or other guards securely in place. Ensure that all interlocks are attached, adjusted properly, and functioning properly.

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

  • Stop on level ground, disengage drives, engage the parking brake (if provided), shut off the engine, and remove the key before leaving the operator's position for any reason.

  • Stop equipment, shut off the engine, remove the key, and inspect the tines after striking objects or if an abnormal vibration occurs. Make the necessary repairs before resuming operations.

  • Keep your hands and feet away from the tine assembly.

  • Look behind and down before backing up to ensure a clear path.

  • Stop the machine if anyone enters the area. Keep pets and bystanders away from an operating machine.

  • Slow down and use caution when making turns and crossing roads and sidewalks. Fully raise the tines if you are not aerating.

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

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

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

Safe Handling of Fuels

  • To avoid personal injury or property damage, use extreme care in handling fuel. Fuel is extremely flammable and the vapors are explosive.

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

  • Use only an approved fuel container.

  • Do not remove the fuel cap or add fuel with the engine running.

  • Allow the engine to cool before fueling.

  • Do not fuel the machine indoors.

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

  • Do not fill containers inside a vehicle, on a truck, or on a trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling.

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

  • Keep the 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 fuel is spilled on clothing, change your clothing immediately.

  • Do not overfill the fuel tank. Replace the fuel cap and tighten it securely.

Maintenance and Storage

  • Do not allow untrained personnel to service the machine.

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

  • Keep your hands and feet away from moving parts. If possible, do not make adjustments with the engine running.

  • Disengage the drives, raise the tines, engage the parking brake, shut off the engine, and remove the key or disconnect the spark-plug wire. Wait for all movement to stop before adjusting, cleaning, or repairing.

  • Disconnect the battery or remove the spark-plug wire before making any repairs. Disconnect the negative terminal first and the positive terminal last. Connect the positive first and negative last.

  • Use care when checking the tines. Wrap the tine(s) or wear gloves, and use caution when servicing them. Only replace tines; do not straighten or weld them.

  • Clean grass, dirt, and debris from the tines, drives, mufflers, and engine to help prevent fires.

  • Clean up oil or fuel spills.

  • Park machine on level, hard ground. Never allow untrained personnel to service the machine.

  • Use jack stands to support components when required.

  • Carefully release pressure from components with stored energy.

  • Do not store fuel near flames or drain the fuel indoors.

  • Let the engine cool before storing the machine.

  • Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals.

Hauling

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

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

Aerator Safety

The following list contains safety information specific to Toro products and other safety information you must know.

General Operation

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

  • Use caution when you are riding on the platform and driving the machine over curbs, rocks, roots, or other obstructions.

  • Do not jerk the controls; use a steady motion.

  • Do not carry passengers.

  • Do not carry equipment on the machine.

Slope Operation

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

    • Review and understand the slope instructions in the manual and on the machine.

    • Evaluate the site conditions of the day to determine if the slope is safe for machine operation. Use common sense and good judgment when performing this evaluation. Changes in the terrain, such as moisture, can quickly affect the operation of the machine on a slope.

  • Operate across slopes, never up and down. Avoid operation on excessively steep or wet slopes.

  • Identify hazards at the base of the slope. Do not operate the machine near drop-offs, ditches, embankments, water or other hazards. The machine could suddenly roll over if a wheel goes over the edge or the edge collapses. Keep a safe distance (twice the width of the machine) between the machine and any hazard. Use a walk behind machine or a hand held tool to operate in these areas.

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

  • Do not operate a machine under any conditions where traction, steering or stability is in question. Be aware that operating the machine on wet grass, across slopes or downhill may cause the machine to lose traction. Loss of traction to the drive wheels may result in sliding and a loss of braking and steering. The machine can slide even if the drive wheels are stopped.

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

  • Use extra care while operating with accessories or attachments. These can change the stability of the machine and cause a loss of control. Follow directions for counter weights.

  • If you lose control of the machine, step off and away from the direction of travel of the machine.

Service

  • To ensure optimum performance and continued safety certification of the machine, use only genuine Exmark replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

  • Never remove or tamper with safety devices. Check their proper operation regularly. Never do anything to interfere with the intended function of a safety device or to reduce the protection provided by a safety device.

  • Check the brake operation frequently. Adjust and service the brakes as required.

Safety and Instructional Decals

Graphic

Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing.
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115-4212

  1. Hydraulic-fluid level
  2. Read the Operator's Manual.
  3. Warning—do not touch the hot surface.
decal117-2718

117-2718

decal120-9570

120-9570

  1. Warning—stay away from moving parts; keep all guards and shields in place.
decal121-6150

121-6150

  1. Cutting hazard of hand and foot—stay away from moving parts.
decal121-6161

121-6161

  1. Entanglement hazard, belt—stay away from moving parts; keep all guards in place.
decal121-6163

121-6163

  1. Press to lower the tines.
  2. Release to raise the tines.
decal126-7875

126-7875

  1. Fuse location
  2. Relay location
  3. Main (20 A)
  4. Auxiliary (15 A)
  5. Start relay
  6. Not used
decal135-3685

135-3685

  1. Read and understand the Operator’s Manual before servicing this machine.
  2. Clean and oil the chains and check the chain tension twice every 8 hours
  3. See the engine owner’s manual for service
  4. Check the auxiliary pump drive belt tension every 50 hours
  5. Grease the front caster wheel bearings twice every 100 hours
  6. Grease the belt idler pivot every 100 hours
  7. Check the tire pressure - 23 psi twice every 50 hours
  8. Check the hydraulic oil level twice (Use only recommended hydraulic fluid) every 50 hours
  9. Check the auxiliary hydraulic tank (Use only AW-32 hydraulic fluid) every 50 hours
  10. Grease the tine shaft bearings 4 times every 25 hours
decal135-1854

135-1854

  1. Parking brake
  2. Tine engagement lockout switch
  3. Tines—down
  4. Depth setting—lock
  5. Read the Operator’s Manual before performing maintenance.
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135-2013

  1. Operator weight adjustment
  2. Increase
  3. Decrease
  4. Throttle—fast
  5. Throttle—slow
  6. Engine—on
  7. Engine—start
  8. Engine—off
  9. Parking brake—engage
  10. Parking brake—release
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135-2014

  1. Fast
  2. Slow
  3. Neutral
  4. Reverse
  5. Wheels and tines rotate when moving forward
  6. Wheels and tines rotate when moving backward
  7. Warning—read the Operator’s Manual.
  8. Warning—keep bystanders a safe distance away from the machine.
  9. Warning—Cutting/dismemberment hazard of hand or foot; tines—stay away from moving parts; keep all guards in place.
  10. Warning—Do not operate the machine unless you are trained.
  11. Thrown object hazard—pick up debris before operating the machine.
  12. Warning—shut off the engine, engage the parking break, and remove the ignition key before leaving the machine.
  13. Tipping hazard–Do not operate the machine near drop-offs.
  14. Tipping hazard–Do not turn sharply while traveling fast; slow down and turn gradually.
  15. Tipping hazard–Do not use split ramps; use full width ramps to load a machine for transport.
decal135-2016

135-2016

  1. Electronic tine depth-decrease
  2. Electronic tine depth-increase
  3. Press and hold 1 second to turn on—tine ground engagement foot switch unlock
  4. Press and hold 1 second to turn off—tine ground engagement foot switch lock
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135-3183

  1. Bypass lever position for pushing the machine.
  2. Read the instructions before servicing or performing maintenance.
  3. Bypass lever position for operating the machine.

Setup

Checking Tire Pressure

  1. Check the tire pressure in the drive tires.

    Note: Proper inflation for drive tires is 152 to 165 kPa (22 to 24 psi).

  2. Adjust the tire pressure if necessary.

Servicing the Engine Oil

The engine is shipped with oil; check the engine-oil level and, if necessary, add oil to the appropriate level. Refer to Servicing the Engine Oil for instructions and the oil specification.

Servicing the Battery

Warning

CALIFORNIA

Proposition 65 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.

Note: The machine is shipped with a filled, lead-acid battery.

Danger

Charging or jump-starting the battery may produce explosive gases. Battery gases can explode, causing serious injury.

  • Keep sparks, flames, or cigarettes away from the battery.

  • Ventilate when charging or using the battery in an enclosed space.

  • Ensure that the venting path of the battery is always open once the battery is filled with acid.

  • Always shield your eyes and face from the battery.

Danger

Battery electrolyte contains sulfuric acid, which is fatal if consumed and can cause severe burns.

  • Wear safety glasses to shield your eyes and rubber gloves to protect your skin and clothing when handling electrolyte.

  • Do not swallow electrolyte.

  • In the event of an accident, flush with water and call a doctor immediately.

  1. Move the key switch to the OFF position and remove the key.

  2. Measure the voltage of the battery with a voltmeter.

  3. Use the table below to locate the charge state or the battery, and if needed, the battery-charger setting and charging interval recommended to charge the battery to 12.6 V or greater; refer to the battery charge table below.

    Important: Ensure that the negative battery cable is disconnected and the battery charger used for charging the battery has an output of 16 V and 7 A or less to avoid damaging the battery (see chart for recommended charger settings).

    Battery Charge Table
    Voltage ReadingPercent ChargeMaximum Charger SettingsCharging Interval
    12.6 or greater100%16 V/No charging required
    7 A
    12.4 to 12.675 to 100%16 V/30 minutes
    7 A
    12.2 to 12.450 to 75%16 V/1 hour
    7 A
    12.0 to 12.225 to 50%14.4 V/2 hours
    4 A
    11.7 to 12.00 to 25%14.4 V/3 hours
    4 A
    11.7 or less0%14.4 V/6 hours or more
    2 A

    Caution

    If the key switch is in the ON position, there is potential for sparks and engagement of components. Sparks could cause an explosion or moving parts could accidentally engage, causing personal injury.

    Ensure that the key switch is in the OFF position before charging the battery.

  4. If the positive cable is also disconnected, connect the positive (red) cable to the positive battery terminal and slip the terminal cover over the positive terminal.

  5. Remove the screw, washer, and ground cable from the engine. Connect the negative battery cable.

    Note: If time does not permit charging the battery or if charging equipment is not available, connect the negative battery cables and run the vehicle continuously for 20 to 30 minutes to charge the battery.

Servicing the Transmission Fluid

Transmission fluid type: Toro Hypr-oil 500

The machine is shipped with transmission fluid in the expansion tank.

  1. Run the machine for approximately 15 minutes to purge any extra air out of the transmission system.

  2. Completely raise and lower the tines 3 times to purge the air.

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

  4. Allow the engine to cool.

  5. Carefully clean the area around the front of the fill cap; it is important that no dirt or contamination enter the transmission system.

  6. Remove the cap and check the transmission-fluid level in the expansion tank (Figure 3).

    Note: The transmission-fluid level should cover the FULL COLD line molded into the side of the tank.

    g025891

    Figure 3

    1. Cap
    2. Filler neck (expansion tank)
    3. FULL COLD line

  7. If necessary, add the specified transmission fluid until the level reaches the FULL COLD line located on the reservoir tank.

    Note: If the fluid is at ambient-air temperature, about 24°C (75° F), fill only to the FULL COLD level.

  8. Install the reservoir cap and tighten it until snug.

    Important: Do not overtighten the reservoir cap.

  9. Start the engine and raise and lower the tines. Lower the tines to the ground and refill the reservoir to the FULL COLD line.

  10. Check the fluid level again; repeat steps 10 through 13 until the level does not decrease.

Servicing the Auxiliary Hydraulic Fluid

Hydraulic fluid type: AW-32 hydro fluid

Note: The machine is shipped with hydraulic fluid in the reservoir.

  1. Run the machine for approximately 15 minutes to purge any extra air out of the hydraulic system.

  2. Completely raise and lower the tines 3 times to purge the air.

  3. Shut off the engine, remove the key and allow the machine to cool.

  4. Remove the cap and check the hydraulic-fluid level in the reservoir.

    Note: The hydraulic-fluid level should cover the word FULL COLD that is embossed into the baffle of the reservoir.

  5. If necessary, add the specified hydraulic fluid to the reservoir until the fluid covers the FULL COLD fluid level on the baffle.

    Note: If the fluid is at ambient-air temperature, about 24°C (75° F), fill only to the FULL COLD level.

  6. Install the hydraulic reservoir cap and tighten it until snug.

    Note: Do not overtighten the reservoir cap.

Product Overview

g232039

Figure 4

  1. Platform
  2. Parking brake lever
  3. Engine controls
  4. Motion-control levers
  5. Fuel cap
g223341

Figure 5

  1. Tine ground engagement foot switch
  2. Operator weight adjustment control
  3. Multi-function switch
  4. Left motion-control lever
  5. Front reference bar
  6. Throttle
  7. Choke
  8. Right motion-control lever
  9. Hour meter
  10. Parking-brake handle
  11. Ignition switch

Motion-Control Levers

The motion-control levers are located on each side of the top console and control the forward and reverse motion of the machine.

Move the levers forward or backward to control the drive wheel on the same side forward or reverse respectively. The wheel speed is proportional to the amount you move the lever.

Important: The tines rotate when the motion-control levers are moved out of the NEUTRAL position.

g223330

Figure 6

  1. Left motion-control lever
  2. Right motion-control lever
  3. Front reference bar
  4. Front of machine
  5. Forward
  6. Neutral
  7. Reverse
  8. Rear reference bar

Throttle Lever

The throttle lever (Figure 5) is located on the control console (red lever).

Use the throttle lever to control engine speed. Move the throttle lever forward to increase engine speed; moving the throttle lever rearward to decrease the engine speed.

Note: Move the throttle lever forward into the detent for full throttle.

Choke Control

The choke control (Figure 5) is located on the control console.

Use the choke control to aid in starting a cold engine. Pull out the choke control to set the choke to the ON position; press in the choke lever to reduce the choke.

Note: Pull out the choke control to set the choke to the ON position.

Note: Do not run a warm engine with the choke in the ON position.

Key Switch

The key switch is located on the right side of the control console (Figure 5).

Use the key switch to start and shut off the engine. The switch has 3 positions: OFF, ON, and START (Figure 7).

g008610

Figure 7

  1. OFF
  2. ON
  3. START

Parking-Brake Handle

The parking-brake handle is located on the control console, to the right of the key switch (Figure 3).

Note: The brake handle engages a parking brake in each of the transmissions.

  • To engage the parking brake, pull the handle back toward you.

  • To release the parking brake, push the handle all the way forward away from you.

When parking on a slope, chock or block the wheels in addition to engaging the parking brake. Tie down the machine and engage the parking brake when transporting the machine.

Fuel-Shutoff Lever

Located under the air cleaner on the front right side.

The fuel-shutoff lever is used to shut off the fuel when you will not use the machine for a few days, while you are transporting the machine to and from the jobsite, and when the machine is parked inside a building.

Rotate the handle counterclockwise to open; rotate clockwise to 90° to close.

Drive-Wheel Release Valves

Warning

Hands may become entangled in the rotating drive components between the engine and transaxles, which could result in serious injury or death.

Shut off the engine, remove the key, and allow all the moving parts to stop before accessing the drive-wheel release valves.

Warning

The engine and hydraulic drive units can become very hot. Touching a hot engine or hydraulic drive units can cause severe burns.

Allow the engine and hydraulic drive units to cool completely before accessing the drive-wheel release valves.

Located on the left and right sides above the transaxles.

During normal operating conditions, the washer on the lever is positioned outside the slots. If you must push the machine by hand, the valves must be in the released position (see Figure 8).

g211754

Figure 8

  1. Lever position for operating the machine
  2. Washer outside of slot
  3. Lever position to push the machine
  4. Washer inside slot

To release the drive wheels, move the lever to the larger opening of the slot, push it in until the washer is inside the frame, then move the lever back to the narrow portion of the slot. Repeat this on each side of the machine.

Release the parking brake. You can now push the machine by hand.

Do not tow the machine.

To reset the drive system back to the operating position, move the lever to the larger opening of the slot, pull outward until the washer is outside of the frame, then move the lever back to the narrow portion of the slot on each side of the machine.

Operator Weight Adjustment Control

Located on the left side of the control console (see Figure 5).

This feature takes your weight into account to achieve the correct aerating pressure and plug length and to maximize lateral stability. Rotating the control counterclockwise decreases the pressure; rotating it clockwise increases it. Refer to Adjusting the Operator Weight Control Setting.

Note: Each operator must adjust the system pressure so that the drive tires lightly touch the ground.

Important: Keep the drive tires on the ground at all times to maximize lateral machine stability.

Tine-Pressure Control

The tine-pressure control is located on the left side of the control console (Figure 5).

Use the tine-pressure control to adjust the downward pressure on the tines and core depth. Rotate the control counterclockwise to decrease the pressure and the length of the aeration plug; rotate it clockwise to increase the pressure and increase the length of the aeration plug.

Tine Ground Engagement Foot Switch

Keep your hands and feet away from the tines. Ensure that the tines area is clear of any obstructions before lowering it.

The switch is located on the operator platform.

To lower the tines into the ground, stand on the tine ground engagement switch. To raise the tines, remove your foot from the switch.

This switch can be locked out (disabled) with the multi-function switch.

  • Tap and hold the bottom of the switch to override and lock out (disable) the foot switch. The LED illuminates in the hour meter/tine engagement display. Use this feature when transporting the aerator.

  • To unlock, tap and hold the top of the multi-function switch until the LED light disappears.

Note: The lockout feature is engaged each time the engine is switched off.

Multi-Function Switch

The multi-function switch is located to the left of the hour meter/tine engagement display.

This switch allows the operator to do the following:

  • increase or decrease the depth of aeration plug

  • lock or unlock the tine depth setting

  • reset maintenance service reminder screens

Smart Controller/Electronic Depth Control

Hour Meter/Tine Engagement Display

Located to the left of the ignition switch on the control console.

  • The hour meter monitors and displays engine hours.

    g211730

    Figure 9

    Hour Meter Display

    1. LCD Indicators/Information screen
    2. Hour display
    3. LED status light

    Hours are displayed when the key is off or when the machine is running. Hours are not displayed when the machine is aerating.

    Note: The LCD indicator appears in the parking brake setting when it meets the safe to start mode (parking brake engaged).

  • The tine engagement display monitors and displays the electronic tine depth setting.

g211731

Figure 10

Tine Engagement Display

  1. LCD Indicators/Information screen
  2. Tine depth status bar
  3. Tine depth setting indicator
  4. LED status light

There are two ways to activate the display.

  1. Tap the multi-function switch either up or down to display the tine engagement meter.

  2. Step on the tine ground engagement foot switch.

A higher number on the status bar increases the length of the aeration plug and a lower number decreases it.

Note: If the plug length is not the desired length, you may need to adjust the machine to accommodate for your weight; refer to the Operator Weight Adjustment Control.

LED Status Lights

Located on the right side of the hour meter/tine engagement display.

The LED is multi-colored to indicate the system status and is located on the right side of the panel.

  • Solid Green — indicates normal operating activity

  • Blinking Red — indicates that a fault is active

  • Solid Red — indicates that maintenance is required

Screen Icons

The information screen uses the following icons:

Graphic

Aerating Hours

Graphic

Parking brake

Graphic

Battery Voltage

Graphic

Engine Oil Maintenance

Graphic

Hour Meter

Graphic

Transmission Oil Maintenance

Graphic

Voltage Error

Graphic

Valve Solenoid Error

Graphic

Valve Solenoid Connection Error

 

Start-up Screens

When the key is switched from OFF to RUN position, the following screens display for 2 seconds. The LED status light changes from red to orange to green.

The first screen displays the firmware version.

g212116

Figure 11

The second screen displays the aeration hours to the tenth of an hour.

g212114

Figure 12

The third screen displays the battery voltage to the tenth of a volt.

g212115

Figure 13

The fourth screen displays the hours until the engine oil maintenance is required. If the service is not performed, the time is recorded as negative hours to indicate the number of hours past due for the service (up to -500 hours).

g212117

Figure 14

The final screen displayed is the hours until transmission oil maintenance is required. If the service is not performed, the time is recorded as negative hours to indicate the number of hours past due for the service (up to -500 hours).

g212118

Figure 15

Maintenance Reminder Screens

The hour meter displays the number of engine hours until either the engine oil or transmission oil maintenance is due. The reminder flashes and the LED displays a steady red light.

An alert occurs when the hour counter reaches zero. If the service is not performed, the time is recorded as negative hours to indicate the number of hours past due for the service (up to -500 hours) (reference Figure 16 and Figure 17). The hour meter switches between the default screen and the active alert screen. If more than 1 alert is active, the display cycles between the alerts in the order that they occurred before cycling back to the default screen.

The alerts only display when the default screen has been active for 2 seconds; however if the key is moved to the START position, the alerts occur immediately. When the machine is aerating, the alert screen does not display but the LED status light remains a steady red.

There are two maintenance reminders:

  1. Service Engine

    The engine-oil service reminder counts down from the initial break-in service interval of 5 engine hours and then counts down from 100 hours for each service interval thereafter.

    g030960

    Figure 16

  2. Service Transmission

    The transmission oil maintenance reminder counts down from the initial break-in service interval of 250 engine hours and then counts down from 500 hours for each service interval thereafter.

    g030965

    Figure 17

You can reset maintenance reminders manually.

  • You can enter the engine service reminder reset mode by cycling the key switch between the RUN position and the OFF position 4 times within 8 seconds with the parking brake engaged.

    When the Service Engine screen displays and flashes, you can reset the engine-oil maintenance reminder by pressing the down on the multi-function switch. Once the reminder resets, the screen exits the Service Engine screen and returns to the default screen.

    You can exit the Service Engine screen at any time by turning the key to either the OFF or the START position.

  • You can enter the transmission-oil maintenance reminder reset mode by cycling the key switch from the RUN position to the OFF position and back to the RUN position, 6 times within 8 seconds, with the parking brake engaged.

    When the Service Transmission screen displays and flashes, you can reset the transmission-oil maintenance reminder by pressing down on the multi-function switch.

    You can exit the Service Engine screen at any time by turning the key to either the OFF or the START position.

Alerts and Error Messages

The system is capable of displaying the following errors:

  • Voltage Error

    This occurs when the Key-Run voltage is less than 12.3 or greater than 16, a voltage error flashes. The LED flashes a red light.

    g030966

    Figure 18

  • Valve Solenoid Open Error

    If either 1 of the 2 valve solenoids disconnect, the number 6 displays in the lower left corner of the screen. The LED flashes a red light.

    g030971

    Figure 19

    1. Number 6 displays

  • Valve Solenoid Overcurrent Error

    If an overcurrent event occurs, the number 2 displays in the lower left corner of the screen. Check the valve solenoid and inspect it for damage and wear. The LED flashes a red light.

    g030972

    Figure 20

    1. Number 2 displays

  • Valve Solenoid Connection Error

    The system displays the Valve Solenoid Connection Error alert and the LED flashes red when the system detects an error. If the valve solenoids are connected incorrectly (i.e. the connector for the relief valve is connected to the other valve solenoid) the tines do not operate until the fault is corrected.

    g030977

    Figure 21

Height129.5 cm (51 inches)
Length173.2 cm (68.6 inches)
Width90.2 cm (35.5 inches)
RPM (Full Speed)3800 100 RPM (no load)
Aeration width61 cm (24 inches)
Coring range1.3 to 12.7 cm (0.5 to 5 inches)
Holes per square foot4.6
Tines36
Weight388 kg (856 lb)

A selection of Exmark approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor.

To best protect your investment and maintain optimal performance of your Exmark equipment, count on Toro genuine parts. When it comes to reliability, Exmark delivers replacement parts designed to the exact engineering specification of our equipment. For peace of mind, insist on Exmark genuine parts.

Operation

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

Open the Fuel-Shutoff Valve

Rotate the lever counterclockwise to open.

Starting the Engine

  1. Leave the motion-control levers in neutral and engage the parking brake.

  2. Place the throttle midway between the SLOW and FAST positions.

  3. On a cold engine, push the choke lever forward into the ON position. On a warm engine, leave the choke in the OFF position.

  4. Turn ignition switch to the START position. Release the switch as soon as the engine starts.

    Important: Do not crank the engine continuously for more than 10 seconds at a time. If the engine does not start, allow a 60-second cool-down period between starting attempts. Failure to follow these guidelines can burn out the starter motor

  5. If the choke is in the ON position, gradually return choke to the OFF position as the engine warms up.

Lowering the Tines

Danger

The rotating tines under the engine deck are dangerous. Tine contact can cause serious injury or kill you.

Do not put hands or feet under the machine when the engine is running.

  1. Set throttle to the FAST position.

  2. Tap the switch once to display the tine engagement depth setting; adjust if necessary.

  3. Lower the tines by pressing on the tine ground engagement foot switch.

  4. Stand on the switch and move the motion-control levers forward to aerate.

    Note: You can adjust the foot rocker bar, located behind the tine ground engagement foot switch for your comfort. To adjust it, loosen the foot rocker bar hardware, slide the bar forward or rearward, and tighten the hardware.

Changing the Tine Depth Setting

  1. Stop the machine and engage the parking brake.

  2. Press the multi-function switch to activate the display.

  3. Cycle the key switch between the RUN position and the OFF position 5 times. The tine depth setting indicator (triangle) on the display will begin to flash.

  4. Tap the multi-function switch up or down to set the aeration depth. Tap the bottom of the multi-function switch to lower the tine depth to remove a longer plug. Tap the top of the switch to raise the tine depth to remove a shorter plug.

Note: The ideal plug depth is 2.5 to 3 inches (6.4 to 7.6 cm). Adjust the controls to adapt to the soil conditions.

Locking/Unlocking the Tine Depth Setting

The settings can be locked or left unlocked.

  • To lock the setting, Turn the ignition key from the OFF to the ON position 5 times. The LED status light illuminates in the tine engagement display (reference Figure 10).

  • To unlock the setting, press and hold the bottom of the switch for 1 second. The LED status light turns off.

Switch the key to the OFF or START position when you are finished.

Adjusting the Operator Weight Control Setting

  1. With the tines raised, drive the aerator to a hard, flat turf surface and stop the aerator, but leave the engine running.

  2. Press the tine ground engagement foot switch to lower the tines.

    • If the machine raises and the ground tires are no longer touching, rotate the operator weight adjustment control counterclockwise to lower the machine until the tires touch the ground.

    • If the tines are not touching the ground, rotate the operator weight adjustment control clockwise until the tines lower and touch the ground (but not raise the machine).

    Important: Keep the drive tires on the ground at all times to maximize lateral machine stability.

  3. Release the tine ground engagement foot switch to raise the tines.

Raising the Tines

  1. Remove your foot from the tine ground engagement foot switch

  2. Turn the ignition key from the ON position to the OFF position.

Important: The tines are rotating when the motion-control lever is moved out of the neutral position.

Shutting Off the Engine

  1. Move the motion-control levers back to the neutral position and bring the machine to a full stop.

  2. Lift your foot off of the tine ground engagement foot switch control to raise the tines.

  3. Activate the tine engagement foot switch lockout.

  4. Place the throttle midway between the SLOW and FAST positions.

  5. Allow the engine to run for a minimum of 15 seconds, then turn the ignition switch to the OFF position to shut off the engine.

  6. Engage the parking brake.

  7. Remove the key to prevent children or other unauthorized persons from starting the engine.

  8. Close the fuel-shutoff valve when you will not use the machine for a few days, when you are transporting the machine, or when the machine is parked inside a building.

Checking the Safety Interlock

Important: Ensure that the operator safety mechanisms be connected and are in proper operating condition prior to use.

Note: If the machine does not pass any of these tests, Do not operate the machine. Contact your authorized Toro distributor.

Checking the Normal Engine Starting Circuit

System
 Parking BrakeOutcome
State of SystemEngagedStarter should crank
GraphicGraphic

Check Engine Starting Circuit Chart

Note: In the Check Engine Starting Circuit Chart, the state of system item that is bold is being checked.

System
 Parking BrakeOutcome
State of SystemDisengagedStarter should not crank
GraphicGraphic

Driving the Machine

Caution

Machine can spin very rapidly by positioning one lever too much ahead of the other. Operator may lose control of the machine, which may cause damage to the machine or injury.

  • Use caution when making turns.

  • Slow the machine down before making sharp turns.

Important: To begin movement (forward or backward), the brake lever must be disengaged (pushed forward) before the motion-control levers can be moved.

g223330

Figure 22

  1. Left motion-control lever
  2. Right motion-control lever
  3. Front reference bar
  4. Front of machine
  5. Forward
  6. Neutral
  7. Reverse
  8. Rear reference bar

Driving Forward

  1. Ensure that the motion-control levers are in the neutral position.

  2. Release the parking brake.

  3. To move forward in a straight line, move both levers forward with equal pressure.

    g016672

    Figure 23

    To turn left or right, pull the motion-control lever back toward neutral in the desired turn direction. The tines can be in the down position when making gradual turns.

    To make zero-degree turns, lift your foot off the tine engagement foot switch control to raise the tines. The head will raise in 1 second.

    Important: Do not make a zero-degree turn when the tines are down as turf tearing will result.

    Important: Do not drive in reverse when the tines are down as turf tearing will occur.

    The machine moves faster the farther the motion-control levers are moved from the neutral position.

  4. To stop, position both motion-control levers in the neutral operating position.

Driving in Reverse

  1. Move the motion-control levers to the neutral operating position.

  2. To move rearward in a straight line, slowly move both levers rearward with equal pressure.

    g016673

    Figure 24

    To turn left or right, release pressure on the motion-control lever toward the desired turn direction.

    To make zero turns, lift your foot off of the tine ground engagement foot switch to raise the tines. The head will raise in half second.

    Important: Do not make a zero turn when the tines are in the down position.

  3. To stop, position both motion-control levers in the neutral operating position.

Transporting the Machine

Use a heavy-duty trailer or truck to transport the machine. The tines can be locked in the up position by tapping and holding the multi-function switch in the down position until the LED indicator appears on the hour meter/tine engagement display. Engage the parking brake and block the wheels. Ensure that the fuel-shutoff valve is closed. Securely fasten the machine to the trailer or truck with straps, chains, cable, or ropes. If possible, both front and rear straps should be directed down and outward from the machine. Use only the 4 designated tie-down locations on the machine—2 on the left side and 2 on the right (see Figure 25). Ensure that the trailer or truck has all the necessary lighting and marking as required by law. Secure a trailer with a safety chain.

g212139

Figure 25

Left side shown

  1. Tie-down location

Caution

This machine does not have proper turn signals, lights, reflective markings, or a slow-moving-vehicle emblem. Driving on a street or roadway without such equipment is dangerous and can lead to accidents causing personal injury. Driving on a street or roadway without such equipment may also be a violation of state laws and the operator may be subject to traffic tickets and/or fines.

Do not drive the machine on a public street or roadway.

Warning

Loading a machine on a trailer or truck increases the possibility of backward tip-over. Backward tip-over could cause serious injury or death.

  • Use extreme caution when operating a machine on a ramp.

  • Use only a single, full-width ramp; Do not use individual ramps for each side of the machine.

  • If individual ramps must be used, use enough ramps to create an unbroken ramp surface wider than the machine.

  • Avoid sudden acceleration or deceleration while driving machine up or down a ramp to avoid tipping backward.

Loading the Machine

Use extreme caution when loading machines on trailers or trucks. Use a full-width ramp to extend beyond the rear tires instead of individual ramps for each side of the machine. With the platform up, a full-width ramp provides a surface to walk on behind the machine. If it is not possible to use a full-width ramp, use enough individual ramps to simulate a full-width continuous ramp.

A steep ramp angle may cause components to get caught as the machine moves from ramp to trailer or truck. Steeper angles may also cause the machine to tip backward. If loading on or near a slope, position the trailer or truck so that it is on the down side of the slope and the ramps extends up the slope. This minimizes the ramp angle. The trailer or truck should be as level as possible.

Important: Do not attempt to turn the machine while on the ramp, you may lose control and drive off the side.

Avoid sudden acceleration when driving up a ramp and sudden deceleration when backing down a ramp. Both maneuvers can cause the machine to tip backward.

Adding Fuel

Fuel-tank capacity: 7 L (1.9 US gallons)

  • For best results, use only clean, fresh (less than 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method).

  • ETHANOL: Gasoline with up to 10% ethanol (gasohol) or 15% MTBE (methyl tertiary butyl ether) by volume is acceptable. Ethanol and MTBE are not the same. Gasoline with 15% ethanol (E15) by volume is not approved for use. Never use gasoline that contains more than 10% ethanol by volume, such as E15 (contains 15% ethanol), E20 (contains 20% ethanol), or E85 (contains up to 85% ethanol). Using unapproved gasoline may cause performance problems and/or engine damage which may not be covered under warranty.

  • Do not use gasoline containing methanol.

  • Do not store fuel either in the fuel tank or fuel containers over the winter unless you use a fuel stabilizer.

  • Do not add oil to gasoline.

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, and when the engine is cold. Wipe up any fuel that spills.

  • Do not fill the fuel tank completely full. Add fuel to the fuel tank until the level is 6 to 13 mm (1/4 to 1/2 inch) below the bottom of the filler neck. This empty space in the tank allows the fuel to expand.

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

  • Store fuel in an approved fuel container and keep it out of the reach of children.

  • Never buy more than a 30-day supply of fuel.

Danger

In certain conditions during fueling, static electricity can be released, causing a spark, which can ignite the fuel vapors. A fire or explosion from fuel can burn you and others and can damage property.

  • Always place fuel containers on the ground away from your vehicle before filling.

  • Do not fill fuel containers inside a vehicle or on a truck or trailer bed, because interior carpets or plastic truck bed liners may insulate the container and slow the loss of any static charge.

  • When practical, remove fuel-powered equipment from the truck or trailer and refuel the equipment with its wheels on the ground.

  • If this is not possible, then refuel such equipment on a truck or trailer from a portable container rather than from a fuel-dispenser nozzle.

  • If you must use a fuel-dispenser nozzle, keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete.

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 face away from the nozzle and fuel tank or conditioner bottle opening.

  • Avoid contact with skin; wash off spills with soap and water.

Using Stabilizer/Conditioner

Use a fuel stabilizer/conditioner in the machine to provide the following benefits:

  • Keep fuel fresh during storage of 90 days or less. For longer storage, drain the fuel tank.

  • Clean the engine while it runs

  • Eliminate gum-like varnish buildup in the fuel system, which causes hard starting

    Important: Do not use fuel additives containing methanol or ethanol.

    Add the correct amount of fuel stabilizer/conditioner to the fuel.

    Note: A fuel stabilizer/conditioner is most effective when mixed with fresh fuel. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times.

Fueling the Machine

  1. Clean around the fuel-tank cap.

  2. Remove the cap from the tank.

  3. Fill the fuel tank with fuel to within 6 to 13 mm (1/4 to 1/2 inch) from the top of the tank. Do not fill into the filler neck.

    Important: Do not fill the tank more than 6 mm (1/4 inch) from the top of the tank because the fuel must have room to expand.

  4. Install the fuel-tank cap and wipe up any spilled fuel.

Adjusting the Front Reference/Speed Control Bar

Adjust the front reference/speed control bar for desired maximum forward speed.

  1. Shut off the engine, engage the parking brake, and move the motion control levers to the neutral position.

  2. Loosen the bolts on both sides of the control tower by loosening the two nuts on each side (four total) of the console (see Figure 26).

    g231460

    Figure 26

    1. Two nuts
    2. Front reference/speed control bar

  3. Move the bar forward to obtain the fastest speed.

    Move the bar backward to obtain the slowest speed.

  4. On both sides, tighten the nuts and bolts.

Important: Make sure the nuts and bolts are tight so the front reference/speed control bar does not move during operation.

Maintenance

Warning

While you are maintaining or adjusting the machine, someone could start the engine. Accidentally starting the engine could seriously injure you or other bystanders.

Remove the key from the key switch, engage parking brake, and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).

Warning

The engine can become very hot. Touching a hot engine can cause severe burns.

Allow the engine to cool completely before service or making repairs around the engine area.

Recommended Maintenance Schedule(s)

Maintenance Service IntervalMaintenance Procedure
After the first 5 operating hours
  • Change the engine oil.
  • Check the transmission output shaft nut torque specification.
    		•
    After the first 100 operating hours
  • Change the auxiliary hydraulic reservoir filter and fluid.
  • Change the hydraulic transmission filter and fluid.
    		•
    Before each use or daily
  • Lubricate the chains.
  • Check the engine-oil level.
  • Check the condition and tension of the chains.
  • Check the condition of the sprockets.
  • Check the tines.
  • Clean the engine and the exhaust system area(more often in dry or dirty conditions).
  • Clean the grass and debris buildup from the machine.
    		•
    Every 25 hours
  • Grease the front wheel bearings.
  • Grease tine shaft bearings.
  • Grease hydro output shaft flanged bearings.
    		•
    Every 50 hours
  • Check spark arrester (if equipped).
  • Check the pressure in the tires.
  • Check the condition and tension of the belts.
  • Check the transmission fluid level.
    		•
    Every 80 hours
  • Remove the engine shrouds and clean the cooling fins.
    		•
    Every 100 hours
  • Change the engine oil.(May need more often under severe conditions.)
    		•
    Every 160 hours
  • Check, clean and gap the spark plug.
    		•
    Every 200 hours
  • Change the engine-oil filter(more often in extremely dusty or sandy conditions).
    		•
    Every 250 hours
  • Replace the primary air cleaner element — check secondary air cleaner element; replace if dirty(more often under severe conditions. See the engine owner’s manual for additional information).
  • Change the auxiliary hydraulic reservoir filter and fluid.thereafter
  • Change the hydraulic transmission filter and fluid.thereafter
    • Every 500 hours
  • Replace the secondary air cleaner element(more often under severe conditions. See the Engine manual for additional information).
    		•
    Monthly
  • Check the battery charge.
    		•
    Yearly
  • Grease belt idler pivot.
  • Grease front caster hubs.
  • Check the torque of the wheel hub bolts.
  • Check the torque on the wheel lug nuts.
  • Check the torque of the transmission output shaft nut.
    		•
    Yearly or before storage
  • Touch up areas with chipped paint.
    		•

    Pre-Maintenance Procedures

    Caution

    Raising the machine for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the machine to fall, which could cause injury.

    Do not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

    Preparing for Maintenance

    Perform the following before servicing, cleaning, or making any adjustments to the machine.

    1. Park the machine on a level surface and engage the parking brake.

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

    Lubrication

    Lubricating the Chains

    Important: Do not lubricate the chains with penetrating oil or solvents. Use an oil or chain lubricant.

    1. Shut off the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake.

    2. Lift the rear of the machine and support using jack stands or equivalent support.

      Caution

      Raising the machine for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the machine to fall, which could cause injury.

      Do not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

    3. Start the engine and move throttle control ahead to 1/2 throttle position. Disengage the parking brake.

      Warning

      The engine must be running and the drive wheels must be turning so that adjustments can be performed. Contact with moving parts or hot surfaces may cause personal injury.

      Keep your fingers, hands, and clothing clear of rotating components and hot surfaces.

    4. With the engine running, slowly move the motion-control levers forward and lubricate all 4 chains.

    5. Check the condition and tension of the chains; refer to Checking the Condition of the Chains.

    Lubricating the Grease Fittings

    Note: See the chart below for service intervals.

    1. Shut off the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake.

    2. Lubricate the fittings with NLGI grade No. 2 multi-purpose grease.

      Refer to the following chart for fitting locations and lubrication schedule.

      Lubrication Chart
      Fitting LocationsInitial Pumps Number of Places Service Interval
      1. Front Wheel Caster Hubs12Yearly
      2. Tine Shaft Bearings1425 hours
      3. Belt Idler Pivot11Yearly
      g230394

      Figure 27

      1. Front wheel caster hubs
      2. Tine shaft bearings
      3. Belt idler pivot

    Engine Maintenance

    Service Air Cleaner

    1. Shut off the engine, engage parking brake, wait for all moving parts to stop, and remove the key.

    2. See the engine owner's manual for maintenance instructions.

    Servicing the Engine Oil

    Oil Type: Detergent oil (API service SJ or later)

    Engine Oil Capacity: 1.7 L (1.8 US qt) without the filter; 1.5 L (1.6 US qt) with the filter.

    Oil viscosity: Refer to the table below.

    g004216

    Figure 28

    Checking the Engine-Oil Level

    Oil Type: Detergent oil (API service SJ or higher)

    Oil viscosity: Refer to the table below.

    g004216

    Figure 29

    Important: Do not operate the engine with the oil level below the Low (or Add) mark on the dipstick, or over the Full mark.

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Allow the engine to cool.

    3. Check the engine-oil level as shown in Figure 30.

      g025898

      Figure 30

    4. If the oil level is low, wipe off the area around the oil fill cap, remove cap and add the specified oil until the oil level is at the Full mark on the dipstick.

      Note: Do not overfill the engine with oil.

    Changing the Engine Oil

    Note: Dispose of the used oil at a recycling center.

    1. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely.

    2. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    3. Change the engine oil as shown in Figure 31.

      Note: Torque drain plug to 18 N∙m (13 ft-lb).

      g025979

      Figure 31

    4. Slowly pour approximately 80% of the specified oil into the filler tube, and slowly add the additional oil to bring it to the Full mark (Figure 32).

      g026005

      Figure 32

    5. Start the engine and drive to a flat area.

    6. Check the engine-oil level.

    Changing the Engine-Oil Filter

    1. Drain the oil from the engine; refer to Changing the Engine Oil.

    2. Place a rag under the oil filter to soak up any spilled oil.

      Important: Spilled oil may drain under the engine and onto the clutch. Oil spilled on the clutch may damage the clutch, cause the blades to stop slowly when the clutch is in the OFF position, and cause the clutch to slip when the clutch is switched to the ON position. Wipe up any spilled oil.

    3. Change the engine-oil filter (Figure 33).

      g026006

      Figure 33

      Note: Ensure that the oil-filter gasket touches the engine, and then turn the filter an extra 3/4 turn.

    4. Fill the crankcase with the specified type of new oil; refer to Figure 28.

    Servicing the Spark Plug

    Type for all Engines: NGK BPR6ES or equivalent

    Air Gap: 0.75 mm (0.03 inch)

    Ensure that the air gap between the center and side electrodes is correct before installing the spark plug.

    Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary.

    Removing the Spark Plug

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Remove the spark plug as shown in Figure 34.

      g027478

      Figure 34

    Checking the Spark Plug

    Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has a black coating, worn electrodes, an oily film, or cracks.

    If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means the air cleaner is dirty.

    Set the gap to 0.75 mm (0.03 inch).

    g206628

    Figure 35

    Installing the Spark Plug

    Tighten the spark plug(s) to 22 N∙m (16 ft-lb).

    g027735

    Figure 36

    Checking the Spark Arrester

    Machines with a Spark Arrester Only

    Warning

    Hot exhaust system components may ignite fuel vapors even after the engine is shut off. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage.

    Do not refuel or run engine unless a spark arrester is installed.

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Allow the muffler to cool.

    3. Check the spark arrester for breaks in the screen or welds.

      Note: Replace the spark arrester if it is worn or damaged.

    4. If you see that the screen is plugged, perform the following:

      1. Remove the spark arrester.

      2. Shake loose the particles from the arrester and clean screen with a wire brush.

        Note: Soak the arrester screen in solvent if necessary.

      3. Install spark arrester onto exhaust outlet.

    Electrical System Maintenance

    Jump Starting the Machine

    1. Check the weak battery for terminal corrosion (white, green, or blue “snow) and clean it prior to jump starting. Clean and tighten connections as necessary.

      Caution

      Corrosion or loose connections can cause unwanted electrical voltage spikes at anytime during the jump-starting procedure.

      Do not attempt to jump start with loose or corroded battery terminals or damage to the engine may occur.

      Danger

      Jump starting a weak battery that is cracked, frozen, has low electrolyte level, or an open/shorted battery cell, can cause an explosion resulting in serious personal injury.

      Do not jump start a weak battery if these conditions exist.

    2. Ensure that the booster is a good and fully charged lead acid battery at 12.6 V or greater. Use properly sized jumper cables (4 to 6 AWG) with short lengths to reduce voltage drop between systems. Ensure that the cables are color coded or labeled for the correct polarity.

      Caution

      Connecting the jumper cables incorrectly (wrong polarity) can immediately damage the electrical system.

      Be certain of the battery terminal polarity and jumper cable polarity when hooking up the batteries.

      Warning

      Batteries contain acid and produce explosive gases.

      • Shield your eyes and face from the batteries at all times.

      • Do not lean over the batteries.

      Note: Ensure that the vent caps are tight and level. Place a damp cloth, if available, over any vent caps on both batteries. Ensure that the vehicles do not touch and that both electrical systems are off and at the same rated system voltage. These instructions are for negative ground systems only.

    3. Connect the positive (+) cable to the positive (+) terminal of the discharged battery that is wired to the starter or solenoid as shown in .

      g012785

      Figure 37

      1. Positive (+) cable on discharged battery
      2. Positive (+) cable on booster battery
      3. Negative (–) cable on the booster battery
      4. Negative (–) cable on the engine block
      5. Booster battery
      6. Discharged battery
      7. Engine block

    4. Connect the other end of the positive cable to the positive terminal of the booster battery.

    5. Connect the black negative (–) cable to the other terminal (negative) of the booster battery.

    6. Make the final connection on the engine block of the stalled vehicle (not to the negative post) away from the battery. Stand back.

    7. Start the vehicle and remove the cables in the reverse order of connection (the engine block (black) connection is the first to disconnect).

    Checking the Battery Charge

    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.

    Allowing batteries to stand for an extended period of time without recharging them results in reduced performance and service life. To preserve optimum battery performance and life, charge batteries in storage when the open circuit voltage drops to 12.4 V.

    Note: To prevent damage due to freezing, the battery should be fully charged before putting away for winter storage.

    Check the voltage of the battery with a digital voltmeter. Locate the voltage reading of the battery in the table and charge the battery for the recommended time interval to bring the charge up to a full charge of 12.6 V or greater.

    Important: Ensure that the negative battery cable is disconnected and the battery charger used for charging the battery has an output of 16 V and 7 A or less to avoid damaging the battery (see chart for recommended charger settings).

    Voltage ReadingPercent ChargeMaximum Charger SettingsCharging Interval
    12.6 or greater100%16 V/7 ANo Charging Required
    12.4 – 12.675 to 100%16 V/7 A30 Minutes
    12.2 – 12.450 to 75%16 V/7 A1 Hour
    12.0–12.225 to 50%14.4 V/4 A2 Hours
    11.7–12.00 to 25%14.4 V/4 A3 Hours
    11.7 or less0%14.4 V/2 A6 Hours or More

    Drive System Maintenance

    Caster Pivot Bearings Pre-Load Adjustment

    Remove dust cap from caster and tighten nyloc nut until washers are flat and back off 1/4 of a turn to properly set the pre-load on the bearings. If disassembled, ensure that the spring disc washers are installed as shown in Figure 38.

    g006131

    Figure 38

    1. Spring disc washers

    Checking the Air Pressure in the Tires

    Note: The semi-pneumatic caster tires do not need to be inflated.

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Check the pressure of the drive tires.

    3. Inflate the drive tires to 152 to 165 kPa (22 to 24 psi).

    Checking the Wheel Hub Bolts

    Torque the wheel hub bolts (Figure 39) to 37 to 45 N∙m (27 to 33 ft-lb).

    Note: Do not use anti-seize compound on the wheel hub.

    g026029

    Figure 39

    1. Lug nut
    2. Hub bolt

    Checking the Torque of the Wheel Lug Nuts

    Torque the wheel lug nuts (Figure 39) to 115 to 142 N∙m (85 to 105 ft-lb).

    Checking the Condition of the Chains

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Check the chains on both sides of the machine for proper tension. The chains should be able to move up and down 1/4 to 1/2 inch (6 to 12 mm).

    3. If chains pop or snap refer to Adjusting the Drive Wheel Chain Tension and Adjusting the Tine Drive Chain.

    Checking the Sprocket Condition

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Inspect sprockets for wear and replace as required.

    Maintaining the Chain

    Adjusting the Drive Wheel Chain Tension

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Lift the rear of the machine and support using jack stands or equivalent support.

    3. Check the chains on each side of the idler sprocket, on both sides of the machine, for proper tension. The chains should be able to move up and down 1/4 to 1/2 inch (6 to 12 mm).

    4. To adjust the chain tension, loosen the idler bolt and push up on the sprocket to tighten the chain.

      Important: Do not overtighten the chain. Significant chain wear can occur and will shorten the life of an overtightened chain.

    5. Check the chain tension and tighten the idler bolt.

    Checking the Torque of the Transmission Output Shaft Nut

    Torque the nuts on the transmission output tapered shafts to 285 to 353 N∙m (210 to 260 ft-lb).

    Adjusting the Motion Control Linkage

    1. Refer to Preparing for Maintenance.

    2. Push the control levers all the way forward to the front reference bar; If either of the control levers contact the reference bar do the following:

      1. Allow the control levers to return to neutral and loosen the 2 jam nuts on the hex adjustment linkage.

        Note: One jam nut is a right-hand thread and the other is left-hand.

      2. Turn the hex adjustment linkage until there is 1/8 to 1/4 inch (3 to 6 mm) gap between the control lever and the front reference bar.

      3. Tighten the jam nuts.

      4. Proceed with step 3.

      g231567

      Figure 40

      1. Hex adjustment linkage jam nut

    3. Allow the control levers to return to neutral. Turn the left hex adjustment link until the motion control levers are approximately even with each other.

    4. Repeat steps 2 and 3 for the other motion control linkage.

    Adjusting the Motion Control Tracking

    If the machine travels or pulls to one side when the motion control levers are in the full forward position, adjust the tracking.

    1. Push both control levers forward the same distance.

    2. Check if the machine pulls to one side; If it does, stop the machine and set the parking brake.

    3. Loosen the lock nuts on the right motion control linkage (as viewed from the rear of the machine. Push the right control lever forward and rotate the adjustment rod until there is 1/8 to 1/4 inch (3 to 6 mm) gap between the right control lever and the front reference bar.

    4. Place the front reference/speed control bar in the maximum forward position; refer to Adjusting the Front Reference/Speed Control Bar.

    5. Rotate the adjustment rod on the left side of the machine (Figure 41).

      g233418

      Figure 41

      1. Adjustment rod

    6. Looking down towards the adjustment rod — rotate it counterclockwise, in 1/4 turn increments, to increase speed or clockwise to decrease speed.

    7. Drive the machine and check the full forward tracking.

    8. Repeat steps 5 through 7 until desired tracking is obtained.

    Brake Maintenance

    Adjusting the Parking Brake

    If the parking brake does not hold securely, an adjustment is required.

    1. Refer to Preparing for Maintenance.

    2. Check the air pressure in the drive tires. If needed, adjust to the recommended inflation; refer to Checking the Air Pressure in the Tires.

    3. Disengage the parking brake.

    4. Loosen the cable clamp on the brake cables under the console (Figure 42).

    5. Adjust both cable conduits downward approximately 1/8 to 1/4 inch (3 to 6 mm).

      g233407

      Figure 42

      1. Cable clamp

    6. Tighten the cable clamp and engage the parking brake.

    7. Check the parking brake; repeat steps 4 through 6 if necessary.

    Belt Maintenance

    Checking the Condition and Tension Of Belts

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Check the auxiliary pump drive belt condition and tension; the belt should be snug. Refer to Adjusting the Auxiliary Pump Drive Belt.

    3. Check the condition of the transmission drive belt.

    Adjusting the Auxiliary Pump Drive Belt

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. To tighten the belt, loosen both nuts (3/8 inch) on the auxiliary pump. Slide the pump outward in slots and tighten the nuts.

    3. When properly adjusted, the belt should have 1/2 inch (1.3 cm) of deflection with 3 pounds of force on the belt midway between the auxiliary pump and engine pulley.

    Checking the Transmission Drive Belt Tension

    Note: No adjustments are required for belt tension.

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Install the new belt.

    3. Ensure that the idler arm and pulley can move freely.

    Hydraulic System Maintenance

    Maintaining the Auxiliary Hydraulic System

    Hydraulic fluid type: AW-32 hydro fluid

    Changing the Auxiliary Hydraulic Reservoir Fluid and Filter

    1. Run the machine for approximately 15 minutes to purge any extra air out of the hydraulic system.

    2. Completely raise and lower the tines 3 times to purge the air.

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

    4. Allow the engine to cool.

    5. Carefully clean the area around the front of the auxiliary pump and fill cap; also clean around the filter. It is important that no dirt or contamination enter hydraulic system.

    6. Unscrew the suction hose from the pump fitting, clean around the pump fitting, and allow oil to drain.

    7. Unscrew the filter to remove and allow oil to drain.

      Important: Apply a thin coat of oil on the surface of the rubber seal.

      Turn the filter clockwise until rubber seal contacts the filter adapter, then tighten the filter an additional 2/3 to 3/4 turn.

    8. Install the hose and torque to 37 ft-lb (50 N-m).

    9. Remove the cap and check the hydraulic-fluid level in the reservoir.

    10. If necessary, add AW-32 hydraulic fluid until the level reaches the FULL COLD line located on the reservoir tank.

      Note: If the fluid is at ambient-air temperature, about 24°C (75° F), fill only to the FULL COLD level.

    11. Install the hydraulic reservoir cap and tighten it until snug.

      Note: Do not overtighten the reservoir cap.

    12. Start the engine and raise and lower the tines. Lower the tines to the ground and refill the reservoir to the FULL COLD line.

    13. Check the fluid level again; repeat steps 10 through 13 until the level does not decrease.

    Maintaining the Transmission

    Transmission fluid type: Toro® Hypr-Oil ™ 500 or Mobil® 1 15W-50 synthetic motor oil.

    Important: Use the specified fluid. Other fluids could cause system damage.

    Checking the Transmission Fluid Level

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Allow the machine to cool.

    3. Remove the cap from the expansion tank and check the transmission-fluid level in the tank (Figure 43).

      Note: The transmission fluid level should cover the FULL COLD fill line molded into the side of the tank.

      g025891

      Figure 43

      1. Cap
      2. Filler neck (expansion tank)
      3. FULL COLD line

    4. If necessary, add the specified transmission fluid until the fluid level is at the FULL COLD fill line of the expansion tank (Figure 43).

    5. Install the expansion tank cap and tighten it until snug.

      Important: Do not overtighten the expansion tank cap.

    Changing the Hydraulic Transmission Filters and Fluid

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Place a catch pan between the transmissions.

    3. Remove the 2 drain plugs, located at the bottom of each transmission, to fully drain the oil.

    4. Locate the 2 filters under the transmissions.

    5. Carefully clean area around filters. It is important that no dirt or contamination enters the hydraulic system.

    6. Remove the filters to and allow the oil to finish draining from the drive system.

      Important: Before installing new filters, apply a thin coat of Exmark Premium Hydraulic Fluid on the surface of the filters rubber seal.

      Turn the filters clockwise until rubber seal contacts the filter adapter then tighten the filter an additional 3/4 to 1 full turn.

    7. Install the 2 drain plugs.

    8. Remove the vent plug on each transmission and fill through the expansion reservoir; when oil comes out of the vent install the plug.

      Exmark Premium Hydraulic Fluid is recommended. Refer to the chart below for an acceptable alternative:

      Hydraulic FluidChange Interval
      Exmark Premium Hydraulic Fluid (Preferred)250 hours
      Mobil 1 15W50 250 hours

      Torque the plugs to 20 Nm (180 in-lb). Continue to add Exmark Premium Hydraulic Fluid until it reaches the FULL COLD line on the expansion reservoir.

    9. Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow the drive wheels to turn freely.

      Caution

      Raising the machine for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the machine to fall, which could cause injury.

      Do not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

    10. Start the engine and move the throttle control ahead to 1/2 throttle position. Disengage the parking brake.

      Warning

      The engine must be running and the drive wheels must be turning so motion control adjustment can be performed. Contact with moving parts or hot surfaces may cause personal injury.

      Keep your fingers, hands, and clothing clear of rotating components and hot surfaces.

      1. With the engine running, slowly move the directional control in both forward and reverse directions (5 to 6 times). Check the oil level, and add oil as required after shutting off the engine.

      2. It may be necessary to repeat step 1. until all the air is completely purged from the system. When the transaxle operates at normal noise levels and moves smoothly forward and reverse at normal speeds, then the transaxle is considered purged.

    Important: Do not change the hydraulic fluid (except for what can be drained when changing filter and removing the drain plugs), unless it is felt the oil has been contaminated or been extremely hot.Changing the oil unnecessarily could damage hydraulic system by introducing contaminants into the system.

    Checking the Tines

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Raise the machine and support it with jack stands with a 460 kg (1,015 lb) capacity.

      Caution

      Raising the machine for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the machine to fall, which could cause injury.

      Do not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

    3. Remove the 2 bolts (3/8 x 1 inch) and 2 washers (3/8 inch) that secure the rear-cover panel to the chassis, and remove the panel (Figure 44).

      g026017

      Figure 44

      1. Chassis holes
      2. Washer (3/8 inch)
      3. Bolt (3/8 x 1 inch)
      4. Rear panel

    4. Remove rocks and other debris from the tines.

    5. Inspect the tines for wear and damage.

      Note: Replace any tines that are worn or damaged.

    6. Align the holes in the rear-cover panel to the holes in the chassis (Figure 44).

    7. Secure the cover panel to the chassis with the 2 bolts and 2 washers (Figure 44) that you removed in step 3, and torque the bolts to 37 to 45 N∙m (27 to 33 in-lb)

    Adjusting the Tine Drive Chain

    1. Shut off the engine, engage the parking brake, wait for all moving parts to stop, and remove the key.

    2. Lift the rear of the machine and support using jack stands or equivalent support.

    3. Check the chains on each side of the idler sprocket, on both sides of the machine, for proper tension. The chains should be able to move up and down 1/4 to 1/2 inch (6 to 12 mm).

    4. To adjust the chain tension, loosen the idler bolt and push down on the sprocket to tighten the chain.

      Important: Do not overtighten the chain. Significant chain wear can occur and will shorten the life of an overtightened chain.

    5. Check the chain tension and tighten the idler bolt.

    Adjusting the Return-to-Up Spring

    Warning

    Springs have stored energy. Overtightening the springs may cause the springs to fail which can cause serious injury or death and damage to the machine and property.

    Make sure springs are properly adjusted and/or replaced as specified in the Operator's manual.

    Check the gap between the spring bracket and the end of the spring as shown in Figure 45. The gap should measure 1.38 inch (35 mm). The adjustment is made by turning the bolt at the front of each spring (clockwise will shorten the gap, counter-clockwise will lengthen the gap).

    g233568

    Figure 45

    1. 1.38 inch (35 mm)

    Important: The springs must be replaced it the gap is less than 1.13 inches (29 mm). Always replace both return-to-up springs. This prevents uneven loading and possible damage to the machine.

    Cleaning the Engine and the Exhaust System Area

    Caution

    Excessive debris around engine cooling air intake and exhaust system area can cause engine, exhaust area, and hydraulic system to overheat, which can create a fire hazard.

    Clean all debris from engine and exhaust system area.

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Clean all debris from screen at the top of the engine, around engine shrouding, and exhaust system area.

    3. Wipe up any excessive grease or oil around the engine and exhaust system area.

    Removing the Engine Shrouds and Cleaning the Cooling Fins

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Remove cooling shrouds from engine.

    3. Clean cooling fins of the engine.

      Note: Also clean dust, dirt, and oil from external surfaces of engine, which can cause improper cooling.

    4. Install the cooling shrouds into the engine.

      Important: Operating the engine without cooling shrouds causes engine damage due to overheating. Do not operate the machine without the cooling shrouds.

    Cleaning the Debris from the Machine

    1. Shut off the engine, engage the parking brake, remove the key, and wait for all moving parts to stop before leaving the operating position.

    2. Clean off any oil, debris, or grass buildup on the machine and aerator deck.

    3. Clean off any debris or grass under the chain guards, around the fuel tank, and around the engine and exhaust area.

    Disposing of Waste

    Disposing of the Engine Oil

    Engine oil and hydraulic fluid are both pollutants to the environment. Dispose of used oil at a certified recycling center or according to your state and local regulations.

    Disposing of the Battery

    Danger

    Battery electrolyte contains sulfuric acid, which is poisonous and can cause severe burns. Swallowing electrolyte can be fatal or if it touches skin can cause severe burns.

    • Wear safety glasses to shield eyes, and rubber gloves to protect skin and clothing when handling electrolyte.

    • Do not swallow electrolyte.

    • In the event of an accident, flush with water and call a doctor immediately.

    Federal law states that batteries should not be placed in the garbage. Management and disposal practices for batteries must follow relevant federal, state, or local laws.

    If a battery is being replaced or if the machine containing the battery is no longer operating and is being scrapped, remove the battery and take it to a local certified recycling center. If no local recycling is available return the battery to any certified battery reseller.

    Storage

    1. Raise the tines, stop the machine, shut off the engine, engage the parking brake, and remove the key.

    2. Remove dirt and grime from the entire machine.

      Important: You can wash the machine with mild detergent and water. Do not pressure-wash the machine. Avoid excessive use of water, especially near the engine and hydrostatic drive.

    3. Service the air cleaner; refer to Service Air Cleaner.

    4. Lubricate the machine; refer to Lubrication.

    5. Change the engine oil; refer to Changing the Engine Oil.

    6. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged.

    7. Paint all scratched or bare metal surfaces. Paint is available from your authorized Toro distributor.

    8. Store the machine in a clean, dry garage or storage area.

    9. Cover the machine to protect it and keep it clean.

    Troubleshooting

    ProblemPossible CauseCorrective Action
    The starter does not crank.
    1. The parking brake is not engaged.
    2. The battery does not have a full charge.
    3. The electrical connections are corroded, loose or faulty.
    4. A fuse is blown.
    5. A relay or switch is defective.
    1. Engage the parking brake.
    2. Charge the battery.
    3. Check the electrical connections for good contact. Clean the connector terminals thoroughly with electrical contact cleaner, apply dielectric grease, and reconnect.
    4. Replace the blown fuse.
    5. Contact an Authorized Service Dealer.
    The engine does not start, starts hard, or fails to keep running.
    1. The fuel tank is empty.
    2. The fuel-shutoff valve is closed.
    3. The throttle and choke are not in the correct position.
    4. There is dirt, water, or stale fuel is in the fuel system.
    5. The air cleaner is dirty.
    6. The electrical connections are corroded, loose or faulty.
    7. A relay or switch is defective.
    8. The spark plug is faulty.
    9. The spark-plug wire is not connected.
    10. The ambient temperature is too low.
    1. Fill the fuel tank.
    2. Open the fuel-shutoff valve.
    3. Ensure that the throttle level is midway between the Slow and Fast positions, and the choke is in the On position for a cold engine or the Off position for a warm engine.
    4. Contact an Authorized Toro service dealer.
    5. Clean or replace the air-cleaner element.
    6. Check the electrical connections for good contact. Clean connector terminals thoroughly with electrical contact cleaner, apply dielectric grease, and connect.
    7. Contact an Authorized Service Dealer.
    8. Clean, adjust, or replace the spark plug.
    9. Check the spark-plug wire connection.
    10. Place the machine into a warmer environment and allow the hydraulic fluid and engine oil to warm sufficiently.
    The engine loses power.
    1. The engine load is excessive.
    2. The air cleaner is dirty.
    3. The oil level in the crankcase is low.
    4. The cooling fins and air passages for the engine are plugged.
    5. There is dirt, water, or stale fuel is in the fuel system.
    1. Reduce the ground speed or aeration depth.
    2. Clean or replace the air-cleaner element.
    3. Add oil to the crankcase.
    4. Remove the obstructions from the cooling fins and air passages.
    5. Contact an Authorized Service Dealer.
    The engine overheats.
    1. The engine load is excessive.
    2. The oil level in the crankcase is low.
    3. The cooling fins and air passages for the engine are plugged.
    1. Reduce the ground speed or aeration depth.
    2. Add oil to the crankcase.
    3. Remove the obstructions from the cooling fins and air passages.
    The machine pulls left or right (with levers fully forward).
    1. The tire pressure in drive tires is not correct.
    2. The tracking needs adjustment.
    1. Adjust the tire pressure in the drive tires.
    2. Adjust the traction-control linkage.
    The machine does not drive.
    1. The transmission belt worn, loose, or broken.
    2. The transmission belt is off a pulley.
    1. Change the belt.
    2. Change the belt.
    There is abnormal vibration.
    1. A tine is bent.
    2. The tine mounting bolt is loose.
    3. The engine mounting bolts are loose.
    4. There is a loose engine pulley or idler pulley.
    5. The engine pulley is damaged.
    6. A belt is damaged.
    7. The chains are not properly tensioned.
    1. Install a new tine.
    2. Tighten the tine mounting bolt.
    3. Tighten the engine mounting bolts.
    4. Tighten the appropriate pulley.
    5. Contact an Authorized Service Dealer.
    6. Install a new belt.
    7. Check the drive wheel chain tension and the tine drive-chain tension.
    The tines do not raise.
    1. There is a short in the wire harness.
    2. The return-to-up springs are not properly adjusted.
    3. The return-to-up springs are damaged.
    1. Contact an Authorized Service Dealer.
    2. Adjust the return-to-up springs.
    3. Replace the return-to-up springs.
    The tines do not engage the ground.
    1. The tine down pressure setting is too low.
    2. Electronic depth control is set too shallow.
    3. The harness/switch is damaged.
    4. The auxiliary reservoir is low on oil.
    1. Increase the tine down pressure.
    2. Increase the electrical depth control setting.
    3. Contact an Authorized Service Dealer.
    4. Add oil to the reservoir.