30in Stand-On Aerator

• 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 people or damage to property.

• Evaluate the terrain to determine what accessories and attachments are needed to properly and safely perform the job. Only use 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 jewelry.

• Inspect the area where the equipment is to be used and ensure that all objects are removed from the area before use.

• 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.

• 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.

• Only operate 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 engine. Only start the engine from the operator’s position.

• Make sure 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. Be sure all interlocks are attached, adjusted properly, and functioning properly.

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

• Before leaving the operator’s position:

  • Stop on level ground.

  • Disengage the parking brake (if provided).

  • Shut off the engine.

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

• Stop equipment 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.

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

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

• 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.

• Never refuel or drain the machine indoors and do not smoke while refueling or draining.

• 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 fuel tank. Replace fuel cap and tighten securely.

• Do not allow untrained personnel to service machine.

• Do not touch equipment or attachment parts which 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. Reconnect 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 the machine on level, hard ground. Never allow untrained personnel to service machine.

• Use jack stands to support components when required.

• Carefully release pressure from components with stored energy.

• Let the engine cool before storing.

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

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

• Use full-width ramps for loading 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.

• 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.

Use extreme caution when aerating and/or turning on slopes as loss of traction and/or tip-over could occur. The operator is responsible for safe operation on slopes.

• Use Figure 3 to help you determine the appropriate slope angle of area to aerate

• Remove or mark obstacles such as rocks, tree limbs, etc. from the aerating area.

• Watch for holes, ruts or bumps.

  Note: Tall grass can hide obstacles.

• Use caution near drop-offs, ditches, or embankments.

  Note: The machine could suddenly turn over if a wheel goes over the edge of a cliff or ditch, or if an edge caves in.

• Be aware that operating on wet grass, across steep 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.

• Do not aerate slopes greater than 15 degrees.

• Avoid sudden starts and stops when aerating uphill because the machine may tip backward.

  Note: The machine is more stable going uphill with the tines raised.

• Keep all movement on slopes slow and gradual.

• Do not make sudden changes in speed or direction.

• Reduce the tine-down pressure to prevent the drive tires from raising off the ground and to prevent the front tires from raising off the ground while aerating uphill.

• Follow the manufacturer’s recommendations for wheel weights or counter weights to improve stability.

• Use extra care with attachments.

  Note: Use of attachments can change the stability of the machine.

• To ensure optimum performance and continued safety certification of the machine, 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.

• 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 brake operation frequently. Adjust and service as required.

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

• Keeps fuel fresh during storage of 90 days or less. For longer storage it is recommended that the fuel tank be drained.

• Cleans the engine while it runs

• Eliminates 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.

1. Clean around the fuel-tank cap.

2. Remove the cap from the tank.

3. Fill the fuel tank with unleaded 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.

1. Turn the key in the ignition switch to the OFF position, engage the parking brake, wait for all moving parts to stop, and remove key.

2. Inspect sprockets for wear and replace as required (Figure 14).

   

   Figure 14

   1. Sprockets
   2. Chains

1. Turn the key in the ignition switch to the OFF position, engage the parking brake, wait for all moving parts to stop, and remove key.

2. Check the chain tension (Figure 14) at both sides of the machine.

   Note: The chains should move up and down 6 to 12 mm (1/4 to 1/2 inch).

3. If chains pop or snap; refer to Adjusting the Jackshaft Drive Chain Tension, Adjusting the Tension on the Drive-Wheel Chain, or Adjusting the Tine-Drive Chain.

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

1. Turn the key in the ignition switch to the OFF position, engage the parking brake, wait for all moving parts to stop, and remove key.

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. Turn the key in the ignition switch to the ON position, and move throttle level ahead to 1/2 throttle position.

   Warning

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

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

4. Disengage the parking brake.

5. With the engine running, slowly move the traction-control levers forward and lubricate all 6 chains (Figure 14).

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

Rotate the lever of the fuel-shut off valve to align the lever with the fuel line.

Figure 15

1. Off position
2. On position

1. Move the traction-control levers to the NEUTRAL position and engage the parking brake; refer to Traction-Control Levers and Parking-Brake Handle.

   Note: To start the engine, the parking brake must be engaged. (It is not necessary for the operator to be on the platform.)

2. Place the throttle lever midway between the SLOW and FAST positions; refer to Throttle Lever.

3. If the engine is cold, push the choke lever forward to the ON position; refer to Choke Lever.

   Note: If the engine is warm , pull the choke lever to the OFF position.

4. Turn the key in the ignition switch to the START position; refer to Ignition Switch .

   Note: Release the key in the ignition switch as soon as the engine starts.

   Important: Do not crank the engine continuously for more than ten 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 lever is in the ON position, gradually move the lever toward the OFF position as the engine warms up.

1. Set throttle lever to the MIDWAY position; refer to Throttle Lever.

2. Step on the tine-elevation switch to lower the tines (Figure 16).

   

   Figure 16

   1. Tine-elevation switch

3. Stand on the switch and move the traction-control levers forward to aerate (Figure 16); refer to Traction-Control Levers.

4. Adjust the throttle for the working conditions; refer to Throttle Lever.

Important: Keep the drive tires on the ground at all times.

Adjust the plug depth by rotating the tine pressure control as follows:

Note: First time use: set the tine pressure control so that the tine-pressure gauge (Figure 17) indicates 24 bar (350 psi).

Figure 17

1. Tine-pressure control
2. Tine-pressure gauge
3. Decrease pressure (shorter plug)
4. Increase pressure (longer plug)

• Rotate the tine-pressure control counterclockwise (Figure 17) to decrease the downward pressure in order to remove a shorter plug.

• Rotate the tine-pressure control clockwise (Figure 17) to increase downward pressure in order to remove a longer plug.

Note: Ideal plug depth is 7.6 to 10 cm (3 to 4 inches). Rotate the tine-pressure control to adapt to the soil conditions.

To raise the tines, remove your foot from the tine-elevation switch (Figure 16).

Important: The tines rotate when the traction-control lever is moved out of the NEUTRAL position.

1. Move the traction-control levers to the NEUTRAL position and bring the machine to a full stop; refer to Traction-Control Levers.

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

3. Place the throttle in the midway between the SLOW and FAST positions; refer to Throttle Lever.

4. Allow the engine to run for a minimum of 15 seconds, then turn the key in the ignition switch to the OFF position to shut off the engine; refer to Ignition Switch .

5. Engage the parking brake; refer to Parking-Brake Handle.

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

7. Close the fuel-shutoff valve when the machine will not be in use for a few days, when transporting, or when the machine is parked inside a building; refer to Fuel-Shutoff Valve.

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

Figure 18

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

Driving Forward

1. Make sure that the traction-control levers are in the NEUTRAL position.

2. Disengage the parking brake.

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

   

   Figure 19

   To turn left or right, pull the traction-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 turns, lift your foot off of the tine engagement foot switch control to raise the tines. The head raises in 1 second.

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

   The machine moves faster the farther you move the traction-control levers from the neutral position.

4. To stop, position both traction-control levers in the neutral operate position.

Driving in Reverse

1. Move the traction-control levers to the NEUTRAL/OPERATE position.

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

   

   Figure 20

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

   To make zero turns, lift your foot off of the tine-elevation switch to raise the tines. The head raises in 1 second.

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

3. To stop, position both traction-control levers in the NEUTRAL/OPERATE position.

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

1. Move the machine to a level surface.

2. Turn the key in the ignition switch to the OFF position, engage the parking brake, wait for all moving parts to stop.

3. Remove the key from the key switch.

Grease type: National Lubricating Grease Institute (NGLI) grade #2 multi-purpose gun grease.

Note: Refer to the lubrication chart for service intervals.

Lubrication Chart

Figure 24

1. Turn the key in the ignition switch to the OFF position, engage the parking brake, wait for all moving parts to stop, and remove the key.

2. Wipe clean the grease fittings with a rag (Figure 24).

3. Connect a grease gun to the fitting (Figure 24).

4. Pump grease into the fittings until grease begins to ooze out of the bearings.

5. Wipe up any excess grease.

Grease type: National Lubricating Grease Institute (NGLI) grade #2 multi-purpose gun grease.

Inspect the foam and paper elements, and replace them if they are damaged or excessively dirty.

Important: Do not apply oil to the foam or paper element.

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

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

Oil viscosity: Refer to the table below.

Figure 29

Remove spark plugs, check condition and reset gaps, or replace with new plugs. See the engine owner's manual.

Type for all Engines: NGK BPR4ES or equivalent

Air Gap: 0.75 mm (0.03 inch)

Make sure 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.

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).

Figure 35

Installing the Spark Plug

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

Figure 36

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 spark-arrester screen or welds.

   Note: Replace 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 of 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.

Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of 4 parts water and 1 part baking soda. Apply a light coating of grease to the battery terminals to prevent corrosion.

Voltage: 12 volts

The electrical system is protected by fuses, and requires no maintenance. If a fuse blows, check the component or circuit for a malfunction or short.

1. Release the cushion from the rear of the machine.

2. Remove the negative-battery cable from the battery terminal; refer to steps 4 and 5 of Removing the Battery.

   Note: Ensure that the negative battery cable does not touch the battery terminal.

3. Pull the fuse from the socket of the fuse block (Figure 40).

   

   Figure 40

   1. Fuse block

4. Install a fuse of the same type and amperes into the socket of the fuse block (Figure 40).

5. Install the negative-battery cable from the battery terminal; refer to steps 5 and 6 of Installing the Battery.

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 tire pressure in drive tires.

3. Inflate drive tires to 83-97 kPa (12-14 psi).

Torque the wheel hub nuts (Figure 41) to 285 to 350 N∙m (210 to 260 ft-lb).

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

Figure 41

1. Lug nut
2. Hub nut

Torque the wheel lug nuts (Figure 41) to 122 to 129 N∙m (90 to 95 ft-lb).

Note: If you disassemble the caster pivot bearings, ensure that the spring-disc washers are installed as shown in Figure 42.

1. Remove dust cap from caster hub (Figure 42).

   

   Figure 42

   1. Dust cap
   2. Locknut
   3. Spring-disc washers
   4. Spindle
   5. Caster hub

2. Tighten the locknut clockwise until spring-disc washers are flat (Figure 42).

3. Rotate the locknut counterclockwise 1/4 of a turn (Figure 42).

4. Install the dust cap (Figure 42).

Torque the nut (Figure 45) on the transmission output tapered shaft to 285-353 N∙m (210-260 ft-lb).

Figure 45

1. Transmission output shaft nut

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

1. Park the machine on a level surface.

2. Turn the key in the ignition switch to the OFF position and wait for all moving parts to stop.

3. Check the air pressure in the drive tires.

   Note: If needed, adjust to the recommended inflation; refer to Checking the Air Pressure in the Tires.

4. Loosen the jam nut on the brake cable under the console (Figure 46).

   

   Figure 46

   1. 7.9 cm (3–1/8 inch)

5. Engage the parking brake (Figure 46).

6. Adjust the jam nut position until 7.9 cm (3–1/8 inch) from the bottom of the link to the bottom of the spring (Figure 46).

7. Secure the adjustment of the cable by tightening the jam nuts (Figure 46).

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

1. Park the machine on a level surface.

2. Turn the key in the ignition switch to the OFF position and wait for all moving parts to stop.

3. Prior to adjusting the brake switch, ensure the parking brake is properly adjusted; refer to Adjusting the Parking Brake.

4. Engage the parking brake.

5. Check the distance between the parking brake-switch bracket to the brake arm of the transmission (Figure 47).

   Note: The distance should be 3.2 mm (1/8 inch).

   

   Figure 47

   1. Brake arm (transmission)
   2. Plunger (brake switch)
   3. Brake-switch bracket
   4. Locknut
   5. Carriage bolt

6. If adjustment is required, preform the following:

   1. Loosen the locknut and carriage bolt securing the parking brake switch bracket (Figure 47).

   2. Adjust the position of the brake-switch bracket until the gap (Figure 47) between the switch bracket and the brake arm is 3.2 mm (1/8 inch)

   3. Tighten the locknut and carriage bolt (Figure 47) securing the brake-switch bracket to 1017 to 1243 N-cm (90 to 110 lb-in).

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.

3. Check the auxiliary pump-drive belt condition and tension (Figure 48).

   Note: The belt should deflect 1.3 cm (1/2 inch) when 1.4 kg (3 lb) of force is applied to the belt midway between the auxiliary pump and engine pulleys. If the belt tension is too high or too low, refer to Adjusting the Auxiliary Pump Drive Belt.

4. Check condition of the transmission-drive belt (Figure 48).

   Note: The transmission belt has a automatic-spring tensioner.

   

   Figure 48

   1. Transmission-drive belt
   2. Auxiliary pump-drive belt

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. Loosen the locknut (3/8 inch) that secures the auxiliary pump-idler pulley to the chassis of the machine.

   

   Figure 49

   1. Auxiliary pump
   2. Auxiliary pump-idler pulley
   3. Locknut (3/8 inch)
   4. Adjustment slot (chassis)
   5. Auxiliary pump-drive belt

3. Adjust the belt tension as follows:

   • Move the auxiliary pump-idler pulley rearward and outward to tighten the belt.

   • Move the auxiliary pump-idler pulley forward and inward to loosen the belt.

   Note: The belt should deflect 1.3 cm (1/2 inch) when 1.4 kg (3 lb) of force is applied to the belt midway between the auxiliary pump and engine pulleys.

4. Tighten the locknut to 37 to 45 N∙m (27 to 33 ft-lb).

Note: No adjustments are required for belt tension.

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. Insert a breaker bar into the socket of the belt-tension bracket and move the bracket outward and forward (Figure 50).

   

   Figure 50

   1. Transmission pullys
   2. Transmission
   3. Socket (belt-tension bracket)
   4. Engine pulley
   5. Tensioner pulley

3. Slip the transmission-drive belt of the engine, tensioner, and transmission pulleys (Figure 50).

4. Route the new transmission-drive belt around the engine, tensioner, and transmission pulleys as shown in Figure 50

5. Release the belt-tension bracket and allow the spring to tension the belt (Figure 50).

   Note: Make sure that the belt-tension bracket and pulley can move freely.

1. Park the machine on a level surface.

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. Push the control lever all the way forward to the front reference bar.

4. If the control lever contact the reference bar or do not contact the reference bar perform the following:

   1. Release the control lever and allow it to return to the neutral position.

   2. Remove the spring-clevis pin from the fork fitting of the traction-control linkage (Figure 51).

      

      Figure 51

      1. Spring-clevis pin
      2. Locknut
      3. Turnbuckle

   3. Adjust the fork fitting to set the initial gap as follows:

      • If the control lever contacts the reference bar, rotate the fork fitting (Figure 51) counterclockwise (as viewed from the top of the machine).

      • If the control lever does not contacts the reference bar, rotate the fork fitting (Figure 51) counterclockwise.

   4. Install the spring clevis pin (Figure 51) and move the control lever forward.

   5. Repeat this steps 1 through 4 until there is a gap approximately 1.6 mm (1/16 inch) between the control lever and the front reference bar.

   6. Remove the spring-clevis pin, rotate the turnbuckle clockwise 1-additional turn, and insert the spring-clevis pin (Figure 51).

5. Repeat steps 41 through 46 for the other traction-control linkage.

Hydraulic fluid type: AW-32 hydro oil

Transmission oil type: Toro® HYPR-OIL™ 500 hydraulic oil or Mobil® 1 15W-50 synthetic motor oil.

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

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 bolt (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 60).

   

   Figure 60

   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 60).

7. Secure the cover panel to the chassis with the 2 bolts and 2 washers (Figure 60) that you removed in step 3, and torque the bolts to 37 to 45 N∙m (27 to 33 lb-in)

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 rear cover; refer to step 3 of Checking the Tines.

3. Check the chains on both sides of the machine for proper tension.

   Note: The chains should move up and down 6 to 12 mm (1/4 to 1/2 inch).

4. Loosen the locknut and carriage bolt that secure the idler sprocket (Figure 61).

   

   Figure 61

   1. Locknut
   2. Idler sprocket
   3. Carriage bolt
   4. Slot (trail plate)

5. Increase or decrease chain tension by performing the following:

   • Push down and forward on the sprocket to increase the chain tension as shown in Figure 61.

   • Lift up and back on the sprocket to decrease the chain tension.

6. Torque the locknut to 91 to 113 N∙m (67 to 83 ft-lb).

7. Check the chain tension and if necessary repeat steps 4 through 6 until you can move the chain up and down 6 to 12 mm (1/4 to 1/2 inch).

8. Install the rear panel; refer to steps 6 and 7 of 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. 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.

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.

   Note: Operating the engine without cooling shrouds causes engine damage due to overheating.

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.