Groundsmaster® 360 4-Wheel Drive Multi-Purpose Machine

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

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

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

• Keep the roll bar in the raised and LOCKED position and use the seat belt when operating the machine.

• Be certain that you can release the seat belt quickly in the event of an emergency.

• Be aware there is no rollover protection when the roll bar is down.

• Check the area to be mowed and never fold the ROPS in areas where there are slopes, drop-offs or water.

• Lower the rollbar only when absolutely necessary. Do not wear the seat belt with the roll bar folded down.

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

1. To lower the roll bar, remove the hairpin cotters, push the roll bar forward against the springs, and remove the 2 pins (Figure 11).

   

   Figure 11

   1. Pin
   2. Hairpin cotter
   3. Roll bar, raised position
   4. Roll bar, lowered position

2. Lower the roll bar to the down position (Figure 11).

3. Install the 2 pins and secure them with the hairpin cotter pins (Figure 11).

   Important: Ensure that the seat is secured with the seat latch.

4. To raise the roll bar, remove the hairpin cotter pins and remove the 2 pins (Figure 11).

5. Raise the roll bar to the upright position and install the 2 pins and secure them with the hairpin cotter pins (Figure 11).

Important: Always use the seat belt when the roll bar is in the raised and locked position. Do not use the seat belt when the roll bar is in the lowered position.

For maximum trimming and minimum turf damage, operate the machine in the 4-wheel-steering mode. However, when transporting the machine on roads or trails, switch the machine into 2-wheel-steering mode.

Figure 12

1. Steering selector switch

To access the hydraulic and other systems under the seat, you need to unlatch the seat and swing it forward.

1. Move the seat latch located on the left side of the seat (Figure 16) rearward to unlatch the seat, and pull forward on the top of the seat.

   

   Figure 16

   1. Seat latch

2. To lower the seat, pull up on the seat-latch release bar and lower the seat into the LOCKED position.

   

   Figure 17

   1. Seat-latch release bar

The throttle control regulates the engine speed as measured in rpm (revolutions per minute). Place the throttle control in the Fast position for best performance. Always operate in the Fast throttle position when mowing.

To stop the machine, release the traction pedal to the NEUTRAL position.

Set the parking brake whenever you leave the machine. Remember to remove the key from the ignition switch.

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

1. Move the machine to the job site.

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

3. Engage the PTO switch.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

DPF Soot Accumulation

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

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

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

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

Engine Warning Messages—Soot Accumulation

Indication Level	Fault Code	Engine Power Rating	Recommended Action
Level 1: Engine Warning	Figure 22 Check EngineSPN 3719, FMI 16	The computer de-rates the engine power to 85%	Perform a parked regeneration as soon as possible; refer to Parked Regeneration.
Level 2: Engine Warning	Figure 23 Check EngineSPN 3719, FMI 0	The computer de-rates the engine power to 50%	Perform a recovery regeneration as soon as possible; refer to Recovery Regeneration.

DPF Ash Accumulation

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

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

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

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

• The advisory and faults are indications that it is time to service the DPF.

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

InfoCenter Advisory and Engine Warning Messages—Ash Accumulation

Indication Level	Advisory or Fault Code	Engine Speed Reduction	Engine Power Rating	Recommended Action
Level 1: System Advisory	Figure 24 Advisory #179	None	100%	Notify your service department that advisory #179 displays in the InfoCenter.
Level 2: Engine Warning	Figure 25 Check EngineSPN 3720, FMI 16	None	The computer de-rates the engine power to 85%	Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter
Level 3: Engine Warning	Figure 26 Check EngineSPN 3720, FMI 0	None	The computer de-rates the engine power to 50%	Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter
Level 4: Engine Warning	Figure 27 Check EngineSPN 3251, FMI 0	Engine speed at max torque + 200 rpm	The computer de-rates the engine power to 50%	Service the DPF; refer to Servicing the Diesel-Oxidation Catalyst (DOC) and the Soot Filter

Types of Diesel Particulate Filter Regeneration

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

Type of Regeneration	Conditions for DPF regeneration	DPF description of operation
Passive	Occurs during normal operation of the machine at high-engine speed or high-engine load	The InfoCenter does not display an icon indicating passive regeneration.
		During passive regeneration, the DPF processes high-heat exhaust gasses; oxidizing harmful emissions and burning soot to ash.
		Refer to Passive DPF Regeneration.
Assist	Occurs as a result of low-engine speed, low-engine load, or after the computer detects back pressure in the DPF	When the assist/reset-regeneration icon is displayed in the InfoCenter, an assist regeneration is in progress.
		During assist regeneration, the computer controls the intake throttle to increase the exhaust temperature, enabling assist regeneration to occur.
		Refer to Assist DPF Regeneration.
Reset	Occurs after assist regeneration only if the computer detects that assist regeneration did not sufficiently reduce the soot level	When the assist/reset-regeneration icon is displayed in the InfoCenter, a regeneration is in progress.
	Also occurs every 100 hours to reset baseline sensor readings
		During reset regeneration, the computer controls the intake throttle and fuel injectors to increase the exhaust temperature during regeneration.
		Refer to Reset Regeneration.

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

Type of Regeneration	Conditions for DPF regeneration	DPF description of operation
Parked	Soot buildup occurs as a result of prolonged operation at low-engine speed or low-engine load. May also occur as a result of using incorrect fuel or oil	When the parked-regeneration icon is displayed in the InfoCenter, a regeneration is requested.
	The computer detects back pressure due to soot buildup and requests a parked regeneration
		• Perform the parked regeneration as soon as possible to avoid needing a recovery regeneration.
		• A parked regeneration requires 30 to 60 minutes to complete.
		• You must have at least a 1/4 tank of fuel in the tank.
		• You must park the machine to perform a recovery regeneration.
		Refer to Parked Regeneration.
Recovery	Occurs as a result of ignoring parked regeneration requests and continuing operation, adding more soot when the DPF is already in need of a parked regeneration	When the recovery-regeneration icon is displayed in the InfoCenter, a recovery regeneration is requested.
		Contact your Authorized Toro Distributor to have a service technician perform the recovery regeneration.
		• A recovery regeneration requires up to 4 hours to complete.
		• You must have at least a 1/2 tank of fuel in the machine.
		• You must park the machine to perform a recovery regeneration.
		Refer to Recovery Regeneration.

Assist DPF Regeneration

Figure 28

Assist/reset-regeneration icon

• The assist/reset-regeneration icon displays in the InfoCenter (Figure 28).

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

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

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

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

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

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

Reset Regeneration

Figure 29

Assist/reset-regeneration icon

• The assist/reset-regeneration icon displays in the InfoCenter (Figure 29).

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

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

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

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

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

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

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

Parked Regeneration

Figure 30

Parked-regeneration request icon

• The parked-regeneration requested icon displays in the InfoCenter (Figure 30).

• If a parked regeneration is needed, the InfoCenter displays engine warning SPN 3719, FMI 16 (Figure 31) and the engine computer derates engine power to 85%.

  

  Figure 31

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

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

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

Preparing to Perform a Parked or Recovery Regeneration

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

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

3. Park the machine on a level surface.

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

5. If applicable, lower the cutting units and shut them off.

6. Engage the parking brake.

7. Set the throttle to the low IDLE position.

Performing a Parked Regeneration

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

1. Access the protected menu and unlock the protected settings submenu (Figure 32); refer to Accessing Protected Menus.

   

   Figure 32

2. Navigate to the MAIN MENU, press the center button to scroll down to the SERVICE MENU, and press the right button to select the SERVICE option (Figure 33).

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

   

   Figure 33

3. In the SERVICE MENU, press the middle button until the DPF REGENERATION options displays, and press the right button to select the DPF REGENERATION option (Figure 34).

   

   Figure 34

4. When the “Initiate DPF Regen. Are you sure?” message displays, press the center button (Figure 35).

   

   Figure 35

5. If the coolant temperature is below 60°C (140°F) the “Insure is running and above 60C/140F” message displays. (Figure 36).

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

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

   

   Figure 36

6. Move the throttle control to LOW IDLE and press the center button (Figure 37).

   

   Figure 37

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

   1. The “Initiating DPF Regen.” message displays (Figure 38).

      

      Figure 38

   2. The “Waiting on ” message displays (Figure 39).

      

      Figure 39

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

      • If the regeneration is allowed, the “Regen Initiated. Allow up to 30 minutes for completion” message displays in the InfoCenter, wait for the machine to complete the parked regeneration process (Figure 40).

        

        Figure 40

      • If the regeneration process is not allowed by the engine computer, the “DPF Regen Not Allowed” message displays in the InfoCenter (Figure 41). Press the left button to exit to the home screen

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

        

        Figure 41

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

   		The engine is cold—wait.
   		The engine is warm—wait.
   		The engine hot—regeneration in progress (percent complete).

9. The parked regeneration is complete when the “Regen Complete” message displays in the InfoCenter. Press the left button to exit to the home screen (Figure 42).

   

   Figure 42

If the machine runs out of fuel or stalls for another reason, you may need to push it. To do so, you first need to open both of the hydraulic bypass valves.

Important: Always push the machine by hand and never over a long distance. Never tow the machine, because hydraulic damage may occur.

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

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

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

  

  Figure 45

  1. Front tie-down
  2. Rear tie-downs

1. Ensure that the PTO is disengaged.

2. Park the machine on a level surface.

3. Set the parking brake.

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

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

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

7. Allow machine components to cool before performing maintenance.

1. Release the hood latches.

2. Raise the hood high enough to position the prop rod behind the frame tube (Figure 47).

3. Lower the hood until the rod is in front of and resting against the frame tube.

4. To lower the hood, raise the hood until the prop rod can be raised above the frame tube, then lower the hood.

5. Secure the hood latches.

   

   Figure 47

   1. Prop rod

The machine has grease fittings that you must lubricate regularly with No. 2 lithium grease. Also, lubricate the machine immediately after every washing.

1. Wipe the grease fittings clean so that foreign matter is not forced into the bearing or bushing.

2. Pump grease into the fittings.

3. Wipe off any excess grease.

Note: To access the grease fittings of the rear steering linkage, remove the storage compartment.

Note: Jack the machine off the floor to allow better grease migration through both the upper and lower kingpin bushings. Grease must be observed purging out of both the top and the bottom of the axle casting/bushing assembly areas of all 4 kingpin assemblies.

Figure 48

Note: Bearing life can be negatively affected by improper washing procedures. Do not wash the machine when it is still hot, and avoid directing high-pressure or high-volume spray at the bearings or seals.

Check the air-cleaner body for damage, which could cause an air leak. Replace it if it is damaged. Check the whole intake system for leaks, damage, or loose hose clamps.

Service the air-cleaner filter only when the service indicator requires it (Figure 49). Changing the air filter before it is necessary only increases the chance of dirt entering the engine when you remove the filter.

Figure 49

1. Air-cleaner indicator

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

1. Replace the air cleaner (Figure 50).

   

   Figure 50

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

   Important: Never attempt to clean the safety filter (Figure 51). Replace the safety filter after every 3 primary filter services.

   

   Figure 51

   1. Air-cleaner safety filter

2. Reset the indicator (Figure 49) if it shows red.

• If advisory message displays in the InfoCenter, the DPF is nearing the recommended point for servicing the diesel-oxidation catalyst and the soot filter.

  

  Figure 54

• If engine faults , , or in the InfoCenter (Figure 55) display in the InfoCenter, clean the soot filter using the steps that follow:

  

  Figure 55

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

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

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

Service the water separator as shown in Figure 56.

Figure 56

1. Clean the area around the filter head (Figure 57).

   

   Figure 57

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

Inspect the fuel lines and connections for deterioration, damage, or loose connections.

The fuel pick-up tube, located inside the fuel tank, is equipped with a screen to help prevent debris from entering the fuel system. Remove the fuel pick-up tube and clean the screen as required.

If the machine stops or has other electrical system issues, check the fuses. Grasp each fuse in turn and remove them 1 at a time, checking to see if any are blown. If you need to replace a fuse, always use the same type and amperage rated fuse as the one you are replacing, otherwise you could damage the electrical system (refer to the decal next to the fuses for a diagram of each fuse and its amperage).

The fuses are located under the seat (Figure 58).

Figure 58

1. Fuse block

Keep the top of the battery clean. If you store the machine in a location where temperatures are extremely high, the battery will run down more rapidly than if the machine is stored in a location where temperatures are cool.

Keep the top of the battery clean by washing it periodically with a brush dipped in ammonia or baking-soda solution. Flush the top surface with water after cleaning it. Do not remove the fill caps while cleaning the battery.

The battery cables must be tight on the terminals to provide good electrical contact.

If corrosion occurs at the terminals, disconnect the cables, negative (-) cable first, and scrape the clamps and terminals separately. Connect the cables, positive (+) cable first, and coat the terminals with petroleum jelly.

If the machine will be stored more than 30 days, remove the battery and charge it fully. Either store it on a shelf or on the machine. Leave the cables disconnected if it is stored on the machine. Store the battery in a cool atmosphere to avoid quick deterioration of the charge in the battery. To prevent the battery from freezing, make sure that it is fully charged. The specific gravity of a fully charged battery is 1.265 to 1.299.

Check the pressure after every 50 operating hours or monthly, whichever occurs first.

Maintain the air pressure in the front and rear tires. The correct air pressure is 172 kPa (25 psi) in the rear tires and 103 kPa (15 psi) in the front tires. If a cab is installed on the machine, the front and rear tires should be inflated to 172 kPa (25 psi). Uneven tire pressure can cause uneven cut. To get the most accurate pressure reading, check the tires when they are cold.

1. Press the steering selector switch to the rearward 4-wheel-steer position (Figure 59).

   

   Figure 59

   1. Steering-selector switch

2. On a paved or dirt surface, turn the steering wheel to the left or right and continue turning until all 4 wheels have stopped turning. Automatic synchronization of wheel alignment should occur.

   Important: Doing this procedure on turf can result in turf damage directly under each of the turning tires.

The cooling system is filled with a 50/50 solution of water and permanent ethylene-glycol antifreeze. Check the level of the coolant in the expansion tank at the beginning of each day before starting the engine. The capacity of the cooling system is 7.5 L (6 US qt).

1. Check the level of the coolant in the expansion tank (Figure 60). The coolant level should be between the marks on the side of the tank.

2. If the coolant level is low, remove the expansion-tank cap and replenish the system. Do not overfill the cooling system.

3. Install the cap of the expansion tank.

   

   Figure 60

   1. Expansion tank

To prevent the engine from overheating, keep the radiator clean. Normally, check the radiator daily and, if necessary, clean any debris off these parts. Check and clean the radiator frequently in extremely dusty and dirty conditions.

Note: If the mower deck or engine shuts off due to overheating, first check the radiator for excessive buildup of debris.

Clean the radiator as follows:

1. Open the hood and secure the prop rod.

2. Loosen the flange nut securing the clean-out cover to the underside of the rear frame (Figure 61). Rotate the cover to the side to expose the clean-out hole in the frame.

   

   Figure 61

   1. Clean-out cover

3. Working from the fan side of the radiator, blow out debris with low-pressure (345 kPa [50 psi]) compressed air (do not use water). Repeat the step from the front of the radiator and again from the fan side.

4. After the radiator is thoroughly cleaned, clean out any debris that may have collected in the channel at the radiator base and around the frame. Also, clean out the engine compartment and the brake linkage to ensure optimum performance.

5. Close the clean-out cover and secure the flange nut.

6. Close the hood.

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

Note: Use the wheel motor backlash to rock the drums back and forth to ensure that the drums are free prior to and after adjustment.

1. To reduce free travel of the brake pedals, tighten the brakes by loosening the front nut on the threaded end of the brake cable (Figure 62).

   

   Figure 62

   1. Brake cables
   2. Front nuts

2. Tighten the rear nut to move the cable backward until the brake pedals have 1.27 to 1.9 cm (1/2 to 3/4 inch) of free travel, before wheel lockup is achieved.

3. Tighten the front nuts, ensuring that both cables actuate the brakes simultaneously.

If the parking brake fails to engage, an adjustment to the brake pawl is required.

1. Loosen the 2 screws securing the parking-brake pawl to the frame (Figure 63).

   

   Figure 63

   1. Brake cables
   2. Screws (2)
   3. Parking-brake pawl
   4. Brake detent

2. Press the parking-brake pedal forward until the brake detent completely engages on the brake pawl (Figure 63).

3. Tighten the 2 screws to lock the adjustment.

4. Press the brake pedal to release the parking brake.

5. Check the adjustment and adjust it again as required.

Check the condition and tension of the belt (Figure 64) after every 100 operating hours.

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

2. If the deflection is not 10 mm (3/8 inch), loosen the alternator mounting bolts (Figure 64). Increase or decrease the tension of the alternator belt and tighten the bolts. Check the deflection of the belt again to ensure that the tension is correct.

   

   Figure 64

   1. Mounting bolt
   2. Alternator

Note: If the machine has recently had the hydraulic fluid changed or the traction motors or hoses replaced, any air trapped in the system will have to be worked out prior to performing this procedure. This can be accomplished by operating the machine in forward and reverse for a few minutes and then replenishing the oil as required.

Note: When positioned on a level surface, the machine must not creep when the traction pedal is released.

1. Park the machine on a level surface, shut off the engone, and lower the cutting unit to the floor.

2. Jack up the rear of the machine until the rear tires are off the shop floor. Support the machine with jack stands to prevent it from falling accidentally.

   Note: On 4-wheel-drive models, the front tires must also be off the shop floor and supported by jack stands.

   Warning

   The engine must be running so that this adjustment can be performed. This could cause personal injury.

   Keep hands, feet, face, and other body parts away from any hot parts of the engine and any rotating parts.

3. Start the engine, set the throttle to the Slow position, and observe which direction the rear tires rotate.

   Important: Make sure that the traction pedal is in the NEUTRAL position.

   • If the left rear tire is rotating, loosen the jam nuts on the left side transmission control rod (Figure 65).

     Note: The forward end of the control rod has a left-hand thread. The rear end of the rod, which is connected to the transmission, has a right-hand thread.

     

     Figure 65

     1. Transmission control rods

   • If the left rear tire is rotating in reverse, lengthen the rod by slowly turning the rod counterclockwise (as viewed from the front) until the left rear tire stops rotating or has minimal rotation in reverse.

   • If the left rear tire is rotating forward, shorten the rod by slowly turning the rod clockwise (as viewed from the front) until the left rear tire stops rotating.

4. Move the throttle to the Fast position. Make sure that the wheel remains stopped or has minimal rotation in reverse. Adjust it as required.

5. Tighten the jam nuts.

6. Repeat the procedure for the right rear tire, if required, by using the right-side transmission control rod.

7. Stop the engine. Remove the jack stands and lower the machine to the shop floor.

8. Test drive the machine to make sure that it does not creep.

1. Disengage the PTO, release the traction pedal to the NEUTRAL position, and set the parking brake.

2. Move the throttle lever to the Slow position, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Loosen the jam nut on the stop bolt for the traction pedal (Figure 66).

   

   Figure 66

   1. Traction pedal
   2. Stop bolt with jam nut (forward)
   3. 1.5 mm (0.060 inch)
   4. Stop bolt with jam nut (reverse)

4. Adjust the stop bolt all the way inward (away from the traction pedal).

5. Push the traction pedal with your hand all the way forward with light pressure until it stops, and hold it there. Maintain only light pressure on the pedal when pushing it to the full forward position.

6. With the seat in the raised position, verify that you are not overloading the linkage by making sure that the transmission does not move when you press the pedal to the stop.

7. Adjust the stop bolt outward (toward the traction pedal) until there is a gap of 1.5 mm (0.060 inch) between the head of the stop bolt and the bottom of the traction pedal.

8. Tighten the jam nut to secure the stop bolt in place.

9. Adjust the reverse stop bolt if the maximum reverse speed is not acceptable.

   Note: For a faster reverse speed, adjust the stop bolt inward. For a slower reverse speed, adjust the stop bolt outward.

Flip the mow-speed limiter (Figure 67) forward to limit the traction speed of the machine.

1. Disengage the PTO, release the traction pedal to the NEUTRAL position, and set the parking brake.

2. Move the throttle lever to the Slow position, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Loosen the jam nut on the stop bolt of the mow-speed limiter (Figure 67).

   

   Figure 67

   1. Mow-speed limiter
   2. Stop bolt w/ jam nut

4. Thread the stop bolt in to increase the mow speed and out to decrease the mow speed.

5. Tighten the jam nut to lock the adjustment.

6. Rotate the mow-speed limiter down, operate the machine to verify the adjustment, and adjust the stop bolt again if required.

The reservoir is filled at the factory with approximately 17 L (18 US qt) of high-quality tractor transmission/hydraulic fluid. The recommended replacement fluid is as follows:

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

Alternate fluids: If the Toro fluid is not available, Mobil® 424 hydraulic fluid may be used.

Note: Toro will not assume responsibility for damage caused by improper substitutions.

Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic system oil is available in 20 ml (2/3 fl oz) bottles. One bottle is sufficient for 15 to 22 L (4 to 6 US gallons) of hydraulic fluid. Order part number 44-2500 from your authorized Toro distributor.

1. Position the machine on a level surface. Release the traction pedal to the NEUTRAL position and start the engine. Run the engine at the lowest possible speed to purge the system of air. Do not engage the PTO. Raise the deck to extend the lift cylinders, shut off the engine, and remove the key.

2. Remove the hydraulic-fill cap (Figure 68) from the filler neck.

3. Remove the dipstick and wipe it with a clean rag (Figure 68).

4. Screw the dipstick all the way into the filler neck; then remove it, and check the level of the fluid (Figure 68).

   If the level is not within the notched area of the dipstick, add enough high-quality hydraulic fluid to raise the level to within the notched area. Do not overfill the hydraulic system.

5. Replace the dipstick and thread the fill cap finger-tight onto the filler neck.

6. Check all hoses and fittings for leaks.

   

   Figure 68

   1. Dipstick

1. Disengage the PTO, release the traction pedal to the NEUTRAL position and set the parking brake.

2. Move the throttle lever to the SLOW position, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

3. Place a large pan under the hydraulic reservoir and transmission case and remove the plugs, draining all of the hydraulic fluid (Figure 69).

   

   Figure 69

   1. Transmission-case drain plug
   2. Filter
   3. Hydraulic-reservoir drain plug

4. Clean the area around the hydraulic-fluid filter and remove the filter (Figure 69).

5. Immediately install a new hydraulic-fluid filter.

6. Install the drain plugs in the hydraulic reservoir and the transmission case.

7. Fill the reservoir to the proper level; refer to Checking the Hydraulic System.

8. Start the engine and check for fluid leaks. Allow the engine to run for about 5 minutes, then shut it off.

9. After 2 minutes, check the level of the hydraulic fluid; refer to Checking the Hydraulic System.

Engine oil, batteries, hydraulic fluid, and engine coolant are pollutants to the environment. Dispose of these according to your state and local regulations.