Groundsmaster® 360 4-Wheel Drive Multi-Purpose Machine

Sets the cab to either recirculate the air in the cabin or to draw air into the cabin from outside (Figure 12).

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

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

Rotate the fan-control knob to regulate the speed of the fan (Figure 12).

Rotate the temperature-control knob to regulate the air temperature in the cab (Figure 12).

Use this switch to turn the wind shield wipers on or off (Figure 12).

Use this switch to turn the air conditioning on or off (Figure 12).

Lift up the latch to open the windshield (Figure 13). Press in the latch to lock the windshield in the open position. Pull out and down on the latch to close and secure the windshield.

Figure 13

1. Windshield latch

Lift up the latches to open the rear window. Press in on the latch to lock the window in OPEN position. Pull out and down on the latch to close and secure the window (Figure 13).

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

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.

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

1. Move the seat latch, located on the left side of the seat, rearward to unlatch the seat and pull forward on the top of the seat (Figure 19).

   

   Figure 19

   1. Seat latch

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

   

   Figure 20

   1. Seat-latch-release bar

You can adjust the height of cut from 2.5 to 15.8 cm (1 to 6 inches) in 6 mm (1/4 inch) increments by relocating the height-of-cut pin into different hole locations.

1. With the engine running, push back the deck-lift switch until the cutting unit is fully raised, and release the switch immediately as shown in Figure 21.

2. Rotate the height-of-cut pin until the nub on it lines up with the slots in the holes in the height-of-cut bracket and remove it (Figure 21).

3. Select a hole in the height-of-cut bracket corresponding to the desired height of cut, insert the pin, and rotate it down to lock it in place (Figure 21).

   Note: There are 4 rows of hole positions (Figure 21). The top row gives you the height of cut listed above the pin. The second row down gives you the height listed plus 6 mm (1/4 inch). The third row down gives you the height listed plus 12 mm (1/2 inch). The bottom row gives you the height listed plus 18 mm (3/4 inch). For the 15.8 cm (6 inches) position, there is only 1 hole, located in the second row. This does not add 6 mm (1/4 inch) to the 15.8 cm (6 inches) position.

   

   Figure 21

   1. Height-of-cut pin

4. Adjust the anti-scalp rollers and skids as required.

1. If installed, raise the roll bar up and lock it into place, sit on the seat, and fasten the seat belt.

2. Ensure that the traction pedal is in the NEUTRAL position.

3. Engage the parking brake.

4. Move the power-takeoff (PTO) switch to the OFF position (Figure 23).

   

   Figure 23

   1. InfoCenter
   2. Power-takeoff (PTO) switch
   3. Engine-speed switch
   4. Key switch

5. Turn the key clockwise to the RUN position.

   Note: The InfoCenter glow-plug icon turns on in 6 seconds.

6. After the InfoCenter glow-plug icon goes out, turn the key to the START position. When the engine starts, release the key.

   Important: Use starting cycles of no more than 15 seconds per minute to avoid overheating the starter motor.

   Note: Additional starting cycles may be required when starting the engine for the first time after the fuel system has been completely drained.

   Important: When you start the engine for the first time, or after an engine oil change or an overhaul of the engine, the transmission, or a wheel motor, operate the machine with the engine-speed switch in the Slow position in both the forward and reverse directions for 1 to 2 minutes. Also operate the deck lift switch and the PTO switch to ensure proper operation of all the parts. Then shut the engine off and check the fluid levels and check for oil leaks, loose parts, and any other noticeable malfunctions.

1. Park the machine on a level surface.

2. Disengage the PTO, make sure that the traction pedal is in the NEUTRAL position, engage the parking brake, and move the engine-speed switch to the idle position.

3. Let the engine idle for 60 seconds.

4. Turn the key to the OFF position.

5. Remove the key to prevent the engine from accidentally starting and before you transport or store the machine.

   Note: Remove the key; otherwise, the fuel pump or accessories may run and cause the battery to lose charge.

   Caution

   Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended.

   Always remove the key and engage the parking brake when leaving the machine unattended, even for a short period of time between operation.

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 the throttle in the FAST position when mowing.

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

Engage the parking brake whenever you leave the machine and remove the key.

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 24

1. Steering-selector 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 in the DPF is too high or a reset regeneration has not occurred for 100 hours, the engine computer signals you through the InfoCenter when reset regeneration is running.

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

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

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

DPF Soot Accumulation

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

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

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

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

Engine Warning Messages—Soot Accumulation

Indication Level	Fault Code	Engine Power Rating	Recommended Action
Level 1: Engine Warning	Figure 27 Check EngineSPN 3719, FMI 16	The computer de-rates the engine power to 85%.	Perform a parked regeneration as soon as possible; refer to Performing a Parked or Recovery Regeneration.
Level 2: Engine Warning	Figure 28 Check EngineSPN 3719, FMI 0	The computer de-rates the engine power to 50%.	Perform a recovery regeneration as soon as possible; refer to Performing a Parked or Recovery Regeneration.

DPF Ash Accumulation

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

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

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

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

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

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

InfoCenter Advisory and Engine Warning Messages—Ash Accumulation

Indication Level	Fault Code	Engine Speed Reduction	Engine Power Rating	Recommended Action
Level 1: Engine Warning	Figure 29 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 2: Engine Warning	Figure 30 Check EngineSPN 3720, FMI 16	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 3: Engine Warning	Figure 31 Check EngineSPN 3251, FMI 0	Engine speed at maximum 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 that cause 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 because of low-engine speed, low-engine load, or after the computer detects the DPF is becoming obstructed with soot	• The InfoCenter does not display an icon indicating assist regeneration.
		• During assist regeneration, the engine computer adjusts the engine settings to raise the exhaust temperature.
		Refer to Assist DPF Regeneration.
Reset	Occurs every 100 hours	• When the high exhaust-temperature icon is displayed in the InfoCenter, a regeneration is in progress.
	Also occurs after assist regeneration only if the computer detects that assist regeneration did not sufficiently reduce the soot level
		• During reset regeneration, the engine computer adjusts the engine settings to raise the exhaust temperature.
		Refer to Reset Regeneration.

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

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

Accessing the DPF Regeneration Menus

Accessing the DPF Regeneration Menus

1. Access the Service menu, press the center button to scroll down to the DPF REGENERATION option (Figure 32).

   

   Figure 32

2. Press the right button to select the DPF Regeneration entry (Figure 32).

Time Since Last Regeneration

Access the DPF Regeneration menu, press the center button to scroll down to the LAST REGEN field (Figure 33).

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

Figure 33

Technician Menu

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

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

Access the DPF Regeneration menu, press the center button to scroll down to the TECHNICIAN option, and press the right button to select the Technician entry (Figure 34).

Figure 34

• Use the DPF operation table to understand the current state of DPF operation (Figure 35).

  

  Figure 35

  .

  DPF Operation Table

  State	Description
  Normal	The DPF is in normal-operating mode—passive regeneration.
  Assist Regen	The engine computer is performing an assist regeneration.
  Reset Stby	The engine computer is trying to run a reset regeneration, but 1 of the following conditions prevents regeneration:	The regen inhibit setting is set to ON.
  		The exhaust temperature is too low for regeneration.
  Reset Regen	The engine computer is running a reset regeneration.
  Parked Stby	The engine computer is requesting that you run a parked regeneration.
  Parked Regen	You initiated a parked regeneration request and the engine computer is processing the regeneration.
  Recov. Stby	The engine computer is requesting that you run a recovery regeneration.
  Recov. Regen	You initiated a recovery regeneration request and the engine computer is processing the regeneration.

• View the soot load which is measured as the percentage of soot in the DPF(Figure 36); refer to the soot-load table.

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

  

  Figure 36

  Soot-Load Table

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

Reset Regeneration

Caution

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

• Never operate the engine in an enclosed area.

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

• Never touch a hot exhaust system component.

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

Figure 37

• The high exhaust-temperature icon displays in the InfoCenter (Figure 37).

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

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

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

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

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

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

Periodic Reset Regeneration

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

Setting the Inhibit Regen

Reset Regeneration Only

Note: If you set the InfoCenter to inhibit regeneration, the InfoCenter displays ADVISORY #185 (Figure 38) every 15 minutes while the engine requests a reset regeneration.

Figure 38

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

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

1. Access the DPF Regeneration menu, press the center button to scroll down to the INHIBIT REGEN option, and press the right button to select the Inhibit Regen entry (Figure 39).

   

   Figure 39

2. Press the right button to change the inhibit regeneration setting from On to Off (Figure 39) or from Off to On (Figure 40).

   

   Figure 40

Allowing a Reset Regeneration

The InfoCenter displays the high exhaust-temperature icon when the reset regeneration is in process.

Note: If INHIBIT REGEN is set to ON, the InfoCenter displays ADVISORY #185 (Figure 41). Press button 3 to set inhibit regeneration setting to OFF and continue with the reset regeneration.

Figure 41

Note: If the engine exhaust temperature is too low, the InfoCenter displays ADVISORY #186 (Figure 42) to inform you to set the engine to full throttle (high idle).

Figure 42

Note: When the reset regeneration completes, the high exhaust-temperature disappears from the InfoCenter screen.

If the machine stalls or runs out of fuel, you may need to push it. You must first open both of the hydraulic bypass valves.

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

Changing to Machine Operation

1. Rotate each bypass valve clockwise 1 turn and hand tighten them (Figure 63).

   Note: Do not overtighten the bypass valves.

2. Torque the valves approximately 8 N∙m (71 in-lb) as shown in Figure 63.

Note: The machine does not drive unless the bypass valves are turned in.

Figure 63

1. Bypass valves

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

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

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

• Tie the machine down securely.

There are tie downs located at the front and rear sides of the machine (Figure 64).

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

• 2 on the front of the operator's platform

• Rear tire

Figure 64

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

1. Release the hood latches.

2. Lift up the hood until you can position the prop rod behind the frame tube (Figure 65).

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

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

5. Secure the hood latches.

   

   Figure 65

   1. Prop rod

The machine has grease fittings that you must lubricate regularly with No. 2 lithium grease. Lubricate the grease fittings immediately after every washing, regardless of interval specified.

1. Wipe the grease fittings clean so that foreign matter cannot be forced into the bearing or bushing (Figure 66).

2. Pump the grease into the fittings.

3. Wipe off any excess grease.

Figure 66

Shown with cutting unit installed

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

Note: Raise the machine off the floor with a jack and secure it with jack stands to allow better grease migration through both the upper and lower king-pin bushings. You should see grease purging out of both the top and the bottom of the axle casting/bushing assembly areas of all 4 kingpin assemblies (Figure 67).

Figure 67

Note: The 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 68). Changing the air filter before it is necessary only increases the chance of dirt entering the engine when you remove the filter.

Figure 68

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 69).

   

   Figure 69

   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 70). Replace the safety filter after every 3 primary filter services.

   

   Figure 70

   1. Air-cleaner safety filter

2. Reset the indicator (Figure 68) 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 73

• If engine faults , , or in the InfoCenter (Figure 74) display in the InfoCenter, clean the soot filter using the steps that follow:

  

  Figure 74

  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 75.

Figure 75

1. Clean the area around the filter head (Figure 76).

   

   Figure 76

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

In addition to the listed service interval, drain and clean the tank if the fuel system becomes contaminated or if you are storing the machine for an extended period. Use clean fuel to flush out the tank.

Inspect the fuel lines 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.

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 the temperature is cool.

Keep the top of the battery clean by washing it periodically with a brush dipped in ammonia or bicarbonate of 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 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 1 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).

Tilt the seat forward, and pull the panel off to access the fuses (Figure 77).

Figure 77

1. Fuse block

The fuse block for attachments are located under the seat (Figure 78).

Figure 78

1. Location of the fuse block

The cab fuses are located in the fuse box on the cab headliner (Figure 79).

Figure 79

1. Cover
2. Fuses

If you store the machine for 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 you store it 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, ensure that it is fully charged. The specific gravity of a fully charged battery is 1.265 to 1.299.

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 an uneven cut. Check the tires when they are cold to get the most accurate pressure reading.

Figure 80

1. Press the steering-selector switch rearward 4-wheels steering position (Figure 81).

   

   Figure 81

   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 the 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 anti freeze. 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 82). The coolant level should be between the marks on the side of the tank.

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

3. Install the expansion-tank cap.

   

   Figure 82

   1. Expansion tank

Keep the radiator clean to prevent the engine from overheating.

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

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 83). Rotate the cover to the side to expose the clean-out hole in the frame.

   

   Figure 83

   1. Clean-out cover

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

4. After you have thoroughly cleaned the radiator, remove any debris from the channel at the radiator base and around the frame.

5. Clean the engine compartment and the brake linkage.

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

7. 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 that 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 84).

   

   Figure 84

   1. Brake cables
   2. Front nuts

2. Tighten the rear nut to move the cable backward until brake pedals have 1.27 to 1.9 cm (1/2 to 3/4 inch) of free travel before the wheels lock up.

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

If the parking brake fails to engage, adjust the brake pawl.

1. Loosen the 2 screws securing the parking-brake pawl to the frame (Figure 85).

   

   Figure 85

   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 85).

3. Tighten the 2 screws locking the adjustment.

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

5. Check the adjustment and adjust it as required.

1. Ensure that the proper tension allows 10 mm (3/8 inch) deflection when a force of 4.4 kg (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 86). 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 86

   1. Mounting bolt
   2. Alternator

Note: If the machine has recently had the hydraulic fluid changed or the traction motors or hoses replaced, work out any air trapped in the system prior to performing this procedure. To do this, operate the machine in forward and reverse for a few minutes and then replenish the oil as required.

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

1. Park the machine on a level surface, engage the parking brake, lower the cutting unit to the floor, and shut off the engine.

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.

   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 you can perform this adjustment. This could cause personal injury.

   Keep your 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 87).

     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 87

     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. Shut off 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. Park the machine on a level surface, disengage the PTO, release the traction pedal to the NEUTRAL position, and engage 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 88).

   

   Figure 88

   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 in (away from the traction pedal).

5. Using your hand, push the traction pedal all the way forward, with light pressure, until it stops and hold it there.

   Note: 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 over loading the linkage by making sure the transmission does not move when you press the pedal to the stop.

7. Adjust the stop bolt out (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. To change the reverse speed, you can adjust the reverse stop bolt. To increase the reverse speed, adjust the stop bolt in; to decrease the reverse speed, adjust the stop bolt out.

The reservoir is filled at the factory with high-quality tractor transmission/hydraulic fluid. The recommended replacement fluid is as follows:

Toro Premium Transmission/Hydraulic Tractor 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.

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 No. 44-2500 from your authorized Toro distributor.

1. Park the machine on a level surface, release the traction pedal to the NEUTRAL position, and start the engine.

2. Run the engine at the lowest possible speed to purge the system of air.

   Important: Do not engage the PTO.

3. Raise the deck to extend the lift cylinders, shut off the engine, and remove the key.

4. Remove the hydraulic-filler cap (Figure 89) from the filler neck.

5. Remove the dipstick and wipe it with a clean rag (Figure 89).

6. Screw the dipstick all the way into the filler neck; then remove it, and check the level of the fluid (Figure 89).

   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.

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

8. Check all hoses and fittings for leaks.

   

   Figure 89

   1. Dipstick

Hydraulic reservoir capacity: approximately 17 L (18 US qt)

1. Disengage the PTO, release the traction pedal to the NEUTRAL position, and engage 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 90).

   

   Figure 90

   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 90).

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.

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

2. Open the hood and locate the washer-fluid bottle (Figure 91).

   

   Figure 91

   Washer-Fluid Bottle with Washer-Fluid Symbol

3. Fill the bottle with washer fluid as needed.

4. Close the hood.

1. Remove the screws and grates from both the in-cab and rear cab air filters (Figure 92 and Figure 93).

   

   Figure 92

   In-Cab Air Filter

   1. Filter
   2. Grate
   3. Screw
   

   Figure 93

   Rear Cab Air Filter

   1. Filter
   2. Grate
   3. Screw

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

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

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

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

2. Lift the 4 tabs on the air-conditioning screen (Figure 94) and remove the screen from the top of the cab.

   

   Figure 94

   1. Screen
   2. Tab (4)

3. Disconnect the plug and cord for the fans from the outlet (Figure 95).

   

   Figure 95

   1. Knob (2)
   2. Fan (2)
   3. Fan panel
   4. Plug and cord (2)

4. Remove the 2 knobs that secure the fan-panel assembly and fans to the underside of the cab top (Figure 95) and remove the assembly.

5. Clean the screen, air-conditioning duct, fans, and fan panel using low-pressure air no greater than 276 kPa (40 psi).

   Important: Do not use water to clean the condenser because moisture on the components attracts dirt and dust, which make the components more difficult to clean.

6. Install the fan-panel assembly and fans to the underside of the cab top with the 2 knobs that you loosened and removed in step 4.

7. Connect the cord for the fans that you disconnected in step 3 into the outlet.

8. Install the air-conditioning screen in the opening in the top of the cab and secure it by closing the 4 tabs on the screen.

Important: Use care around the cab seals and lights (Figure 96). If you are using a pressure washer, keep the washer wand at least 0.6 m (2 ft) away from the machine. Do not use the pressure washer directly on the cab seals and lights or under the rear overhang.

Figure 96

1. Seal
2. Light
3. Keep wand 0.6 m (2 ft) away.
4. Do not pressure-wash under the rear overhang.

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