Groundsmaster® 7210 Series Traction Unit

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.

Lowering the Roll Bar

Lower the roll bar as shown in Figure 11.

Note: Push the bar forward to relieve pressure on the pins.

Figure 10

Note: Secure the roll bar so that it does not damage the hood.

Raising the Roll Bar

Raise the roll bar as shown in Figure 10.

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.

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 stop pin into different hole locations.

1. With the engine running, push the deck-lift switch up until the cutting unit is fully raised and release the switch immediately (Figure 27).

2. Rotate the stop pin until the roll pin in it lines up with the slots in the holes in the height-of-cut bracket and remove it (Figure 12).

3. Select a hole in the height-of-cut bracket corresponding to the height of cut desired, insert the pin, and rotate it down to lock it in place (Figure 12).

   Note: There are 4 rows of hole positions (Figure 12). 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 inch) 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 inch) position.

   

   Figure 12

   1. Stop pin
   2. Height-of-cut stop

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

The seat moves forward and backward. Position the seat where you have the best control of the machine and are most comfortable.

To adjust, move the lever sideways to unlock the seat (Figure 15).

Figure 15

The seat is adjustable to provide a smooth and comfortable ride. Position the seat where you are most comfortable.

To adjust it, turn the knob in front either direction to provide the best comfort (Figure 16).

Figure 16

1. Seat-suspension knob

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

1. Use the seat position adjustment lever to slide the seat all the way forward.

2. Pull the seat latch forward and lift up to unlatch the seat (Figure 17).

   

   Figure 17

   1. Seat latch

The display shows information about your machine such as the operating status, various diagnostics, and other information about the machine. There are multiple screens on the display. You can switch between the screens at any time by pressing any of the display buttons and then selecting the appropriate directional arrow.

Figure 18

1. Indicator light
2. Display brightness sensor
3. Navigational button— up
4. Back/exit button
5. Navigational button— decrease/ left
6. Navigational button— down
7. Navigational button— increase/ right
8. Enter/select button

Note: The purpose of each button may change depending on what is required at the time. Each button is labeled with an icon displaying its current function.

InfoCenter Icon Description

	Hour meter
	Page change
	The glow plugs are active.
	The operator must sit in the seat.
	The parking brake is engaged.
	Engine coolant temperature (°C or °F)
	Reset-standby regeneration request
	Parked or recovery regeneration request
	A parked or recovery regeneration is processing.
	High exhaust temperature
	NOx control diagnosis malfunction; drive the machine back to the shop and contact your authorized Toro distributor (software version U and later).
	The power take-off is disabled.
	The PTO is on.
	Battery
	Warning
	Active
	Inactive
	Previous
	Next
	The cutting units are raising.
	The cutting units are lowering.
	Previous screen
	Fast
	Slow
	Increase value
	Decrease value
	Menu
	Scroll up/down
	Scroll left/right
	Locked
	PIN Passcode

To access the InfoCenter menu system, press the menu access button while at the main screen. This brings you to the main menu. Refer to the following tables for a synopsis of the options available from the menus:

Main Menu—Menu Item	Description
Service	The Service menu contains information on the machine for DPF regeneration.
Settings	The Settings menu allows you to customize and modify configuration variables on the display.
Machine Settings	The Machine Settings menu allows you to adjust the slope sensor thresholds.
About	The About menu lists the model number, serial number, and software version of your machine.

Settings—Menu Item	Description
Enter PIN	Allows a person (superintendent/mechanic) authorized by your company with the PIN code to access protected menus.
Protected Settings	Allows a person authorized by your company with the PIN code to access protected settings.
Reset Defaults	Resets the settings to the default settings.
Backlight	Controls the brightness of the LCD display.
Language	Controls the language used on the InfoCenter*.
Units	Controls the units used on the InfoCenter (English or Metric).

Note: The Machine Settings menu will only show when the PIN is entered.

Machine Settings—Menu Item	Description
Slope Sensor Installed	Indicates there is a slope sensor installed.

About—Menu Item	Description
Model	Lists the model number of the machine.
SN	Lists the serial number of the machine.
S/W Rev	Lists the software revision of the primary controller.
Stage V	Shows yes or no depending on the engine.
XDM-2700	Lists the software revision of the InfoCenter
CAN Statistics	Lists the machine communication bus status

Protected under Protected Menus—accessible only by entering PIN

There are operating configuration settings that are adjustable within the SETTINGS of the InfoCenter. To lock these settings, use the PROTECTED MENU.

Note: At the time of delivery, the initial password code is programmed by your distributor.

Figure 21

1. Diagnostic light

• Flashing red—active fault

• Solid red—active advisory

• Solid green—normal operation

• Blinking green—updating code

Always engage the parking brake when you stop the machine or leave it unattended.

Engaging the Parking Brake

Warning

The parking brake may not hold the machine parked on a slope and could cause personal injury or property damage.

Do not park the machine on slopes unless the wheels are chocked or blocked.

Figure 22

Releasing the Parking Brake

Figure 23

Note: The glow plug light illuminates for 6 seconds when you turn the ignition key to the RUN position. Turn the ignition to the START position after the light goes out.

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

Important: Operate the machine with the throttle lever in the SLOW position in both the forward and reverse directions for 1 to 2 minutes after changing the engine oil, overhauling either the engine, transmission, or wheel motor, and when you start the engine for the first time. Operate the lift lever and PTO lever to ensure that they operate properly. Shut the engine off, check fluid levels, and check for oil leaks, loose parts, and any other noticeable malfunctions.

Figure 24

Note: Leave the throttle midway between the SLOW and FAST positions until the engine and hydraulic system warm up.

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 running powered attachments.

1. Release the parking brake.

   Note: The engine shuts off if you move the motion-control levers out of the NEUTRAL-LOCK position with the parking brake engaged.

2. Move the levers to the center, unlocked position.

3. Drive the machine as follows:

   • To move straight forward, slowly push the motion-control levers forward (Figure 25).

   • To move straight rearward, slowly pull the motion-control levers rearward (Figure 25).

   • To turn, slow the machine by pulling back on both levers and then push forward on the lever on the opposite side from which you want to turn (Figure 25).

   • To stop, pull the motion-control levers to the NEUTRAL position.

   Note: The farther you move the motion-control levers in either direction, the faster the machine moves in that direction.

   

   Figure 25

   1. Motion-control lever—NEUTRAL-LOCK position
   2. Center, unlocked position
   3. Forward
   4. Backward
   5. Front of the machine

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

1. Move the machine to the job site.

2. Whenever possible, set the throttle to high idle.

3. Engage the PTO switch.

4. Gradually move the motion-control levers 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) removes soot from the engine exhaust.

The DPF regeneration process uses heat from the engine exhaust that is increased by the catalyst to reduce accumulated soot into ash.

To keep the DPF clean, remember the following:

• Run the engine at full engine speed when possible to promote DPF self-cleaning.

• Use the correct engine oil.

• Minimize the amount of time that you idle the engine.

• Use only ultra low sulfur diesel fuel.

Operate and maintain your machine with the function of the DPF in mind. Engine under load 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 DPF.

Understanding the Regeneration Icons

Icon	Icon Definition
	• Parked or recovery regeneration icon-regeneration is requested.
	• Perform the regeneration immediately.
	• A regeneration is acknowledged and the request is processing.
	• A regeneration is in progress and the exhaust temperature is elevated.
	• NOx control system malfunction; the machine requires service.

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 highengine 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.
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.
Reset	Occurs every 100 hours	• When the high exhaust-temperature icon is displayed in the InfoCenter, a regeneration is in progress.
	Also occurs if normal engine operation surpasses the allowed soot accumulation amount within the filter
		• During reset regeneration, the engine computer maintains an elevated engine speed to ensure filter 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 determines that the automatic DPF cleaning has not been sufficient.	• When the reset-standby/parked or recovery regeneration icon or a regeneration is requested.
	Also occurs because you initiate a parked regeneration
	May occur because the inhibit regen has been initiated and has disabled the automatic DPF cleaning from occuring	• 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.
Recovery	Occurs because the request for parked recovery has been ignored, allowing the DPF to be critically plugged	• When the reset-standby/parked or recovery regeneration icon 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.

In an emergency, you can move the machine a very short distance by actuating the bypass valves in the hydraulic pump and pushing the machine.

Important: The bypass valves must be open whenever you push or tow the machine. Close the valves once you have pushed or towed the machine to the desired location.

1. Lift the seat; refer to Unlatching the Seat

2. Locate the bypass valves (Figure 33) and rotate each bypass valve counterclockwise 1 turn.

   Note: This allows hydraulic fluid to bypass the pump, enabling the wheels to turn.

   Important: Do not rotate the bypass valves more than 1 turn. This prevents valves from coming out of the body and causing fluid to run out.

   

   Figure 33

   1. Right bypass valve
   2. Left bypass valve

3. Ensure that the parking brake is disengaged and push the machine to the desired location.

4. Close the valves by rotating each valve 1 clockwise turn (Figure 33).

   Note: Do not overtighten the valves.

5. Torque the valves to approximately 8 N∙m (71 in-lb).

   Important: Ensure that the bypass valves are closed before you start the engine. Running the engine with open bypass valves causes the transmission to overheat.

Use a heavy-duty trailer or truck to haul the machine. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets, or bystanders avoid injury.

1. If you are using a trailer, connect it to the towing vehicle, and connect the safety chains.

2. If applicable, connect the trailer brakes.

3. Load the machine onto the trailer or truck; refer to Loading the Machine.

4. Shut off the engine, remove the key, engage the parking brake, and close the fuel valve.

5. Use the tie-down loops on the machine to securely fasten it to the trailer or truck with straps, chains, cable, or ropes (Figure 34).

   

   Figure 34

   1. Traction unit tie-down loops

Use extreme caution when loading or unloading machines onto a trailer or a truck. Use a full-width ramp that is wider than the machine for this procedure. Drive the machine up ramps in reverse and drive it down ramps in a forward direction (Figure 35).

Figure 35

1. Drive the machine up the ramp in reverse.
2. Drive the machine forward down the ramp.

Important: Do not use narrow individual ramps for each side of the machine.

Figure 36

1. Full-width ramp in stowed position
2. Side view of full-width ramp in loading position
3. Not greater than 15°
4. Ramp is at least 4 times as long as the height of the trailer or truck bed to the ground
5. “H” indicates the height of the trailer or truck bed to the ground.
6. Trailer

The machine has grease fittings that you must lubricate regularly with No. 2 lithium grease. Lubricate more often in dirty or dusty conditions because dirt can get into the bearings and bushings and cause accelerated wear.

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

2. Pump grease into the fittings.

3. Wipe off excess grease.

Note: Improper wash-down procedures can negatively affect bearing life. Do not wash down the machine when it is still hot and avoid directing high-pressure or high-volume spray at the bearings or seals.

The gear box is designed to operate with SAE EP90W gear lube. Although the gearbox comes from the factory with lubricant, check the level of the lubricant in the cutting unit before operating it and as recommended in the Checking the Cutting-Unit Gearbox Lubricant.

1. Check the air-cleaner body for damage, which could possibly cause an air leak. Replace a damaged air-cleaner body.

2. Check the air-intake system for leaks, damage, or loose hose clamps.

3. Service the air-cleaner filter (Figure 38).

   Important: Do not over-service the air filter.

   

   Figure 38

   1. Air-cleaner cover
   2. Gasket
   3. Filter
   4. Air-cleaner body
   5. Air-cleaner indicator
   6. Air-cleaner latch
   7. Rubber outlet valve

4. Ensure that the cover is seated correctly and seals with the air-cleaner body.

Note: If the foam gasket in the cover is damaged, replace it.

Important: Avoid using high-pressure air, which could force dirt through the filter into the intake tract.

Important: Do not clean the used filter to avoid damage to the filter media.

Important: Do not use a damaged filter.

Important: Do not apply pressure to the flexible center of the filter.

Figure 39

If engine faults , , or in the InfoCenter (Figure 42) display in the InfoCenter, clean the soot filter using the steps that follow:

Figure 42

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.

1. Clean the area around the fuel filter head (Figure 43).

   

   Figure 43

   1. Fuel Filter head
   2. Fuel Filter

2. Remove the filter and clean the filter head mounting surface (Figure 43).

3. Lubricate the filter gasket with clean lubricating engine oil. Refer to the engine owner's manual, included with the machine, for additional information.

4. Install the dry filter canister, by hand, until the gasket contacts the filter head, then rotate it an additional 1/2 turn.

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

Service the water separator as shown in Figure 44.

After replacing the water separator, turn the key to ON for 10 seconds, but do not start the engine. Turn the key off and repeat this 2 more times.

Figure 44

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.

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 you are storing the machine more than 30 days, remove the battery and charge it fully. Either store it on a shelf or on the machine. Do not connect the cables if you store it on the machine. Store the battery in a cool environment to prevent the battery from discharging rapidly. To prevent the battery from freezing, make sure it is fully charged. The specific gravity of a fully charged battery is 1.265 to 1.299.

The fuses are located under the control panel. Access them through the side panel cover (Figure 45). To open the side panel cover, release the 2 latches and pull out on it.

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 if any are blown.

Important: 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 (Figure 46).

Note: If a fuse blows frequently, you may have a short in the electrical system and should have it serviced by a qualified service technician.

Figure 45

1. Latch
2. Side panel cover

Figure 46

Maintain the air pressure in the front and rear tires (Figure 47). The correct air pressure is 124 kPa (15 psi) in the rear tires and 103 kPa (25 psi) in the caster wheels. Uneven tire pressure can cause an uneven cut.

Note: Check the tires when they are cold to get the most accurate pressure reading.

Figure 47

1. Obtain a new caster-wheel assembly, cone bearings, and bearing seals from your authorized Toro distributor.

2. Remove the locknut from the bolt (Figure 48).

   

   Figure 48

   1. Locknut
   2. Bearing spacer
   3. Outer bearing seal
   4. Cone bearing
   5. Inner bearing seal
   6. Spacer
   7. Caster wheel
   8. Axle bolt
   9. Caster fork

3. Grasp the caster wheel and slide the bolt out of the fork or pivot arm.

4. Discard the old caster wheel and bearings.

5. Assemble the caster wheel by pushing the cone bearings and seals, packed with grease, into the wheel hub, positioned as shown in Figure 48.

6. Slide the spacer into the wheel hub through the bearings, captivating the spacer inside the wheel hub with 2 bearing spacers.

   Important: Ensure that the seal lips are not folded inward.

7. Install the caster-wheel assembly between the castor fork and secure it in place with the bolt and locknut.

8. Tighten the locknut until the wheel no longer spins freely, then back it off just until the wheel spins freely.

9. Attach a grease gun to the grease fitting on the caster wheel and fill it with No. 2 lithium grease.

The coolant reservoir is filled at the factory with a 50/50 solution of water and ethylene glycol base extended-life coolant.

Important: Use only commercially available coolants that meet the specifications listed in the Extended Life Coolant Standards Table.Do not use conventional (green) inorganic-acid technology (IAT) coolant in your machine. Do not mix conventional coolant with extended-life coolant.

Coolant Type Table

Extended Life Coolant Standards

Important: Coolant concentration should be a 50/50 mixture of coolant to water.

• Preferred: When mixing coolant from a concentrate, mix it with distilled water.

• Preferred option: If distilled water is not available, use a pre-mix coolant instead of a concentrate.

• Minimum requirement: If distilled water and pre-mix coolant are not available, mix concentrated coolant with clean drinkable water.

The cooling system is filled with a 50/50 solution of water and permanent ethylene glycol anti freeze. 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 49).

   Note: The coolant level should be between the marks on the side of the tank.

   

   Figure 49

   1. Expansion tank

2. If coolant level is low, remove the expansion-tank cap and replenish the system.

   Important: Do not overfill.

3. Install the expansion-tank cap.

Clean the radiator to prevent the engine from overheating.

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

Clean the radiator as follows:

1. Open the hood.

2. Working from the fan side of the radiator, blow out debris with low pressure (345 kPa or 50 psi), compressed air. Repeat from the front of the radiator and the other fan side.

   Important: Do not use water.

3. After you thoroughly clean the radiator, clean out debris that may have collected in the channel at the radiator base.

4. Close the hood.

1. Stop the machine, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and remove the ignition key.

2. Remove the bolts securing the front panel and remove the panel (Figure 50).

   

   Figure 50

   1. Bolt
   2. Control panel

3. Loosen the 2 jam nuts securing the parking-brake interlock switch to the mounting bracket.

   

   Figure 51

   1. Brake-shaft sensor
   2. 4 mm (5/32 inch)
   3. Jam nut
   4. Parking-brake interlock switch

4. Move the switch up or down on the bracket until the distance between the brake-shaft sensor and the switch plunger is 4 mm (5/32 inch) as shown in Figure 51.

   Note: Make sure that the brake-shaft sensor does not contact the switch plunger.

5. Secure the switch jam nuts.

6. Test the adjustment as follows:

   1. Ensure that the parking brake is engaged and you are not sitting on the seat, then start the engine.

   2. Move the control levers out of the NEUTRAL-LOCK position.

      Note: The engine should shut off. If not, check the adjustment that you made to the switch.

7. Install the front panel.

1. Apply 44 N (10 lb) of force to the alternator belt, midway between the pulleys.

2. If the deflection is not 10 mm (3/8 inch), loosen the alternator mounting bolts (Figure 52).

   

   Figure 52

   1. Mounting bolt
   2. Alternator

3. Increase or decrease the alternator-belt tension.

4. Tighten the mounting bolts.

5. Check the deflection of the belt again to ensure that the tension is correct.

1. Stop the machine, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and remove the ignition key.

2. Remove the bolts securing the front panel and remove the panel (Figure 53).

   

   Figure 53

   1. Bolt
   2. Control panel

3. Loosen the 2 screws securing the interlock switch (Figure 54).

   

   Figure 54

   1. Control lever
   2. Neutral-interlock switch
   3. Screw
   4. 0.4 to 1 mm (0.015 to 0.045 inch)

4. Holding the control lever against the frame, move the switch toward the lever until the distance between the lever and switch body is 0.4 to 1 mm (0.015 to 0.045 inch) as shown in Figure 54.

5. Secure the switch.

6. Repeat steps 3 to 5 for the other lever.

7. Install the front panel.

If the motion-control levers do not align with the neutral slots when released from the REVERSE position, adjustment is required. Adjust each lever, spring, and rod separately.

1. Disengage the PTO, move the control lever to the NEUTRAL-LOCK 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. Remove the bolts securing the front panel and remove the panel (Figure 55).

   

   Figure 55

   1. Bolt
   2. Control panel

4. Move the control lever to the NEUTRAL position but not locked (Figure 57).

5. Pull the lever back until the clevis pin (on an arm above the pivot shaft) contacts the end of the slot (just beginning to put pressure on the spring) as shown in Figure 56.

   

   Figure 56

   1. Clevis pin
   2. Slot
   3. Jam nut
   4. Adjustment bolt
   5. Yoke

6. Check where the control lever is relative to notch in the console (Figure 57).

   Note: The control lever should be centered, allowing lever to pivot outward to the NEUTRAL-LOCK position.

   

   Figure 57

   1. NEUTRAL position
   2. NEUTRAL-LOCK position

7. If adjustment is needed, loosen the nut and jam nut against the yoke (Figure 56).

8. Applying slight rearward pressure on the motion-control lever, turn the head of the adjustment bolt in the appropriate direction until the control lever is centered in the NEUTRAL-LOCK position (Figure 56).

   Note: Rearward pressure on the lever keeps the pin at the end of the slot and allow the adjustment bolt to move the lever to the appropriate position.

9. Tighten the nut and jam nut (Figure 56).

10. Repeat steps 4 through 9 for the other control lever.

11. Install the front panel.

Make this adjustment with the drive wheels turning.

1. Raise the frame onto stable jack stands so that the drive wheels can rotate freely.

2. Slide the seat forward, unlatch it, and swing it up and forward.

3. Disconnect the electrical connector from the seat safety switch.

4. Temporarily install a jumper wire across the terminals in the wire harness connector.

5. Start the engine, ensure that the throttle lever is midway between the FAST and SLOW positions, and release the parking brake.

   Note: The motion-control levers must be in the NEUTRAL-LOCK position while you make any adjustments.

6. Adjust the pump rod length on one side by rotating the hex shaft, in the appropriate direction, until the corresponding wheel is still or slightly creeping in reverse (Figure 58).

   

   Figure 58

   1. Right pump rod
   2. Left pump rod
   3. Ball joint
   4. Bolt
   5. Jam nut
   6. Hex shaft
   7. Ball joint

7. Move the motion-control lever forward and reverse, then back to neutral.

   Note: The wheel must stop turning or slightly creep in reverse.

8. Move the throttle lever to the FAST position.

   Note: Make sure that the wheel remains stopped or slightly creeps in reverse; adjust it if necessary.

9. Repeat steps 6 through 8 for the other side of the machine.

10. Tighten the jam nuts at the ball joints (Figure 56).

11. Move the throttle lever to the SLOW position and shut off the engine.

12. Remove the jumper wire from the wire harness connector and plug the connector into the seat switch.

    Warning

    The electrical system does not perform proper safety shutoff with the jumper wire installed.

    • Remove the jumper wire from the wire harness connector and plug the connector into the seat switch when you complete adjustment.

    • Never operate the machine with the jumper installed and the seat switch bypassed.

13. Lower the seat into position.

14. Remove the jack stands.

1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK 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. Remove the bolts securing the front panel and remove the panel (Figure 59).

   

   Figure 59

   1. Bolt
   2. Control panel

4. Loosen the jam nut on the stop bolt for a control lever (Figure 60).

   

   Figure 60

   1. Stop bolt
   2. Control lever
   3. Jam nut
   4. 1.5 mm (0.060 inch)

5. Thread the stop bolt all the way in (away from the control lever).

6. Push the control lever all the way forward until it stops and hold it there.

7. Thread the stop bolt out (toward the control lever) until there is a gap of 1.5 mm (0.060 inch) between the head of the stop bolt and the control lever.

   Note: If you want to reduce the maximum machine speed, back each stop bolt out an equal amount toward the control lever until you reach the desired maximum speed. You may need to test your adjustment several times.

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

9. Repeat steps 4 through 8 for the other control lever.

10. Install the front panel.

11. Ensure that the machine drives straight and does not turn when both control levers are pushed all the way forward.

    Note: If the machine turns, the stop bolts are not evenly set and you need to adjust them further.

1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK 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 bolts securing the control levers (Figure 61).

   

   Figure 61

   1. Control lever
   2. Control-lever post
   3. Bolts

4. Have someone push the control-lever posts (not the control levers) all the way forward into the maximum-speed position and hold them there.

5. Adjust the control levers so that they line up and tighten the bolts, securing the levers to the posts (Figure 62).

   

   Figure 62

The reservoir is approximately 4.7 liters (5 quarts).

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.

Check the level of the hydraulic fluid before you first start the engine and daily thereafter.

1. Position the machine on a level surface.

2. Move the motion-control levers to the NEUTRAL-LOCK position and start the engine.

   Note: Run the engine at the lowest possible rpm 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. Raise the seat to access the hydraulic fluid tank.

5. Remove the hydraulic fill cap from the filler neck (Figure 63).

   

   Figure 63

   1. Dipstick
   2. Fill cap

6. Remove the dipstick and wipe it with a clean rag (Figure 63).

7. Place the dipstick into the filler neck; then remove it and check the level of fluid (Figure 63).

   Note: 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.

   Important: Do not overfill.

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

9. Check all hoses and fittings for leaks.

1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK 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 64).

   

   Figure 64

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

4. Clean the area around the hydraulic fluid filter and remove the filter (Figure 64).

5. Immediately install a new hydraulic fluid filter.

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

7. Fill the reservoir to the proper level (approximately 5.7 L or 6 US qt); refer to Checking the Hydraulic System.

8. Start the engine and check for oil 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. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK 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. Raise the cutting unit to the transport position.

4. Raise the front of the machine using jack stands.

5. Thoroughly clean the underside of the cutting unit with water.

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