Grandstand® 32in or 36in HDM

Perform the following daily procedures before operating the machine:

• Checking the Engine-Oil Level

• Checking the Mower Blades

• Checking for Loose Hardware

Checking the Safety Interlock System

Important: It is essential that operator safety mechanisms be connected and in proper operating condition prior to use.

Note: If the machine does not pass any of these tests, do not operate. Contact an Authorized Service Dealer.

Checking the Normal Engine Starting Chart

Note: It is not necessary for the operator to be on the platform to start the engine.

		System
		PTO (Blades)	Motion Control Levers	Outcome
	State of System	Disengaged	Both levers out (neutral)	Starter should crank
		Up position, but blades disengaged*	Both levers out (neutral)	Starter should crank

*Note: The starter will crank with the PTO switch in the “ON” (pulled up) position; however, the system will disengage the PTO and a reset PTO error will occur. Engaging the PTO will require the operator to reset the PTO switch by turning it “OFF” (pushed down) and then turning it “ON”.

Checking the Engine Starting Circuit Chart

Note: The state of system item that is bold is being checked in each scenario.

		System
		PTO (Blades)	Motion Control Levers	Outcome
	State of System	Disengaged	Both levers not in neutral	Starter must not crank
		Engaged	Both levers in neutral	Starter must not crank

Checking the Shutdown Circuit Chart

Note: The state of system item(s) that is bold is being checked in each scenario.

		System
		Engine	PTO (Blades)	Motion Control Levers	Outcome
	State of System	Running idle (1/3 throttle)	Engaged	Both levers out (neutral lock)	PTO must begin shutdown within 1 second; engine stays running.

		System
		Engine	Parking Brake	Motion Control Levers	Outcome
	State of System	Running idle (1/3 throttle)	Engaged	Both levers not in neutral	Engine must begin shutdown within 1 second

New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine. Allow 40 to 50 hours of break-in time for new machines to develop full power and best performance.

Rotate the valve and align with the fuel line open.

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

When the motion control levers are positioned fully outward (apart), the drive system is in the PTO disengage position (Figure 10).

Note: The “N” LCD indicator appears when both levers are in the neutral lock position.

When the motion control levers are moved directly inward (together) the drive system is in the neutral operate position.

Figure 10

1. Neutral lock position (handles out)
2. Neutral operate position (handles in)
3. Front of machine
4. Reverse
5. Rear reference bar
6. Front reference/speed control bar
7. Forward
8. Adjustment hole

1. Insert a allen wrench (7/32 inch) through the hole on one side of the control tower panel. Place a wrench (9/16 inch) on the corresponding nut located underneath the control tower. Loosen the bolt and repeat for the opposite side of the front reference bar (Figure 10).

2. Rotate the bar forward or rearward, limiting the forward travel of the control levers until the desired maximum forward speed is achieved.

3. Tighten the bolts to lock the reference bar in place.

The cutting height of the mower deck is adjusted from 2.54 cm to 11.43 cm (1 to 4.5 inches) in 6.35 mm (1/4 inch) increments.

1. Stop the machine and move the motion control levers outward to the neutral locked position.

2. Disengage the PTO switch.

3. Raise and lock the deck to the 4.5 inch (11.43 cm) transport position (Figure 13).

   The deck is raised by pulling the deck lift handle rearward and to the right to place it into the transport lock position.

   Note: When changing the cutting height positions, always come to a complete stop and disengage the PTO.

   

   Figure 13

   1. Deck lift handle

4. Insert the height adjustment pin into the hole corresponding to the desired cutting height.

   See the decal on the top of the deck lift plate for cut heights.

5. Pull the deck lift handle rearward, press the release button, and push slowly downward to allow the deck to lower to the cutting height.

The operator’s platform on the machine can be adjusted for ride comfort and has different 3 settings.

1. Stop the machine and move the motion control levers outward to the neutral locked position.

2. Engage the park brake.

3. Stop the engine, remove the key, and wait for all moving parts to stop.

4. Remove and retain the pad from the operator’s platform.

5. Under the platform, loosen both nuts (5/16 inch) located inside the isolators. Do not remove the nuts completely.

6. On each side, move the isolators to the desired comfort level based on one of the 3 slots (Figure 14).

   • For a softer ride, move both of the isolators forward or closer to the platform pivot point.

   • For a firmer ride, move the isolators rearward or away from the platform pivot point.

   

   Figure 14

   1. Soft
   2. Moderate (center)
   3. Firm
   4. Bolt

7. Once both sides are adjusted to the same slot location, tighten the nuts. Reinstall the platform pad.

It is recommended to change the anti-scalp roller position when the height of cut has changed

1. Stop the machine and move the drive levers to the neutral lock position.

2. Disengage the PTO.

3. Engage the parking brake.

4. Stop the engine, remove the key, and wait for all moving parts to stop.

5. After adjusting the height of cut, adjust the anti-scalp rollers by removing the nyloc nut, spring disc washer, axle roller, and bolt.

6. Adjust anti-scalp rollers for normal operating conditions. Place rollers in one of the positions shown in Figure 15. Rollers will maintain 19 mm (3/4 inches) clearance to the ground to minimize gouging and roller wear or damage.

   Note: For maximum deck flotation, place rollers one hole position lower. The rollers should maintain 6.35 mm (1/4 inch) clearance to ground. Do not adjust the rollers to support the deck.

   Note: The roller may need to be removed when mowing at 25 mm (1 inch).

   

   Figure 15

   For cutting heights above 90 mm (3.5 inches) use the bottom hole. The rollers will still be effective against scalping.

   1. Anti-scalp roller mounting bracket
   2. 51 mm (2.0 inches) cutting height
   3. 64 mm (2.5 inches) cutting height
   4. 76 mm (3.0 inches) cutting height
   5. 90 mm (3.5 inches) cutting height

7. Ensure the roller bolts are installed with the spring disc washer between head of the bolt and mounting bracket.

8. Torque the nyloc nut (3/8 inch) to 68 to 75 N∙m (50 to 55 ft-lb) (Figure 16).

   

   Figure 16

   1. Anti-scalp roller
   2. Nyloc nut (3/8 inch)
   3. Axle roller
   4. Grade B bolt (3/8 x 3-3/4 inches)
   5. Spring disc washer (cone towards bolt)

The pad can be locked open to allow access to the hydro oil, pumps, ground drive belt, rotating screen, oil dipstick, and the fuel shut-off valves.

1. Lower the platform.

2. Lift the thigh pad all the way up. The pad will lock in an upwards position.

   

   Figure 17

   1. Thigh pad
   2. Wireform
   3. Released position
   4. Locked position

3. Perform any maintenance or adjustment on the machine.

4. Lift up on the wireform on the right side under the pad and lower the pad.

1. Raise and lock the thigh pad.

2. Grab the top of the rear guard and pull rearward.

3. The top of the rear guard will pop loose from the brake shaft. Lift the guard from the slots in the frame and remove.

   

   Figure 18

   1. Rear guard
   2. Slot

To reinstall the rear guard, insert the three tabs into the slots in the bottom of the frame (Figure 18). Push the guard forward and snap over the brake shaft.

Note: See the chart for the service intervals.

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

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

3. Lubricate fittings with NLGI grade #2 multi-purpose gun grease.

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

   Lubrication Chart

   Fitting Locations	Initial Pumps	Number of Places	Service Interval
   1. Deck Belt Idler Pivot	1	1	Yearly

   

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

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

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

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

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

3. Drain oil while engine is warm from operation.

4. Lift and lock the thigh pad.

5. Remove and retain the rear guard.

6. Remove and retain the knob, washer, and air deflector located under the machine.

   

   Figure 19

   1. Air deflector
   2. Knob and washer

7. The oil drain valve is located on the left side of the engine.

   Place the pan under the machine to catch the oil. Loosen the oil drain valve and allow the oil to drain. Tighten the oil drain valve.

8. Replace the oil filter per the Engine Owner's Manual. Clean around the oil filter and carefully remove the filter by unscrewing it. Make sure no oil drains onto the belt drive or clutch through the holes in the engine deck. Before the new filter is installed, apply a thin coating of oil on the surface of the rubber seal. Turn filter clockwise until rubber seal contacts the filter adapter, then tighten filter an additional 2/3 to 3/4 turn.

9. Clean around oil fill cap and remove cap. Fill to specified capacity and replace cap.

10. Use oil recommended in the Checking the Engine-Oil Level section. Do not overfill. Start the engine and check for leaks. Stop engine and recheck oil level.

11. Wipe up any spilled oil from engine deck mounting surfaces.

12. Reinstall the air deflector and rear guard.

13. Lower the thigh pad.

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

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

3. Complete the check with the engine cold.

4. Clean the area around dipstick. Remove the dipstick and wipe oil off. Reinsert the dipstick according to the engine manufacturer's recommendations. Remove the dipstick and read the oil level.

5. If the oil level is low, wipe off the area around the oil fill cap, remove the cap and fill to the FULL mark on the dipstick. Refer to the Engine Owner's Manual for an appropriate API rating and viscosity. Do not overfill.

Important: Do not operate the engine with the oil level below the LOW (or ADD) mark on the dipstick, or over the FULL mark.

Remove spark plugs, check condition and reset gaps, or replace with new plugs. See Engine Owner's Manual.

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

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

3. Wait for muffler to cool.

4. If any breaks in the screen or welds are observed, replace arrester.

5. If plugging of the screen is observed, remove the arrester and shake loose particles out of the arrester and clean screen with a wire brush (soak in solvent if necessary). Reinstall the arrester on exhaust outlet.

A fuel filter is installed in the fuel line between the fuel tank and the engine. Replace when necessary.

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

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

Charge batteries in an open well ventilated area, away from spark and flames. Unplug charger before connecting or disconnecting from battery. Wear protective clothing and use insulated tools.

Check the voltage of the battery with a digital voltmeter or with the message display When the ignition is set to the accessory mode, the module will display the battery voltage. If the voltage is less than 12.4 volts, the battery may need to be charged.

Important: Make sure the negative battery cable is disconnected and the battery charger used for charging the battery should have an output of 16 volts and 7 amps or less to avoid damaging the battery (see chart for recommended charger settings).

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

   Caution

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

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

   Danger

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

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

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

   Caution

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

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

   Note: The following instructions are adapted from the SAE J1494 Rev. Dec. 2001 – Battery Booster Cables – Surface Vehicle Recommended Practice (SAE – Society of Automotive Engineers).

   Warning

   Batteries contain acid and produce explosive gases.

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

   • Do not lean over the batteries.

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

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

   

   Figure 20

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

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

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

6. Make the final connection on the engine block of the stalled vehicle (no to the negative post) away from the battery. Stand back.

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

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

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

3. Check the tire pressure in drive tires.

4. Inflate the drive tires to 83 to 97 kPa (12 to 14 psi).

5. Semi-pneumatic caster tires do not need to be inflated.

Check and torque the nut on the wheel motor tapered shaft to 156 to 183 N∙m (115 to 135 ft-lb).

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

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

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

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

3. When the park brake is released, the brake bars should lift off the tires and the hand lever should travel forward. When the brake is disengaged, the gap between the brake snubber teeth and drive tire should measure 16 to 19 mm (5/8 to 3/4 inch) (Figure 21).

   

   Figure 21

   1. Tire
   2. Brake shaft arm
   3. 16 to 19 mm (5/8 to 3/4 inch)

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

5. Remove and retain the rear guard.

6. To adjust the brake, loosen the jam nut at the lower end of the ball joint. and retain the hairpin and washer on the brake linkage rod. Turn the 2 jam nuts on the brake linkage rod until the distance between the 2 ball joints is reached as shown in Figure 22. Turn the brake linkage rod clockwise to decrease the distance and counterclockwise to increase the distance.

   

   Figure 22

   1. Lower jam nut
   2. 2 jam nuts
   3. 12.5–12.8 cm (4.94–5.06 inches)

7. Tighten the jam nut at the lower end of the ball joint.

8. Install the rear guard.

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

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

3. Look on the top side of the cutting deck to check the mower blade drive belt condition.

4. Look under the engine deck to check the pump drive belt condition.

5. Check all idler arms to ensure they pivot freely.

Self-tensioning - No adjustment necessary.

Self-tensioning - No adjustment necessary.

If the motion control levers do not align horizontally, adjust one or both levers.

Note: Adjust the horizontal alignment before the front to back alignment.

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

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

3. Push the right motion control lever down out of the PTO disengage position.

4. Check if the right motion control lever aligns horizontally with the left motion control lever.

   

   Figure 23

   1. Left motion control lever
   2. Right motion control lever
   3. Right motion control lever in PTO disengage position
   4. Check the horizontal alignment here

5. To adjust the right motion control lever horizontally, the cam needs to be adjusted.

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

7. Loosen the nut holding the cam.

   

   Figure 24

   1. Cam nut

8. Adjust the cam until it aligns with the left motion control lever and tighten the nut for the cam.

   Note: Moving the flat portion of the cam clockwise lowers the handle, while moving it counterclockwise raises the handle

   Important: Make sure the flat portion of the cam does not go above a vertical position (right or left), or damage may occur to the switch.

9. Tighten the switch screws.

Located in the front inside the tower. Rotating the pump linkage with a wrench (9/16 inch) allows fine tuning adjustments so that the machine does not move in neutral. Any adjustments should be made for neutral positioning only.

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

2. Start the engine. The brake must be engaged and motion control levers out to start engine. Run the engine at full throttle and release the brake.

3. Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature.

   Note: The motion control lever needs to be in neutral while making any necessary adjustments.

4. Bring the motion control levers into the neutral position. Access the links from the front of the tower. Adjust the pump control rod lengths by loosening the lower and middle nuts on each and rotating the turn buckle until the wheels slightly creep in reverse. The pumps have a return to neutral arms and will return to neutral when the control levers are released. If the levers do not fold out, adjust the links until the lever folds out in the middle of the neutral lock notch. Move the levers to the full forward and reverse. If the levers fold out, tighten the lower and middle jam nuts on the links, followed by the upper jam nut last.

   

   Figure 25

   1. Lower jam nut
   2. Middle jam nut
   3. Links
   4. Upper jam nut

5. Shut off the machine.

6. Remove the jack stands.

7. Check that the machine does not creep in neutral with the park brakes disengaged.

Hydraulic Fluid Type: Toro^® HYPR-OIL^™ 500 hydraulic fluid

Hydraulic System Fluid Capacity: 2.2 L (74.39 fl oz)

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

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

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

3. Lift and lock the thigh pad.

4. Clean area around hydraulic reservoir cap and remove cap. Oil level should be to in the cross hatch on the dipstick when cold. If not, add oil. Replace hydraulic reservoir cap and tighten until snug. Do not overtighten.

5. Wipe the dipstick clean and re-insert the cap into the hydraulic tank. Lightly tighten the cap.

6. Remove the cap again and check the level of the oil on the dipstick. See Figure 26 for oil levels.

   

   Figure 26

   1. Full
   2. Add

   Note: The oil level on the dipstick will be incorrect if the oil is checked when the unit is hot.

7. If the dipstick oil level does not register on the dipstick, add hydraulic oil. Do not overfill.

8. Install hydraulic reservoir cap and tighten until snug. Do not overtighten.

9. Lower the thigh pad.

Change the hydraulic fluid more frequently in severe conditions or in a hot operating climate. Contact your Authorized Service Dealer for a hydraulic kit to replace the hydraulic filters.

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

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

3. Remove the right side guard.

   

   Figure 27

   1. Right side guard

4. Place a catch pan under the hydraulic filter.

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

6. Unscrew the filter to remove and allow the oil to drain from the reservoir.

   Important: Before reinstalling new filter, fill it with Toro Hypr-Oil 500 and apply a thin coat of oil on the surface of the rubber seal.

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

7. Fill the reservoir as stated in Checking the Hydraulic Oil Level

   Toro Hypr-Oil 500 is recommended. Refer to the chart for an acceptable alternative:

   Hydro Oil	Service Interval
   Toro Hypr-Oil 500 (Preferred)	After first 250 hours*Every 500 hours/Yearly thereafter
   Mobil 1 15W50	After first 250 hours *Every 250 hours/Yearly thereafter

   *May need more often under severe conditions.

8. Loosen the filter 1/2 turn and allow a small amount of oil to leak from the oil filter (this allows air to be purged from the oil filter and supply hose from the hydraulic reservoir). Turn the filter clockwise until the rubber seal contacts the filter adapter. Then tighten the filter an additional 2/3 to 3/4 turn.

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

   Caution

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

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

10. Start the engine and move the throttle control ahead to the full throttle position. Move the motion control levers inward (together) and move both levers forward with equal pressure, and run for one minute. Shut down the machine, allow the hydraulic components to cool and recheck the oil level.

    If either drive wheel does not rotate, one or both of the charge pumps (located on the top of the main pump as shown in Figure 28) may have lost their “prime”. Refer to Hydraulic System Air Purge

11. Install the right side guard.

12. Remove the jack stands.

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

Air must be purged from the hydraulic system when any hydraulic components, including oil filter, are removed or any of the hydraulic lines are disconnected.

The critical area for purging air from the hydraulic system is between the oil reservoir and each charge pump located on the top of each variable displacement pump (Figure 28). Air in other parts of the hydraulic system will be purged through normal operation once the charge pump is “primed”.

Figure 28

1. Charge pump cap
2. Loosen 1-1/2 turns only

1. Stop the engine and wait for all moving parts to stop. Raise the rear of the machine up onto jack stands high enough to raise the drive wheels off the ground.

2. Check oil level. Refer to Checking the Hydraulic Oil Level.

3. Start the engine and move throttle control ahead to full throttle position. Move the motion control levers inward (together) and move both levers forward with equal pressure.

   If either drive wheel does not rotate, it is possible to assist the purging of the charge pump by carefully rotating the tire in the forward position.

   Note: It is necessary to lightly touch the charge pump cap with your hand to check the pump temperature. If the cap is too hot to touch, turn off the engine. The pumps may be damaged if the pump becomes too hot.

   If either drive wheel still does not rotate continue with step .

4. Thoroughly clean the area around each of the charge pump housings.

5. To “prime” charge pump, loosen two hex socket head capscrews (shown in Figure ) 1-1/2 turns only. Make sure the engine is not running. Lift the charge pump housing upward and wait for a steady flow of oil to flow out from under the housing. Retighten the capscrews. Do this for both pumps.

   Note: The hydraulic reservoir can be pressurized up to 5 psi to speed this process.

6. If either drive wheel still does not rotate, stop and repeat steps and above for the respective pump. If wheels rotate slowly, the system may prime after additional running. Check oil level as stated in Checking the Hydraulic Oil Level section.

7. Allow unit to run several minutes after the charge pumps are “primed” with drive system in the full speed position. Check oil level as stated in Checking the Hydraulic Oil Level section.

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

2. Shut off the engine, remove the key, and disconnect the spark-plug wires from the spark plugs.

3. Lift the deck and secure it in raised position as stated in the Clean Grass Build-Up Under Deck section.

4. Inspect the blades and sharpen or replace as required.

5. Reinstall the blades (if they were removed) in the following order:

   1. Install the bushing through blade with the bushing flange on bottom (grass) side of blade.

      

      Figure 29

      1. Install bushing in blade prior to installing bushing in spindle.

   2. Install the bushing/blade assembly into the spindle.

      

      Figure 30

      1. Use wrench here for blade installation. This nut has been torqued to 176 to 217 N∙m (130 to 160 ft-lb)
      2. Torque to 68 to 81 N∙m (50 to 60 ft-lb) Apply lubricant to threads as needed to prevent seizing. Copper-based anti-seize preferable. Grease acceptable substitute.

   3. Apply lubricant to the threads of the blade bolt as needed to prevent seizing. Copper-based anti-seize is preferable. Grease is an acceptable substitute. Install the blade bolt finger tight. Place wrench on the top spindle nut then torque the blade bolts to 68 to 81 N∙m (50 to 60 ft-lb).

   Warning

   Incorrect installation of the blade or components used to retain the blade can be dangerous. Failure to use all original components and assembled as shown could allow a blade or blade component to be thrown out from under the deck resulting in serious personal injury or death.

   Always install the original Toro blades, blade bushings, and blade bolts as shown.

Note: Small adjustments can be accomplished by increasing the tire pressure in the tire on the low side.

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

2. Shut off the engine, remove the key, and disconnect the spark-plug wires from the spark plugs.

3. Check the tire pressure in drive tires and pneumatic front caster tires (if equipped). Proper inflation pressure for tires is 90 kPa (13 psi). Adjust if necessary.

4. Pull the deck lift handle all the way rearward to latch the cutting deck into the raised transport position.

5. Insert the height adjustment pin into the 7.6 cm (3 inches) cutting height location.

6. Release the transport lock and allow the deck to lower to the cutting height.

7. Raise the discharge deflector.

8. Carefully rotate the blades front to rear. Measure from the level surface to the front tip of the center blade. The measurement should read 7.6 cm (3 inches).

   Note: In most conditions, the back tips on the side blades should be adjusted 3.2 to 6.4 mm (1/8 to 1/4 inch) higher than the front.

   

   Figure 31

   1. 7.9 to 8.3 cm (3-1/8 to 3-1/4 inches)
   2. Back blade tip
   3. Front blade tip
   4. 7.6 cm (3 inches)
   5. Level surface

9. Raise the deck to transport position.

10. Slowly loosen the adjusting screw on the lift assist spring until the screw can be removed (Figure 32). Save the screw for reinstallation.

    

    Figure 32

    1. Adjusting screw
    2. Bracket
    3. Gap

11. Set the height of the cut lever to the 7.6 cm (3 inches) position. Place a 6.7 cm (2-5/8 inches) tall block under the front deck skirt and a 7.0 to 7.3 cm (2-3/4 to 2-7/8 inches) block under the rear skirt.

12. Loosen the hardware at the bottom of all four lift chains so the deck is sitting securely on the blocks (Figure 33). Make sure the slack is removed from the lift chains and retighten the hardware.

    

    Figure 33

    1. Chain
    2. Leveling adjust locking nuts

13. Raise the deck and remove the blocks. Lower the deck back to 7.6 cm (3 inches) and recheck the cutting height.

14. Raise the deck into the transport position and reinstall the deck lift assist spring. Tighten the adjuster screw until a 6.0 to 6.4 cm (2-3/8 to 2-1/2 inches) gap is present (Figure 33).

    Note: If the front to rear blade tip height difference is good, but the height is off, additional adjustments can be made using the lift rod.

15. Loosen both of the jam nuts on the lift rod and rotate the rod to raise or lower the deck. Tighten the jam nuts when desired position is achieved (Figure 34).

    

    Figure 34

    1. Deck lift rod
    2. Jam nut

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

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

3. Visually inspect the machine for any loose hardware or any other possible problem. Tighten the hardware or correct the problem before operating.

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

2. Clean off any oil, debris, or grass build-up on the machine and cutting deck, especially under deck belt shields, around the fuel tank, around engine and exhaust area.

   Important: You can wash the machine with mild detergent and water. Do not pressure wash the machine. Avoid excessive use of water, especially near the control panel, around the engine, hydraulic pumps, and motors.

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

2. Clean all debris from rotating engine air intake screen, around engine shrouding, and exhaust system area.

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

4. Clean oil coolers (if equipped) of all debris, dirt, and oil.

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

2. Remove cooling shroud access panels from engine and clean cooling fins. Also clean dust, dirt, and oil from external surfaces of engine which can cause improper cooling.

3. Make sure cooling shroud access panels are properly reinstalled. Operating the engine without cooling shroud access panels will cause engine damage due to overheating.

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

2. Raise deck to the transport (maximum cutting height) position. Lift the front of unit and support machine using jack stands or equivalent support.

3. Clean out any grass build-up from underside of deck and in discharge deflector.