Groundsmaster® 4300-D Traction Unit

Measured vibration level for right hand = 0.72 m/s2

Measured vibration level for left hand = 0.86 m/s2

Uncertainty Value (K) = 0.5 m/s2

Measured values were determined according to the procedures outlined in EN ISO 5395:2013.

Measured vibration level = 0.65 m/s2

Uncertainty Value (K) = 0.5 m/s2

Measured values were determined according to the procedures outlined in EN ISO 5395:2013.

The front and rear cutting decks require different mounting positions. The front cutting deck has 2 mounting positions depending on what height of cut and degree of deck rotation you desire.

1. For heights of cut between 2.0 to 7.6 cm (0.75 to 3 inches), mount the front carrier frames in the lower front mounting holes (Figure 7).

   Note: This position allows more forward positioning of the cutting decks relative to the traction unit when approaching quick uphill changes in terrain. It does however limit the clearance of the chamber to the carrier when cresting sharp knolls.

   

   Figure 7

   1. Front deck mounting hole (upper)
   2. Front deck mounting hole (lower)
   3. Rear deck mounting hole

2. For heights of cut between 6.3 to 10 cm (2.5 to 4 inches), mount the front carrier frames in the upper front mounting holes (Figure 7).

   Note: This increases the chamber to carrier clearance due to the higher position of the cutting chamber, but will cause the cutting decks to reach their maximum forward travel sooner.

The front and rear cutting decks require different mounting positions. The rear cutting deck has 1 mounting position for proper alignment with the sidewinder under frame.

For all heights of cut, mount the rear cutting deck in the rear-mounting holes (Figure 7).

Check the tire pressure before use; refer to Checking the Tire Pressure.

Important: Maintain pressure in all tires to ensure a good quality-of-cut and proper machine performance. Do not underinflate the tires.

1. Check the engine-oil level before starting the engine; refer to Checking the Engine-Oil Level.

2. Check the hydraulic-fluid level before starting the engine; refer to Checking the Hydraulic Fluid Level.

3. Check the cooling system before starting the engine; refer to Checking the Cooling System.

Grease the machine before use; refer to Greasing the Bearings and Bushings. Failure to properly grease the machine results in premature failure of critical parts.

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 Lines and Hoses.

The correct air pressure in the front and rear tires is 83 to 103 kPa (12 to 15 psi).

Important: Maintain even pressure in all tires to ensure that contact with the turf is uniform.

Figure 17

Torque the wheel-lug nuts to 94 to 122 N∙m (70 to 90 ft-lb) after 1-4 hours of operation and again after 10 hours of operation. Torque every 250 hours thereafter.

Important: The rotary cutting deck cuts approximately 6 mm (1/4 inch) lower than a reel cutting unit with the same bench setting. Therefore, it may be necessary to have the rotary cutting deck's bench set 6 mm (1/4 inch) above that of reels cutting in the same area.

Important: Access to the rear cutting units is greatly improved by removing the cutting unit from the tractor. If the unit is equipped with a Sidewinder®, sidewind the cutting units to the right, remove the rear cutting unit, and slide it out to the right side.

1. Lower the cutting deck to the ground, turn the key in the ignition switch to the OFF position, and remove the key.

2. Loosen the bolt securing each height-of-cut bracket to the height-of-cut plate (front and each side) (Figure 18).

3. Beginning with the front adjustment, remove the bolt.

   

   Figure 18

   1. Height-of-cut bracket
   2. Height-of-cut plate
   3. Spacer

4. While supporting the chamber, remove the spacer (Figure 19).

5. Move the chamber to the desired height of cut and install the spacer into the designated height-of-cut hole and slot (Figure 19).

   

   Figure 19

6. Position the tapped plate in-line with the spacer.

7. Install the bolt finger-tight.

8. Repeat steps 4 through 7 for each side adjustment.

9. Tighten all 3 bolts to 41 N∙m (30 ft-lb). Always tighten the front bolt first.

   Note: Adjustments of more than 3.8 cm (1.5 inches) may require temporary assembly to an intermediate height to prevent binding (e.g. changing from 3.1 to 7.0 cm (1.25 to 2.75 inches) height of cut).

To ensure optimum performance of the parking brake system, burnish (break-in) the brakes before use. Set the forward traction speed to 6.4 km/h (4 mph) to match the reverse traction speed. (All 8 spacers moved to the top of the mow speed control.) With the engine at high idle, proceed forward with the mow speed control stop engaged and ride the brake for 15 seconds. Proceed backward at full reverse speed and ride the brake for 15 seconds. Repeat this 5 times waiting 1 minute between each forward and reverse cycle to avoid overheating the brakes. An adjustment to the brakes may be required after break-in; refer to Adjusting the Parking Brakes.

You must bleed the fuel system before starting the engine if any of the following situations have occurred:

• Initial start-up of a new machine.

• Engine has ceased running due to lack of fuel.

• Maintenance has been performed upon fuel system components; i.e., filter replaced, separator serviced, etc.

1. Set the parking brake, turn the key in the ignition switch to the OFF position, park the machine on a level surface, and ensure that the fuel tank is at least half full.

2. Open the hood.

3. Open the air-bleed screw on the fuel injection pump (Figure 20) with a 12 mm wrench.

   

   Figure 20

   1. Bleed screw

4. Turn the key in the ignition switch to the ON position. The electric fuel pump will begin operation, thereby forcing air out around the air bleed screw. Leave the key in the ON position until a solid stream of fuel flows out around the screw.

5. Tighten the screw and turn the key to the OFF position.

Note: Normally, the engine should start after the above bleeding procedures are followed. However, if engine does not start, air may be trapped between injection pump and injectors; refer to Bleeding Air from the Fuel Injectors.

The interlock switches stop the machine when the operator gets off the seat when the traction pedal is depressed. However, the operator may get off the seat while the engine is running and the traction pedal is in the NEUTRAL position. Although the engine continues to run if the PTO switch is disengaged and the traction pedal is released, it is strongly recommended that the engine be stopped before rising from the seat.

To check the operation of the interlock switches, perform the following procedure:

1. Park the machine on a level surface, lower the cutting unit, stop the engine, and set the parking brake.

2. Press the traction pedal. Turn the key in the ignition switch to the ON position.

   Note: If the engine cranks, there is a malfunction in the interlock system. Correct this malfunction before operating the machine.

3. Turn the key in the ignition switch to the ON position, rise from the seat, and move the PTO switch to the ON position.

   Note: The PTO should not engage. If the PTO engages, there is a malfunction in the interlock system. Correct this malfunction before operating the machine.

4. Engage the parking brake, turn the key in the ignition switch to the ON position, and move the traction pedal out of the NEUTRAL position.

   Note: The InfoCenter displays "traction denied" and the machine should not move. If the machine does move, there is a malfunction in the interlock system. Correct this malfunction before operating the machine.

The blades of the cutting deck should come to a complete stop in approximately 5 seconds after you shut down the cutting-deck-engagement switch.

Note: Make sure that the decks are lowered onto a clean section of turf or hard surface to avoid thrown dust and debris.

1. Have a second person stand back from the deck at least 6 m (20 feet) and watch the blades on 1 of the cutting decks.

2. Shut the cutting decks down and record the time it takes for the blades to come to a complete stop.

   Note: If this time is greater than 7 seconds, the braking valve needs adjustment. Call your Toro Distributor for assistance in making this adjustment.

The machine is equipped with a diagnostic light which indicates if the machine detects a malfunction. The diagnostic light is located on the InfoCenter, above the display screen (Figure 21). When the machine is functioning properly and the key in the ignition switch is turned to the ON/RUN position, the diagnostic light will turn on briefly to indicate the light is working properly. When a machine advisory message is displayed, the light will illuminate when the message is present. When a fault message is displayed, the light will blink until the fault is resolved.

Figure 21

1. Diagnostic light

During different times of the mowing season or when turf conditions vary, the amount of counterbalance (upward lift) required on the cutting decks can be changed to meet the conditions.

1. Position the machine on a level surface, lower the cutting decks, turn the key in the ignition switch to the OFF position, and engage the parking brake.

2. Turn the key in the ignition switch to the RUN position.

3. In the InfoCenter Settings Menu, scroll down to Counterbalance.

4. Press the right button to select counterbalance and change between the low, medium, and high settings.

   Note: Once the adjustment has been completed, move the machine to a test area and operate the machine with the new setting. The new counterbalanced setting may change the effective height of cut.

Important: You must bleed the fuel system before starting the engine if you are starting the engine for the first time, the engine has stopped due to lack of fuel, or you have performed maintenance on the fuel system; refer to Bleeding Air from the Fuel Injectors.

• Front of the machine—the hole in the rectangular pad, under the axle tube, inside each front tire (Figure 22).

  

  Figure 22

  1. Front tie-down

• Rear of the machine—each side of the machine on the rear frame (Figure 23).

  

  Figure 23

  1. Rear tie-down

In an emergency, the machine can be moved by actuating the bypass valve in the variable displacement hydraulic pump and pushing or towing the machine.

Important: Do not push or tow the machine faster than 3 to 4.8 km/h (2 to 3 mph) because internal transmission damage may occur. The bypass valve must be open whenever the machine is pushed or towed.

1. The bypass valve is located on the left side of the hydrostat (Figure 24). Rotate the bolt 1–1/2 turns to open and allow the oil to bypass internally. Because fluid is bypassed, the machine can be moved slowly without damaging the transmission.

   

   Figure 24

   1. Bypass valve

2. Close the bypass valve before starting the engine. However, do not exceed 7 to 11 N∙m (5 to 8 ft-lb) torque to close the valve.

   Important: Running the engine with the bypass valve open will cause the transmission to overheat.

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

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

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

Note: Use jack stands to support the machine when required.

Use the following as points to jack up the machine:

• Front of the machine—rectangular pad, under the axle tube, inside each front tire (Figure 26).

  

  Figure 26

  1. Front jacking point

• Rear of the machine—rectangular axle tube on the rear axle.

If you operate the machine under normal conditions, lubricate all grease fittings for the bearings and bushings after every 50 hours of operation with No. 2 lithium grease. Lubricate bearings and bushings immediately after every washing, regardless of the interval listed.

The grease fitting locations and quantities are as follows:

• Pump driveshaft U-joint (3) (Figure 27)

  

  Figure 27

• Cutting unit lift-arm cylinders (2 each) (Figure 28)

  

  Figure 28

• Lift-arm pivots (1 each) (Figure 28)

• Cutting unit carrier-frame pivot (1 each) (Figure 29)

  

  Figure 29

• Lift-arm pivot shaft (1 each) (Figure 30)

  

  Figure 30

• Rear axle tie rod (2) (Figure 31)

  

  Figure 31

• Axle-steering pivot (1) (Figure 32)

  

  Figure 32

• Steering-cylinder ball joints (2) and rear axle (1) (Figure 33)

  

  Figure 33

• Brake pedal (1) (Figure 34)

  

  Figure 34

• Cutting unit spindle-shaft bearings (2 per cutting unit) (Figure 35)

  Note: Either fitting can be used, which ever is more accessible. Pump grease into the fitting until a small amount appears at bottom of the spindle housing (under the deck).

  

  Figure 35

• Rear-roller bearings (2 per cutting unit) (Figure 36)

  

  Figure 36

  Note: Make sure that the grease groove in each roller mount aligns with the grease hole in each end of the roller shaft. To help align the groove and hole, there is also an alignment mark on 1 end of the roller shaft.

Check the whole intake system for leaks, damage, or loose hose clamps. Do not use a damaged air filter.

Service the air-cleaner filter only when the service indicator requires it. Changing the air filter before it is necessary only increases the chance of dirt entering the engine when the filter is removed.

Important: Make sure that the cover is seated correctly, seals with the air-cleaner body, and the rubber outlet valve is in a downward position—between the 5 o’clock and 7 o’clock positions when viewed from the end.

Figure 37

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

Note: This procedure should be used only if the fuel system has been purged of air through normal priming procedures and the engine does not start; refer to Bleeding the Fuel System.

1. Loosen the pipe connection to the No. 1 nozzle and holder assembly (Figure 42).

   

   Figure 42

   1. Fuel injectors

2. Turn the key in the ignition switch to the ON position and watch the fuel flow around the connector.

3. When you observe a solid flow of fuel, turn the key in the ignition switch to the OFF position.

4. Tighten the pipe connector securely.

5. Repeat steps 1 through 4 on the remaining nozzles.

Note: To clean the battery, wash the entire case with a solution of baking soda and water. Rinse it with clear water.

There are 8 fuses in the Electrical System. The fuse block (Figure 43) is located behind the control-arm access panel.

Figure 43

1. Fuse block

Figure 44

The machine must not creep when the traction pedal is released. If it does creep, adjust as follows:

1. Park the machine on a level surface, stop the engine, and lower the cutting decks to the ground.

2. Jack up the machine until all the tires are off the ground. Support the machine with jack stands to prevent it from falling accidentally.

3. On the right side of the hydrostat, loosen the locknut on the traction adjustment cam (Figure 45).

   

   Figure 45

   1. Locknut
   2. Traction-adjustment cam

   Warning

   The engine must be running so the final adjustment of the traction adjustment cam can be performed. This could cause personal injury.

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

4. Turn the key in the ignition switch to the ON position, start the engine, and rotate the cam hex in either direction until the wheels cease rotation.

5. Tighten the locknut to secure the adjustment.

6. Turn the key in the ignition switch to the OFF position, remove the jack stands, and lower the machine to the ground.

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

1. Rotate the steering wheel so that the rear wheels are straight ahead.

2. Loosen the jam nut on each end of the tie rod (Figure 46).

   Note: The end of the tie rod with the external groove is a left thread.

   

   Figure 46

   1. Wrench slot
   2. Tie rod
   3. Jam nut

3. Using the wrench slot, rotate the tie rod.

4. Measure the distance at the front and rear of the rear wheels at axle height.

   Note: The distance at the front of the rear wheels should be less than 6 mm (1/4 inch) of the distance measured at the rear of the wheels.

5. Repeat procedure as required.

The cooling system is filled with a 50/50 solution of water and permanent ethylene glycol antifreeze. The capacity of the cooling system is 9.5 L (10 US qt).

1. Check the level of coolant in the expansion tank (Figure 47).

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

   

   Figure 47

   1. Expansion tank

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

3. Install the expansion-tank cap.

1. Turn the key in the ignition switch to the OFF position and remove the key.

2. Thoroughly clean all debris out of the engine area.

3. Unlatch the clamp and pivot open the rear screen (Figure 48).

   

   Figure 48

   1. Rear-screen latch
   2. Rear screen

4. Clean the screen thoroughly with compressed air.

5. Pivot the latches inward to release the oil cooler (Figure 49).

   

   Figure 49

   1. Oil-cooler latches
   2. Oil cooler

6. Thoroughly clean both sides of the oil cooler and the radiator (Figure 50) with compressed air.

   

   Figure 50

   1. Radiator

7. Pivot the oil cooler back into position and secure the latches.

8. Close the screen and secure the latch.

Adjust the brakes when there is more than 2.5 cm (1 inch) of free travel (Figure 51) of the brake pedal, or when more holding force is required. Free travel is the distance the brake pedal moves before you feel braking resistance.

Figure 51

1. Free travel

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 52).

   

   Figure 52

   1. Brake cables
   2. Front nuts

2. Tighten the rear nut to move the cable backward until brake pedals have 6.3 to 12.7 mm (1/4 to 1/2 inch) of free travel (Figure 51), before wheel lock up is achieved.

3. Tighten the front nuts, ensuring that both cables actuate the brakes simultaneously. Ensure that the cable conduit does not rotate during tightening procedure.

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

1. Loosen the 2 screws securing the parking-brake pawl to the frame (Figure 53).

   

   Figure 53

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

2. Press the parking-brake pedal forward until the brake detent completely engages on the brake pawl (Figure 53).

3. Tighten the 2 screws locking the adjustment.

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

5. Check the adjustment and adjust as required.

1. Open the hood.

2. Check the tension of the alternator belt by depressing it (Figure 54) midway between the alternator and the crankshaft pulleys with 10 kg (22 lb) of force.

   

   Figure 54

   1. Brace
   2. Alternator belt
   3. Pivot bolt

   Note: The belt should deflect 11 mm (0.04 inch).

3. If the deflection is incorrect, proceed to step 4. If correct, continue operation.

4. Loosen the bolt securing the brace to the engine (Figure 54), the bolt securing the alternator to the brace and the pivot bolt.

5. Insert a pry bar between the alternator and the engine and pry out on the alternator.

6. When you achieve the proper tension, tighten the alternator, brace, and pivot bolts to secure the adjustment.

The machines reservoir is filled at the factory with approximately 56.7 L (15 US gallons) of high quality hydraulic fluid. The recommended replacement fluid is as follows:

Alternate fluids: If the Toro fluid is not available, other fluids may be used provided they meet all the following material properties and industry specifications. We do not recommend the use of synthetic fluid. Consult with your lubricant distributor to identify a satisfactory product.

Note: Use products only from reputable manufactures. Toro does not take responsibility for damage caused by improper substitutions.

Important: The ISO VG 46 Multigrade fluid has been found to offer optimal performance in a wide-range of temperature conditions. For operation in consistently high ambient temperatures, 18°C (65°F) to 49°C (120°F), ISO VG 68 hydraulic fluid may offer improved performance.

Premium Biodegradable Hydraulic Fluid-Mobil EAL EnviroSyn 46H

Important: Mobil EAL EnviroSyn 46H is the only synthetic biodegradable fluid approved by Toro. This fluid is compatible with the elastomers used in Toro hydraulic systems and is suitable for a wide-range of temperature conditions. This fluid is compatible with conventional mineral oils, but for maximum biodegradability and performance the hydraulic system should be thoroughly flushed of conventional fluid. The oil is available in 19 L (5 US gallons) containers or 208 L (55 US gallons) drums from your Mobil Distributor.

Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic system oil is available in 20 ml (2/3 oz) bottles. 1 bottle is sufficient for 15 to 23 L (4 to 6 US gallons) of hydraulic oil. Order Part No. 44-2500 from your Toro Distributor.

1. Position the machine on a level surface, lower the cutting decks, and turn the key in the ignition switch to the OFF position.

2. Check the hydraulic-fluid level (Figure 55).

   

   Figure 55

If fluid becomes contaminated, contact your Toro Distributor because the system must be flushed. Contaminated fluid looks milky or black when compared to clean oil.

1. Turn the key in the ignition switch to the OFF position and raise the hood.

2. Place a large drain pan under the fitting secured to the bottom of the hydraulic-fluid reservoir (Figure 56).

   

   Figure 56

   1. Hose

3. Disconnect the hose from the bottom of the fitting and let the hydraulic fluid flow into the drain pan.

4. Install the hose when hydraulic fluid stops draining.

5. Fill the reservoir with approximately 56.7 L (15 US gallons) of hydraulic fluid; refer to Changing the Hydraulic Fluid.

   Important: Use only hydraulic fluids specified. Other fluids could cause system damage.

6. Install the reservoir cap.

7. Turn the key in the ignition switch to the ON position, start the engine, use all of the hydraulic controls to distribute hydraulic fluid throughout the system, and check for leaks.

8. Turn the key in the ignition switch to the OFF position.

9. Check the level of the hydraulic fluid and add enough to raise level to the Full mark on the dipstick.

   Important: Do not over-fill.

The hydraulic system is equipped with a service-interval indicator (Figure 57). With the engine running, view the indicator, it should be in the green zone. When the indicator is in the red zone, change the hydraulic filters.

Figure 57

1. Hydraulic-filter restriction indicator

Important: Use of any other filters may void the warranty on some components.

1. Position the machine on a level surface, lower the cutting decks, turn the key in the ignition switch to the OFF position, engage the parking brake, and remove the key.

2. Replace both of the hydraulic filters (Figure 58).

   

   Figure 58

3. Turn the key in the ignition switch to the ON position, start the engine, and let it run for about 2 minutes to purge air from the system.

4. Turn the key in the ignition switch to the OFF position and check for leaks.

Make all necessary repairs before operating.

Use the hydraulic system test ports to test the pressure in the hydraulic circuits. Contact your Toro Distributor for assistance.

Use the list below to identify and describe the different functions of the solenoids in the hydraulic manifold. Each solenoid must be energized to allow function to occur.

1. Remove the hydraulic motor from the cutting deck and remove the cutting deck from the tractor.

2. Use a hoist (or minimum of 2 people) and place the cutting deck on a flat table.

3. Mark 1 end of the blade with a paint pen or marker. Use this end of the blade to check all heights.

4. Position the cutting edge of the marked end of the blade at 12 o’clock (straight ahead in the direction of mowing) (Figure 61) and measure height from table to cutting edge of blade.

   

   Figure 61

5. Rotate the marked end of the blade to the 3 and 9 o’clock positions (Figure 61) and measure the heights.

6. Compare the 12 o’clock measured height to the height-of-cut setting. It should be within 0.7 mm (0.030 inch). The 3 and 9 o’clock heights should be 1.6 to 6.0 mm (0.06 to 0.24 inch) higher than the 12 o’clock setting and within 1.6 to 6.0 mm (0.06 to 0.24 inch) of each other.

Note: If any of these measurements are not within specification, proceed to Adjusting the Blade Plane.

Start with the front adjustment (change 1 bracket at a time).

1. Remove the height-of-cut bracket (front, left, or right) from the deck frame (Figure 62).

2. Adjust 1.5 mm (0.060 inch) shims and/or 0.7 mm (0.030 inch) shim between the deck frame and bracket to achieve the desired height setting (Figure 62).

   

   Figure 62

   1. Height-of-cut bracket
   2. Shims

3. Install the height-of-cut bracket to the deck frame with the remaining shims assembled below the height-of-cut bracket.

4. Secure the socket-head bolt/spacer and flange nut.

   Note: Socket-head bolt/spacer are held together with thread-locking adhesive to prevent the spacer from falling inside the deck frame.

5. Verify the 12 o’clock height and adjust if needed.

6. Determine if only 1 or both (right and left) height-of-cut brackets need to be adjusted. If the 3 or 9 o’clock side is 1.6 to 6.0 mm (0.06 to 0.24 inch) higher than the new front height then no adjustment is needed for that side. Adjust the other side to within 1.6 to 6.0 mm (0.06 to 0.24 inch) of the correct side.

7. Adjust the right and/or left height-of-cut brackets by repeating steps 1 through 3.

8. Secure the carriage bolts and flange nuts.

9. Again, verify the 12, 3, and 9 o’clock heights.

1. Remove the roller-mounting bolt (Figure 66).

2. Insert a punch through the end of the roller housing and drive the opposite bearing out by alternating taps to the opposite side of inner bearing race. There should be a 1.5 mm (0.060 inch) lip of inner race exposed.

   

   Figure 66

   1. Front roller
   2. Mounting bolt
   3. Bearing
   4. Bearing spacer

3. Push the second bearing out in press.

4. Inspect the roller housing, bearings, and bearing spacer for damage (Figure 66).

5. Replace damaged components and assemble.

1. Press the first bearing into the roller housing (Figure 66). Press on the outer race only or equally on the inner and outer race.

2. Insert the spacer (Figure 66).

3. Press the second bearing into the roller housing (Figure 66). Pressing equally on the inner and outer race until the inner race comes in contact with the spacer.

4. Install the roller assembly into the deck frame.

5. Verify that there is no more than a 1.5 mm (0.060 inch) gap between roller assembly and the roller-mount brackets of the deck frame.

6. If there is a gap over 1.5 mm (0.060 inch), install enough 5/8 inch diameter washers to take up the slop.

   Important: Securing the roller assembly with a gap larger than 1.5 mm (0.060 inch) creates a side load on the bearing and can lead to premature bearing failure.

7. Torque the mounting bolt to 108 N∙m (80 ft-lb).