Toro Groundsmaster 4300-D Service Manual page 338

Assembling the Brake
Chassis: Service and Repairs
1. Use a wire brush to remove rust and unwanted material from all the brake
parts before the installation. Clean all the parts.
2. Visually examine the brake shoes and contact surfaces of the brake drum for
excessive wear. Replace the parts that are worn and damaged.
3. If the brake backing plate was removed from the machine, secure the backing
plate to the brake adapter with the 4 bolts (item 10 in
4. Lightly lubricate the brake shoe pivot points with general purpose grease.
5. Position the brake shoe to the backing plate. Install the hold down pin and
secure with the hold down spring and hold down cup. Repeat for the second
brake shoe.
Note: The shoe spring (actuator) must be installed at the actuator end of
the brake shoes.
6. Install the 2 shoe springs (items 10 and 7 in
Ensure that the brake shoes are properly positioned to the pivot and actuator
points.
Before installing the wheel hub, clean the tapers of the wheel hub
and wheel motor shaft. Ensure that the tapers are free of grease,
oil, rust, and dirt. Do not use anti-seize lubricant, when you install
the wheel hub.
7. Mount the square key in the wheel motor shaft, and then install the wheel
hub onto the wheel motor shaft.
Do not use the locknut previously removed to attach the wheel hub
to the wheel motor.
8. Install new locknut (item 15 in
secure the wheel hub to the motor shaft.
9. Install the brake drum (item 14 in
10. Position the end of the brake cable to the brake actuator lever (item 12 in
Figure 207). Attach the cable to the brake actuator lever with the clevis pin
and brake return spring.
11. Install the front wheel assembly; refer to
12. Check and adjust the brakes; refer to the Operator's Manual.
13. Lower the machine to the ground.
Failure to maintain proper torque could result in failure or loss of
wheel and may result in personal injury.
Maintain the proper torque of the wheel-lug nuts.
14. Torque the wheel hub locknut (item 15 in
hub to 427 to 522 N∙m (315 to 385 ft-lb).
IMPORTANT
IMPORTANT
Figure 206) onto the wheel motor shaft to
Figure 206).
Installing the Wheel (page
WARNING
Figure
Page 6–14
Figure 206).
Figure 207) to the brake shoes.
206) that secures the wheel
Groundsmaster
16226SL Rev C
6–6).
® 4300-D