Toro Greensmaster 3120 Service Manual page 228

Removing the Front Wheel and Brake Assembly (continued)
Installing the Front Wheel and Brake Assembly
Chassis: Service and Repairs
6. Remove the wheel hub lock nut and the wheel hub assembly. Locate and
retrieve the woodruff key.
If wheel hub, brake drum or drive studs need replacement, press the drive
studs from the wheel hub to separate the hub from the brake drum.
7. Disconnect the brake rod from the brake lever and discard the cotter pin.
8. Remove the return springs and remove the brake shoes from the backing
plate.
The brake parts should be clean and free of rust. Inspect the contact
surfaces of the brake shoes and the brake drum for excessive wear. Replace
worn or damaged parts as necessary.
9. Remove the brake backing plate if necessary.
A. Mark the brake cam and the brake lever to assure proper alignment
during reassembly.
B. Remove the retaining clip from the brake cam and pull the brake lever
from the cam and machine frame.
C. Remove the brake cam from the backing plate.
D. Remove the cap screws, lock nuts and the brake backing plate from the
brake bracket.
1. Install the brake backing plate if necessary.
A. Secure the backing plate to the brake bracket with four cap screws and
lock nuts.
B. Apply anti-seize lubricant to spline area of the brake cam and install the
brake cam into the backing plate.
C. Slide the brake lever onto the brake cam making sure that the brake lever
pivot is inserted into the machine frame. Secure the brake lever to the
brake cam with the retaining clip.
2. Position the brake shoes on the backing plate and install the return springs.
Note: If the brake rod was disassembled, apply anti-seize lubricant to the
threads of the brake rod prior to assembly.
3. Connect the brake rod to the brake lever with a new cotter pin.
4. Make sure the wheel hub bore and the wheel motor shaft are clean. Install
the wheel hub assembly with the woodruff key and the hub lock nut.
5. Install the front wheel and secure it with four lug nuts. Tighten the lug nuts
evenly in a crossing pattern.
Failure to maintain proper wheel lug nut and hub lock nut torque can
result in failure or loss of wheel which may result in personal injury.
6. Lower machine to ground and tighten hub lock nut from 339 to 542 N∙m (250
to 400 ft-lb). Tighten wheel lug nuts from 95 to 122 N∙m (70 to 90 ft-lb).
7. Check and adjust brakes as necessary; refer to Traction Unit Operator's
Manual.
WARNING
Page 6–6 Greensmaster 3120
17230SL Rev C