Rice Lake Mobile Group Animal Scale - MAS-M - Operators Manual - Manual (Page 37)

Maintenance 33
3. Rotate the star wheel of the adjuster assembly with a screwdriver or standard
adjusting tool to expand the brake shoes. Adjust the brake shoes out until the
pressure of the linings against the drum makes the wheel very difficult to turn.
4. Then rotate the star wheel in the opposite direction until the wheel turns
freely with a slight lining drag.
5. Replace the adjusting hole cover and lower the wheel to the ground.
6. Repeat the above procedure on all brakes. For best results the brakes
should all be set at the same clearance.
5.3.4 Wheel Assembly and Torque Specification
1. Start all bolts or nuts by hand to prevent cross threading.
2. Tighten bolts or nuts in the sequence shown below.
3. The tightening of the fasteners should be done in stages, per torque chart below
following the recommended sequence.
4. Wheel nuts/bolts should be torqued before first road use and after each wheel
removal. Check and re-torque after the first 10 miles, 25 miles, and again at 50
miles.
Figure 5-3. Wheel Torque Sequence
5.3.5 Bearing Adjustment
In the event the hub is removed follow this procedure for wheel bearing adjustment.
1. After placing the hub, bearings, washers, and spindle nut on the axle spindle
ro tate th e hub assembly slowly while tightenin g the spindle nut to
approximately 50 lbs.-ft.
2. Then loosen the spindle nut to remove the torque. Do not rotate the hub.
3. Finger tighten the spindle nut until just snug.
4. Back the spindle nut out slightly until the first castellation lines up with the
cotter key hole and insert the cotter pin
5. Bend over the cotter pin legs to secure the nut.
6. The nut should be free to move with the only restraint being the cotter pin.
7. Install the dust cover and rotate the wheel to ensure the cotter key does not
contact the dust cover.
1st Stage 2nd Stage 3rd Stage
20-25 50-60 90-120
Table 5-1. Wheel Torque Sequence (ft-lbs)