B
40
Repair and Service Manual
BRAKES
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
699322
Wear eye protection and a mask
when cleaning brake components.
Do not use compressed air to
remove brake dust from brake assembly.
Do NOT use a commercial brake
cleaner unless the entire brake has
been disassembled.
2.
Remove any accumulated brake dust with a brush.
3.
Remove the brake shoes. See the
4.
Clean backing plate with a commercial brake
cleaner. Allow to dry completely.
It is important that the friction areas
between the backing plate and the
brake shoes be lubricated. Be care-
ful not to allow lubricant to contact the braking por-
tion of the brake shoes or the friction surface of the
brake drum. Use only recommended lubricants.
5.
Lubricate the backing plate friction points of the
shoes and surfaces with Multi Purpose Grease
Figure 21 Wheel Brake Lubrication Points
6.
Install the actuator components, adjuster compo-
nents and brake shoes See the
If the brake shoes and drum are not to be replaced,
sand the friction surfaces lightly with emery cloth to
remove any foreign material.
Be sure that the adjusting screw is
screwed into the star wheel nut until
only 1 - 2 threads are exposed. If the
brake shoes are replaced, replace the brake springs
and the adjuster components.
7.
Replace the springs one side at a time, using the
other side as a guide.
8.
Install brake drum as described in ‘Brake Drum
Removal and Installation’.
9.
Repeat on other side of vehicle.
10. Adjust the brake pedal free travel. See the
Backing Plate/Entire Wheel Brake Assembly
Removal and Installation
11. Remove the four bolts (1) and lock nuts (2) securing
the wheel brake backing plate to the flange on the
Figure 22 Backing Plate Removal and Installation
12. Remove the clevis pin securing the brake cable to
the brake lever.
13. Installation is the reverse of removal. Connect the
brake cable to the wheel brake with the clevis pin
installed from the top down and a new cotter pin.
Install the brake assembly or backing plate to the
axle tube flange. Install new hardware (locknut
should only be used once) and tighten to 23 - 28 ft.
lbs (31 - 38 Nm) torque.
Backing Plate
Lubricate
(3) Bosses
Each Side
Lubricate
(3) Bosses
Each Side
Lubricate In and Around Surfaces
Lubricate
Lubricate
Brake Adjuster
Arm
2
1
Содержание LS2 2020
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