Service Brakes - TM-10-3930-624-120090

knob four or five turns. The handle must be in the fully

released position.

(2) Remove the floor plate.

(3) Remove the clevis pin from the yoke and

loosen the yoke locknut (fig. 4-46).

(4) Rotate the ycxe three or four turns in a

clockwise direction to shorten the length.

(5) Install the yoke on the brake lever and

check the adjustment by engaging the hand brake

handle. If necessary, make further adjustment to the

yoke to make certain the brake shoes do not drag when

disengaged.

(6) After satisfactory adjustment is made,

tighten the yoke locknut, install the cotter pin in the yoke

clevis pin. Install the locking screw in adjusting knob of

the parking brake handle.

4-51. Service Brakes

a. Removal and Disassembly.

(1) Remove the wheel and wheel bearing at

described in paragraph 4-55.

Figure 4-50. Self-adjusting brakes.

(2) Remove the dust shield to expose the

brake components for service. Refer to figure 4-49.

(4) Remove the brake shoes and adjuster

assembly as a unit.

Note.

The adjuster assembly must be

compressed to disassemble the self-adjusting

brakes. This compression of the adjuster assembly

will not affect the adjustment of the brakes.

(5) Drive out the roll pins which attach the

adjuster assembly to the brake shoes. Compress the

adjuster assembly by placing one end on a solid surface

and tapping the other end with a wooden mallet until it is

fully compressed.

b. Cleaning and Inspection.

(1) Clean the brake shoes with a wire brush.

Remove greasy or gummy deposits with a cloth

dampened with a cleaning solvent.

(2) Wipe the exterior of the wheel cylinder

with a cloth dampened with a cleaning solvent.

(3) Clean all metallic parts with cleaning

solvent; dry thoroughly.

Figure 4-49. Dust shield.

(4) Inspect the brake shoes for wear, cracks,

oil saturation, or other damage. If the linings are

(3) Remove the upper and lower shoe return

damaged or worn to less than 1 /16" thickness, replace

springs (fig. 4-50).

the brakeshoes.

(5) Inspect the wheel cylinders for cracks,

4-42