Hand Brake Lever Replacement

TM 10-3930-632-12

4-73. Hand Brake Shoe and Lever Adjustment

mechanically linked to the brake pedal. The hand brake

a. Shoe Adjustment. When properly adjusted,

operates on the transmission shaft. The hand brake V-

pulley drum rotates with a transmission pinion shaft.

the parking brake must be capable of holding the truck

The stationary hand brake V-brake shoe is connected by

on a 15-percent grade with a full, rated load. Adjust the

mechanical linkage to the hand brake lever so that,

hand brake shoe as follows:

when the brake is applied, the V-shoe is forced into the

(1)

Loosen the locknut (figure 4-51)

V-pulley drum.

several turns.

Figure 4-51. Parking Brake Adjustment Points

(2)

Rotate

the

lock

sleeve

knob on the end of the lever several turns clockwise.

counterclockwise to close gap between brake shoe and

After making this adjustment, recheck brake action. If

brake drum.

necessary, repeat procedure.

(3) Hold the lock sleeve and tighten the

4-74. Hand Brake Lever Replacement

locknut until snug against cam lever, then back off

a. Removal. Refer to figure 4-52 and remove

locknut one-half to three-quarters of a turn.

b. Lever Adjustment. Adjustment to the hand

the complete hand brake lever assembly.

brake lever is made by placing the lever in the full

forward (released) position, then turning the knurled

4-66