Figure 3-28. Drive axle, wheel cylinder and brake shoe assembly, disassembly and reassembly.

TM 10-3930-611-35

(1) Depress

brake

pedal

applying

(3) Tighten or replace loose or missing

pressure to center the brake shoes.

hardware. Replace brake shoes if lining is glazed,

(2) Rotate tire and wheel until access hole

grease or oil soaked, or if lining thickness is -less than

aligns with either forward or rear cam adjusting bolt (fig.

l/8 inch. Replace tires if rubber is worn down to

approximately 161/2 inch diameter. Replace tapered

(3) Insert the blade of an 8 or l0 inch,

roller bearings if excessive pittings in races are visible.

square shank screwdriver through access hole into slot

Replace spindles if out-of-straightness exceeds 1/16

in adjusting cam. Use wrench to apply torque to the

inch. Replace cups an/or piston in wheel cylinder if

screwdriver.

leaks are evident.

d. Reassembly. Refer to figure 3-28 and

(4) Rotate the forward cam bolt clockwise

or the rear cam bolt counterclockwise until lining drags

reassemble the drive axle, wheel cylinders, and brake

on drum.

shoe assembly.

e. Installation.

(5) Back off adjustment by turning

screwdriver in opposite direction, increasing clearance

(1) Refer to figure 3-27 and install the

until drag is relieved.

drive axle.

(6) Repeat adjustment sequence steps (4)

(2) Install the drive wheel (TM 10-3930-

and (5) on reverse shoe.

611-12).

Brake Shoe Adjustment.

Figure 3-28. Drive axle, wheel cylinder and brake shoe assembly, disassembly and reassembly.

3-34