pushes the brake linings into contact with the brake
Cleaning and Inspection
drums to slow and stop the vehicle.
Discard the boots and cups.
Clean all parts of the wheel cylinder with
denatured alcohol; dry thoroughly.
Remove the wheel cylinders (para 11-22).
Inspect the cylinder for scoring, pits, burrs, or
wear by holding the cylinder up to a strong light and
looking through it; replace the cylinder if damaged.
Inspect all other parts of the wheel cylinder for
Refer to figure 11-4 and disassemble the wheel
cracks, breaks, distortion, burrs, scoring, or other
damage: replace damaged parts.
Remove any cleaning residue with crocus
cloth or jeweler's rouge.
Check for proper clearance between the piston
and cylinder by sliding the piston into the cylinder and
checking with a feeler gage. Replace the cylinder
assembly if clearance exceeds 0.005 inch.
Refer to figure 11-4 and reassemble the wheel
cylinder. Lubricate internal parts of the wheel cylinder
with hydraulic brake fluid during reassembly.
Install the wheel cylinder (para 11-24).
Bleed the brake system and adjust the brakes
Figure 11-4. Wheel Cylinder, Exploded View.
Section V. HAND BRAKE SHOES
Removal and Disassembly
Remove right side tilt cylinder (TM 10-3930-
The parking brake drum is a V-pulley keyed to the
driven end of the pinion shaft of the transmission. The
brake shoe is a V-shaped block which is pressed into the
Disconnect the hand brake linkage from the
V of the pulley as the brake is applied. This prevents
arm and shaft assembly (TM 10-3930-632-12).
rotation of the transmission pinion shaft, preventing
Refer to figure 11-5 and remove and
movement of the vehicle. The lever that operates the
disassemble the parking brake assembly from the torque
brake shoe is designed to multiply the application force
of the brake by a leverage factor.
Change 1 11-5