Wheel Cylinder: Service and Repair

Removal
1. Remove brake drum.
2. Remove brake shoe.





3. Loosen brake pipe flare nut (1) but only within the extent that fluid does not leak.





4. Remove wheel cylinder mounting bolts. Disconnect brake pipe from wheel cylinder and put bleeder plug cap (1) onto pipe to prevent fluid from spilling.

Installation





1. Take off bleeder plug cap from brake pipe and connect pipe to wheel cylinder (1) just enough to prevent fluid from leaking.
2. Tighten wheel cylinder to brake back plate to specified torque.
Tightening torque
Wheel cylinder mounting bolts (a): 12 Nm (1.2 kgf-m, 9.0 ft. lbs.)
3. Tighten flare nut of brake pipe to specified torque.
Tightening torque
Rear brake pipe flare nut (b): 16 Nm (1.6 kgf-m, 11.5 ft. lbs.)





4. Install bleeder plug cap taken off from pipe back to bleeder plug.
5. Install brake shoes..
6. Install brake drum.
7. Fill reservoir with brake fluid and bleed brake system.
8. Upon completion of all jobs, depress brake pedal with about 300 N (30 kg, 66 lbs) load 3 to 5 times so as to obtain proper drum-to-shoe clearance. Adjust parking brake cable.
9. Install wheel and tighten wheel nuts to specified torque.
Tightening torque
Wheel nuts: 85 Nm (8.5 kgf-m, 61.5 ft. lbs.)
10. Check to ensure that brake drum is free from dragging and proper braking is obtained. Then remove vehicle h hoist and perform brake test (foot brake and parking brake).
11. Check each installed part for oil leakage.

Inspection





Inspect wheel cylinder disassembled parts for wear, cracks, corrosion or damage.

NOTE: Clean wheel cylinder components with brake fluid.