Wheel Cylinder: Service and Repair

REMOVAL PROCEDURE
1. Clean the area around the wheel cylinder inlet, the pilot and the bleeder valve.
2. Remove the brake drum. Refer to Brake Drum Replacement
3. Remove the brake components, as needed for access. Refer to Brake Lining Replacement.
4. Remove the bleeder valve (1).
5. Disconnect the brake pipe from the wheel cylinder. Plug the opening in the pipe to prevent fluid loss and contamination.
6. Remove the bolts (2).
7. Remove the wheel cylinder (3).
8. Clean the old sealant from the backing plate where the wheel cylinder was removed.
9. Clean the sealant from the wheel cylinder (if the wheel cylinder is to be reinstalled).





INSTALLATION PROCEDURE
1. Apply Loctite Master Gasket or equivalent to the wheel cylinder shoulder face that contacts the backing plate.
2. Position the wheel cylinder and hold it in place.

NOTICE: Always use the correct fastener in the proper location. When you replace a fastener, use ONLY the exact part number for that application. The manufacturer will call out those fasteners that require a replacement after removal. The manufacturer will also call out the fasteners that require thread lockers or thread sealant. UNLESS OTHERWISE SPECIFIED, do not use supplemental coatings (paints, greases, or other corrosion inhibitors) on threaded fasteners or fastener joint interfaces. Generally, such coatings adversely affect the fastener torque and joint clamping force, and may damage the fastener. When you install fasteners, use the correct tightening sequence and specifications. Following these instructions can help you avoid damage to parts and systems.

3. Install the bolts.
^ Tighten the attaching bolts to 12 Nm (106 inch lbs.).

4. Connect the brake pipe to the wheel cylinder.
^ Tighten the brake pipe fitting (tube nut) to 15 Nm (11 ft. lbs.).

5. Install the bleeder valve.
^ Tighten the bleeder valve to 10 Nm (88 inch lbs.).

6. Install the brake components. Refer to Brake Lining Replacement.
7. Install the brake drum. Refer to Brake Lining Replacement.
8. Bleed the wheel cylinder. Refer to Brake Lining Replacement.