Wheel Cylinder: Service and Repair

WHEEL CYLINDER REPLACEMENT





1. Remove the brake shoe.





2. Disconnect the brake tube.
3. Remove the wheel cylinder assembly.
4. Remove the dust boot.
5. Remove the piston and piston cup.
6. Drive out the return spring.





7. Before assembling the wheel cylinder, inspect the following.
1 Check the cylinder and piston for wear, damage and rust.
Clearance of piston and cylinder
Standard value: 0.039 - 0.089 mm
2 Check the cylinder body for damage and cracks.
3 Check the contact surface of the piston and shoes for wear.
4 Check the piston spring for looseness.
8. Assembly is the reverse of the removal.

NOTE:
1 Clean the cylinder with isopropyl alcohol before assembly.
2 Apply enough brake fluid to piston cups and cylinder.
3 Be sure to use new piston cups and dust boots.

CAUTION: Be careful not to lose the steel ball in the bleeder.