Wheel Cylinder: Service and Repair

DISASSEMBLY AND REASSEMBLY

REASSEMBLY SERVICE POINT
>>A<< PISTON CUP/PISTON ASSEMBLY
1. Use alcohol or brake fluid DOT 3 or DOT 4 to clean the wheel cylinder and the piston.





2. Apply brake fluid DOT 3 or DOT 4 to the piston cups and special tool MB990619.

CAUTION: In order to keep the piston cup from becoming twisted or slanted, slide the piston cup down special tool MB990619 slowly and carefully, without stopping.

3. Set the piston cup on special tool MB990619 with the lip of the cup facing up. Fit the cup onto special tool MB990619, and then slide it down the outside of special tool MB990619 into the piston groove.

INSPECTION
Check the piston and wheel cylinder walls for rust,pitting, or damage. If there is any abnormality, replace the entire wheel cylinder assembly.