Cherokee 4WD L6-242 4.0L VIN M FI (1988)
Brake Caliper: Service and Repair
Disassembly and Assembly
NOTE: Tool reference # J-33028, dust boot installer, required.
DISASSEMBLY
CAUTION: Disassemble and overhaul the brake calipers only in a clean work area.
1. Clean the outside of the caliper with brake cleaning solvent.
Padding Piston
2. Drain the fluid from the caliper and pad the caliper piston (1) with clean shop cloths (2).
3. Apply compressed air at the fluid inlet port (3) and slowly pressurize the caliper to ease the piston out of the bore.
4. Use a screwdriver to remove the dust boot (4). Discard the boot.
CAUTION: Do not scratch the caliper piston bore during overhaul.
Caliper Components
5. Remove the piston seal (1) with a suitable tool made of wood or plastic. Discard the seal.
6. Remove the bleeder screw (2).
7. Remove the inner and outer bushings (3) from the caliper mounting ears and discard
8. Clean all the components with brake cleaning fluid and compressed air.
9. Replace the mounting pins (4) if they are corroded or have damaged threads.
10. Replace the caliper piston (6) if it is damaged or corroded.
11. Replace the caliper if the piston bore is damaged or corroded.
