Rear Disc Brakes
1. Raise and support vehicle and remove wheel.2. Loosen parking brake cable from inside vehicle then disconnect parking brake cable end on rear brake assembly.
Fig. 4 Exploded View Of Rear Disc Brake Assembly (Part 1 Of 2):
Fig. 4 Exploded View Of Rear Disc Brake Assembly (Part 2 Of 2):
3. Remove lower lockpin, Fig. 4.
4. Lift caliper assembly and secure to frame using suitable wire.
5. Remove outer shim and pad assembly.
6. Remove pad clips "C" and "B".
Fig. 3 Measuring Hub & Brake Drag Torque:
7. Measure hub torque with pad removed to be able to measure brake drag torque after installation, Fig. 3.
8. Attach pad clip to caliper support.
9. Clean piston surface then use rear disc brake piston driver tool No. MB990652, or equivalent, to thread piston into cylinder. Ensure the stopper grove of piston correctly fits to projection on pads rear surface.
10. Install pads and shims onto caliper assembly.
11. Lower caliper assembly and install lockpin. Ensure piston boot does not become caught when lowering the caliper into place.
12. Check brake drag torque as follows:
a. Start engine and hold brake pedal down for five seconds.
b. Stop engine and turn disc rotor froward ten times.
c. If difference between brake drag torque and hub torque exceeds 4.4 lbs., disassemble piston and clean piston. Check for corrosion, wear or damaged on brake caliper components.