Parking Brake Shoe: Service and Repair

REMOVAL





1. Lock out park brake lever.
2. Raise vehicle.
3. Remove rear wheel and tire assembly.
4. Remove caliper and anchor as an assembly.
5. Remove rubber access plug from back of rear disc brake splash shield.





6. If necessary retract parking brake shoes with brake adjuster tool. Position tool at top of star wheel and rotate wheel.
7. Remove rotor from axle hub flange.





8. Remove the lower shoe to shoe spring/adjuster spring with needle nose pliers.





9. Remove the upper shoe to shoe spring/return spring with brake pliers.





10. Remove shoe hold-down clips and pins. Clip is held in place by pin, which fits in clip notch. To remove clip, first push clip ends together and slide clip until head of pin clears narrow part of notch. Then remove clip and pin.
11. Remove shoes and adjuster.

CLEANING - REAR DRUM IN HAT BRAKE
Clean the individual brake components, including the support plate exterior, with a water dampened cloth or with brake cleaner. Do not use any other cleaning agents. Remove light rust and scale from the brake shoe contact pads on the support plate with fine sandpaper.

INSPECTION - REAR DRUM IN HAT BRAKE
As a general rule, riveted brake shoes should be replaced when worn to within 0.78 mm (1/32 inch) of the rivet heads. Bonded lining should be replaced when worn to a thickness of 1.6 mm (1/16 inch).

Brake Shoe:

Examine the lining contact pattern to determine if the shoes are bent or the drum is tapered. The lining should exhibit contact across its entire width. Shoes exhibiting contact only on one side should be replaced and the drum checked for runout or taper.

Inspect the adjuster screw assembly. Replace the assembly if the star wheel or threads are damaged, or the components are severely rusted or corroded.

Discard the brake springs and retainer components if worn, distorted or collapsed. Also replace the springs if a brake drag condition had occurred. Overheating will distort and weaken the springs.

Inspect the brake shoe contact pads on the support plate, replace the support plate if any of the pads are worn or rusted through. Also replace the plate if it is bent or distorted.

INSTALLATION
1. Install shoes on splash shield with hold down clips and pins. Be sure shoes are properly engaged in the park brake actuator.
2. Lubricate and install adjuster screw assembly. Be sure notched ends of screw assembly are properly seated on shoes and that star wheel is aligned with access hole in shield.
3. Install lower shoe to shoe spring/adjuster spring. Needle nose pliers can be used to connect spring to each shoe.
4. Install the upper shoe to shoe spring/return spring with brake pliers.
5. Install rotor and caliper anchor assembly.
6. Install anchor bolts and tighten to 90 - 115 Nm (66 - 85 ft. lbs.).
7. Actuate park brake lever to unlock the park brake system.
8. Adjust the parking brake shoes.
9. Install wheel and tire assembly.
10. Lower vehicle and verify correct parking brake operation.