Parking Brake System: Service and Repair

Removal

WARNING: Clean brakes with a vacuum dust collector to minimize the hazard of airborne particles or other materials.

CAUTION: Make sure parking brake lever is released completely.





1. Remove torque member fixing bolts (Rear disc brake assembly mounting bolts). Suspend caliper assembly with wire so as not to stretch brake hose.





2. Release parking brake lever fully, then remove drum. If drum is hard to remove, the following procedures should be carried out.
a. Remove plug.
b. Insert flat-bladed screwdriver through plug hole.
c. Turn adjuster to make clearance between brake shoe and drum.





d. Fit two bolts to the drum as shown and tighten gradually.





3. After removing retainer, remove spring by rotating shoes.
4. Remove adjuster.





5. Disconnect parking brake cable from toggle lever after drawing out toggle lever pin.

Inspection-Drum





Maximum inner diameter: 173.0 mm (6.81 inch)

Inspection-Lining





Check lining thickness.
Standard lining thickness: 3.2 mm (0.126 inch)
Lining wear limit (A): 1.5 mm (0.059 inch)

Installation





1. Apply brake grease to the contact areas shown at left.





2. Attach two upper springs to brake shoes as shown in the figure at left.





3. Shorten adjuster by rotating it.
Pay attention to direction of adjuster.





4. Connect parking brake cable to toggle lever.
Pay attention to direction of adjuster.
5. Install all parts.





6. Check all parts are installed properly.
Pay attention to direction of adjuster and toggle lever.
7. Install drum.
8. Install rear disc brake assembly.

Shoe Clearance Adjustment





1. Remove adjuster hole plug, and turn down adjuster wheel with a flat-bladed screwdriver until brake is locked.
Make sure that parking control lever is released completely.
2. Return adjuster wheel 5 to 6 latches.
3. Install adjuster hole plug, and make sure that there is no drag between shoes and brake drum when rotating disc rotor.
4. Adjust parking brake cable.

Breaking in Drum and Lining
When a new rotor/parking brake shoe is installed, or when braking performance is poor, perform the following break-in procedure.
1. Drive the unloaded vehicle on a safe, level and dry road.
2. Depress parking brake pedal with a force of 147 N (15 kg, 33 lbs.).
3. While depressing the pedal, continue to drive the vehicle forward 100 m (328 ft.) at approximately 35 km/h (22 MPH).
4. Cool down parking brake for approx. five minutes.
5. After releasing the pedal, drive the vehicle under the normal conditions for two minutes to cool down the parking drum brake.
6. Repeat steps 1 through 5 three times and then repeat only step 5 one more time.