Front
REMOVAL - DISC BRAKE SHOES (FRONT)
NOTE: Review all Service Precautions.
1. Raise vehicle.
2. Remove front wheel and tire assemblies.
3. Using a hammer and drift on the outboard end, tap the lower brake shoe assembly to caliper assembly support pin out of the caliper.
4. Remove the brake shoe assembly spring clip, out from under the upper support pin, before removing upper pin from caliper.
5. Using a hammer and drift, remove the upper brake shoe assembly to caliper assembly support pin in the same fashion used on the lower support pin.
6. Remove the inboard and outboard brake shoes from the disc brake caliper as shown.
7. After brake shoes are removed from caliper, inspect caliper pistons and dust boot areas on caliper halves for evidence of brake fluid leakage. Also inspect dust boots on all caliper pistons for any cuts, tears or heat cracks and brake shoe guides for excess wear or damage. If caliper fail the inspection, the caliper assembly should be removed, disassembled, cleaned, inspected and have new piston seals and dust boots installed on all pistons.
INSTALLATION - DISC BRAKE SHOES (FRONT)
NOTE: When new brake shoes are installed they must be burnished (seated) to the rotor. This must be done to ensure the proper performance of the replacement brake shoe. Follow the procedure at the end of this installation procedure to correctly burnish the new brake shoes.
Before new brake shoes can be installed in the caliper, the caliper pistons must be pushed back into the bores of the caliper.
Push the pistons back into the bores of the caliper using the following procedure. This procedure must be used to prevent damaging the caliper, pistons, dust boots or braking disc.
CAUTION: When pushing the pistons back into the bores of the caliper, use only a trim stick as shown, or other suitable soft tool. Never use a screw driver or other metal pry bar due to potential damage to the braking surface of the rotor surface.
1. Install the previously removed brake shoes back into the caliper. Place a trim stick at the center groove of the inboard brake shoe and the outer edge of the roto. Using the trim stick, apply pressure against the inboard brake shoe assembly until both pistons are completely bottomed in the bores of the inboard caliper half. Move the trim stick between the outboard brake shoe and the rotor and repeat above the procedure.
2. Install the new inboard and outboard brake shoes into the disc brake caliper.
3. Install the upper brake shoe support pin into the caliper and both brake shoe upper support pin holes. Ensure that the small end of the support pin is in the hole in the outboard caliper half.
4. Install the brake shoe spring clip under the upper brake shoe assembly support pin.
5. Press down on the lower end of the spring clip until it touches the braking disc. Then install the lower brake shoe assembly support pin into the caliper assembly and both brake shoe assembly lower support pin holes. Be sure the spring clip is against lower support pin and the small end of the support pin is in hole in outboard caliper half.
6. Using a pin punch and a hammer, drive the upper and lower support pins for the brake shoes into the caliper from the inboard side. Support pins must be installed into the caliper until the support pin retaining rings are locked into caliper assembly.
7. After the support pins are fully installed into the caliper assembly. Inspect assembled caliper to be sure the spring clip is centered in the opening of the caliper and is resting against both brake shoe assemblies.
8. Install the wheel and tire assembly. Tighten the wheel mounting stud nuts in proper sequence until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 122 Nm (90 ft. lbs.).
9. Lower vehicle.
10. Pump the brake pedal several times to ensure the vehicle has a firm brake pedal to adequately stop vehicle.
11. Check and adjust the brake fluid level as necessary.
12. Road test the vehicle, making several stops to wear off any foreign material on the brakes and to seat the brake shoe linings. If new shoes were installed, they need to burnished properly.