Brake Pad: Service and Repair

REPLACEMENT
1. Remove front wheel.





2. Inspect pad lining thickness.
Check the pad thickness and replace pads if not within specification.
Minimum thickness: 1.0 mm (0.039 inch)

Brake Pads Replacement (Part 2 Of 3):

3. Remove these parts:
- Clip
- 2 pins
- Anti-rattle spring
- 2 pads
- 4 anti-squeal shims

NOTICE: The anti-rattle spring can be used again provided that they have sufficient rebound, no deformation, cracks or wear, and have had all rust, dirt and foreign particles cleaned off.

4. Check disc thickness and runout.
a. Measure disc thickness





Using a micrometer, measure the disc thickness.
Standard thickness: 25.0 mm (0.984 inch)
Minimum thickness: 23.0 mm (0.906 inch)
Replace the disc if the thickness of the disc is at the minimum thickness or less. Replace the disc or grind it on a lathe if it is scored or is worn unevenly.
b. Measure disc runout.





Using a dial indicator, measure the disc runout 10 mm (0.39 inch) from the outside edge of the disc.
Maximum disc runout: 0.07 mm (0.0028 inch)
If the runout is greater than the maximum, replace the disc or grind it on a "On-Car" brake lathe.

HINT: Before measuring the runout, check that the front hub bearing play is within specification.

5. Install new pads.

NOTICE: When replacing worn pads, the anti-squeal shims must be replaced together with the pads.

a. Draw out a small amount of brake fluid from the reservoir.

Brake Pads Replacement (Part 3 Of 3):

b. Press in the pistons with a hammer handle or equivalent.

HINT:
- Always change the pad on one wheel at a time as there is a possibility of the opposite piston flying out.
- If the piston is difficult to push in, loosen the bleeder plug and push in the piston while letting some brake fluid escape.

c. Install the 4 anti-squeal shims to new pads.





HINT: Apply disc brake grease to the inner anti-squeal shims.

d. Install the 2 pads.

NOTICE: Do not allow oil or grease on the rubbing face.

6. Install anti-rattle spring and 2 pins.
7. Install clip.