BRAKE DISC THICKNESS CHECK
- Remove contaminants or corrosion from the brake disc surface.
- Use a micrometer to measure the brake disc thickness at minimum eight points which are 10 mm (0.39 inch) inward from its circumference. Standard value: 24.0 mm (0.94 inch) < Front > 10.0 mm (0.39 inch) < Rear > 22.4 mm (0.88 inch) < Front > 8.4 mm (0.33 inch) < Rear >
- If the brake disc thickness is worn beyond the limit value at more than one point, replace the brake disc and check its run-out.
Place a dial gauge ca. 5 mm (0.2 inch) inward from the circumference of the brake disc to measure its run-out.
Limit
0.06 mm (0.0024 inch) < Front >
0.08 mm (0.0032 inch) < Rear >
Inspection of brake hoses should be included in all brake service operations.
The hoses should be checked for
Scheme 104
- Incorrect length, severe surface cracking, pulling, scuffing or worn spots. (If the fabric casing of the hoses is exposed by cracks or abrasion in the rubber hose cover, the hoses should be replaced. Eventual deterioration of the hose and possible bursting failure may occur).
- Incorrect installation, twisting or interference with wheel, tire or chassis.