Rear

Perform the following rear disc brake pad inspection twice a year:
1. Inspect the rear disc brake pad linings for taper or uneven wear.
2. Look through the window in the top of the caliper to check the comparative thickness of the pad linings (1). Ensure the pad linings have even wear. An unevenly worn brake pad can indicate a piston or pistons that are not retracting properly.
3. Replace the brake pads when the thickness of any lining is worn to within 0.76 mm (0.030 inch) of the shoe. Ensure to replace all brake pads in axle sets only.
4. Perform the following steps to measure the flatness of the brake pad linings:
a. Place the brake pad surfaces together.
b. Check for a gap between the surfaces.
c. Replace the brake pads if more than 0.13 mm (0.005 inch) gap is measured between the brake pads.