2. Check the thickness of the friction material remaining on both brake pads through the groove in the brake caliper body (Figure 9.13). If the friction material of any pad is worn to minimum thickness or less, all four front brake pads must be replaced as described below.
Figure 9.13. Checking the residual thickness of the brake pad friction material
3. To check, the brake pads must be removed and cleaned. This should be done at the following service intervals.
4. Move the caliper housing outward, removing the friction material. If the pads are unevenly worn or contaminated with oil, find and eliminate the cause of contamination before installation.
8. If the pads are still serviceable, clean them with a clean wire brush. Clean the grooves in the friction material (if any), gaskets, anti-rattle springs and the location of the pad in the caliper body and suspension.
9. Installation is carried out in reverse order. Install the wheel.
10. Repeat the procedure on the opposite brake caliper, lower the vehicle, tighten the wheel nuts to the tightening torque specified in the Specifications.
11. Check the hydraulic fluid level.
Figure 9.14 Rotate the caliper body upward to release the front brake pads - note the location of the shim and anti-rattle spring
Text duplicated from the website Nissanbook.ru