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Rear Disc Brake Mounting and Hardware Inspection

Warning: Refer to Brake Dust Warning in the Preface section.

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.


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  1. Install a large C-clamp, over the body of the brake calliper with the C-clamp ends against the rear of the calliper body and against the outer brake pad.
  2. Caution: When using a large C-clamp to compress a calliper piston into a calliper bore of a calliper equipped with an integral park brake mechanism, do not exceed more than 1 mm (0.039 in) of piston travel. Exceeding this amount of piston travel will cause damage to the internal adjusting mechanism and/or the integral park brake mechanism.

  3. Tighten the C-clamp just enough to compress the calliper piston 1 mm (0.039 in) of travel only.
  4. Remove the C-clamp from the calliper.
  5. Grasp the brake calliper and attempt to move the brake calliper vertically. The brake calliper should not exhibit excessive looseness.
  6. Without disconnecting the hydraulic brake flex hose, remove the calliper from the calliper bracket, and support the calliper. Refer to Rear Brake Calliper Replacement .
  7. Inspect the calliper bolts to ensure that they are not bent or damaged. If the bolts are bent or damaged, the bolts require replacement.

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  9. Ensure the disc brake pads are held firmly in place on the brake calliper mounting bracket, yet slide easily on the mounting hardware (3) without binding.
  10. Inspect the disc brake pad mounting hardware, pad retainers (3), for the following:
  11. • Bent mounting tabs
    • Excessive corrosion
    • Looseness at the brake calliper mounting bracket
    • Excessive wear and/or looseness at the disc brake pads
    • Missing mounting hardware
  12. If any of the conditions listed are found, the disc brake pad mounting hardware requires replacement.
  13. Inspect the brake calliper guide pins (1, 4) by gently pushing inward, without disengaging the slides from the boots, then pull outward, and observe for the following:
  14. • Restricted calliper guide pin movement
    • Corrosion
    • Split or torn boots (2)
    • Missing boots
    • Looseness in the brake calliper mounting bracket
    • Seized or binding calliper guide pins
  15. If any of the conditions listed are found, the brake calliper mounting hardware requires replacement.
  16. Inspect the brake calliper mounting bracket for being bent, cracked, or damaged.
  17. If any of the conditions listed are found, the brake calliper mounting bracket requires replacement.
   


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