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5.4 Guide pin dust cover and bush replacement

If the floating pin boot is broken , it will affect the slide of the caliper body and lead to big dragging moment and broken bush, and abnormal worn pads, it should be replaced in time.
Working process:



  1. Based on part 5.1, remove the caliper body;
  2. Remove the fixed pin and floating pin, take off the floating pin boot from the circular groove of the caliper;
  3. Use special spindle to press the bush out from the caliper lug hole, clean floating pin hole;

Installation:

  1. Use special pressing tool to press the bush, press one bush into the fixed pin and two bushes into floating pin.  Smear the lubricating oil into the bore surface;
  2. Install the new floating pin boot into the lug hole. Ensure that the boot is mounted in the circular groove of the inner hole without fold;
  3. Install the fixed pin, floating pin in the pin hole respectively and set the top of the boot in the circular groove of the floating pin;   
  4. Connect the caliper body with the bracket through pin link by floating pin bolt, move the caliper back and forth on the pin link to check whether the sliding is normal or not;
  5. Install the new cap on the caliper lug hole and use suitable tool to press it in;
  6. Install the pad, press plate and wear indicator press plate according to the requirement;

Caution:

  1. Do not damage the floating pin boot while installation.
  2. Do not damage the machining surface while disassembling and assembling;