145
PK271
PK272
6. Remove the caliper holder from the caliper.
PK273
7. Cover the piston end of the housing with a shop
towel; then keeping fingers clear of piston travel.
Apply compressed air to the fluid port to blow the
piston free of the housing. Account for the dust and
piston seals.
PK274
PK275
8. Using an appropriate seal removal tool, carefully
remove the seals from the brake caliper housing.
Discard all seals, O-rings, and crush washers.
CLEANING AND INSPECTING
1. Clean all caliper components (except the brake pads)
with DOT 4 brake fluid. Do not wipe dry.
2. Inspect the brake pads for damage and excessive
wear.
NOTE: For measuring brake pads, see Periodic
Maintenance/Tune-Up - Hydraulic Brake System.
3. Inspect the brake caliper housings for scoring in the
piston bores, chipped seal ring grooves, or signs of
corrosion or discoloration.
4. Inspect the piston surface for scoring, discoloration,
or evidence of binding or galling.
5. Inspect the caliper holder for wear or bending.
ASSEMBLING/INSTALLING
1. Install the new piston seal (A) into the brake caliper
housing and apply a liberal amount of DOT 4 brake
fluid to the cylinder bore of the housing, seals, and
brake piston. Place the new dust seal onto the piston
(B).
PK276A
! WARNING
Make sure to hold the towel firmly in place or the piston
could be ejected from the housing causing injury.
CAUTION
Make sure the seals are properly in place and did not
twist or roll during installation.
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