239
NOTE: If brake pads are to be returned to service,
do not allow brake fluid to contaminate them.
PR237A
PR238
5. Remove the caliper holder from the caliper and dis-
card the O-ring.
PR239B
NOTE: The O-ring is used for shipping purposes
and provides no function in operation.
6. 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 two seal rings
in the housing.
PR713A
PR715
7. Using an appropriate seal removal tool, carefully
remove the seals from the brake caliper housing;
then remove four O-rings from the brake caliper
housing noting the location of the different sized
O-rings. Discard all seals, O-rings, and crush wash-
ers.
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.
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.
! WARNING
Make sure to hold the towel firmly in place or the piston
could be ejected from the housing causing injury.
