Jeep Cherokee 2000 Service Manual - page 200
This will cushion and protect caliper piston during
removal (Fig. 45).
(4) Remove caliper piston with short bursts of
low pressure compressed air. Direct air through fluid
inlet port and ease piston out of bore (Fig. 46).
CAUTION: Do not blow the piston out of the bore
with sustained air pressure. This could result in a
cracked piston. Use only enough air pressure to
ease the piston out.
WARNING: NEVER ATTEMPT TO CATCH THE PIS-
TON AS IT LEAVES THE BORE. THIS MAY RESULT
IN PERSONAL INJURY.
(5) Remove caliper piston dust boot with suitable
pry tool (Fig. 47).
(6) Remove caliper piston seal with wood or plastic
tool (Fig. 48). Do not use metal tools as they will
scratch piston bore.
(7) Remove caliper mounting bolt bushings and
boots (Fig. 49).
ASSEMBLY
CAUTION: Dirt, oil, and solvents can damage cali-
per seals. Insure assembly area is clean and dry.
(1) Lubricate caliper piston bore, new piston seal
and piston with clean brake fluid.
(2) Lubricate caliper bushings and interior of
bushing boots with silicone grease.
(3) Install bushing boots in caliper, then insert
bushing into boot and push bushing into place (Fig.
50).
(4) Install new piston seal into seal groove with
finger (Fig. 51).
(5) Install new dust boot on caliper piston and seat
boot in piston groove (Fig. 52).
(6) Press piston into caliper bore by hand, use a
turn and push motion to work piston into seal (Fig.
53).
(7) Press caliper piston to bottom of bore.
Fig. 45 Padding Caliper Interior
1 – SHOP TOWELS OR CLOTHS
2 – CALIPER
Fig. 46 Caliper Piston Removal
1 – AIR GUN
2 – CALIPER PISTON
3 – PADDING MATERIAL
Fig. 47 Caliper Piston Dust Boot Removal
1 – COLLAPSE BOOT WITH PUNCH OR SCREWDRIVER
2 – PISTON DUST BOOT
5 - 26
BRAKES
XJ
DISASSEMBLY AND ASSEMBLY (Continued)