Disc Brake Caliper - Jeep 1997 Grand Cherokee Service Manual

VACUUM HOSE BOOSTER STUDS
5 - 16 BRAKES
REMOVAL AND INSTALLATION (Continued)
INSTALLATION
(1) Remove protective cover from end of primary
piston.
(2) Bleed master cylinder.
(3) Slide master cylinder onto booster studs. Align
booster push rod in cylinder primary piston and seat
cylinder against booster.
(4) Install master cylinder mounting nuts and
tighten nuts to 18 N·m (155 in. lbs.). Use original
or factory replacement nuts only.
(5) Install combination valve and tighten mounting
nuts to 18 N·m (155 in. lbs.).
(6) Install brake lines that connect master cylinder
to combination valve.
(7) Fill and bleed brake system.
POWER BRAKE BOOSTER
REMOVAL
(1) Remove air filter housing.
(2) Remove master cylinder, combination valve,
and HCU.
(3) Disconnect vacuum hose at booster check valve
(Fig. 24).
Fig. 24 Booster Check Valve And Hose
(4) Remove retainer clip that holds booster push
rod on pedal pin (Fig. 25). Then slide push rod off
pin.
(5) Remove four locknuts that attach booster to
dash panel.
(6) In engine compartment, slide booster forward,
tilt it upward slightly, and remove it from engine
compartment.
(7) If booster will be stored on bench for any
length of time, cover booster with shop towels to pre-
vent dust entry and place short lengths of rubber
hose over booster studs to protect threads.
CHECK VALVE BUSHING (FOR PIN) PUSH ROD PIN BOOSTER LOCK 39 N·m (29 ft. BRAKE PEDAL AND BRACKET NUTS ASSEMBLY lbs.)
Fig. 25 Power Brake Booster Mounting
INSTALLATION
(1) Check condition of grommet that secures check
valve in booster. Replace grommet if cut, torn, or
loose (no longer secures valve tightly).
(2) Wipe booster mounting surface of dash panel
clean with shop towel.
(3) Align and position booster on engine compart-
ment side of dash panel.
(4) Inside passenger compartment:
(a) Lubricate pedal pin and bushing with Mopar
multi-mileage grease.
(b) Install booster attaching nuts on studs.
Tighten attaching nuts to 39 N·m (29 ft. lbs.).
(c) Slide booster push rod on pedal pin. Then
secure rod to pin with retainer clip.
(5) In engine compartment, attach vacuum hose to
booster check valve.
(6) Install master cylinder, combination valve, and
HCU. Refer to procedures in this section.
(7) Bleed brakes. Refer to section covering brake
bleeding.
(8) Install engine air cleaner and hoses.

DISC BRAKE CALIPER

REMOVAL
(1) Raise vehicle and remove front wheel and tire
assemblies.
(2) Remove and discard brake hose mounting bolt
(Fig. 26).
(3) Remove caliper mounting bolts.
DASH PANEL PUSH ROD RETAINER CLIP MASTER BOOSTER ASSEMBLY FLOORPAN CYLINDER/BRAKE PUSHROD BOOSTER FWD
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