Front Servo Piston - Jeep cherokee 2000 Service Manual

21 - 176 AUTOMATIC TRANSMISSION—30RH
DISASSEMBLY AND ASSEMBLY (Continued)
(b) Install clutch assembly on low-reverse drum
with twisting motion (Fig. 167).
(c) Install drum-clutch assembly in case and
install clutch cam bolts.
(d) Install rear support and support attaching
bolts.
(e) Check low-reverse drum rotation. Drum
should rotate freely in clockwise direction
and lock when turned in counterclockwise
direction (as viewed from front of case).
Fig. 167 Temporary Assembly Of Clutch And Drum
To Check Operation
1 – LOW-REVERSE DRUM
2 – CLUTCH RACE (ON HUB OF DRUM)
3 – OVERRUNNING CLUTCH

FRONT SERVO PISTON

DISASSEMBLY
(1) Remove seal ring from rod guide (Fig. 169).
(2) Remove small snap ring from servo piston rod.
Then remove piston rod, spring and washer from pis-
ton.
(3) Remove and discard servo component O-ring
and seal rings.
ASSEMBLY
(1) Lubricate new O-ring and seal rings with
petroleum jelly and install them on piston, guide and
rod.
(2) Install rod in piston. Install spring and washer
on rod. Compress spring and install snap ring (Fig.
169).
(3) Set servo components aside for installation dur-
ing transmission reassembly.
Fig. 168 Assembled Overrunning Clutch
1 – LOW-REVERSE DRUM
2 – OVERRUNNING CLUTCH CAM
3 – ROLLER AND SPRING ASSEMBLY
4 – CLUTCH RACE
5 – HUB OF LOW-REVERSE DRUM
Fig. 169 Front Servo
1 – PISTON RINGS
2 – O-RING
3 – SNAP-RING
4 – SEAL RING
5 – PISTON ROD GUIDE
6 – SNAP-RING
7 – SERVO SPRING
8 – PISTON ROD
9 – SERVO PISTON
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