Jeep cherokee 2000 Service Manual page 1221

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DISASSEMBLY AND ASSEMBLY (Continued)
(3) Check clutch piston stroke length as outlined
in following steps.
(4) Mount direct clutch on overdrive support
assembly (Fig. 240).
Fig. 240 Mount Direct Clutch On Overdrive Support
1 – DIRECT CLUTCH
2 – OVERDRIVE SUPPORT
(5) Mount dial indicator on clutch and position
indicator plunger on clutch piston (Fig. 241).
(6) Apply 57–114 psi air pressure through feed
hole in overdrive support and note piston stroke
length (Fig. 241). Check stroke at least twice.
(7) Piston stroke length should be 1.37 mm – 1.67
mm (0.054 – 0.065 in.). If stroke length is incorrect,
either the clutch pack retainer or clutch discs will
have to be replaced.
(8) Remove clutch pack snap ring and remove
retainer and clutch pack from drum (Fig. 242).
(9) Compress clutch piston return springs with tool
7538 and remove clutch piston snap ring (Fig. 243).
(10) Remove compressor tool and return spring.
(11) Remove clutch piston. Remount clutch on
overdrive support (Fig. 244). Apply compressed air
through piston feed hole in support to remove piston.
Use only enough air to ease piston out.
(12) Remove and discard clutch piston O–rings.
(13) Measure clutch disc thickness. Minimum
allowable thickness is 1.84 mm (0.0724 in). Replace
clutch pack if any disc is below minimum thickness.
(14) Measure free length of piston return springs
with springs in retainer (Fig. 245). Length should be
21.32 mm (0.839 in.). Replace return springs if not
within specification.
AW–4 AUTOMATIC TRANSMISSION
Fig. 241 Checking Direct Clutch Piston Stroke
1 – INDICATOR PLUNGER
2 – DIAL INDICATOR
3 – CLUTCH PISTON
4 – OVERDRIVE SUPPORT
5 – CLUTCH PISTON
Fig. 242 Removing Clutch Pack Snap Ring
1 – CLUTCH PACK SNAP RING
2 – DIRECT CLUTCH DRUM
(15) Check clutch piston check ball (Fig. 246).
Shake piston to see if ball moves freely. Then check
ball seating by applying low pressure compressed air
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Length