Jeep Cherokee 2000, Service Manual

Page: 213 / 1528

OPERATION
The clutch pressure plate assembly clamps the
clutch disc against the flywheel. When the release
bearing is depressed by the shift fork, the pressure
exerted on the clutch disc by the pressure plate
spring is decreased. As additional force is applied,
the bearing presses the diaphragm spring fingers
inward on the fulcrums. This action moves the pres-
sure plate rearward relieving clamp force on the disc.
The clutch disc is disengaged and freewheeling at
this point.
CLUTCH RELEASE BEARING
DESCRIPTION
A conventional release bearing (Fig. 6) is used to
engage and disengage the clutch pressure plate
assembly. The clutch release bearing is mounted on
the transmission front bearing retainer. The bearing
is attached to the release fork, which moves the bear-
ing into contact with the clutch cover diaphragm
spring.
OPERATION
The release bearing is operated by a release fork in
the clutch housing. Slave cylinder force causes the
release lever to move the release bearing into contact
with the diaphragm spring. As additional force is
applied, the bearing presses the diaphragm spring
fingers inward on the fulcrums. This action moves
the pressure plate rearward relieving clamp force on
the disc. Releasing pedal pressure removes clutch
hydraulic pressure. The release bearing then moves
away from the diaphragm spring which allows the
pressure plate to exert clamping force on the clutch
disc.
Fig. 4 Clutch Disc-Typical
1 – FACING MATERIAL
2 – DAMPER SPRINGS
3 – HUB
Fig. 5 Clutch Pressure Plate-Typical
1 – COVER
2 – RELEASE FINGERS
3 – PRESSURE PLATE
Fig. 6 Clutch Release Bearing
1 – RELEASE BEARING
2 – RELEASE FORK
XJ
CLUTCH 6 - 3
DESCRIPTION AND OPERATION (Continued)