Manitowoc Grove TMS800E Service And Maintenance Manual page 270

POWER TRAIN
SYMPTON
Insufficient release
(continued).
7-38
PROBABLE CAUSE
Pressure plate return springs
bent or stretched.
Insufficient amount of release
travel.
Lever nose out of groove in
release sleeve retainer.
Driven disc distorted or
warped.
Splines worn on main drive
gear of transmission.
Internal clutch adjustment not
correct.
Flywheel pilot bearing fitting
too tight in flywheel or on end
of drive gear.
Facings gummed with oil or
grease.
Damaged clutch release
bearing.
Clutch release shaft projecting
through release yoke.
Release yoke contacting
cover assembly at full release
position.
Release yoke will not align
with release bearing properly.
Published 01-29-2014, Control # 496-00
TMS800E SERVICE MANUAL
SOLUTION
Replace springs.
Adjust for proper release travel.
Disassemble and repair as
necessary.
Driven disc assembly must be
straight within 0.381 mm (0.015
in) total indicator reading.
Replace discs.
Damage to driven disc can be
caused by poor installation
methods. Do not force
transmission drive gear into disc
hubs. This will distort or bend
driven disc causing poor
release. Replace the drive disc.
Replace drive gear and check
driven disc hubs for excessive
wear. If worn, replace disc.
Check flywheel housing
alignment of engine and
transmission. Make sure driven
discs slide freely on drive gear
splines.
Readjust clutch for standard
release travel.
Free pilot bearing to a light push.
Fit in flywheel and on drive gear
pilot. If bearing is rough, replace.
Replace facings or entire driven
disc assembly.
Replace bearing.
Relocate release shaft so it does
not project. Check bell housing
bushings and release yoke for
wear.
Replace release yoke with
proper yoke.
Flywheel has been resurfaced
more than the recommended
1.524 mm (0.060 in) removal.
Replace flywheel.