Manitowoc Grove TMS700E Service And Maintenance Manual page 243

TMS700E SERVICE MANUAL
The release levers of new or factory exchange cover
assemblies are properly adjusted and locked at assembly
and will not require further adjustment. However, after the
transmission has been securely attached to the engine, the
release sleeve must be adjusted until the correct distance
between the surface of the release bearing housing and the
front brake disc is obtained.
1. Clutch brake squeeze should begin 25 mm (1.0 in)
above the pedal stroke. This is controlled by adjusting
the rod end bearings evenly at each rod end. Lengthen
the rod to squeeze closer to end of pedal stroke.
2. Visually check the travel of the release bearing after
working the pedal several times. Release travel should
be 13 to 14 mm (1/2 to 9/16 in).
3. Make internal clutch adjustment for proper clearance as
follows.
a. Insert a 3/4 inch socket (12 points) or a 3/4 inch box
end wrench through the inspection hole and
depress the square headed bolt to adjust the clutch.
b. Turning the bolt 2-1/3 rotations changes the
adjustment 3 mm (1/8 in). The Kwik-Adjust will
reengage at a quarter of a turn. The flat of the bolt
will align with the flat edge of the bracket.
4. Set the clutch pedal free travel to 25 to 38 mm (1.0 to 1.5
in) using the adjusting screw on the clutch pedal
adjusting lever.
5. After all adjustments are made, tighten all jam nuts to
lock rod end bearings to the control rods and pivot arms.
6. Install the inspection plate on the bottom of the clutch
housing and road test the crane for proper clutch
operation.
7. After installing transmission, perform Clutch Adjustment
Procedure on page 7-46.
Clutch Adjustment Inspection Procedure
1. Remove inspection plate from bottom of clutch housing.
2. Depress the clutch pedal several times and check for the
13 to 14 mm (1/2 to 9/16 in) throw-out bearing travel.
Readjust if necessary.
3. Verify there is 25 to 38 mm (1.00 to 1.50 in) of free travel
of the clutch pedal. Make adjustments as needed.
4. Reinstall the inspection plate on the bottom of the clutch
housing.
5. Road test the machine to verify proper clutch operation.
Grove
Throw-Out Bearing
Sleeve Locknut
Spanner Adjusting
Nut
FIGURE 7-26
General Maintenance
1. Never underestimate the necessity of perfect clutch
balance. For example, just 3 ounces of clutch unbalance
at 300 rpm is enough to fracture a crankshaft!
2. Pressure plates dished as much as 1.5 mm (0.060 in)
are reground by some rebuilders! Not enough metal
remains to dissipate heat. That means quick failure.
3. You should never wait for a clutch to slip before
adjusting! Regular inspection of the release bearing
clearance insures proper adjustment.
4. Misalignment will cause chatter, grab, drag, or vibration,
or all four! Alignment of clutch and all other drive-line
parts should be checked before putting crane into
service.
Lubrication
Perform periodic free-travel checks and adjustment, and
lubrication of the clutch's throw-out bearing with high
temperature grease for trouble-free clutch operation. Do not
use chassis grease on the throw-out bearing. Lubricate
clutch pedal to clutch linkage grease fittings with chassis
grease. Refer to Lubrication on page 9-1.
Published 01-29-2015, Control # 512-01
POWER TRAIN
Clutch Housing
13 to 14 mm
(1/2 to 9/16 in)
clearance
Brake Disc
Clutch Release
Yolk
6995-2
7
7-39