Manitowoc MLC300 Service And Maintenance Manual

Reference Only
POWER TRAIN MLC300 SERVICE/MAINTENANCE MANUAL
7-18
Published 11-22-17, Control # 257-02
ENGINE CLUTCH MAINTENANCE
A disc-type, manually operated clutch (see Figure 7-16) is
mounted between the engine and the pump drive. The clutch
allows the pump drive to be disconnected from the engine,
thereby reducing engine load and making startup easier in
cold weather. The clutch can be engaged or disengaged
while the engine is running or off.
Monthly
1. Grease the clutch monthly. See Section 9: Lubrication
for more information.
2. At least once each month, park all crane functions and
disengage and engage the clutch several times with the
engine running. This practice cleans the disc surfaces
and prevents the discs from seizing.
3. When disengaging the clutch, check free travel. Free
travel should be 19,1 mm (3/4 in) (see Figure 7-16
).
Readjust the clutch when free travel is less than
19,1 mm (3/4 in).
Adjustment
The clutch is adjusted internally through the hand hole in the
clutch housing. See the manufacturer’s manual for
adjustment instructions.
CAUTION
Parts Damage!
Do not run the engine longer than 20 minutes with the
clutch disengaged. The clutch release bearing can be
damaged.
DANGER
Moving Machinery Hazard!
The parts inside the clutch rotate when the engine is
running. Stop the engine and lockout-tagout the crane
before adjusting the clutch.
Item Description
1Pump Drive
2 Engine Clutch
3 Clutch Lever Disengaged
4 Clutch Lever Engaged
5 Free Travel: 19,1 mm (3/4 in)
6 Release Travel: 12,7–14,3 mm (1/2–9/16 in)
7 Free Travel Between Yoke and Wear Pads:
3,2 mm (1/8 in)
8Yoke
FIGURE 7-16

Manitowoc MLC300 Specifications

General

Brand	Manitowoc
Model	MLC300
Category	Construction Equipment
Language	English