Lubricate Winch Bearings - Manitowoc GHC75 Maintenance Instructions Manual

Crane Care

8.5 Lubricate winch bearings

Personnel
Service Technician
21.12.2017
Special tool:
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Materials:
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Release the oil when the machine is at operating temperature.
Park the machine.
1.
Secure the machine against being restarted without authori-
2.
zation.
Attach the fall arrest safety harness to an attachment point in
3.
the upper carriage.
4. Place a suitable collecting vessel under the winch oil drain
screw.
Unscrew the oil filling screw from the oil level display.
5.
Unscrew the oil release screw from the engine flange.
6.
ð Completely drain the winch oil.
7. Rinse the winch gear with fresh oil.
Clean the winch components, check seals and replace, if
8.
necessary.
Screw in the oil release screw.
9.
Maximum tightening torque moment = 30 Nm
Fill with new gear oil using a funnel or hose until the required
10.
oil level has been reached.
ð The oil level moves between the MIN and MAX markings.
11. Dispose of the drained winch oil in accordance with regula-
tions.
Check the oil level immediately after winch start-up when the
gearbox is idle, and top-up fill-level if necessary.
With winches that have a hose on the oil release screw, unscrew
the hose blind plugs and carry out the work steps analogously.
Interval
Every 6 months
Preliminary
GHC75 Telescopic crane
Load hoist mechanism
Lubricate winch bearings
collecting vessel
Spanner
Cleaning cloths
Winch oil
Seals
83