General Inspection; Checking The Hoist Brake - Manitowoc Grove GMK 5200-1 Maintenance Manual

Maintenance work on the superstructure
8.3 Hoists
8.3.2
8.3.3
8 - 10

General inspection

•
Pay attention to any unusual running noises from the hoists.
•
Check the hoists and the connections for leaks. If consumables are leak-
à
Checking the oil level , p. 8 - 9.
ing;
•
Check that pipes and hoses are tightly connected and not damaged.
If any damage is found, report it to
GROVE dealer or your repair crew.

Checking the hoist brake

Check that the hoist brake is working correctly on the main hoist and the
auxiliary hoist.
•
Attach the hook block to the hoist rope, reeved once.
•
Lift a load of approx. 9.5 t (21,000 lbs) to approx. 30 cm (1.0 ft) above the
ground.
•
Measure the distance to the ground when the load is hanging completely
still.
•
Switch off the engine.
If the load has not lowered after approx. 2 minutes, the brake is currently in
working order.
If the load lowers, notify
dealer.
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Manitowoc Crane Care
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or an authorised GROVE
Maintenance manual
GMK5200-1
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