Manitowoc Grove GMK 5200-1 Maintenance Manual page 275

Maintenance manual
GMK5200-1
•
Raise the main boom to 15°.
•
Retract telescopic sections IV and V to 0%.
•
Fully extend and retract telescopic section V again so that the grease is
distributed over the telescope slide faces.
•
Lower the main boom to 0°.
•
Lubricate telescopic sections IV , III and II in the same way.
Before driving the truck crane
Fully retracting all telescopic sections of the main boom after greasing may
result in excess lubricant paste emerging at the collar (1).
•
Remove any excess lubricant paste from the collar (1).
This is to prevent any lumps dropping off on to the windscreen and sud-
denly obstructing the view when driving.
•
Raise the main boom to 15°.
•
Extend telescopic section IV to 0% and tele-
scopic section V to approx. 50%.
•
Lower the main boom to 0° – do not lower to
below 0°.
•
Extend telescopic section IV to approx. 75%.
•
Use the grease gun (PAL1) to lubricate the
upper inner slide faces at the lubricating nip-
ples (1) on both sides.
3 302 746 en
Maintenance work on the superstructure
8.7 Main boom
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