Maintenance work on the superstructure
8.8 Main boom
16.11.2018
Maintenance manual 3 302 756 en 8 - 69
GMK6400
Lubricating the locking pins
• Use the grease gun (RHUS 2 AF) to lubricate
the locking pins at the grease nipples (1) on
both sides.
• Raise the main boom to 15°.
• Fully retract the telescopic section III.
• Fully retract the telescopic section IV.
• Lock and unlock the telescopic section IV
several times, so that the grease is distribut
-
ed over the locking pins.
• Fully extend and retract the telescopic section IV again so that the grease
is distributed over the slide faces.
• Lower the main boom to 0°.
• Lubricate the telescopic sections 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).
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