Maintenance work on the superstructure
8.11 Main boom
8 - 92 3 302 577 en Maintenance manual
GMK7450
16.08.2018
Telescopic
section
IV
• Retract all telescopic sections.
• Enter the RCL rigging code for the current rigging mode of the truck crane.
• Telescope telescopic section IV to the first locking position (44%) and
lock it.
• Override the RCL,
To do this, turn the Override key-operated switch to the right.
• Extend telescopic section III to approx. 88% until the lubricating hole for
telescopic section
IV can be reached in the top chord.
• Use the grease gun (PAL1) to lubricate the upper slide faces at the lubri-
cating nipples (1) on both sides.
• Fully retract telescopic section III.
• Turn off the RCL override.
• Fully extend telescopic section IV.
• Use a brush or a roller (PAL1) to lubricate the outer upper and lower slide
faces of telescopic section
IV.
• Extend and retract telescopic section IV again so that the grease is distrib-
uted uniformly on the telescopic slide faces.
• Retract telescopic section IV.
Telescopic
section
III
• Retract all telescopic sections.
• Enter the RCL rigging code for the current rigging mode of the truck crane.
• Telescope telescopic section III to the first locking position (44%) and
lock it.
• Override the RCL,
To do this, turn the Override key-operated switch to the right.
• Extend telescopic section II to approx. 88% until the lubricating hole for
telescopic section
III can be reached in the top chord.
• Use the grease gun (PAL1) to lubricate the upper slide faces at the lubri-
cating nipples (1) on both sides.
• Fully retract telescopic section II.
• Turn off the RCL override.
• Fully extend telescopic section III.
• Use a brush or a roller (PAL1) to lubricate the outer upper and lower slide
faces of telescopic section
III.
• Extend and retract telescopic section III again so that the grease is distrib-
uted uniformly on the telescopic slide faces.
• Fully retract telescopic section III.
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