Maintenance work on the superstructure
8.11 Main boom
8 - 88 3 302 577 en Maintenance manual
GMK7450
16.08.2018
Telescopic sec-
tion
II -IV
• Retract all telescopic sections.
• Enter the RCL rigging code for the current rigging mode of the truck crane.
The procedure is the same for the telescopic
sections
II -IV.
• (A) – Mechanically lock the telescopic sec-
tion to the 100% fixed length, e.g. telescopic
section
IV.
• (B) – Override the RCL.
• Extend the next smallest telescopic section
approx. 1.50 m (5 ft), e.g. telescopic
section
III.
• Lubricate the locking pins (1) in the same
way as for telescopic section
I; à P. 8 - 87.
• Retract all telescopic sections.
G
Risk of overturning when telescoping if the RCL is overridden!
You must override the rated capacity limiter (RCL) in order to telescope a
second telescopic section in a
horizontal position.
When the RCL is overridden, only carry out a telescopic extension as far as
specified here. In this
way, you avoid overturning the truck crane – even
when it is rigged with a 60 t counterweight and the superstructure is rotated
to the rear.
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