Crane operation
11.5 Crane operation with main boom
Operating manual 3 302 690 en 11 - 107
GMK4100L-1
23.11.2017
Unlocking the
telescopic section
Unlocking a telescopic section is required for the telescopic section to be
telescoped.
The telescoping cylinder and the telescopic section cannot be unlocked
simultaneously.
Prerequisites
– Telescoping mechanism on – symbol (3)
green
– Telescopic section locked – symbol (1) green
– Telescoping cylinder locked – symbol (2)
green
Unlocking
• Select the symbol (1).
• Confirm the selection – the locking pins will
retract. Symbol (2) red.
If symbol (2) is not rot after about 10 seconds,
this means that the locking pins are under
load.
To relieve the load, carefully retract and
extend a little.
s
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