Crane operation
11.5 Crane operation with main boom
Operating manual 3 302 709 en 11 - 107
GMK5150L
12.01.2018
Unlocking the
telescopic section
Unlocking a telescopic section is required for the telescopic section to be tel-
escoped.
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 and confirm the symbol (1).
The locking pins (2) retract.
If symbol (2) is not red after about 10 seconds,
this means that the locking pins are under
load.
To relieve the load, carefully retract and
extend a little.
s
–Yellow:Intermediate position
–Red: Unlocked – symbol (3) displayed
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