Crane operation
11.5 Crane operation with main boom
11 - 104 3 302 736 en Operating manual
GMK4090
xx.xx.xxxx
If removing the load does not cause the lock to be released, you must lock
the telescoping cylinder (
à p. 11 - 104) and then restart unlocking.
Lock telescoping
cylinder
The telescoping cylinder must be locked to a telescopic section so that the
telescopic section can be telescoped.
Prerequisites
– Telescoping mechanism on – symbol (3)
green
– Telescopic section locked – symbol (1) green
– Telescoping cylinder unlocked – symbol (2)
red
Locking
• Move the telescoping cylinder to the desired
locking point, e. g. to telescopic section
1.
Wait until the display:
– shows the desired telescopic section (1)
and
– the symbols (4) are shown.
• Select and confirm the symbol (3). The lock-
ing pins (2) extend.
S
Risk of damage to the boom system
If extending and retracting several times does not lead to the lock being
released, you must not telescope any further against the stop.
–Yellow: Intermediate position
– Green: unlocked – symbol (5) displayed
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