Manitowoc Grove GMK 4100L-1, Operating Manual

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Crane operation
11.5 Crane operation with main boom
11 - 106 3 302 690 en Operating manual
GMK4100L-1
2
3
.1
1.
201
7
If removing the load does not cause the lock to be released, you must lock
the telescoping cylinder (
à
p. 11 - 106) 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, for example, to telescopic
section
1
.
Wait until the display:
– shows the desired telescopic section ( 1 )
and
– the symbols ( 4 ) are shown.
•
Select the symbol ( 3 ).
•
Confirm the selection – the locking pins ( 2 )
will extend – symbol ( 2 ) green .
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.