Crane operation
10.5 Crane operation with main boom
Operating Instructions GMK5250L 3 302 633 en 10 - 107
27.09.2017
If removing the load does not cause unlocking, you must lock the telescopic
section (
à p. 10 - 108) and restart unlocking.
Telescoping the
telescopic section
You can telescope the telescopic section once it is unlocked.
Prerequisites
– Telescoping mechanism on – symbol (3)
green
– Telescoping cylinder locked – symbol (2)
green
– Telescopic section unlocked – symbol (1)
red
Telescoping
If the requirements for telescoping are met,
the symbol (3) flashes.
• Move the control lever in the desired tele-
scoping direction.
The display (1) shows the current extended
length (telescoping in metres).
The current telescope diagram on the
display (2) will change continually.
s
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.
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