Crane operation
11.3 Crane operation with main boom
Operating manual GMK 6400 3 112 993 en 11 - 89
12.07.2013
Locking telescopic
sections
Every telescopic section can be locked at the fixed lengths – fixed lengths;
à p. 11 - 73.
Requirements
– Telescoping mechanism on – symbol (3) is
green
– Telescopic section unlocked – symbol (2) is
yellow
– Telescoping cylinder locked – symbol (1) is
grey
To select lock
• Telescope to the desired fixed length, e.g.
telescopic section
III to 100%.
If necessary, wait until the telescopic section
moves past a non-desired fixed length by
approx. 5%, e.g. at 50% – display (2).
• Press the (1) button once.
Symbol (1) flashes –
Lock telescopic section is
selected.
Locking the telescopic section
• Move the control lever until locking is com-
plete.
The locking pins (3) extend at the locking
point.
The telescopic section is set down;
à p. 11 - 71.
In
Locked position:
– Symbol (1) is yellow
– Symbol (2) is grey
s
– Yellow: Intermediate position
– Green: Locked
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