Crane operation
11.3 Crane operation with main boom
11 - 82 3 112 993 en Operating manual GMK 6400
12.07.2013
To select unlock
• Press the (1) button once.
– If the telescopic section is locked:
Symbol (1) will flash –
Unlock telescoping
cylinder
is selected.
– If the telescopic section is unlocked:
Symbol (2) will flash – the following is
selected.
In the next step, both selections are carried
out one directly after the other.
Unlocking the telescoping cylinder
• Move the control lever for telescoping.
If required, extend the locking pins (2) first.
The locking pins (3) retract.
In the
Unlocked position, symbol (1) will be yel-
low.
If the control lever is moved, the telescoping
cylinder will move immediately.
1.
Locking the telescopic section
2.
Unlock the telescoping cylinder
–Yellow: Intermediate position
–Red: Unlocked