Crane operation
11.3 Crane operation with main boom
11 - 86 3 112 993 en Operating manual GMK 6400
12.07.2013
Unlocking the
telescopic section
Unlocking a telescopic section is required for the telescopic section to be
telescoped.
The telescoping cylinder and the telescopic section cannot be unlocked
simultaneously.
Requirements
– Telescoping mechanism on – symbol (2) is
green
– Telescopic section locked – symbol (1) is
grey
To select unlock
• Press the (1) button once.
– If the telescoping cylinder is locked: Symbol
(1) will flash –
Unlock telescopic section is
selected.
– If the telescoping cylinder 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 telescopic section
• Move the control lever for telescoping.
If required, extend the locking pins (3) first.
The locking pins (2) retract.
In the
Unlocked position, symbol (1) will be
yellow.
If the control lever is moved, the telescopic
section will immediately be telescoped.
1.
Lock the telescoping cylinder
2.
Unlock the telescopic section
–Yellow: Intermediate position
–Red: Unlocked
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