Manitowoc Grove GMK6300L Operating Manual page 952

Malfunctions during crane operation
14.5 Emergency operations and programs
S
14 - 52
Extending and locking the telescoping cylinder
You may not select Lock while the telescoping cylinder is retracting or
extending. Under no circumstances should you press the button (2).
Risk of damage to the main boom!
If you select Lock while the telescoping cylinder is moving, the locking pins
on the telescopic section are slid out immediately and they can damage or
tear the electrical or hydraulic components in the main boom.
•
Slowly move the telescoping cylinder into the next extended telescopic
section.
•
You can now retract this telescopic section;
•
Press the button (1) once (at the most
twice).
The telescoping cylinder is now unlocked. In
Unlocked position:
– The locking pins (3) are red,
– Symbol (1) is yellow,
– Symbol (2) is grey.
You can now move the telescoping cylinder
into the next telescopic section.
At the locking point:
– the arrows (4) are green,
– the display (5) shows the length for the
current locking point;
•
Press the button (2) once.
The telescoping cylinder is now locked.
In Locked position:
– the locking pins (3) are green,
– the symbol (1) is grey,
– the symbol (2) is yellow.
3 112 xxx en
à
p. 14 - 55.
à
p. 14 - 51.
Operating Manual GMK6300L