Manitowoc Grove GMK6300L Operating Manual page 540

Operating elements for crane operation
9.2 Short description of the operating elements
9 - 76
Lifting cylinder position display
The current position of the counterweight lift-
ing cylinders is shown by different symbols:
1 Green – extended
2 Green – retracted
3 Yellow – intermediate position
4 Violet – error
à
p. 12 - 76
Extending/retracting the lifting cylinders
1 Extend:
– Display (5) and symbol (3) yellow or
– Display (6) and symbol (4) yellow
Press button – slewing is blocked after
extension
2 Retract:
Press button – after reaching the end
position, the counterweight is
pre-tensioned
The movement stops after the button is
released, and when an end position is
à
reached;
3 112 xxx en
p. 12 - 76.
Operating Manual GMK6300L