Operating elements for crane operation
9.2 Short description of the operating elements
9 - 112 Operating manual
GMK5150L
Lifting cylinder position display
The current position of the counterweight
lifting cylinders is shown by different symbols:
à p. 12 - 103
Extending/Retracting the lifting cylinders
Pre-tensioning pressure display
1 Green – extended
2 Green – retracted
3 Yellow – intermediate position
4 Violet – error
5 Extended length in per cent (%)
1 Extend:
– Display (5) and symbol (3) yellow or
– Display (6) and symbol (4) yellow
Select symbol and confirm – slewing is
disabled after extending
2 Retract:
Select symbol and confirm – after
reaching the end position, the
counterweight is pre-tensioned
The movement stops after the button is
released, and when an end position is
reached;
à p. 12 - 103.
– Green: Pre-tensioning pressure reached
–Red: Pre-tensioning pressure too low – pre-tension the
counterweight
à p. 12 - 105