Manitowoc Grove GMK4100L-1 Operating Manual page 570

Operating elements for crane operation
9.3 Short description of the operating elements – driving from the crane cab
9 - 160
Longitudinal differential lock display
The current status is shown using different
symbols:
1 Green – lock off
2 Red – lock on
3 Yellow – intermediate position
4 Violet – error
à
p. 13 - 29
3 302 690 en Operating manual
GMK4100L-1