Manitowoc Grove GMK4100L-1 Operating Manual page 842

Rigging work
12.9 Rigging/unrigging the counterweight
Locking
12 - 96
You must lock the rear counterweight platform after the counterweight has
been set down for transport.
•
Remove the pins (1) from the clamps (2) and
insert them into the connecting points (3).
•
Secure the pins.
If the counterweight platform is not correctly
mechanically locked, then a warning will show
in the driver's cab;
3 302 690 en
à
Counterweight , p. 8 - 16.
Operating manual
GMK4100L-1