Manitowoc Grove GMK4100L-1 Operating Manual page 750

Rigging work
12.1 Rigging work checklists for crane operation with the main boom
12 - 4
12. Switch off the engine
13. Earth the truck crane, if necessary;
14. Inspect the truck crane, while looking out in particular for any leaking
fluids (oil, fuel or water).
15. Start the engine for crane operation;
16. Unlock the turntable and if necessary switch off the houselock;
à
Unlocking the superstructure , p. 11 - 16,
à
Switching off the houselock , p. 11 - 19.
à
3 302 690 en
Earthing the truck crane , p. 12 - 15.
à
p. 10 - 3.
Operating manual
GMK4100L-1