Manitowoc Grove GMK6300L Operating Manual page 296

Driving modes
6.4 Main boom, removing/installing
6 - 24
5. On the boom pivot pin:
– Switch the hydraulic circuit over,
– Push in the pivot pin,
à
p. 6 - 33.
6. Set down the main boom in the boom rest with the auxiliary crane and
remove the lifting gear.
7. On the derricking cylinder head:
– Level the derricking cylinder,
– Fit the head pin,
– Secure the head pin;
à
p. 6 - 30.
8. Switch off the derricking cylinder pressure relief;
9. Raise main boom and
– attach the clamps for the hoses;
– make the hydraulic and electrical connections;
3 112 xxx en
à
p. 6 - 29.
à
p. 6 - 28,
à
p. 6 - 36.
Operating Manual GMK6300L