Manitowoc Grove GMK6300L - Page 293

Driving modes
6.4 Main boom, removing/installing
Operating Manual GMK6300L 3 112 xxx en 6 - 21
xx.xx.xxxx
4. Sling the main boom to an auxiliary crane; à p. 6 - 26.
5. Switch on the derricking cylinder pressure relief;
à p. 6 - 29.
6. On the derricking cylinder head:
– Take the load off of the head pin,
– Release the head pin,
– Pull the head pins out;
à p. 6 - 30.
7. On the boom pivot pin:
– Switch the hydraulic circuit over,
– prepare the pulling device,
– Pull out the pivot pin;
à p. 6 - 33.
8. Raise the main boom from the turntable;
à p. 6 - 38.
s