Boom extension
4.1 Rigging work checklists
4 - 2 3 112 441 en Lattice extension operating instructions
GMK 4100/4100-L/5095
11.01.2008
5. Sling the necessary sections onto the auxiliary crane one after the other
and install them in front of the main boom:
– For 22 m (72 ft) boom extension, section 3
– For 27 m (89 ft) boom extension, first section 3 and then section 4;
à Slinging points, p. 2 - 5.
à Installing / removing section 3 and section 4, p. 4 - 9.
6. Sling the folded swing-away lattice on the auxiliary crane and fasten
the guide rope;
à Slinging points, p. 2 - 5.
7. Folded swing-away lattice:
– For 22 m (72 ft) boom extension, install in front of section 3.
– For 27 m (89 ft) boom extension, install in front of section 4;
à Installing / removing the swing-away lattice for the boom extension,
p. 4 - 11.
8. Fasten the guide rope to the head of section 2 of the swing-away lattice.
9. Move the connection in the
Middle area into the On section 1 position;
à p. 3 - 43.
10. Swing section 2 in front of section 1;
à When rigging – section 2,
p. 3 - 57.
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