Swing-away lattice
3.4 Description of the rigging work
Lattice extension operating instructions 3 112 441 en 3 - 55
GMK 4100/4100-L/5095
11.01.2008
3.4.10 Swinging the swing-away lattice during rigging
When rigging –
section 1
When rigging the 10 m (33 ft) or 17 m (56 ft) swing-away lattice, you must
swing section 1 in front of the main boom head.
• Check that the following conditions are met:
– The connection on the right-hand side of the main boom has been
established;
à p. 3 - 49.
– The lattice extension is secured with a guide rope to the front of
section 1;
à p. 3 - 27.
– The connections have been undone which, according to the checklist
titled
Rigging the 10 m (33 ft) / 17 m (56 ft) swing-away lattice, have to be
undone for the swing-away lattice currently installed before swinging;
à p. 3 - 16, point 8. to point 13.
With hydraulically derricking swing-away lattice
• Carefully raise the lattice extension completely from the ground with the
hand-held control;
à p. 3 - 75.
– If the holder (2) on section 1 has now been completely lowered out of
the slewing axis (1), the lattice extension starts to swing.
– If the holder (2) still reaches into the slewing axis (1), you must undo
the connection in the
Front area; à p. 3 - 39.
If a helper is holding the guide rope, he can now swing the swing-away lat-
tice in front of the main boom head.
If you are alone and have attached the guide rope to the crane when secur-
ing, the swing-away lattice now only swings until the guide rope is tight.
You can now swing the swing-away lattice in front of the main boom head
with the guide rope.
H
You may have to initiate the swinging procedure by pulling the guide rope.
s
G
Risk of accidents due to the swing-away lattice swinging of its own accord
Secure the swing-away lattice always with a guide rope before swinging it.
Make sure no persons or objects are within the slewing range of the swing-
away lattice and swing out the swing-away lattice from the base always
with the guide rope.
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