Swing-away lattice
3.5 Operation with swing-away lattice
Lattice extension operating instructions 3 112 441 en 3 - 89
GMK 4100/4100-L/5095
11.01.2008
3.5.2 Derricking the main boom
If the following prerequisites are met, lowering into the horizontal position
with swing-away lattice and a slewing range of 360° is allowed and is mon-
itored by the SLI.
To raise and set down the main boom with rigged swing-away lattice, the
following prerequisites must be fulfilled:
– The current rigging mode with the rigged swing-away lattice is entered on
the SLI, and the corresponding SLI code is displayed according to the
Lift-
ing capacity table
.
– The current reeving type on the swing-away lattice is entered for the
hoisting gear of which the hoist rope is reeved on the swing-away lattice.
– Apart from the hook block, no loads are attached to the swing-away lat-
tice.
– The main boom is fully retracted.
The SLI only enables the raising and setting down of the main boom if the
main boom is fully retracted.
Once all of the above prerequisites have been fulfilled, the SLI automatically
switches to the rigging tables and derricking is then also enabled in the
angle range below the working range of approximately 15°.
G
Risk of accidents with overridden SLI
Do not override the SLI when lowering the boom into a horizontal position.
If the SLI is overridden, the crane operation will not be monitored and the
truck crane will overturn if you leave the permissible working range.
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