Swing-away lattice
3.5 Operation with swing-away lattice
3 - 90 3 112 441 en Lattice extension operating instructions
GMK 4100/4100-L/5095
11.01.2008
3.5.3 Telescoping with rigged swing-away lattice
The telescoping of the main boom with a rigged swing-away lattice is mon-
itored by the SLI. Telescoping is only enabled if the main boom is derricked
to a certain angle and a maximum permissible load is not exceeded.
The required angle (between 70° and 78°) depends on the rigging mode of
the truck crane.
The required main boom angle and the maximum permissible load (weight
of the hook block) can be found in the
Lifting capacity tables.
If the main boom angle is too small for telescoping with the rigged swing-
away lattice, the SLI displays a corresponding error message.
The telescoping mechanism is operated in the same way as with the main
boom;
à Operating instructions GMK 4100/4100-L/5095.
S
Risk of overloading the main boom
When telescoping the main boom with the rigged swing-away lattice, you
may not simultaneously slew the superstructure.
This prevents the main boom from being subjected to additional side forces
and increased vibrations and becoming overloaded.
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