User manual C4 – C6
25
Warning for radio remote
control.
On superstructure electrical
cabinet
5.6. Signal column
A signal column is fitted on the compact crane. The meaning of the colours is shown below. When
bypassed by means of the key switch, the signal column produces an audible signal to warn
everyone in the vicinity.
Figure 9: Signal colum
5.7. LML
The following describes how the crane is protected against overload by the LML (Load Moment
Limiter).
When the crane is standing on the outriggers and the ignition switch is put back in position 2 (crane
operation) the crane knows exactly how it is standing on the outriggers. Based on this, the crane
knows what it can lift where.
When a load is hanging from the crane and the crane's outreach is increased, if the crane enters the
range in which it is no longer allowed to lift the load, it will automatically stop increasing the
outreach. The red lamp in the stack light will also light up and an acoustic signal will sound.
Now the crane can only be operated in the direction in which the load comes back into the safe
range. That is, the direction in which the outreach is reduced.
The following functions can be blocked by the LML: Extension of main mast and fly jib, winching,
raising the main mast and fly jib, rotating the superstructure, retracting the ballast.
Bypass without protection
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