MAN.243 Rev.5 ENG - Use and maintenance manual S28 page 59 of 138
It is forbidden to use the MEWP as a lifting
device.
Avoid contact of the aerial part with fixed
objects (buildings, etc.) or with moving
objects (vehicles, lifting equipment, etc.).
4.4.5.1 Moment limiter
Thanks to a moment limiting device (anti-
tipping device fitted as standard on these
machines), all operations bringing the
machine over the work diagram are
ineffective.
During the movements of the aerial part, reaching the
maximum performance, the moment limiter safety device
intervenes:
o when the maximum allowable outreach is almost
reached (90%), the pre-alarm indicator 6 lights up
(Picture 10).
o when the maximum allowable outreach is reached
(see the working diagram in Picture 2a), the alarm
indicator 7 lights up (Picture 10) and the machine
blocks: only the return movements of booms are
permitted to secure the machine stabilization.
4.4.5.2 Load limiter
Moreover, when the MEWP exceeds its
maximum permitted capacity (230 Kg), the
system detects the overload and stops the
work operations, warning with a continuous
acoustic signal.
During the movement of the MEWP aerial part, reaching
the maximum load selected, the load limiter safety device
activates:
o overload until 20 Kg (signaled by the lighting of
the intermittent block light 8 – Picture 10 and by
an intermittent acoustic warning): in this case,
operations remain active, even if these two
signals warn the user about the danger; the
signals will stop only removing the overload from
the basket.
o overload > 20 kg (indicated by the fix lighting of
the block light 8 – Picture 10 and by a continuous
acoustic warning): the load limiter safety device
stops all operations of the extendable structure:
the operator must unload the overload from the
basket to reuse the MEWP.
➔ The operator must remove the overload from the
basket to continue the work with the MEWP.
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