(!) ATTENTION (!)
It is recommend to release the crane controls (levers of the control conso-
le in neutral position) before activating or deactivating the XP/CR device,
since the variation of speed is considerable and immediate; carefully ope-
rate the controls.
Refer to paragraph 14 of the Use and Maintenance manual for details on
"Controls to operate the crane" .
Refer to paragraph 16 of the Use and Maintenance manual for details on "Lifting
moment limiting device".
Activation of the XP/CR device on cranes with free rotation or with rotation
limiting device will produce the following:
- an increase in the crane loading capacity
- a reduction in the rotation speed without increasing the torque
- a reduction in the lifting and lowering speed of the inner boom, of the
outer arm and of the jib boom (if fitted)
- allows normal speed of boom sections, bucket and rotator.
- allows normal speed and lifting capacity of the winch.
Activation of the device on cranes with lifting moment limiting device for
two working sectors will produce the following:
- in the "stable" zone working area, the same effects as with crane with free
rotation
- in the "unstable" zone working area, a reduction in the speed without
increase in the loading capacity.
Activation of the XP/CR device when 90% of the rated capacity has been
reached, will produce the following:
- the yellow light on the "led" band signalling that 90% of the rated capacity
has been reached, goes off.
- allowing the manoeuvres that increase the lifting moment, you then have
the repeat of the yellow "led" band and red "led" band of the warning
lights
Activation of the XP/CR device after the lifting moment limiting device
block, will produce the following:
A) The block continues
- the crane must be reset
B) The red "led" band of the warning light switches off and the yellow "led"
band of the warning light usually comes on.
- the crane controls are enabled. Allowing the manoeuvres that
increase the lifting moment you get the yellow and red warning
lights again.
16.9.1
XP DEVICE
GR4_5 - EVOLUTION
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