Palazzani
Palazzani Industrie spa
OM 386 pag 21 Cap 3
3.16 LOAD LIMITING DEVICE
The machine is equipped with and load limiting device in the cage.
This device avoids the overcoming of mominal capacity.
If this would happen it will cause the stop of all manoeuvres and the switching on
of an acustic and luminous alarm on the cage (pos. 10 Fig. 3.7).
To re-start all mouvements, take off the excess of load, wrongly loaded.
In case of accidental bump under a moulding or in branches, it is possible to
activate the emergency operations to move tha machine like the instructions of
chapter 5.
3.17 CAGE SELF-LEVELLING AND ROTATION
Aerial cage has two movements: rotation on horizontal position to grant the
constant
levelling with the proper ground and rotation right-left in respect to the
vertical axle.
The first movement is automatically and consisting of an electronic pendulum
acting on a proportional electro-distributor valve that opens the oil flow from main
system to the hydraulic motor mounted on the boom top; the complete system is
activated by acting on the boom or jib movement leveres, situated on both
manoeuvre sites, and this excludes the sudden and unexpected movements of the
cage.
The second movement is activated by switch on the control panel. (Fig. 3.7 pos. 5)
For obtaining a complete rotation, keep the jib horizontal to avoid contacts
between the cage and the boom; remember to return to the orthogonal position to
the boom before lowering to rest.
The cage is equipped with an electronic device which activates with two
main articulated booms lifting and lowering movements.
To maintain the cage horizontal, if there’s no a defeat, act the lever during the jib
manoeuvres softly; if the cage loses horizontal position more than 5° all boom
movements stop so that the system has time to level the cage.
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