Globaljig KOALA, User Manual

Page: 13 / 57

GLOBALJIG INTERNATIONAL S.r.l.
13
A special electric limit switch acts upon the movement of the lifting arms and deactivates the hydraulic
control unit when the platform’s maximum height has been reached. In addition to the previously described
safety blocking system, the upper frame of the lift is equipped with two brackets, or support feet, with a
special blocking/releasing system (fig. 3.3).
When the upper frame is raised off the ground, the bracket rotates into the position illustrated in the
diagram. These brackets, or support feet, serve two purposes (platform lowering):
-
safety, for protection against the crushing of the lower limbs.
- operational, for the insertion and fastening of the towing arm at an optimal height.
In order to command the complete descent of the lift, the
operator must intervene upon the bracket by raising the
lift a few centimetres and rotating the two brackets
towards the internal portion of the lift until they are in a
horizontal position. Finally, the brackets must be pushed
towards the outside of the lift until the pin can be inserted
in the appropriate slot to lock the bracket in its horizontal
position.
This system is, however, automatically activated each
time the LP reaches the ground.
Safety engaged Safety disengaged
Fig. 3.3
If a vehicle is present upon the lift, the operator must disarm the brackets before beginning the descent; in
this case, the danger of crushing the lower limbs beneath the upper frame is not present as the vehicle
itself protrudes from each side of the frame.
The upper frame is made up of rectangular cross-section steel profiles and is appropriately shaped to
facilitate the installation of the various accessories (vehicle support brackets and towing arm). The
installation operations must be performed by the user, following the indications provided in chapter 4 of this
manual; the usage procedures are described in chapter 5.
The towing arm is equipped with a hydraulic cylinder, controlled by a pneumo-hydraulic pump, that allows
for the vehicle to be towed by means of a chain and hook (13, fig. 3.1). The chain is also equipped with a
safety cable in order to prevent personal injury in the event that any of the links should break.
LEGEND
1 Support foot
2 Pin
3 Fastening support with lock/release system