Globaljig Evolution, Руководство пользователя

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3.3 Technical description
EVOLUTION is an LB designed and built to lift motor vehicles so that body repairs
can be made.
Its structure permits rapid lifting of the vehicle and proves ideal for use side-by-
side with the more complete units: benches with jig.
Physically, the LB is composed of a lower structure, that is the base to be secured
to the ground, an upper frame and two lifting rods that cross each other like a
scissors and connect the upper and lower frames. Lifting is achieved by two
hydraulic cylinders controlled by a special electro-hydraulic control unit set in a
structure that includes the electrical panel and pneumatic solenoid valve.
The hydraulic control unit is made up of a motor that runs a hydraulic pump. The
oil is held in a special tank. The control unit also has a safety release solenoid
valve.
The safety pawl is always active and, in the event of hydraulic system failure, it
cuts in, preventing the lift from dropping.
This safety pawl is set flush in the special stops while parking to work at various
heights. The user has a two-position button available. The first click controls
descent only. If you continue pressing (to the second click) the safety pawl is
disengaged. When the button is released, the safety device is automatically
rearmed.
Upward movement of the lift arms is limited by an electric limit switch that cuts
off the hydraulic control unit when the bench nears maximum height.
The upper frame is made up of rectangular steel profiles that are suitably shaped
to facilitate installation of the various accessories.
Installation operations must be performed following the indications given in
chapter 4 of this manual. The operating procedures are given in chapter 5.
3.4 Electrical, pneumatic and hydraulic system diagrams
The LB has electric, pneumatic and hydraulic systems. The diagrams for these
systems are given in a special section of this Manual.