OPERATING AND MAINTENANCE HANDBOOK
Operating principles
The energy required for the machine running is supplied by 24V bat-
teries, which can be recharged thanks to a baery charging device.
Here below the main features of the electric, hydraulic and electronic
circuits are described.
Electric circuit
Two electric motors installed in the front steerable wheels supply the
energy required for the traction action.
An electric actuator installed in the steering bar supplies the energy
required for the steering action of the front wheels.
Pressing the red emergency stop push buon in the ground control
panel and in the platform control box, any function of the machine is
disconnected, except for safety indicators (pilot lights and audible
alarm).
Only by turning the key of the ground control panel in the OFF posi-
tion, machine functions are completely disconnected.
Hydraulic circuit
The electric pump supplies the hydraulic energy required for the steer-
ing movement, operated by a solenoid valve.
In case of failure a manually operated action will allow the scissors
lowering.
IT10122 - IT12122
A further electric pump supplies the hydraulic energy required for the
steering movement, operated by a hydraulic cylinder.
The proportional control machine is controlled by an electronic sys-
tem that according to the joystick movements on the platform control
panel supplies more or less energy to the electric motors and to the
electric pumps.
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