
PAGE 12
4.1 Hydraulic unit
4.1.1 On / Off switch
The on / off switch is situated at the front of the hydraulic tank.
· Pushing the green button will start the motor of the
hydraulic unit.
· Pushing the red button will stop the motor of the hydraulic
unit immediately. All parts will stay in the position where
they are at that moment
Fig. 8 On / Off switch
4.1.3 Direction control valve
The direction control valve / joystick is located in the top cover of the hydraulic unit.
The valve has 3 lever positions:
Fig. 10 Directional control valve
Middle position: if the lever has not been operated, the valve
will always return to this position. There is no movement of the
press ram.
Upper position: if the lever is positioned upwards, the press ram
of the cylinder will move upwards. As long as the valve is
operated, the press ram will move. When the lever is released,
the press ram will stop and stay in this position.
Lower position: if the lever is positioned downwards, the press
ram of the cylinder will move downwards. As long as the valve
is operated, the press ram will move. When the lever is
released, the press ram will stop and stay in this position. If
the press ram reaches its lowest position (end of the cylinder
stroke) the pressure of the cylinder will automatically drop to
almost zero, to prevent damages to the press ram head.
4.1.2 Emergency button
The emergency button is located on top of the on / off switch.
Pushing the red emergency button in case of emergency will
stop the electric motor of the hydraulic unit immediately. All other
parts will stay in the same position they are at that moment.
To restart the hydraulic unit again:
· Make sure that the dangerous situation is solved.
· Reset the red emergency button by turning it counter
clockwise, the button will pop-up again.
· Push the green button from the on / off switch again.
Fig. 9 Emergency switch
WARNING: NEVER turn off the machine
when pressing force is being applied to the
work piece. Unexpected force expansion
when restarting, can damage the machine
or injure the operator.
Summary of Contents for PRESSPRO 176MT
Page 20: ...PAGE 20...