Scantool WSP 100T, Руководство пользователя, Страница: 15 / 33

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4.3 Direction control vise
The direction control valve is located in the top cover of
the hydraulic unit. The valve has 3 lever positions:
•
Middle position: if the lever has not been operated,
the valve will always return to this position. There is
no movement of the piston
•
Upper position: if the lever is moved upwards, the
piston of the cylinder will move to an upper
position. As long as the valve is operated, the
piston will move. When the lever is released, the
piston will stop and stay in this position
•
Lower position: if the lever is moved downwards,
the piston of the cylinder will move to a lower
position. As long as the valve is operated, the
piston will move. When the lever is released, the
piston will stop and stay in this position. If the
piston reaches it’s lowest position (end of cylinder
stroke) the pressure of the cylinder will
automatically drop to almost zero. This is to prevent
damages to the cylinder head.
Fig.13 Directional control valve
4.4 Pressure gauge
The pressure gauge is located in the head of the press. The gauge gives the pressure in
bars. For the different types of presses the max. pressure is as follows:
30T
- 221 bar
60T - 259 bar
100T - 258 bar
160T - 255 bar
200T - 243 bar
If this maximum pressure is reached, also the maximum capacity of the press is reached.
4.5 Pressure regulation valve
The pressure regulation valve is located in the top cover of
the hydraulic unit. With this valve the maximum pressure,
referring to the maximum press capacity, can be changed.
Turning the knob clockwise will increase the pressure, turning
the knob counter clockwise will decrease the pressure.
Decreasing pressure:
•
Start the hydraulic unit
•
Move the piston upwards, so it will not touch any part
(no force applied)
•
Turn the knob counter clockwise to loose pressure. Do
not remove the knob!
Fig.14 Pressure regulator