Lukas LH2 - Manual (Page 23)

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5. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
9.4 Hand pump with 4/3-way valve
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the lines of the tool or the tools to the ports “A” and ”B”.
3. Move the locking pin into the operating position.
4. Choose with the lever, which line you will pressurize.
“A” means line “A”.
The middle position is the neutral position, this means none of the connected lines will be
pressurized when you are pumping.
“B” means line “B”.
5. Supply the device with hydraulic fluid or pressurise by operating the pump lever (up and
down movements).
6. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
9.5 Hand pump with 2-way distribution valve
1. Close discharge valve on the hand pump completely (rotate clockwise).
2. Connect the lines of the tool or the tools to the ports “A” and ”B”.
3. Move the locking pin into the operating position.
4. Open the hand wheel for the line(s) which you would like to pressurize.
“A” means line “A”.
“B” means line “B”.
According to the position of the valve hand wheels, the supply with hydraulic fluid could
be dosed.
5. Supply the device with hydraulic fluid or pressurise by operating the pump lever (up and
down movements).
6. To reduce the pressure of the device, slowly open the discharge valve of the hand pump
(turn counter-clockwise). In this way, you can meter the pressure reduction precisely.
Make sure, that the discharge valve is opened completely and the tool is in basic position
before you disconnect the tool.
NOTE:
A pressure decrease is also possible by switching the lever into the opposite
moving direction. In this case the pressure decrease could not be dosed, it will
carried out very abrupt.