LPKF MultiPress S, Operating Manual

Page: 66 / 76

Care and Maintenance
64 MultiPress S Operating manual 3.0 Rev: 3.6.2009
8.3.4 Maintaining the hand pump
For the first time, the oil should be changed after six months and then
once a year. For the oil change procedure and the use of the correct
hydraulic oil, contact the LPKF Support.
Topping up with hydraulic oil
› Make sure that the manometer shows 0 bar/psi.
It may be necessary to let down the pressure by rotating the
handwheel on the pump counter clockwise.
› To close the pressure relief valve, rotate the handwheel clockwise as
far as it will go.
› Unscrew the spigot nut of the hydraulic hose at the connecting pipe
of the hand pump and pull off the hydraulic hose.
› Remove the screw cap of the oil tank.
› To drain the oil from the hand pump:
– By tilting the device, pour the oil into a oil catchment tray or
container.
– To meet environmental standards, fill the used oil into a container
adequate for disposal.
› Fill the oil tank with an approved type of oil up to about 2.0-2.5 cm
below the top tank rim. (see chapter 8.3.1‚ "Approved hydraulic oils",
on page 62)
› Open the pressure relief valve and actuate the pump lever several
times, to ventilate the oil tank.
› After ventilation, check the oil level again.
› Screw on the oil tank cap and tighten it by hand.
The hand pump can be installed again and put into operation (see
chapter 3‚ "Installation/Putting into operation", on page 21).