16
Maintenance, repair and inspection
Adding hydraulic oil
– Position the car jack vertically.
– Check that the car jack is completely lowered. If necessary,
lower it as far as it will go.
– Remove the filling plug from the housing (filling opening).
– Fill the cylinder with high-quality hydraulic oil using a suitable
filling funnel up to the lower edge of the filling opening. Vent
the cylinder as described in the "Venting" section.
– Replace the filling plug in the housing.
– Make sure that no oil spills or leaks.
Take it up with absorbent paper and dispose of it in an
environmentally friendly manner.
Lubrication
Regularly lubricate the moving parts and the thread of the
extension screw for a safe operation of the car jack.
Venting
Over time, air bubbles can penetrate the car jack's hydraulic
system and interfere with its function.
If the car jack only lowers sluggishly, it must be vented. To do this,
remove the filling plug, open the drain valve and then quickly
move the pump lever up and down several times to vent the oil.
Reinsert the filling plug and close the venting valve.
The car jack should then work normally again.
If necessary, repeat this procedure.
