10
GB
O R I G I N A L I N S T R U C T I O N S
Removing defects
The jack is
lowered under
load
The jack does
not raise the
load
The jack does
not raise the
load to full
height
The pump
springs back
during lifting
The lift is not
fully lowered
Oil leaks from
beneath the
plug
X
X
X
Oil may be missing from the jack.
Replenish the oil.
X
X
X
X
Air lock in hydraulic system.
Purge air from hydraulic system
X
There may be too much oil in the jack.
Drain off any excess oil
X
X
The valves do not close completely.
Perform several lifting and lowering cycles without
load.
X
Return spring damaged.
Moving parts not lubricated.
Deformed pump drive components.
X
X
Release valve not fully closed.
Close the release valve.
Disposing worn jack components
Dispose of the used oil and/or grease at a professional waste disposal facility.
The steel parts used do not pose any risk to the environment and must be returned to a ferrous metal waste treatment plant.