10
M1.3.CATM.NLFREN 30112018
EN
TOOLS
6 Trouble shooting
6.1 System air purge
1. Turn the release valve counterclockwise one full turn to open.
2. Pump the handle eight full strokes.
3. Turn the release valve clockwise to close it.
4. Pump the handle until the ram reaches the maximum height and continue to pump several times to remove trapped air in
the ram.
5.
Carefully and slowly pinch the oil fill plug to release the trapped air.
6. Turn the release valve counterclockwise one full turn and lower the ram to the lowest position. Use force if necessary.
7. Turn the release valve clockwise to the closed position and check for proper pump action. It may be necessary to perform
the above steps more than once to assure air is evacuated totally.
6.2 Table
Jack will not
lift the load
Jack will not
hold the load
Jack will not
lower
Poor jack
lifting
Will not lift to
full extension
Causes and solutions
X
X
X
The release valve is not completely
closed.
> Turn handle clockwise.
X
Weight capacity is exceeded.
> Use a jack with higher capacity
X
X
Air in the hydraulics.
> Purge air from the system.
X
X
X
X
Low oil level.
> Add oil as required.
X
Oil reservoir is overfilled.
> Drain excessive oil.
> Lubricate moving parts.
X
Jack is binding or foreign obstruction.
> Check and unblock.
X
X
X
Power unit malfunctioning.
> Replace the power unit.
Safe operation temperature is between 4 °C and 41 °C.
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