10
6. TROUBLESHOOTING
Problem Cause
Solution
Jack does not lift.
-
Release valve is open.
-
Low oil level.
-
Air in the system.
-
Load is above jack’s capacity.
-
Release and/or bypass valve
not working correctly.
-
Worn or defective packing.
-
Check that the release valve is closed by
the position of the handle. Release valve
may need cleaning.
-
Fill with suitable hydraulic oil and purge
air from the system.
-
Purge air from the system.
-
Use jack of suitable capacity.
-
Clean to remove dirt or foreign matter.
Replace hydraulic oil.
-
Replace the packing.
Jack lifts only partially.
-
Too much or not enough oil.
-
Check hydraulic oil level.
Jack lifts slowly.
-
Pump not working correctly.
-
Leaking seals.
-
Check the pump.
-
Replace seals.
Jack lifts load but
doesn’t hold it.
-
Cylinder packing is leaking.
-
Release or bypass valve not
working correctly.
-
Air in the system.
-
Replace the packing.
-
Inspect valves and replace if necessary.
-
Purge air from the system.
Jack leaks oil.
-
Worn or damaged seals.
-
Replace seals.
Lifting arm (ram) will
not lower.
-
Release valve is closed.
-
Open the release valve by pulling on and
turning the handle clockwise. It may be
necessary to clean the release valve.
Lifting arm (ram) low-
ers slowly.
-
Cylinder damaged internally.
-
Return spring(s) is damaged.
-
Link section is binding.
-
Contact an authorized service center.
-
Replace return spring(s).
-
Lubricate link section.
7. INSTRUCTIONS FOR THE JACK STANDS
Safety instructions and warnings
-
Read and understand all warnings and instructions before use.
-
Do not overload the jack stands.
-
Always use jack stands on level, solid ground. Never use on slope, inclined, angled or soft surfaces.
-
Always use jack stands in pairs, on the same axle and at the same height. Jack stands are not to be used
to simultaneously support both ends or one side of a vehicle.
-
Inspect jack stands before each use.
-
Support the vehicle only on areas specified by the vehicle manufacturer.
-
Make sure the load and jack stands are stable before getting under the vehicle.
-
Center the load on the saddle.
-
No alterations shall be made to the jack stands.
-
Failure to follow these warnings or instructions may result in personal injury and/or property damage.
Specifications
Max. capacity
3 tons
Min. height
272 mm
Max. height
397 mm
Operation
1. Inspect the jack stands before each use. Do not use if bent, broken or cracked components are noted.
2. Put the jack stands on hard level ground.
