the ground. If a complete side of the vehicle is raised
there is a serious risk of the jack slipping sideways.
When you have completed your work, first remove
the jack stand and then lower the jack by slightly
unscrewing the lowering screw with the jacking bar.
You can control the lowering speed yourself by
opening the lowering screw to a greater or lesser
degree. The jack is equipped with an overload valve
on the side of the hydraulic pump. This valve is set at
the factory so that the maximum load cannot be
exceeded.
Do not adjust this valve or you will forfeit your rights
under the warranty if the jack suffers any damage.
Once the jack reaches its highest position, the safety
valve and an overflow device will prevent additional
pressure being exerted on the hydraulic system even
if you continue to pump with the jacking bar.
5. Maintenance
Top up the hydraulic system with only acid-free
hydraulic fluid in order to prevent damage to the
seals.
Catch old and escaping fluid in a special container
and deliver to your old oil disposal center!
You should always move the hydraulic system
(piston) to idle position (piston inserted) once the
jack is no longer needed. This will protect the
precision-machined surfaces of the piston and the
piston rod from corrosion.
Your jack will give you good service if you use only
high-grade hydraulic fluid. Never mix different types
of fluid! Never use brake fluid, alcohol, glycerin, dirty
fluid, etc.
GB
5
TROUBLESHOOTING
FAULTS
CAUSES AND REMEDIES
The load cannot be raised with the jack
1. The lowering screw has not been tightened.
- Tighten the screw clock-wise.
2. The level of fluid is too low.
- Add more fluid as described in the instructions.
The hydraulic system (piston) cannot be
3. There is air in the hydraulic system.
extended to its full height.
- Vent as described in the instructions.
Anleitung HM 22-52-82-102 31.03.2003 11:45 Uhr Seite 5
