9
PROBLEM
CAUSE
SOLUTION
1. The piston does not lift.
Release Valve is opened.
Close release valve.
Air in hydraulic circuit.
Purge the circuit.
Low oil level.
Refill with required volume.
Dirt in hydraulic circuit.
Clean hydraulic circuit.
Non-correct hydraulic
connection.
Assure hydraulic connection is correct.
Deformed piston.
Contact your distributor.
2. Piston does not lift totally.
Low oil level.
Refill.
Deformed piston.
Contact your distributor.
3. Piston lifts very slowly.
Air in the hydraulic circuit.
Purge hydraulic circuit.
Dirt in hydraulic circuit.
Clean hydraulic circuit.
4. Cylinder looses pressure while holding
the load.
Air in hydraulic circuit.
Purge the hydraulic circuit.
Dirt in hydraulic circuit.
Clean hydraulic circuit.
Worn or damaged seals.
Contact your distributor.
5. Oil leakage.
Worn or damaged seals.
Contact your distributor.
Non correct hydraulic
connection.
Assure hydraulic connection is correct.
6. Piston does not retract fully.
Excess of oil.
Remove excess of oil.
Deformed piston.
Contact your distributor.
Dirt in hydraulic circuit.
Clean hydraulic circuit.
Damaged return spring.
Contact your distributor.
Release valve closed.
Open the release valve.
GUARANTEE
Type D = 2 years. See the general conditions in the FACOM catalogue or the FACOM price list.
Subject to compliance with all of the above instructions.
NU-W.415BA W.420 W.430 W.450_0417.indd 9
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