PROBLEM
1. The piston does not lift.
2. Piston does not lift totally.
3. Piston lifts very slowly.
4. Cylinder looses pressure while holding
the load.
5. Oil leakage.
6. Piston does not retract fully.
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
CAUSE
Release Valve is opened.
Air in hydraulic circuit.
Low oil level.
Dirt in hydraulic circuit.
Non-correct hydraulic
connection.
Deformed piston.
Low oil level.
Deformed piston.
Air in the hydraulic circuit.
Dirt in hydraulic circuit.
Air in hydraulic circuit.
Dirt in hydraulic circuit.
Worn or damaged seals.
Worn or damaged seals.
Non correct hydraulic
connection.
Excess of oil.
Deformed piston.
Dirt in hydraulic circuit.
Damaged return spring.
Release valve closed.
SOLUTION
Close release valve.
Purge the circuit.
Refill with required volume.
Clean hydraulic circuit.
Assure hydraulic connection is correct.
Contact your distributor.
Refill.
Contact your distributor.
Purge hydraulic circuit.
Clean hydraulic circuit.
Purge the hydraulic circuit.
Clean hydraulic circuit.
Contact your distributor.
Contact your distributor.
Assure hydraulic connection is correct.
Remove excess of oil.
Contact your distributor.
Clean hydraulic circuit.
Contact your distributor.
Open the release valve.
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