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WARNING
DO NOT handle pressurized hoses. Escaping oil under
pressure can penetrate the skin, causing serious injury. If oil
is injected under the skin, see a doctor immediately.
MAINTENANCE
Use dust caps on couplers when cylinders are disconnected to prevent dirt from entering the system.
Keep parts clean.
Inspect all components for damage or wear before and after use.
TROUBLESHOOTING
The following information is intended as an aid in determining if a problem exists. For repair service,
contact the Authorized Enerpac Service Center in your area.
WARNING
DO NOT DISASSEMBLE THE CYLINDER. The stop ring is spring loaded and could cause
serious personal injury if the cylinder is not disassembled properly.
Problem
Possible Cause
Solution
Cylinder does not retract,
retracts slowly, or retracts in
spurts.
Oil level in pump reservoir is low.
Add oil according to the instructions supplied
with the pump.
Pump release valve open.
Close pump release valve.
Loose hydraulic coupler.
Check that all couplers are fully tightened.
Load is too heavy.
Do not attempt to lift more than rated tonnage.
Air trapped in system.
Remove air according to the instructions on
page 3.
Cylinder plunger binding.
Check for damage to cylinder.
Have cylinder serviced by a qualified hydraulic
technician.
Cylinder retracts, but does not
hold pressure.
Leaking connection.
Check that all connections are tight and leak
free.
Leaking cylinder seals.
Locate leak(s) and have equipment serviced by
a qualified hydraulic technician.
Internal leakage in pump.
Have pump serviced by a qualified hydraulic
technician.
Cylinder does not
advance, advances part
way, or advances more
slowly than normal.
Pump release valve closed.
Open pump release valve.
Pump reservoir is over-filled.
Drain oil level to full mark.
See pump instructions for adding oil.
Loose hydraulic coupler.
Check that all couplers are fully tightened.
Air trapped in system.
Remove air according to the instructions on
page 3.
Hose I.D. too narrow.
Use larger diameter hydraulic hose.
Cylinder retraction spring broken
or other cylinder damage.
Have cylinder serviced by a qualified hydraulic
technician.
