4
To maintain your warranty,
have your products inspected and repaired
by an authorised Enerpac Service Centre
www.enerpac.com
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Troubleshooting Guide
Problem
Possible Cause
Solution
Cylinder does not
advance, advances
slowly or in spurts
1. Oil level in pump reservoir is low
2. Release valve is open
3. Loose hydraulic coupler
4. Air trapped in system
5. Cylinder plunger binding.
1. Add oil to pump
2. Close pump release valve
3. Check that all couplers are fully tightened
4. Remove air according to §4.3 Air Removal
5. Check for damage to cylinder. Have cylinder
serviced by a qualified hydraulic technician.
Cylinder advances, but
does not hold pressure
1. Leaking oil connection
2. Leaking seals
3. Internal leakage in pump.
1. Check that all connections are tightened
2. Locate leak(s) and have equipment serviced by
a qualified hydraulic technician
3. Have pump serviced by a qualified hydraulic technician.
Cylinder does not
retract, retracts part way
or retracts more slowly
than normal
1. Release valve closed
2. Pump reservoir over filled
3. Loose hydraulic coupler
4. Air trapped in system
5. Cylinder retraction spring broken or other cylinder damage
6. Additional tooling on cylinder too heavy.
1. Open pump release valve
2. Drain oil level to full mark
3. Check that coupler(s) are fully tightened
4. Remove air according to §4.3 Air Removal
5. Have cylinder serviced by a qualified hydraulic technician
6. Remove tooling, check cylinder for damage.
GB
