Troubleshooting - Enerpac PATG3102NB Manual De Instrucciones

15.0 TROUBLESHOOTING

Only qualified hydraulic technicians should service the pump or
system components. A system failure may or may not be the result
of a pump malfunction. To determine the cause of the problem, the
complete system must be included in any diagnostic procedure.
The following information is intended to be used only as an aid in
determining if a problem exists. DO NOT disassemble the pump.
For repair service, contact the Authorized ENERPAC Service
Center in your area
PROBLEM
Pump will not start.
Motor stalls under load.
Pump fails to build pressure.
Pump builds less than full pressure.
Pump builds pressure, but load does not move.
Cylinder drifts back on its own.
Cylinder will not return (single-acting type)
Cylinder will not return (double-acting type)
Low oil flow rate.
* 85 psi (5,86 bar) air pressure required to obtain 5,000 psi (350 bar).
POSSIBLE CAUSE
Air turned off or line blocked.
Low air pressure.*
Inlet filter is plugged, insufficient air flow.
External leak in system.
Internal leak in pump.
Internal leak in system component.
Low oil level.
Low air pressure.*
Internal relief valve set low.
External system leak.
Internal leak in system component.
Load greater than cylinder capacity at full pressure.
Flow to cylinder blocked.
External system leak.
Internal leak in system component.
Return flow or coupler restricted/blocked.
No load on a "load return" cylinder.
Return spring broken on cylinder.
Release valve malfunction.
Return flow or coupler restricted/blocked.
Valve malfunction.
Reservoir not vented.
Inadequate air supply.
Dirty air filter.
Clogged inlet filter.
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