5
PROBLEM
POSSIBLE CAUSE
Pump will not start.
Air turned off or line blocked.
Motor stalls under load.
Low air pressure.*
Inlet filter is plugged, insufficient air flow.
Pump fails to build pressure.
External leak in system.
Internal leak in pump.
Internal leak in system component.
Low oil level.
Pump builds less than full pressure.
Low air pressure.*
Internal relief valve set low.
External system leak.
Internal leak in system component.
Pump builds pressure, but load does not move.
Load greater than cylinder capacity at full pressure.
Flow to cylinder blocked.
Cylinder drifts back on its own.
External system leak.
Internal leak in system component.
Cylinder will not return (single-acting type)
Return flow or coupler restricted/blocked.
No load on a “load return” cylinder.
Return spring broken on cylinder.
Release valve malfunction.
Cylinder will not return (double-acting type)
Return flow or coupler restricted/blocked.
Valve malfunction.
Low oil flow rate.
Reservoir not vented.
Inadequate air supply.
Dirty air filter.
Clogged inlet filter.
* 85 psi (5,86 bar) air pressure required to obtain 5,000 psi (350 bar).
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
Содержание Turbo II 3000 Series
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