Troubleshooting Chart - Enerpac WU Serie Hoja De Instrucciones

Problem
Pump will not start.
Cylinder will not advance or retract.
Cylinder advances and retracts
erratically.
Pump fails to maintain pressure.
Low fluid output.

TROUBLESHOOTING CHART

Possible Cause
No power.
Wrong voltage.
Fluid level low.
Intake screen clogged.
Valve in wrong position.
Valve failure.
Air in the system.
External leak in system.
Internal hydraulic leak.
External hydraulic leak.
Internal hydraulic leak.
Fluid level low.
Pump component parts are leaking.
By-pass valve malfunction.
Fluid intake screens on piston blocks
may be clogged with debris.
6
Solution
Check electrical power source.
Check voltage specifications. See pump data
plate. Also refer to Section 3.0.
Fill reservoir to proper level.
Clean or replace intake screen.
Shift valve to the pressure position.
Have pump repaired by a qualified hydraulic
technician.
Remove air from the system by opening and
closing the tool until operation is smooth.
Tighten leaky connections. Replace any
damaged hoses and fittings.
Have pump repaired by a qualified hydraulic
technician.
Tighten leaky connections. Replace any
damaged hoses or fittings.
Have pump repaired by a qualified hydraulic
technician.
Fill reservoir to the proper level.
Test to isolate leaks.
Have pump repaired by a qualified hydraulic
technician.
Inspect intake screens. Flush all components
of contamination. Replace any damaged
components.