6
TROUBLESHOOTING CHART
Problem
Possible Cause
Solution
Pump will not start.
No power.
Check electrical power source.
Wrong voltage.
Check voltage specifications. See pump data
plate. Also refer to Section 3.0.
Cylinder will not advance or retract.
Fluid level low.
Fill reservoir to proper level.
Intake screen clogged.
Clean or replace intake screen.
Valve in wrong position.
Shift valve to the pressure position.
Valve failure.
Have pump repaired by a qualified hydraulic
technician.
Cylinder advances and retracts
erratically.
Air in the system.
Remove air from the system by opening and
closing the tool until operation is smooth.
External leak in system.
Tighten leaky connections. Replace any
damaged hoses and fittings.
Internal hydraulic leak.
Have pump repaired by a qualified hydraulic
technician.
Pump fails to maintain pressure.
External hydraulic leak.
Tighten leaky connections. Replace any
damaged hoses or fittings.
Internal hydraulic leak.
Have pump repaired by a qualified hydraulic
technician.
Low fluid output.
Fluid level low.
Fill reservoir to the proper level.
Pump component parts are leaking.
Test to isolate leaks.
By-pass valve malfunction.
Have pump repaired by a qualified hydraulic
technician.
Fluid intake screens on piston blocks
may be clogged with debris.
Inspect intake screens. Flush all components
of contamination. Replace any damaged
components.
