Enerpac BP1 Series, Instruction Sheet

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10
Troubleshooting Chart
Problem Possible Cause Action
4. Pump pulses and/or stops
during prolonged or heavy
operation. Current draw too high. Immediately release the trigger to prevent
battery from shutting-off . Allow time for battery
pack to cool before restarting pump.
Note: If battery pack shuts off , place pack on
charger to reset.
5. Cylinder will not advance or
retract. No venting. Loosen the vent/fi ll plug to provide venting
during pump operation.
Oil level low. Fill reservoir to proper level.
Oil Intake screen clogged. Clean intake screens on piston blocks.
Control valve in wrong position. Shift valve to the extend (pressure) position.
Internal leakage in control valve. Have control valve inspected and repaired by
Authorized Enerpac Service Center.
6. Cylinder advances and
retracts erratically. Air in the system. Remove air from the system by extending
and retracting the cylinder until operation is
smooth. Refer to Section 6.5.
No venting. Loosen the vent/fi ll plug to provide venting
during pump operation.
External hydraulic leak. Tighten leaky connections. Replace any
damaged hoses and fi ttings.
Internal leakage in control valve. Have control valve inspected and repaired by
Authorized Enerpac Service Center.
Internal damage to pump. Have pump inspected and repaired by
Authorized Enerpac Service Center.
7. Low fl uid output. By-pass valve malfunction. Have pump inspected and repaired by
Authorized Enerpac Service Center.
Oil intake screens clogged with debris. Inspect intake screens on piston blocks. Flush
all components of contamination. Replace
damaged components.
Internal damage to pump. Have pump inspected and repaired by
Authorized Enerpac Service Center.
8. Noisy pump operation. Piston block piston sticking. Have pump inspected and repaired by
Authorized Enerpac Service Center.
(Continued)