Enerpac E-Pulse E Series, Instruction Sheet

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Table 1 - Troubleshooting Guide
Symptom Possible Cause Action
1. Pump will not start. a. No power. Be sure that the pump AC power cord is connected to the
electrical outlet.
b. Pump fault triggered. Refer to Table 2, Pump Fault Codes, for additional
information.
2. Pump stops under load. a. Pump fault triggered. Refer to Table 2, Pump Fault Codes, for additional
information.
b. Pump jammed due to obstruction. Contact Enerpac Authorized Service Center.
c. Pump bypass valve out of
adjustment or malfunctioning.
Contact Enerpac Authorized Service Center.
d. Internal damage to pump and/or
motor.
Contact Enerpac Authorized Service Center.
3. Pump fails to build
pressure or builds less
than full pressure.
a. Low oil level. Add oil to reservoir as required. Refer to Section 11.3
Follow priming procedure in Section 11.5 if pump reservoir
was emptied during operation or while pump was being
serviced.
b. Relief valve open or set too low. Raise relief valve pressure setting. Refer to Section 9.0.
c. Oil needs changing. Completely drain and refill reservoir per instructions in
Section 11.4.
NOTICE
Use only Enerpac HF hydraulic oil. Use of other oils
may result in damage to pump components and will void
the Enerpac product warranty.
d. External system leak. Repair or replace components as required.
e. Pump oil intake suction filter is
dirty.
Contact Enerpac Authorized Service Center.
f. Pump bypass valve out of
adjustment or malfunctioning.
Contact Enerpac Authorized Service Center.
g. Pump Internal leakage. Contact Enerpac Authorized Service Center.
h. Pump seals worn or damaged. Contact Enerpac Authorized Service Center.
i. Internal damage to pump and/or
motor.
Contact Enerpac Authorized Service Center.
12.0 CLEANING AND INSPECTION
• Periodically clean the cooling fins on the pump side surfaces
to remove any accumulated dust or dirt.
• Remove any dust or dirt from the pump front and rear covers
and the pump top and bottom surfaces. Be sure that all four air
vents are unobstructed.
• Periodically wipe the air breather/filter surface with a clean rag
to remove any loose dirt or oil sediment. The air breather/filter
must remain unobstructed to allow proper reservoir venting.
• Be sure that pendant and controls are free of dust or dirt.
• To prevent contamination, always remove any dirt from around
the oil drain/fill plug before removing it. Wipe the drain/fill plug
with a clean rag before reinstalling it.
• Check for loose, missing or damaged parts. Make repairs as
required before returning the pump to use.
13.0 STORAGE
Store the pump in a clean, dry and secure location.
To prevent possible damage to pump components, storage area
ambient temperature must not be less than -22°F [-30°C] and
must not 149°F [+ 65°C].
14.0 TROUBLESHOOTING
The information in the Troubleshooting Guide (Table 1) is intended
as an aid to help diagnose and correct various possible problems
that may occur.
For repair service, contact your nearest Enerpac Authorized
Service Center. Only an Enerpac Authorized Service Center
should be permitted to service the pump and its components.
WARNING
Failure to observe and comply with the following precautions
could result in death or serious personal injury. Property
damage could also occur.
• Never tighten or loosen hydraulic fittings while the pump
hydraulic system or connected components are pressurized.
Escaping oil under pressure can penetrate the skin, causing
serious personal injury.
• Keep hands, fingers and other body parts clear of pinch
points and moving parts when observing operation during
troubleshooting.
• To prevent accidental start-up of pump during servicing,
always disconnect the pump from electrical power sources
before performing any maintenance or repair procedures.
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