Enerpac E-Pulse E Series, Инструкция

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Table 1 - Troubleshooting Guide (continued)
Symptom Possible Cause Action
4. Low fluid output. a. AC line voltage too low. Low AC line voltage may result in lower motor speeds and
reduced hydraulic output.
b. External or internal system leak. Repair or replace components as required.
c. Pump needs priming. Add oil to reservoir as required. Refer to Section 11.2.
Follow priming procedure in Section 11.5 if pump reservoir
was emptied during operation or while pump was being
serviced.
d. Bypass valve malfunction. Contact Enerpac Authorized Service Center.
e. Pump oil intake suction filter is
dirty.
Contact Enerpac Authorized Service Center.
f. Pump internal leakage. Contact Enerpac Authorized Service Center.
g. Pump seals worn or damaged Contact Enerpac Authorized Service Center.
h. Internal damage to pump and/or
motor.
Contact Enerpac Authorized Service Center.
5. Torque wrench will not
advance or retract.
a. Low oil level. Add oil until reservoir is completely full.
b. Relief valve setting is too low. Increase relief valve setting. Refer to Section 9.1.
c. Pump needs priming. Follow priming procedure in Section 11.5 if pump reservoir
was emptied during operation or while pump was being
serviced.
d. Pump oil intake suction filter is
dirty.
Contact Enerpac Authorized Service Center.
e. Internal damage to valve. Contact Enerpac Authorized Service Center.
6. Torque wrench advances
and retracts erratically.
a. Air in the system. Advance and retract the torque wrench until operation is
smooth. Refer to Section 7.3.
b. External hydraulic leak. Tighten connections. Replace damaged components.
c. Internal leakage in valve. Contact Enerpac Authorized Service Center.
d. Internal damage to valve. Contact Enerpac Authorized Service Center.
e. Internal damage to pump. Contact Enerpac Authorized Service Center.
7. Noisy pump operation. a. Pump needs priming. Refer to Section 11.5 for priming procedure.
b. High oil flow over relief valve. The user-adjustable relief valve may create a high pitched
noise when relieving high oil flow.
c. Relief pressure setting too close
to pump bypass valve setting.
Avoid setting relief valve at the pump bypass setting of
3,000 psi [207 bar] whenever possible.
d. Damaged and/or loose
components inside pump,
vibrating and/or making contact.
Contact Enerpac Authorized Service Center.
e. Pump elements worn or
damaged.
Contact Enerpac Authorized Service Center.
f. Motor worn or damaged. Contact Enerpac Authorized Service Center.
8. Pump runs hot. a. Low oil level. Check oil level with pump stopped and torque wrench
retracted. Add oil if low. Refer to Section 11.3.
b. Flow is restricted or blocked. Check hydraulic couplers for full engagement. Check
hoses for blockage or kinks.
c. Oil flowing over the relief valve for
long periods of time.
Reduce the amount of motor running time while oil is
flowing over the relief valve.
d. Pump air vents obstructed and/
or pump cooling fins covered with
dirt.
Clear any obstructions from pump cooling vents. Remove
any dirt or dust from pump cooling fins.
e. Low voltage. Check AC line voltage. Pump can operate during a limited
low voltage condition but overheating may result.
(continued on next page)