Stanley 76501-02000, Manual

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Troubleshooting Guide (Continued)
Symptoms: Probable Causes: Check and/or inspect: Corrective Action:
6. Pump fails to
build pressure or
builds less than full
pressure.
a. Low oil level. a. Check oil level in sight glass. Is oil level low? a. Yes: Add oil as required. Refer to Enerpac Instruction
Sheet L2906 for instructions.
b. Relief valve set too low.
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b. Is the relief valve set too low for the application? b. Yes: Raise the relief valve setting. Refer to Enerpac
Instruction Sheet L2906 for adjustment procedure.
c. External system leak. c. Is an external leak visible? c. Yes: Repair leak(s) as required.
d. Torque wrench malfunctioning. d. Does the torque wrench appear to be operating
properly?
d. No: Repair torque wrench in accordance with
manufacturer's instructions.
e. Control valve out of adjustment or damaged.
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e. Is the control valve operating properly? e. No: Repair or replace control valve. Refer to Enerpac
Repair Parts Sheet L2908.
f. Pump element worn or damaged.
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f. Does the pump appear to be operating properly? f. No: Remove and inspect the pump element. Repair or
replace if necessary. Refer to Enerpac Repair Parts Sheet
L2596 for additional information.
7. Pump runs hot. a. Advance or retract fl ow restricted. a. Is a restriction in fl ow suspected? a. Yes: Check couplers for full engagement.
b. High ambient temperature. b. Is the pump running hot? b. Yes: Install a heat exchanger.
c. Heat exchanger airflow restricted (models
equipped with heat exchanger only).
c. Is heat exchanger airflow obstructed? c. Yes: Remove any dirt from heat exchanger vents. Be sure
that airflow is not obstructed by objects or walls.
d. Heat exchanger fan not operational
(models equipped with heat exchanger only).
d. Does the fan turn-on when the pump motor is on? d. No: Check heat exchanger fan motor and wiring. Repair or
replace components as required.
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It is recommended that these troubleshooting steps be performed by an Enerpac Authorized Service Center.
To find your nearest Enerpac Authorized Service Center, please visit us at www.enerpac.com .
Contact information for Enerpac worldwide locations can be found on the back page of this document.
Important: all repair procedures should be performed only by a trained and qualified repair technician.
WARNING:
Disconnect power cord from outlet before
removing pump shroud or beginning any repairs.
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