Liberty Pumps LEH150-E Serie Manual Del Usuario página 10

5.
Operation & Repair
5-1 OPERATION
After the electrical and mechanical installations have been performed and inspected, the pump is ready for
operation. No operational procedures are required except to apply rated power to the pump. There are no
specific shutdown procedures other than disconnecting the pump from the power supply.
5-2 PERIODIC MAINTENANCE & LUBRICATION
Liberty pumps are designed for long lasting, efficient and reliable service with minimum preventive maintenance
checks. These checks are few but will add years of satisfactory service to the life of the pump. Maintenance
checks should be performed at the intervals stated. Severe operating environments will require more frequent
checks.
 Installed pumps which are idle for long periods of time should be manually operated through the control
panel once a month to lubricate the seals.
 This LEH-Series pump is permanently lubricated and cooled by 2.7 Liters (0.7 Gallons) of ISO-32 turbine
oil. Under normal operating conditions replacement oil is not required, contact Liberty for further
instruction if you believe the oil should be replaced.
5-3 POWER CORD REPLACEMENT
1. Obtain an exact replacement for your power cord and its crimp connectors from Liberty Pumps.
2. Disconnect pump from power source prior to servicing.
3. Remove the (4) fasteners from the perimeter of the cord entry plate and pull gently away from pump until
crimped male-female disconnections are visible.
4. Mark wires on pump side of crimp connectors with the color of the attached wire from the supply cable.
5. Disconnect the power cable from the pump lead wires by pulling on the base of the connecter at the crimp.
Do not pull on the wires to separate the connector. Inspect the motor leads and connectors, replace them if it
is necessary.
6. Separate the grounding conductor from the old power cord using the same process described to remove the
crimped connectors. Re-attach the grounding conductor to the new power cord by pushing the two terminals
together.
7. Reconnect the colored leads on the replacement supply cord to the appropriate labeled wire on the pump.
8. Reinstall the cord entry plate to the pump by installing and tightening the (4) fasteners around the perimeter of
the cord entry plate.
9. Reinstall the pump using the electrical and mechanical installation instructions covered in Sections 3 and 4.
5-4 OTHER REPAIRS
For repairs not outlined in this manual, please contact Liberty Pumps Technical Customer Service for further
assistance.
Before operating pump, remove any nearby debris
including loose wires and other obstructions.
Power cord replacement shall only be completed by
a licensed electrician.
create an electrical shock hazard.
©Copyright 2014 Liberty Pumps Inc. All rights reserved
Improper replacement can
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