Maintenance; Periodic Service - Little Giant UPSP-5 Owner's Manual

Priming and Starting the Pump
1. The pump should be located no more than 15' away from the water source. Remove the prime
plug (marked "PRIME") and fill the pump body with water. Tighten the plug.
2. Plug the power cord into an electrical outlet. To reduce the risk of electric shock, be certain it
is connected only to a properly grounded grounding-type receptacle.
IMPORTANT: Check the pump label for proper voltage required. Do not connect to voltage
other than that shown.
IMPORTANT: Minimum wire size for portable cord from power supply to motor is as follows:
Up to 10 ft. (3 m) – 18 AWG; 10 to 50 ft. (3-15 m) - 16 AWG; 50 to 100 ft. (15-30 m) - 14 AWG.
3. The pump typically takes several minutes to prime. The priming time depends on the suction
line length and the vertical distance between the pump and the water source. If the pump won't prime,
refer to the Troubleshooting guide.
4. Unplug the unit as soon as the pump stops pumping water or the suction sound changes to prevent the
pump from running dry. Do not let the unit run dry (without liquid). The seal may be damaged and the
motor may fail if the pump is allowed to run dry.

MAINTENANCE

Periodic Service

Inspect motor brushes after every 100 hours of operation. If brushes are less than ¼" long they should be
replaced. If re-installing old motor brushes, be sure to mark the location from which each came. Replace
used brushes in original orientation as well.
One additional set of replacement motor brushes are included with the pump. To order additional motor
brushes, refer to "Replacement Parts" on page
where this pump was purchased, please call our Technical Support for ordering information.
Replace motor brushes as follows:
1. Disconnect electrical cord from power supply.
2. Allow the motor to cool for 30 minutes before servicing.
3. Remove motor brush caps with screwdriver.
4. Remove used motor brush assembly.
5. Insert new motor brush assembly.
6. Replace motor brush caps.
Always check the power cord and electric receptacle for damage or corrosion before each use. The power
cord on these units cannot be replaced. If damaged, replace the pump.
Cleaning Impeller and Volute
After unplugging the pump from electric power, disconnect the discharge hoses from the pump.
1. Remove the screws that hold the motor assembly to the volute.
2. Separate the motor from the volute.
3. The impeller remains with the motor assembly. Clean the impeller and the volute passage. Do not use
strong solvents on the impeller.
4. Be sure the impeller turns freely after cleaning.
5. Attach the motor assembly to the volute, making sure the seal is properly aligned.
4. If replacement parts are not supplied at the retail outlet
MAINTENANCE
Priming and Starting the Pump
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