Harbor Freight Tools 47907 Troubleshooting, Maintenance, Problem, Cause, Solution

Models: 47907

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Troubleshooting

Troubleshooting

Problem

Cause

Solution

The pump won’t start

No power

Check connections

 

Blocked Impeller

Free the motor shaft

 

Pressure switch disconnected

Check gauge

 

Thermal Protection cut out

Allow pump to cool

 

 

 

The pump operates but it

Inlet tube not submerged

Submerge the inlet

won’t discharge water

Air in suction pipe

Check pipe and seals

 

Inlet screen clogged

Clean screen

 

Lifting height exceeded

Reduce lifting height

 

 

 

Pump has low capacity

Inlet pipe is too small

Increase pipe diameter

 

Liquid is too dirty

Clean screen frequently

 

Lift height exceeded

Reduce lift height

 

Tank’s rubber bladder under-

Inflate to 18-19 PSI

 

inflated.

 

 

 

 

Never disassemble the pump or motor as this will damage the water seals. All repairs should be performed by a qualified technician.

Maintenance

Always disconnect pump from power source before attempting any maintenance.

1.Clean the inlet screen regularly to remove accumulated debris.

2.Use pressure gauge to test pressure in Tank’s Rubber Bladder (51). Pressure should range between 18 and 19 PSI.

3.Wipe the pump clean with a soft, damp cloth with soapy water. Do not use solvents. Do not get the electrical components wet.

4.If storing the pump for a long time, store it in a dry location, and apply a light layer of oil to the metal parts prior to storage, to inhibit rust.

5.To drain the pump, disconnect the water lines and turn it upside down.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

REV 06i, REV 07g

SKU 47907

For technical questions, please call 1-800-444-3353.

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Harbor Freight Tools 47907 Troubleshooting, Maintenance, Problem, Cause, Solution, Please Read The Following Carefully