SHALLOW WELL PUMP - Harbor Freight Tools - Quality Tools at the

SHALLOW WELL PUMP 1 HP - Stainless Steel

47906SEt UP And OPErAting inStrUctiOnS

Visit our website at: http://www.harborfreight.com

read this material before using this product. Failure to do so can result in serious injury. SAVE tHiS MAnUAL.

Copyright© 2002 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included.

For technical questions or replacement parts, please call 1-800-444-3353.revised Manual 08i, 08k; 09f, 09k

Page 2For technical questions, please call 1-800-444-3353.SKU 47906

SAVE tHiS MAnUALKeep this manual for the safety warnings

and precautions, assembly, operating, inspec-tion, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference.

iMPOrtAnt SAFEtY inFOrMAtiOn

in this manual, on the labeling, and all other information provided with this product:

this is the safety alert sym-bol. it is used to alert you to potential personal injury hazards. Obey all safety mes-sages that follow this symbol to avoid possible injury or death.

dAngEr indicates a hazardous situation

which, if not avoided, will result in death or serious injury.

WArning indicates a hazardous situation

which, if not avoided, could result in death or serious injury.

cAUtiOn, used with the safety alert

symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

nOticE is used to address practices not

related to personal injury.

cAUtiOn, without the safety alert symbol, is

used to address practices not related to personal injury.

SAFEtY WArningS And PrEcAUtiOnS

WArning read all safety warnings and instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference.

read all instructions before use!

Keep work area clean1. . Cluttered areas invite injuries.

Observe work area conditions2. . Do not expose this pump to rain or submerge in water. Keep work area well lighted. Do not use electrically powered pumps in the presence of flammable gases or liquids.

Keep children away3. . Children must never be allowed in the work area. Do not let them handle Pump.

Use the right pump for the job4. . Do not attempt to force a small Pump to do the work of a larger industrial Pump. There are certain applications for which this Pump was designed. It will do the job better and more safely at the rate for which it was intended. Do not modify this Pump and do not use this Pump for a purpose for which it was not intended.

dress properly5. . Do not wear loose clothing or jewelry as they can be caught in moving parts. Protective, electrically non-conductive clothes and non-skid footwear are recommended when work-ing. Wear restrictive hair covering to contain long hair.


Use eye and ear protection6. . Wear ANSI-approved impact safety goggles and ear protection.

do not overreach7. . Keep proper footing and balance at all times. Do not reach over or across running machines.

Maintain Pump with care8. . Keep Pump clean for better and safer performance. Inspect pump cords periodically; If dam-aged, have them repaired by a qualified technician.

disconnect power9. . Unplug Pump when not in use.

Stay alert10. . Watch what you are doing, use common sense. Do not install Pump when you are tired.

check for damaged parts11. . Before us-ing Pump, any part that appears dam-aged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment and binding of moving parts; any broken parts or mounting fix-tures; and any other condition that may affect proper operation. Any part that is damaged should be properly repaired or replaced by a qualified technician.

replacement parts and accessories12. . When servicing, use only identical re-placement parts. Use of any other parts will void the warranty.

Do not install Pump if under the influ-13. ence of alcohol or drugs. Read warn-ing labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs. If there is any doubt, do not install the Pump.

rEcOMMEndEd MiniMUM WirE gAUgE FOr EXtEnSiOn cOrdS

(120 VOLt)

nAMEPLAtE AMPErES(at full load)

EXtEnSiOn cOrd LEngtH

25’ 50’ 100’ 150’0 – 6 18 16 16 14

6.1 – 10 18 16 14 1210.1 – 12 16 16 14 1212.1 – 16 14 12 do not use.

tABLE A

USE PROPER EXTENSION CORD. 14. Make sure your extension cord is in good condition. When using an exten-sion cord, be sure to use one heavy enough to carry the current your prod-uct will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table A shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.

Maintenance15. . For your safety, mainte-nance should be performed regularly by a qualified technician.

Pump clean water only.16. Do not use the pump for any other application.

People with pacemakers should consult 17. their physician(s) before use. Electro-magnetic fields in close proximity to heart pacemaker could cause pacemak-er interference or pacemaker failure.

The brass components of this product 18. contain lead, a chemical known to the State of California to cause birth defects (or other reproductive harm). (California Health & Safety code § 25249.5, et seq.)

do not operate this pump if the power 19. cord or electrical components are damaged or the seals are compro-mised. do not plug in the power cord


when wet or standing on damp or wet ground. Exercise caution when work-ing with electrical equipment in the presence of water to maintain your personal insulation to avoid shock. Use gFci (ground Fault circuit inter-rupter) outlets when using this pump.WARNING: The brass components 20. of this product contain lead, a chemi-cal known to the State of California to cause birth defects (or other reproductive harm). (California Health & Safety code § 25249.5, et seq.)WARNING: Handling the cord on this 21. product will expose you to lead, a chemi-cal known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. (California Health & Safety Code § 25249.5, et seq.)

the warnings, cautions, and instruc-22. tions discussed in this instruction manual cannot cover all possible con-ditions and situations that may occur. it must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator.

UnPAcKingWhen unpacking, make sure the item is

intact and undamaged. If any parts are miss-ing or broken, please call Harbor Freight Tools at 1-800-444-3353 as soon as possible.

SPEciFicAtiOnSPower Requirements 120 V~, 60 Hz, 1 HPMotor Speed 3400 RPMDischarge/Intake 1” NPTMax. Flow 900 GPHMax. Suction Lift 26’Max. Total Head 164’Tank Size 5 GallonsPump Body Material Stainless SteelCut-in Pressure 20 PSICut-out Pressure 50 PSI

note: Performance of this pump (if powered by line voltage) may vary depending on variations in local line voltage. Extension cord usage may also affect pump perfor-mance.

rEV 07g; 08k; 09c


inStALLAtiOndischarge

intake

Pressure Meter

Priming inlet

Air Valve (hidden)

Fig. 1

WArning! tO PrEVEnt SEriOUS injUrY FrOM ELEctric SHOcK: Install indoors or in weather-proof well house only. This Pump is non-submers-ible. Do not plug in the power cord when wet or standing on damp or wet ground. Do not plug in the power cord until instructed to do so.

note: ONLY pump clean water.

note: Additional components (such as valves and pipes) may be required for installa-tion, but not included.

note: Installation requires skilled workman-ship and compliance with local building codes. If you are not confident in your ability to properly and safely install this pump, have a qualified technician perform the installation.

The water to be pumped must be clean 1. and must be free of sand and grit, which would damage the pump and void the warranty.

Foot Valve

check Valve

Well Seal

Shallow Well Pump

to Household

Water System

Standing Water Level(With Well Pump Off)

Pumping Water Level (with Well Pump Operating)

Outlet Water Level

Vert

ical

Wel

l Lift

Hea

d

SLOPE SLigHtLY dOWnWArd tO WELL

Length of off-set line(Add when calculating total suction

lift due to friction.)

Fig. 2

2. The illustration above shows an example of a proper shallow well pump installation. The total suction lift (vertical well lift + length of off-set line) must not exceed the Maximum Suction Lift listed on the Specifications chart.

note: This pump is intended for shallow well application only and is not intended to be used as a booster pump.

note: For optimal performance, install the pump as close to the well head as pos-sible.

Install a Foot Valve at the bottom of the 3. suction pipe. The Foot Valve must be under the Pumping Water Level, the level that the water falls to when the pump operates.

Install a sterile Well Seal at the top of 4. the suction pipe to keep the well clean. Protect from rust inside a frost-proof enclosure.

rEV 05l, 07g, 09d, 09e


Intake and discharge pipes must be at 5. least 1” in diameter.

Lay an off-set line from the well to the 6. structure the pump will be installed in. The off-set line should slope slightly towards the well (see Fig. 2). Systems with longer off-set lines should use larger diameter pipe to improve efficiency.

Install the pump on a rigid, level, dry 7. platform. This platform must provide a solid, level surface that is capable of supporting the weight of the pump and attached piping filled with water. Do not allow water to contact the pump’s housing.

caution: DO NOT INSERT fittings into the Intake Hole farther than 1/2”; this can DAMAGE the Pump, diminish Pump functions, and/or STOP water flow.

Keep the Head, the height that the 8. pump discharge must push water before discharge, to a minimum. The Vertical Well Lift, Off-set Line Length, and Head added together must be less than Max. Total Head to have flow at output. Effective flow decreases to 0 GPH as Total Head reaches its maximum.

For your protection, the power outlet 9. used should have a Ground Fault Circuit Interrupter (GFCI). Have it installed by a qualified electrician. Keep power line away from water.

The inlet and discharge lines should not 10. be wedged or stressed in a way that puts strain on the pump. Do not support the pump with the inlet and discharge lines.

rEV 09d


OPErAtiOnCompression Tank has a rubber bladder 1. inside. This bladder must be pumped up to 26-29 PSI of air at all times. Use a bicycle pump (not included) to inflate the bladder. On the end of the Compression Tank opposite the side with the Pressure Meter, is an air valve located under a cover. Remove the cover over the air valve and periodically monitor this air valve with an air pressure gauge to insure that the rubber bladder maintains the required air pressure.

Make sure the intake pipe is fully 2. submerged before continuing.

Before starting the pump for the first 3. time, prime it by pouring clean water into the Priming inlet.

This is a self-starting pump that uses a 4. pressure switch. Once the power cord is connected and the unit is switched on, the pump can start at any time. do not handle or perform maintenance on the pump if the power cord is plugged in.

To begin pumping, plug in the power 5. cord and turn the switch on. When the line is pressurized, the pump will go to standby mode until the pressure falls below its starting pressure.

Page 8For technical questions, please call 1-800-444-3353.SKU 47906rEV 06c; 07g; 07l; 08l; 09d

MAintEnAncEWArning! disconnect pump from power

source before maintenance.

Clean the inlet screen on the intake port 1. regularly to remove accumulated debris.

Wipe the pump clean with a soft, damp 2. cloth with soapy water. Do not use sol-vents. Do not get the electrical compo-nents wet.

Drain water from pump before storage 3. by disconnecting the water lines and turning the Pump upside down. 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. do not expose to freezing tem-peratures.

After storage, check the Impeller to make 4. sure it turns easily and is not oxidized.

note: Turn off the Switch and unplug the pump when performing maintenance.

troubleshooting

Problem cause SolutionThe pump won’t start No power.1.

Pressure switch disconnected.2. Thermal Protection cut out.3. Blocked impeller.4.

Check connections, and breaker/fuse.1. Check gauge.2. Allow pump to cool.3. Free the impeller.4.

The pump operates but it won’t discharge water

Pump not primed.1. Lift height exceeded.2. Inlet tube not submerged.3. Air in suction pipe.4. Inlet screen clogged.5.

Prime pump.1. Reduce lift height.2. Submerge the inlet.3. Check pipe and seals.4. Clean screen.5.

Only a low volume of water flows

Inlet pipe is too small.1. Liquid is too dirty.2. Lifting height exceeded.3. Tank’s rubber bladder under-inflated.4. Piping corroded, causing friction.5.

Increase pipe diameter.1. Clean screen frequently.2. Reduce lifting height.3. Inflate to 26-29 PSI.4. Replace piping, with plastic where 5. possible.

Motor overheats often Extension cord too long or wire size too 1. small.Pump cycling too often.2.

Eliminate use of extension cord or use 1. shorter/heavier gauge cord.Cut-in and cut-out pressure may be set 2. too closely; Have the pressure switch adjusted by a qualified technician.

Pump/motor cycles rapidly

Cut-in and cut-out pressure may be set too closely.

Have the pressure switch adjusted by a qualified technician.

Tank bladder will not hold pressure

Air inlet valve is leaking. 1.

Bladder is broken.2.

Check air tank for leaks using soapy 1. water and replace bladder if needed.Replace bladder.2.

Water pumps intermittently

Water level is being drawn below foot valve. Lower foot valve.

Follow all safety precautions whenever diagnosing or servicing the pump. disconnect power supply before service. do not disassemble the pump or motor as this will damage the water seals. All repairs should be performed by a qualified technician.


PLEASE rEAd tHE FOLLOWing cArEFULLYTHE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR 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.

Problem cause SolutionPump will not hold prime

Foot/check valve not installed in suction 1. line.Foot/check valve leaks water back to well.2.

Install foot and check valve in suction 1. line.Replace foot/check valve.2.

Water is full of bubbles at outlet

Pumping bubbles temporarily as air is 1. purged after initial setup.Leak in suction side of pump system.2. Well is gaseous.3. Water level below suction inlet of foot 4. valve.

Temporary self-remedying issue. 1.

Check for and fix leaks.2. Install a sleeve in the well.3. Lower suction line into water and re-4. prime. If water is deeper than 26 ft, then a deep well pump may be needed.

Motor runs, but water is not pumping

Improper priming. 1.

Air leakage. 2.

Vertical lift too high. 3.

Water level below suction inlet of foot 4. valve.

Frozen pipes. 5.

Foot valve in dirt or sand.6. Foot/check valve clogged.7. Pressure switch is set too low.8.

Prime the pump by pouring clean water 1. into the Priming Inlet.Check all pipes and joints in the suction 2. line for air leakage using soapy water.Reduce vertical lift to within 3. specifications. See Installation instructions.Lower suction line into water and re-4. prime. If water is deeper than 26 ft, then a deep well pump may be needed.Thaw the pipes. Bury pipes below 5. freeze line/insulate pipes.Raise foot valve to clean water level.6. Clean or replace foot/check valve.7. Have the pressure switch adjusted by 8. qualified technician (20-50 psi).

Pump does not shut-off

Pressure switch contacts welded together. 1.

Faucet is open or leaking.2. Toilet leaking.3. Impeller is clogged.4. Tank bladder pressure is too low.5. Pipeline leakage.6. Foot/check valve leaks water back to well.7.

Have the pressure switch replaced by a 1. qualified technician.Close or repair faucet.2. Repair leaky toilet.3. Clean impeller.4. Inflate to 26-29 psi.5. Repair pipeline.6. Replace foot/check valve.7.

Follow all safety precautions whenever diagnosing or servicing the pump. disconnect power supply before service. do not disassemble the pump or motor as this will damage the water seals. All repairs should be performed by a qualified technician.


Part description Qty.1 Screw M8x12 42 Motor Housing 13 Fan Blade 14 Rear Cover 15 Spring Washer 16 Motor Bolt M5x125 47 Stator 18 Bearing 19 Rotor 1

10 Bearing 111 Rubber Sheath 112 Screw 4.2x15 213 Cable Block 114 Cable Sleeve 117 Waterproof Cover 119 Sealing 120 Capacitor Cover 121 Capacitor 122 Side Cover 124 Waterproof Switch 125 Screw 3.5 x 20 326 Hex Nut M8x20 427 Front Cover 1

Part description Qty.28 Rubber Ring 129 O-ring 130 Flange 131 Immobile Ring 133 Impeller 134 Flow Guide Plate 135 O-ring 136 Flow Guide Assy. 137 O-ring 138 Pump Shell 142 Screw M8x20 443 O-ring 145 Small Valve Cover 152 Retaining Ring 153^ PTFE Thread Seal Tape Roll 154^ Foot Valve 155^ Check Valve 1

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.

record Product’s Serial number Here: note: If product has no serial number, record month and year of purchase instead.

note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts.

PArtS LiSt

^ Parts marked with a caret (^) are not shown on the diagram.


ASSEMBLY drAWing

rEV 08f, 09c


PArtS LiSt And ASSEMBLY drAWing Anote: When ordering a part from this drawing, you must include the suffix “A” with the number.

Part description Qty1A Compression Tank 12A Pump Assembly 13A Hex Bolt 24A Hex Nut 25A Pressure Meter 16A Cable 17A Switch 18A Cord 19A Tube 1

10A Latex Seal 151A Rubber Bladder (not shown) 15B Bushing 1

10B Latex Seal 1

rEV 05h, 08f, 09c

Page 13For technical questions, please call 1-800-444-3353.SKU 47906rEV 07g

LiMitEd 1 YEAr / 90 dAY WArrAntYHarbor Freight Tools Co. makes every effort to assure that its products meet high qual-

ity and durability standards, and warrants to the original purchaser that for a period of ninety days from date of purchase that the engine/motor, the belts (if so equipped), and the blades (if so equipped) are free of defects in materials and workmanship. Harbor Freight Tools also warrants to the original purchaser, for a period of one year from date of purchase, that all other parts and components of the product are free from defects in materials and workmanship (90 days if used by a professional contractor or if used as rental equipment). This warranty does not apply to damage due directly or indirectly, to misuse, abuse, negligence or accidents, re-pairs or alterations outside our facilities, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death, injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limita-tion of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MER-CHANTABILITY AND FITNESS.

To take advantage of this warranty, the product or part must be returned to us with trans-portation charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise. If our inspection verifies the defect, we will either repair or re-place the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will return repaired products at our ex-pense, but if we determine there is no defect, or that the defect resulted from causes not within the scope of our warranty, then you must bear the cost of returning the product.

This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353

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SHALLOW WELL PUMP - Harbor Freight Tools - Quality Tools at the