3/4 HP, 1” Cast Iron sHallow well PumP 2955 ... - Harbor Freight Tools

3/4 HP, 1” Cast Iron sHallow
well PumP
2955
set 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; 09f, 09k

saVe tHIs manual
Keep this manual for the safety warnings
and precautions, assembly, operating, inspection,
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:
reV 06c; 07g
SKU 2955
this is the safety alert symbol.
It is used to alert you
to potential personal injury
hazards. obey all safety messages
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.
For technical questions, please call 1-800-444-3353.
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!
1. Keep work area clean.
Cluttered areas
invite injuries.
2. observe work area conditions.
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.
3. Keep children away.
Children must
never be allowed in the work area. Do
not let them handle Pump.
4. use the right pump for the job.
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.
5. dress properly.
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 working.
Wear restrictive hair covering to
contain long hair.
Page 2

6. use eye and ear protection.
Wear
ANSI-approved impact safety goggles
and ear protection.
7. do not overreach.
Keep proper footing
and balance at all times. Do not reach
over or across running machines.
8. maintain Pump with care.
Keep Pump
clean for better and safer performance.
Inspect pump cords periodically; If damaged,
have them repaired by a qualified
technician.
9. disconnect power.
Unplug Pump when
not in use.
10. stay alert.
Watch what you are doing,
use common sense. Do not install Pump
when you are tired.
11. Check for damaged parts.
Before using
Pump, any part that appears damaged
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 fixtures;
and any other condition that may
affect proper operation. Any part that is
damaged should be properly repaired or
replaced by a qualified technician.
12. replacement parts and accessories.
When servicing, use only identical replacement
parts. Use of any other parts
will void the warranty.
13.
Do not install Pump if under the influence
of alcohol or drugs. Read warning
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.
reV 07g; 08j, 09d
SKU 2955
14.
reCommended mInImum wIre
gauge For eXtensIon Cords
(120 Volt)
namePlate
amPeres
(at full load)
For technical questions, please call 1-800-444-3353.
eXtensIon Cord
lengtH
25’ 50’ 100’ 150’
0 – 6 18 16 16 14
6.1 – 10 18 16 14 12
10.1 – 12 16 16 14 12
12.1 – 16 14 12 do not use.
taBle a
USE PROPER EXTENSION CORD.
Make sure your extension cord is in
good condition. When using an extension
cord, be sure to use one heavy
enough to carry the current your product
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.
15. maintenance.
For your safety, maintenance
should be performed regularly by
a qualified technician.
16. Pump clean water only. Do not use the
pump for any other application.
17.
18.
19.
People with pacemakers should consult
their physician(s) before use. Electromagnetic
fields in close proximity to
heart pacemaker could cause pacemaker
interference or pacemaker failure.
The brass components of this product
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
cord or electrical components are
damaged or the seals are compromised.
do not plug in the power cord
Page 3

when wet or standing on damp or wet
ground. exercise caution when working
with electrical equipment in the
presence of water to maintain your
personal insulation to avoid shock.
use gFCI (ground Fault Circuit Interrupter)
outlets when using this pump.
20. warnIng: Handling the cord on this
product will expose you to lead, a chemical
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.)
21.
the warnings, cautions, and instructions
discussed in this instruction
manual cannot cover all possible conditions
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.
SKU 2955
unPaCKIng
When unpacking, make sure the item is
intact and undamaged. If any parts are missing
or broken, please call Harbor Freight Tools
at 1-800-444-3353 as soon as possible.
sPeCIFICatIons
Power Requirements 120 V~, 60 Hz, 3/4 HP
Motor Speed 3400 RPM
Discharge/Intake 1” NPT
Max. Flow 900 GPH
Max. Suction Lift 26’
Max. Total Head 140’
Tank Size 5 Gallons
Pump Body Material Cast Iron
Cut-in Pressure 20 PSI
Cut-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 performance.
For technical questions, please call 1-800-444-3353.
Page 4

Intake
Fig. 1
Priming
Inlet
SKU 2955
InstallatIon
discharge
air Valve
(hidden)
warnIng! to PreVent serIous InjurY
From eleCtrIC sHoCK:
Install indoors or in weather-proof well
house only. This Pump is non-submersible.
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 installation,
but not included.
note: Installation requires skilled workmanship
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.
reV 05l, 07g, 09d
The water to be pumped must be clean
and must be free of sand and grit, which
would damage the pump and void the
warranty.
For technical questions, please call 1-800-444-3353.
1.
well
seal
standing water level
(with well Pump off)
Foot
Valve
Check
Valve
length of off-set line
(add when calculating total suction
lift due to friction.)
sloPe slIgHtlY downward to well
to
Household
water
system
Vertical well lift
shallow
well Pump
Pumping water level (with well Pump operating)
outlet water
level
Head
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 possible.
3.
4.
Install a Foot Valve at the bottom of the
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
the suction pipe to keep the well clean.
Protect from rust inside a frost-proof
enclosure.
Page 5

5.
6.
7.
Intake and discharge pipes must be at
least 1” in diameter.
Lay an off-set line from the well to the
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
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.
8.
9.
10.
reV 09d
Keep the Head, the height that the
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
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
be wedged or stressed in a way that puts
strain on the pump. Do not support the
pump with the inlet and discharge lines.
SKU 2955
For technical questions, please call 1-800-444-3353.
Page 6

1.
2.
3.
4.
5.
SKU 2955
oPeratIon
Compression Tank has a rubber bladder
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
submerged before continuing.
Before starting the pump for the first
time, prime it by pouring clean water
into the Priming Inlet.
This is a self-starting pump that uses a
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
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.
For technical questions, please call 1-800-444-3353.
Page 7

eV 06c; 07g; 07l; 08l; 09d
SKU 2955
maIntenanCe
warnIng! disconnect pump from power
source before maintenance.
1.
2.
Clean the inlet screen on the intake port
regularly to remove accumulated debris.
Wipe the pump clean with a soft, damp
cloth with soapy water. Do not use solvents.
Do not get the electrical components
wet.
Drain water from pump before storage
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 temperatures.
For technical questions, please call 1-800-444-3353.
3.
4.
troubleshooting
After storage, check the Impeller to make
sure it turns easily and is not oxidized.
note: Turn off the switch and unplug the
pump when performing maintenance.
Problem Cause solution
The pump won’t start 1. No power.
1. Check connections, and breaker/fuse.
The pump operates
but it won’t discharge
water
Only a low volume of
water flows
2.
3.
Pressure switch disconnected.
Thermal Protection cut out.
4. Blocked impeller.
1. Pump not primed.
2.
3.
4.
Lift height exceeded.
Inlet tube not submerged.
Air in suction pipe.
5. Inlet screen clogged.
1. Inlet pipe is too small.
2.
3.
4.
5.
Liquid is too dirty.
Lifting height exceeded.
Tank’s rubber bladder under-inflated.
Piping corroded, causing friction.
Motor overheats often 1. Extension cord too long or wire size too
small.
Pump/motor cycles
rapidly
Tank bladder will not
hold pressure
Water pumps
intermittently
2.
Pump cycling too often.
Cut-in and cut-out pressure may be set too
closely.
1. Air inlet valve is leaking.
2.
3.
Check gauge.
Allow pump to cool.
4. Free the impeller.
1. Prime pump.
2.
3.
4.
Reduce lift height.
Submerge the inlet.
Check pipe and seals.
5. Clean screen.
1. Increase pipe diameter.
2.
3.
4.
Clean screen frequently.
Reduce lifting height.
Inflate to 26-29 PSI.
2. Bladder is broken.
2. Replace bladder.
Water level is being drawn below foot valve. Lower foot valve.
5. Replace piping, with plastic where
possible.
1. Eliminate use of extension cord or use
shorter/heavier gauge cord.
2. Cut-in and cut-out pressure may be set
too closely; Have the pressure switch
adjusted by a qualified technician.
Have the pressure switch adjusted by a
qualified technician.
1. Check air tank for leaks using soapy
water and replace bladder if needed.
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.
Page 8

Problem Cause solution
Pump will not hold 1. Foot/check valve not installed in suction 1. Install foot and check valve in suction
prime
line.
line.
Water is full of
bubbles at outlet
Motor runs, but water
is not pumping
Pump does not shutoff
SKU 2955
2. Foot/check valve leaks water back to well. 2. Replace foot/check valve.
1. Pumping bubbles temporarily as air is
purged after initial setup.
1. Temporary self-remedying issue.
2.
3.
Leak in suction side of pump system.
Well is gaseous.
4. Water level below suction inlet of foot
valve.
1.
2.
3.
Improper priming.
Air leakage.
Vertical lift too high.
4. Water level below suction inlet of foot
valve.
5.
6.
7.
Frozen pipes.
Foot valve in dirt or sand.
Foot/check valve clogged.
Check for and fix leaks.
Please read tHe FollowIng CareFullY
THE 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.
For technical questions, please call 1-800-444-3353.
2.
3.
Install a sleeve in the well.
4. Lower suction line into water and reprime.
If water is deeper than 26 ft,
then a deep well pump may be needed.
1. Prime the pump by pouring clean water
into the Priming Inlet.
2. Check all pipes and joints in the suction
line for air leakage using soapy water.
3. Reduce vertical lift to within
specifications. See Installation
instructions.
4. Lower suction line into water and reprime.
If water is deeper than 26 ft,
then a deep well pump may be needed.
5. Thaw the pipes. Bury pipes below
freeze line/insulate pipes.
6.
7.
Raise foot valve to clean water level.
Clean or replace foot/check valve.
8. Pressure switch is set too low.
8. Have the pressure switch adjusted by
qualified technician (20-50 psi).
1. Pressure switch contacts welded together. 1. Have the pressure switch replaced by a
qualified technician.
2.
3.
4.
5.
6.
7.
Faucet is open or leaking.
Toilet leaking.
Impeller is clogged.
Tank bladder pressure is too low.
Pipeline leakage.
Foot/check valve leaks water back to well.
2.
3.
4.
5.
6.
Close or repair faucet.
Repair leaky toilet.
Clean impeller.
Inflate to 26-29 psi.
Repair pipeline.
Replace foot/check 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.
7.
Page 9

Part description Qty.
1* Hex Screw 4
2* Motor Cover 1
3* Fan Blade 1
4* Rear Cover 1
5* Spring Washer 1
6* Bolt 4
7* Stator 1
8* Bearing (rear) 1
9* Rotor 1
10* Bearing (front) 1
11* Connecting Screw 4
12* Front Cover 1
13 Rubber Ring 1
14 O-ring 1
15 Flange 1
16 O-ring 1
17 Impeller 1
18 Flow Guide Plate 1
19 O-ring 1
20 Flow Guide Assembly 1
21 O-ring 1
22 Pump Shell 1
23 Priming Plug 1
25 O-ring 1
27 Switch 1
28 Pressure Meter 1
29 Seal Lining 1
SKU 2955
Parts lIst
Part description Qty.
30 Cord and Plug 1
31 Tube 1
32 Rubber Sheath 1
33 Seal Lining 1
34 O-ring 1
35 Tank 1
36 Hex Bolt 2
37 Hex Nut 1 2
38 Rubber Sheath 3
39* Capacitor Fastener 1
40* Capacitor 1
41* Self Tapping Screw 2
42* Cable Pressing Block 1
43* Cable Sleeve 1
44* Self Tapping Screw 3
45* Switch 1
47* Side Cover 1
48* Isolate Cover 1
49* Connecting Cable 1
50 Motor Kit 1
51 Bladder inside Tank and Air Valve 1
52 Retaining Ring 1
54 Small Bushing 2
55 Sealing 1
56^ PTFE Thread Seal Tape Roll 1
57^ Foot Valve 1
58^ Check Valve 1
* Parts marked with an asterisk (*) may only be purchased as part of the motor Kit (50).
They cannot be purchased separately.
^ Parts marked with a caret (^) are not shown on the diagram.
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.
reV 03e, 09c
For technical questions, please call 1-800-444-3353.
Page 10

eV 03e, 09c
SKU 2955
assemBlY drawIng
For technical questions, please call 1-800-444-3353.
Page 11

eV 07g
SKU 2955
lImIted 1 Year / 90 daY warrantY
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality
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, repairs
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 limitation
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 transportation
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 replace
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 expense,
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
For technical questions, please call 1-800-444-3353.
Page 12