Harbor Freight Tools Septic System 66351 User Manual

1 HP cast Iron  
sewage PumP  
66351  
set uP, oPeratIng, and maIntenance  
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 2008 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 09i  
 
ductor in the cord is the grounding  
wire. Do not connect the green or  
green and yellow wire to a live termi-  
nal.  
d. do not operate this sewage  
Pump if either the Power cord (1),  
Power Plug (29), Housing (10), or  
Base (27), appear cracked or dam-  
aged in any way.  
e. warnIng! do not repair a dam-  
aged power cord. always replace  
the cord before further use of this  
sewage Pump.  
f. do not place this sewage Pump  
in water with bare hands. always  
wear heavy-duty, insulated rubber  
gloves.  
Your unit has a plug as illustrated  
above. The outlet used should look  
like the outlet illustrated above. do  
not remove the grounding prong  
from the plug. If the plug will not  
fit the outlet, have a proper outlet  
installed by a qualified electrician.  
g. do not attach the power plug to  
electrical outlet until the sewage  
Pump is placed where it will re-  
main during operation.  
h. always unplug the sewage Pump  
before touching, moving, inspect-  
ing, or servicing.  
5. 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. (Califor-  
nia Health & Safety Code § 25249.5,  
et seq.)  
2. Keep children away when assem-  
bling, setting up, inspecting and/or  
servicing this sewage Pump.  
3.  
Wear ANSI-approved safety  
goggles, heavy-duty insu-  
lated rubber work gloves  
and rubber boots while working with  
or around this Sewage Pump.  
General and Specific Safety  
1. warnIng: to prevent serious per-  
sonal injury and/or death to your-  
self and/or others:  
4. Do not Overreach - Keep proper foot-  
ing and balance at all times.  
5. Stay Alert - Watch what you are do-  
ing. Use common sense.  
a. do not use this sewage Pump to  
pump any flammable, or explosive  
fluids, such as gasoline, fuel oil,  
kerosene, etc.  
b. DO NOT use in flammable, and/or  
explosive atmosphere.  
c. use this sewage Pump only with  
liquids compatible with pump  
component materials.  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 3  
 
product, but must be supplied by the  
operator.  
drip loop  
outlet  
saVe tHese  
InstructIons.  
deVIce  
sPecIFIcatIons  
cord  
Electrical Information 120 V, 60 Hz, 10.5 AMPS  
6. Use Drip-Loop to prevent water from  
accidentally entering the electrical  
power outlet. Use only with a GFCI  
outlet. see second paragraph in  
“Power cord safety” section of  
this manual.  
Gallons Per Minute  
Pump Motor  
110  
1 HP, 3450 RPM  
unPacKIng  
When unpacking, check to make sure  
that the item is intact and undamaged. If  
any parts are missing or broken, please  
call Harbor Freight Tools at the number  
shown on the cover of this manual as soon  
as possible.  
use and care  
1. When servicing use only identical  
replacement parts.  
2. Do not use this Sewage Pump for  
any job except that for which it is  
intended.  
set uP InstructIons  
3. disconnect the sewage Pump from  
the power supply when not in use,  
or before inspection and/or ser-  
vice/storage.  
read the entIre ImPortant  
saFety InstructIons  
section at the beginning of this  
manual including all text under  
subheadings therein before set  
up or use of this product.  
4. Store Idle Sewage Pump Indoors  
when not in use out of reach of chil-  
dren.  
to  
PreVent  
serIous  
5. Maintain labels and nameplates on  
the appliance. These carry important  
safety information. If unreadable or  
missing, contact Harbor Freight Tools  
for a replacement.  
Injury From accIdental  
oPeratIon:  
unplug the sewage Pump  
from its electrical outlet  
before assembling,  
inspecting, making any  
adjustments, or servicing.  
6. The warnings, precautions, and in-  
structions 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  
note: For additional information regarding  
the parts listed in the following pages,  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 4  
 
refer to the Assembly Diagram near  
the end of this manual.  
oPeratIng InstructIons  
read the entIre ImPortant  
saFety InFormatIon section  
at the beginning of this manual  
including all text under  
subheadings therein before set  
up or use of this product.  
assemBly  
1. Thread a discharge hose, or pipe  
(not supplied) to the orifice on side of  
Base (27).  
1. Before operating the Sewage Pump,  
put on ANSI-approved safety gog-  
gles and other safety gear including  
heavy-duty, insulated rubber gloves.  
Safety goggles and other safety gear  
are sold separately.  
2. If you use a check-valve (not sup-  
plied), mount the check valve hori-  
zonally or at 45°. The valve pivot  
should be on top. NOTE: If the  
check valve should be mounted in a  
vertical position, solid waste will tend  
to lodge on top of the valve flapper  
preventing it from opening.  
2. Install the Sewage Pump firmly on it’s  
Legs and supported by rigid hose, or  
pipe discharge fixtures to eliminate  
twisting and damage from motor  
torque during operation.  
3. If using a check-valve, drill a 1/16”  
hole in the discharge hose, or pipe 1”  
to 2” above the Base (27). The hole  
will prevent an air lock in the Mo-  
3. After installation, allow the Sew-  
age Pump to flood with water before  
plugging Power Cord (1) into outlet.  
This will help prevent over heating  
from running the Motor (18) with no  
water resistance moving through the  
Sewage Pump. Once this Sewage  
Pump is plugged into a 120 Volt GFCI  
outlet, the Motor (18) will start auto-  
matically.  
tor (18) both at start up and/or if the  
Sewage Pump should lose its prime.  
4. After the check-valve, a (full-port)  
gate-valve (not supplied), which will  
pass 2” solid waste should be in-  
stalled in the system. The gate-valve  
allows removal of the Sewage Pump  
for cleaning and service.  
note: If you do not feel qualified to  
completely (and safely) install this  
sewage Pump, it is recommended  
that you have it installed by a  
qualified plumber, or service tech-  
nician.  
4. This Sewage Pump is designed to  
transfer waste water in cycles.  
Rev 09i  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 5  
 
warnIng: this sewage Pump contains  
dielectric motor oil for both lubri-  
cation and heat transfer. It may be  
under pressure because of heat  
collection. let the sewage Pump  
cool for at least 2 hours before  
inspecting, or servicing. this oil  
may be dangerous to the environ-  
ment. always dispose of used oil  
in compliance with all local, state  
and Federal rules and regulations.  
maIntenance and  
serVIcIng  
Procedures not specifically  
explained in this manual  
must be performed only by a  
qualified technician.  
to PreVent  
serIous Injury  
From accIdental  
oPeratIon or electrIc  
sHocK:  
unclogging the Impeller (24).  
unplug the sewage Pump  
from its electrical outlet  
before performing any  
accessory change, inspection,  
maintenance, and/or cleaning  
procedures.  
1. Unplug the Sewage Pump, put on  
heavy-duty insulated rubber gloves  
and ANSI-approved safety goggles.  
2. Remove the discharge hose, or pipe.  
3. Lift Sewage Pump out of water using  
the Handle (5).  
to PreVent serIous  
Injury From tool  
FaIlure:  
do not use damaged  
equipment. If abnormal noise  
or vibration occurs, have the  
problem corrected before  
further use.  
4. To unclog the Impeller (24), remove  
5 Screws (28) on the Sewage Pump  
bottom and remove Base (27).  
5. Flush the Impeller (24) with clean,  
lukewarm water.  
6. Reinstall the Impeller (24) and re-  
place the Base (27) using the 5  
Screws (28).  
cleaning, maintenance, and  
lubrication  
7. Using the Handle (5), replace the  
Sewage Pump into water in original  
position.  
1. BeFore use and PerIodIcally  
tHereaFter, inspect the gen-  
eral condition of the Sewage Pump.  
Check for loose screws, misalignment  
or binding of moving parts, cracked or  
broken parts, damaged electrical wir-  
ing, and any other condition that may  
affect its safe operation.  
8. Re-thread the discharge pipe, or  
hose.  
9. Plug the Sewage Pump back into the  
120 Volt, GFCI power outlet.  
2.  
warnIng! If the supply cord of  
this appliance is damaged, it must  
be replaced only by a qualified  
service technician.  
10. The Sewage Pump will start auto-  
matically.  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 6  
 
troubleshooting  
Problem  
Possible causes  
likely solutions  
1. Check power at outlet.  
Sewage Pump will not 1. No power at outlet.  
start.  
2. Circuit breaker tripped.  
2. Check circuit breaker for outlet.  
3. Check that cord is plugged in.  
4. Check water level.  
3. Cord not connected.  
4. Water level too low.  
Low flow from  
1. Possible excess solid debris lodged 1. Check and clean debris from  
discharge outlets.  
Sewage Pump starts  
and stops too often.  
in Impeller.  
1. Possible back flow from discharge  
pipe and/or hoses.  
Impeller per instructions on Page 6.  
1. Install a check-valve.  
2. Check-valve either not installed, or if 2. Remove and examine check-valve  
installed, it is leaking.  
for proper installation and operation.  
Replace if necessary.  
Sewage Pump  
operates but delivers  
little or no water.  
1. Low line voltage.  
1. If voltage is under recommended  
minimum, check wiring size from the  
main switch on property. If not OK,  
contact local power company.  
2. Debris caught in Impeller or  
discharge hoses or pipes.  
2. Remove and check Impeller and  
discharge hoses or pipes. Clean if  
needed.  
3. Check-valve stuck closed or  
installed backwards.  
3. Remove and examine check-valve  
and reinstall correctly or replace.  
Follow all safety precautions whenever diagnosing or servicing the  
appliance. disconnect power supply before service.  
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 CERTIFIEDAND 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 09i  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 7  
 
Parts lIst  
Parts lIst  
Part  
description  
Q’ty  
1
2
1
2
1
1
1
1
1
1
2
1
4
1
Part  
description  
Q’ty  
1
2
3
4
5
6
7
8
9
Power Cord  
17 Motor Shaft  
1
1
1
1
1
1
1
1
6
1
1
5
1
Screw 3/16 - 24 x 1/4  
Cord Cover (Protector)  
Screw 1/4 - 20 x 1/4  
Handle  
Washer 3/16  
Strain Relief  
18 Motor  
19 Washer 6202zz - 12.7  
20 Mechanic Seal Typ 21  
21 O-Ring  
22 Motor Seat  
23 V-Seal  
Screw 3/16 24 x 308  
1/4” NPT Oil Plug  
24 Impeller  
25 Flat Screw 3/16 - 24 x 5/8  
26 Packing Gasket  
27 Base  
28 Screw 1/4 - 20 x 3/4  
29 Power Plug  
10 Pump Motor Housing  
11 Washer 3/16 x 1/4  
12 Capacitor 40uf/350 V Vac  
13 Screw M4 x 130  
14 Rear Cover  
15 Washer  
2
16 Washer 608zz  
1
assemBly dIagram  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 8  
 
lImIted 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 this prod-  
uct is free from defects in materials and workmanship for the period of 90 days from  
the date of purchase. This warranty does not apply to damage due directly or indirectly,  
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities,  
criminal activity, improper installation, 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 ExPRESS-  
LY IN LIEU OF ALL OTHER WARRANTIES, ExPRESS OR IMPLIED, INCLUDING THE  
WARRANTIES OF MERCHANTABILITY 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 com-  
plaint must accompany the merchandise. If our inspection verifies the defect, we will ei-  
ther 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 re-  
paired 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  
record Products 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 avail-  
able individually as replacement parts.  
SKU 66351  
For technical questions, please call 1-800-444-3353.  
Page 9  
 

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