Harbor Freight Tools 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

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

INSTRUCTIONS

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

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.

CAUTION, without

the safety alert
symbol, is used to address
practices not related to
personal injury.

When using

electric products,
basic safety precautions
should always be followed to

reduce the risk of re, electric

shock, and personal injury,
including the following:

READ ALL INSTRUCTIONS

POWER CORD SAFETY

DO NOT use this Sewage Pump with 1.
an extension cord.

Ground Fault Circuit Interrupter 2.
(GFCI) protection should be provided
on the circuit(s) or outlet(s) to be
used for the Sewage Pump. Recep­tacles are available having built-in
GFCI protection and may be used for
this measure of safety.

Do not Abuse Cord - Do not carry 3.
by cord or yank it to disconnect from
receptacle. Keep cord from heat, oil,
and sharp edges.

This 1 HP Cast Iron Sewage Pump 4.
should be grounded while in use to
reduce the risk of electric shock to
the operator. The Sewage Pump is

equipped with a 3-conductor cord

and 3-prong grounding plug to t

the proper grounding receptacle.
The green or green and yellow con-

SKU 66351 For technical questions, please call 1-800-444-3353. Page 2

ductor in the cord is the grounding
wire. Do not connect the green or
green and yellow wire to a live termi­nal.

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

t the outlet, have a proper outlet
installed by a qualied electrician.

WARNING: Handling the cord on 5.
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.)

General and Specic Safety

DO NOT operate this Sewage d.
Pump if either the Power Cord (1),
Power Plug (29), Housing (10), or
Base (27), appear cracked or dam­aged in any way.

WARNING! DO NOT repair a dam-e.
aged power cord. Always replace
the cord before further use of this
Sewage Pump.

DO NOT place this Sewage Pump f.
in water with bare hands. Always
wear heavy-duty, insulated rubber
gloves.

DO NOT attach the power plug to g.
electrical outlet until the Sewage
Pump is placed where it will re­main during operation.

Always unplug the Sewage Pump h.
before touching, moving, inspect­ing, or servicing.

Keep Children Away when assem-2.
bling, setting up, inspecting and/or
servicing this Sewage Pump.

3. Wear ANSI-approved safety
goggles, heavy-duty insu­lated rubber work gloves

and rubber boots while working with
or around this Sewage Pump.

WARNING: To prevent serious per-1.
sonal injury and/or death to your­self and/or others:

DO NOT use this Sewage Pump to a.

pump any ammable, or explosive
uids, such as gasoline, fuel oil,

kerosene, etc.

DO NOT use in ammable, and/or b.
explosive atmosphere.

Use this Sewage Pump only with c.
liquids compatible with pump
component materials.

SKU 66351 For technical questions, please call 1-800-444-3353. Page 3

Do not Overreach - Keep proper foot-4.
ing and balance at all times.

Stay Alert - Watch what you are do-5.
ing. Use common sense.

OUTLET

DEVICE

CORD

Drip Loop

product, but must be supplied by the
operator.

SAVE THESE

INSTRUCTIONS.

SPECIFICATIONS

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.

Use and Care

When servicing use only identical 1.
replacement parts.

Do not use this Sewage Pump for 2.
any job except that for which it is
intended.

Disconnect the Sewage Pump from 3.
the power supply when not in use,
or before inspection and/or ser­vice/storage.

Store Idle Sewage Pump Indoors 4.
when not in use out of reach of chil­dren.

Maintain labels and nameplates on 5.
the appliance. These carry important
safety information. If unreadable or
missing, contact Harbor Freight Tools
for a replacement.

The warnings, precautions, and in-6.
structions 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

Electrical Information 120 V, 60 Hz, 10.5 AMPS

Gallons Per Minute 110

Pump Motor 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.

SET UP INSTRUCTIONS

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.

TO
PREVENT

SERIOUS
INJURY FROM ACCIDENTAL
OPERATION:
Unplug the Sewage Pump
from its electrical outlet
before assembling,
inspecting, making any
adjustments, or servicing.

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.

ASSEMBLY

Thread a discharge hose, or pipe 1.

(not supplied) to the orice on side of

Base (27).

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.

If you use a check-valve (not sup-2.
plied), mount the check valve hori­zonally 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 apper

preventing it from opening.

If using a check-valve, drill a 1/16” 3.
hole in the discharge hose, or pipe 1”
to 2” above the Base (27). The hole
will prevent an air lock in the Mo­tor (18) both at start up and/or if the
Sewage Pump should lose its prime.

After the check-valve, a (full-port) 4.
gate-valve (not supplied), which will
pass 2” solid waste should be in­stalled in the system. The gate-valve
allows removal of the Sewage Pump
for cleaning and service.

NOTE: If you do not feel qualied to

completely (and safely) install this
Sewage Pump, it is recommended
that you have it installed by a
qualied plumber, or service tech­nician.

Before operating the Sewage Pump, 1.
put on ANSI-approved safety gog­gles and other safety gear including
heavy-duty, insulated rubber gloves.
Safety goggles and other safety gear
are sold separately.

Install the Sewage Pump rmly on it’s 2.
Legs and supported by rigid hose, or

pipe discharge xtures to eliminate

twisting and damage from motor
torque during operation.

After installation, allow the Sew-3.

age Pump to ood 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 auto­matically.

This Sewage Pump is designed to 4.
transfer waste water in cycles.

Rev 09i

SKU 66351 For technical questions, please call 1-800-444-3353. Page 5

MAINTENANCE AND

SERVICING

Procedures not specically
explained in this manual

must be performed only by a

qualied technician.

TO PREVENT

SERIOUS INJURY
FROM ACCIDENTAL
OPERATION OR ELECTRIC
SHOCK:
Unplug the Sewage Pump
from its electrical outlet
before performing any
accessory change, inspection,
maintenance, and/or cleaning
procedures.

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.

Cleaning, Maintenance, and

Lubrication

WARNING: This Sewage Pump contains

dielectric motor oil for both lubri­cation 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 environ­ment. Always dispose of used oil
in compliance with all local, State
and Federal rules and regulations.

Unclogging the Impeller (24).

Unplug the Sewage Pump, put on 1.
heavy-duty insulated rubber gloves
and ANSI-approved safety goggles.

Remove the discharge hose, or pipe.2.

Lift Sewage Pump out of water using 3.
the Handle (5).

To unclog the Impeller (24), remove 4.
5 Screws (28) on the Sewage Pump
bottom and remove Base (27).

Flush the Impeller (24) with clean, 5.
lukewarm water.

Reinstall the Impeller (24) and re-6.
place the Base (27) using the 5
Screws (28).

BEFORE USE and PERIODICALLY 1.
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 wir­ing, and any other condition that may
affect its safe operation.

2. WARNING! If the supply cord of

this appliance is damaged, it must

be replaced only by a qualied

service technician.

SKU 66351 For technical questions, please call 1-800-444-3353. Page 6

Using the Handle (5), replace the 7.
Sewage Pump into water in original
position.

Re-thread the discharge pipe, or 8.
hose.

Plug the Sewage Pump back into the 9.
120 Volt, GFCI power outlet.

The Sewage Pump will start auto-10.
matically.

Troubleshooting

Problem Possible Causes Likely Solutions

Sewage Pump will not
start.

Low ow from

discharge outlets.
Sewage Pump starts
and stops too often.

Sewage Pump
operates but delivers
little or no water.

No power at outlet.1.

Circuit breaker tripped.2.

Cord not connected.3.

Water level too low. 4.
Possible excess solid debris lodged 1.
in Impeller.
Possible back ow from discharge 1.
pipe and/or hoses.

Check-valve either not installed, or if 2.
installed, it is leaking.

Low line voltage. 1.

Debris caught in Impeller or 2.
discharge hoses or pipes.

Check-valve stuck closed or 3.
installed backwards.

Check power at outlet.1.

Check circuit breaker for outlet.2.

Check that cord is plugged in.3.

Check water level.4.
Check and clean debris from 1.
Impeller per instructions on Page 6.
Install a check-valve. 1.

Remove and examine check-valve 2.
for proper installation and operation.
Replace if necessary.
If voltage is under recommended 1.
minimum, check wiring size from the
main switch on property. If not OK,
contact local power company.

Remove and check Impeller and 2.
discharge hoses or pipes. Clean if
needed.

Remove and examine check-valve 3.
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 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 09i

SKU 66351 For technical questions, please call 1-800-444-3353. Page 7

PARTS LIST

PARTS LIST

Part Description Q’ty

1 Power Cord 1
2 Screw 3/16 - 24 X 1/4 2
3 Cord Cover (Protector) 1
4 Screw 1/4 - 20 X 1/4 2
5 Handle 1
6 Washer 3/16 1
7 Strain Relief 1
8 Screw 3/16 24 X 308 1

9 1/4” NPT Oil Plug 1
10 Pump Motor Housing 1
11 Washer 3/16 X 1/4 2
12 Capacitor 40uf/350 V Vac 1
13 Screw M4 X 130 4
14 Rear Cover 1
15 Washer 2
16 Washer 608zz 1

ASSEMBLY DIAGRAM

Part Description Q’ty

17 Motor Shaft 1
18 Motor 1
19 Washer 6202zz - 12.7 1
20 Mechanic Seal Typ 21 1
21 O-Ring 1
22 Motor Seat 1
23 V-Seal 1
24 Impeller 1
25 Flat Screw 3/16 - 24 X 5/8 6
26 Packing Gasket 1
27 Base 1
28 Screw 1/4 - 20 X 3/4 5
29 Power Plug 1

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 prod­uct 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 EXPRESS­LY 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 com­plaint must accompany the merchandise. If our inspection veries 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 specic 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 • [phone]

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 avail-

able individually as replacement parts.

SKU 66351 For technical questions, please call 1-800-444-3353. Page 9