Harbor Freight Tools DRUMMOND 56701 Assembly instructions

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1/2 HP
SUBMERSIBLE
SEWAGE PUMP
Do not return this
pump to the store.
Call 1-844-416-9141
Owner’s Manual & Safety Instructions
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. 19f
When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2019 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 an d se rv ic e may n ot b e in cl uded.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

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Specifications
Electrical Rating 120VAC / 60Hz / 8.5A
Power Cord Length 10’
Maximum Flow @ 0’ 6000 GPH
Maximum Head lift @ 0 Flow 18′
Discharge Port 2″ NPT Thread
Before start-up, note the following:
The pump must be connected to a GFCI protected plug which has been installed according
to regulations. The plug must have a supply voltage of 120 VAC at 60 Hz.
CAUTION
This pump has been evaluated for use with water only.
WARNING
IMPORTANT! For your own safety –
before starting to run the pump, please have
the following items checked by an expert:
1. Risk of electric shock – This pump is supplied
with a grounding conductor and grounding-type
attachment plug. To reduce the risk of electric shock,
be certain that it is connected only to a properly
grounded, grounding-type receptacle.
2. Risk of electric shock – This pump has not been
investigated for use in swimming pool areas.
3. The electrical connections must be
protected from moisture.
4. If there is danger of flooding, the electrical
connections must be taken to higher ground.
5. Circulation of caustic fluids, as well as the circulation
of abrasive materials, must be avoided at all costs.
6. The pump must be protected from frost.
7. The pump must be protected from running dry.
8. Access by children should also be
prevented with appropriate measures.
9. To prevent death from electric shock,
pump must be connected only to a GFCI
protected outlet.
10. Do not use an extension cord with this item.
11. 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.
12. The warnings, precautions, 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.
Fluid Type
The Pump is designed for use with water with a maximum temperature of 131° F (55°C).
Do not use the pump for other fluids, especially not fuels, cleaning fluids, or other chemical products.

Page 3For technical questions, please call 1-888-866-5797.Item 56701
Installation
The submersible motor pump must be installed in a stationary position with either:
a. A fixed pipeline or
b. A flexible hose pipe.
Please note!
1. Do not install the pump by suspending it
unsupported from its delivery pipe or power cord.
The pump must be suspended from the handle
or be placed on the bottom of the basin.
To ensure that the pump works properly,
keep the bottom of the basin free from
sludge and dirt of all kinds.
2. If the water level sinks too low, any sludge in the
basin will dry out and stop the pump from starting.
To help ensure the pump will start as required,
check the pump regularly with start-up tests.
Power Supply
1. The pump is equipped with a shock-proof plug
according to regulations. The pump is designed to be
connected to 120 VAC, 60 Hz GFCI protected socket.
2. Make sure that the socket is sufficiently
secured and is in excellent condition.
3. When the plug is inserted into the socket,
the pump will be on standby.
4. WARNING: To prevent death from electric
shock, pump must be connected only to
a GFCI protected outlet.
WARNING! If the power cord or plug is damaged,
do not use the pump. The power cord or plug
may only be repaired by a certified electrician.
Areas of use
1. This pump is designed to be used for:
Pumping domestic sewage, effluent, wastewater,
groundwater and other nonexplosive,
noncorrosive liquids with up to 2″ diameter
solids to gravity-fed sewage line
2. This pump should NOT be used for:
Continuous run, fountain/pond water features.
Removing water from swimming pools or spas.
Installation Instructions
1. Construct a basin that is at least 30″ deep
and at least 18″ in diameter.
at least 18″
diameter
at least 30″ deep
Sewage
Basin
Inlet Pipe
Figure A: Sewage Basin
2. Position Pump on solid surface so that both
hoses are free from kinks the Float Switch is
away from the inlet pipe and at least 1″ away
from all obstructions throughout its movement.
3. Fit a sewage cover with a vent pipe, a hole for
the output pipe and a hole for the power cords.
Thread the Power Cords through their holes,
but do not plug them in yet. Set the
sewage cover aside for now. Place unused
end of discharge hose the other end
Note: The sewage cover must also
be fitted with a vent pipe.

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Pump
Cord
Float
Switch
Cord
Sewage Cover
Vent
Float
Switch
Pump
Figure B: Pump Position
4. Attach a discharge pipe to the Pump Outlet.
Note: Wrap all threaded connections
with PTFE thread seal tape.
5. Check Valve is sold separately. Install
according to manufacturer instructions.
6. To prevent excessive cycling from backflow of water,
install a check valve onto the discharge pipe. This
prevents water from flowing back after the pump
shuts off. Mount the check valve according to check
valve label to avoid the valve flapper getting stuck.
To main waste line
(sewer or septic tank)
GFCI-
Protected
Receptacle
Float
Switch
Cord
Pump Cord
Vent
Check
Valve
Pump
Outlet
1/8″ Air
Bleed
Hole
Discharge
Pipe
Figure C: Outlet Pipe and Plug
IMPORTANT: Drill a 1/8″ diameter air bleed hole
through the Discharge Pipe just above the lower Base
to prevent Pump ″airlock″. A small spray of water out
of this hole is normal while the Pump is running.
7. Connect additional Discharge Pipe as needed to
direct the discharge to the main waste line for the
sewer or septic tank. The discharge should be kept
as short as possible with a minimum number of turns.
IMPORTANT: Do not exceed the
Maximum Head Lift @ 0 Flow of the Pump.
Operation
After reading these instructions, consider the following points before starting the pump:
1. Verify that the pump rests on the floor of the basin.
2. Verify that the discharge pipe is properly connected.
3. Verify that the electrical connection
is 120 VAC, 60 Hz.
4. Verify that the electrical socket is GFCI
protected and in good condition. Test
GFCI protected outlet before use.
5. Verify that water and moisture cannot
get near the power supply socket.
6. Verify that the pump is installed so
as to prevent running dry.
Maintenance
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Unplug the Pump from its electrical outlet before performing any
inspection, maintenance, or cleaning procedures.
If the pump is moved during operation, flush it out with clean water after every use.

Page 5For technical questions, please call 1-888-866-5797.Item 56701
Quarterly Maintenance
The below maintenance must be performed at least once every 3 months under optimal conditions.
For frequent use, or dirty areas, more frequent maintenance is required.
1. Clean sludge and debris from the bottom of the basin.
2. Clean sludge/debris from inlet screen.
3. Make sure discharge pipe is free from leaks.
4. Make sure check valve is functioning properly.
5. Manually operate flow switch to determine that pump turns on/off as intended.
Troubleshooting
Problem Possible Causes Possible Solutions
Pump runs, but
will not deliver
any water.
Disconnect power cords immediately
to prevent damage from running dry.
1. Pump “airlock”. The impeller is
trapped in an air bubble.
2. Shut off valve closed (if installed).
3. Impeller clogged.
4. Discharge Pipe frozen or blocked.
5. Low line voltage.
6. Check valve (sold separately)
stuck or installed backwards.
Disconnect power cords immediately to
prevent damage from running dry.
1. Drill a 1/8″ diameter air bleed hole through
the Discharge Pipe just above the lower
Base. Make sure air bleed hole is clear.
2. Open valve.
3. Clean out dirt and debris from impeller.
4. Thaw pipe and/or remove debris.
5. Consult an electrician.
6. Remove and examine check valve.
Pump won’t
start or run.
1. Check power connections
and circuits/fuses.
2. Float Switch failed.
3. Impeller clogged.
4. Defective motor.
1. Consult an electrician.
2. Replace Float Switch.
3. Clean out dirt and debris from impeller.
4. Have a qualified service technician repair or replace.
Excessive noise
or vibration.
1. Worn bearings.
2. Debris in impeller.
3. Discharge pipe restricted.
1. Have a qualified service technician repair or replace.
2. Clean impeller.
3. Clean Pump and discharge pipe.
Straighten flexible hose.
Pump starts
and stops too
frequently.
1. Water temperature too high.
2. Check valve (sold separately)
stuck or installed backwards.
3. Back flow of water from
discharge hose.
1. Do not exceed 131° F (55°C) water temperature.
2. Remove and examine check valve.
3. Install or inspect check valve (sold separately).
Pump does
not shut off
automatically
DISCONNECT POWER
CORDS FIRST TO PREVENT
ACCIDENTAL STARTING.
1. Float Switch stuck.
2. Check valve not installed
properly or functioning.
3. Defective electrical switch.
DISCONNECT POWER CORDS FIRST TO
PREVENT ACCIDENTAL STARTING.
1. Check for free movement of Float Switch. Clear
debris away from beneath Float Switch.
2. Make sure check valve is properly
installed and in working order.
3. Unplug Pump from its electrical outlet. Do not use
until qualified technician checks Pump for damage.
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect power supply before service.

Page 6 For technical questions, please call 1-888-866-5797. Item 56701
Parts List and Diagram
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.
Parts List
Part Description Qty.
1 Cross Flange Screw 2
2 Power Cord 1
2-1 Sheathing Block 1
3 Pin Insertion 1
3-1 Insert 3
4 Ring 1
5 Sealing Bolt 1
6 O-Ring 1
7 Cross Flange Screw 6
8 Spring Washer 10
9 Cross Flange Screw 1
10 Clamp 1
11 Cable Sheath 1
12 Upper Pump Cover 1
13 Screw Assembly 2
14 Capacitor 1
15 Grounding Wire 1
16 O-Ring 1
Part Description Qty.
17 Aluminum Rear Cover 1
18 Corrugated Gasket 1
19 Bearing 2
20 Rotor 1
20-1 Shaft Gear Ring 2
20-2 Motor Shaft 1
21 Stator 1
22 Skeleton Seal Ring 2
23 Motor Housing 1
24 Hex Bolt 3
25 Spring Washer 3
26 Pump Case 1
27 Cross Flange Screw 4
28 Impeller 1
28-1 Insert 1
29 Base 1
30 Float Switch 1
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.

Page 7For technical questions, please call 1-888-866-5797.Item 56701
Assembly Diagram

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 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.
26541 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797