Harbor Freight Tools 69747 Owner's Manual
Table of Contents
Specifications ............................................. 2
Safety ......................................................... 3
Setup .......................................................... 6
SAFETY OPERATION MAINTENANCESETUP
Operation ................................................... 10
Specifications
Pump
Suction & Discharge Size 1" NPT
Discharge Capacity 37 GPM
Maximum Discharge Head 105 ft.
Maximum Suction Head 26 ft.
Maximum Pressure 45.5 PSI
Mechanical Seal Ceramic
Included Accessories
Engine
Displacement 79cc
Engine Type
Cooling System Forced air cooled
Fuel
Engine Oil
Run Time @ 50% Load with full tank 3 hr.
Sound Level at 22 feet 98 dB
Bore x Stroke 52 mm x 37 mm
Compression Ratio 5.6:1
Rotation viewed from PTO
(power takeoff - the output shaft)
Shaft
Spark Plug
Valve Clearance
No Load Speed 3,800 RPM±100RPM
Maintenance .............................................. 14
Troubleshooting ......................................... 18
Warranties ................................................. 23
Parts Lists and Diagrams .......................... 20
Intake Strainer, Hose Clamps,
Spark Plug Wrench
Horizontal Single Cylinder 4 stroke OHV
EPA phase III compliant
Type 87+ octane unleaded gasoline
Capacity 0.4 Gallons / 1.4 Liters
Type SAE
Capacity 0.3 Quarts / 0.3 Liters
Shaft 15mm x 31mm
End Tapped M10 x 1.25-6h outside thread
Type Torch
Gap 0.7 - 0.8 mm
Intake 0.10 - 0.20 mm
Exhaust 0.15 - 0.25 mm
10W-30 above 32° F
5W30 at 32° F or below
Counterclockwise
®
E5TC
Discharge Head (ft.)
Flow (Gallons/minute)
Page 2 For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
ITEM 69747
WARNING SYMBOLS AND DEFINITIONS
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.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Symbol Definitions
Symbol Property or Statement
RPM
HP
Revolutions Per Minute
Horsepower
WARNING marking concerning
Risk of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
Read the manual before set-up and/or use.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
Symbol Property or Statement
WARNING marking concerning
Risk of Respiratory Injury.
Operate engine OUTSIDE and far away
from windows, doors, and vents.
WARNING marking concerning
Risk of Fire while handling fuel.
Do not smoke while handling fuel.
WARNING marking concerning
Risk of Fire.
Do not refuel while operating.
Keep flammable objects away from engine.
WARNING marking concerning
Risk of Explosion.
SAFETYOPERATIONMAINTENANCE SETUP
Safety Warnings
WARNING! Read all instructions.
Failure to follow all instructions may result in fire, serious injury and/or DEATH.
The warnings and precautions discussed in this 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.
ITEM 69747
SAVE THESE INSTRUCTIONS
Page 3For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
Set up Precautions
1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
SAFETY OPERATION MAINTENANCESETUP
or other flammable materials nearby.
2. Have multiple ABC class fire extinguishers nearby.
3. Operation of this equipment may create sparks
that can start fires around dry vegetation. A spark
arrestor may be required. The operator should
contact local fire agencies for laws or regulations
relating to fire prevention requirements.
Operating Precautions
1. CARBON MONOXIDE HAZARD
Using an engine indoors CAN KILL
YOU IN MINUTES.
Engine exhaust contains carbon
monoxide. This is a poison you cannot
see or smell.
NEVER use inside a home or garage,
EVEN IF doors and windows are open.
Only use OUTSIDE and far away from windows,
doors, and vents.
2. Keep children away from the equipment,
especially while it is operating.
3. Keep all spectators at least six feet
from the Engine during operation.
4. Fire Hazard! Do not fill gas tank while engine is
running. Do not operate if gasoline has been spilled.
Clean spilled gasoline before starting engine.
Do not operate near pilot light or open flame.
5. Do not touch engine during use.
Let engine cool down after use.
6. Never store fuel or other flammable
materials near the engine.
7. Only use a suitable means of transport and
lifting devices with sufficient weight bearing
capacity when transporting the Engine.
8. Secure the Engine on transport vehicles to
prevent the tool from rolling, slipping, and tilting.
9. Industrial applications must follow
OSHA requirements.
4. Set up and use only on a flat, level,
well-ventilated surface.
5. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.
6. Use only lubricants and fuel recommended
in the Specifications chart of this manual.
10. Do not leave the equipment unattended when it is
running. Turn off the equipment (and remove safety
keys, if available) before leaving the work area.
11. Engine can produce high noise levels.
Prolonged exposure to noise levels
above 85 dBA is hazardous to hearing.
Always wear ear protection when operating or
working around the gas engine while it is operating.
12. Wear ANSI-approved safety glasses, hearing
protection, and NIOSH-approved dust mask/
respirator under a full face shield along
with steel-toed work boots during use.
13. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to a heart pacemaker could cause
pacemaker interference or pacemaker failure.
Caution is necessary when near the
engine’s magneto or recoil starter.
14. Use only accessories that are recommended
by Harbor Freight Tools for your model.
Accessories that may be suitable for one
piece of equipment may become hazardous
when used on another piece of equipment.
15. Do not operate in explosive atmospheres,
such as in the presence of flammable
liquids, gases, or dust. Gasoline-powered
engines may ignite the dust or fumes.
16. Stay alert, watch what you are doing and
use common sense when operating this
piece of equipment. Do not use this piece of
equipment while tired or under the influence
of drugs, alcohol or medication.
17. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.
18. Dress properly. Do not wear loose clothing or
jewelry. Keep hair, clothing and gloves away
from moving parts. Loose clothes, jewelry or
long hair can be caught in moving parts.
19. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.
20. Do not cover the engine or
equipment during operation.
Page 4 For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
ITEM 69747
Operating Precautions (cont.)
21. Keep the equipment, engine, and
surrounding area clean at all times.
22. Use the equipment, accessories, etc., in accordance
with these instructions and in the manner intended for
the particular type of equipment, taking into account
the working conditions and the work to be performed.
Use of the equipment for operations different from
those intended could result in a hazardous situation.
23. Do not operate the equipment with known
leaks in the engine’s fuel system.
24. This product contains or, when used, produces a
chemical known to the State of California to cause
cancer and birth defects or other reproductive harm.
(California Health & Safety Code § 25249.5, et seq.)
Service Precautions
1. Before service, maintenance, or cleaning:
a. Turn the engine switch to its “OFF” position.
b. Allow the engine to completely cool.
c. Then, remove the spark plug
cap from the spark plug.
2. Keep all safety guards in place and in
proper working order. Safety guards include
muffler, air cleaner, mechanical guards,
and heat shields, among other guards.
3. Do not alter or adjust any part of the
equipment or its engine that is sealed by the
manufacturer or distributor. Only a qualified
service technician may adjust parts that may
increase or decrease governed engine speed.
4. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during service.
5. Maintain labels and nameplates on the equipment.
These carry important information.
If unreadable or missing, contact
Harbor Freight Tools for a replacement.
25. When spills of fuel or oil occur, they must be
cleaned up immediately. Dispose of fluids and
cleaning materials as per any local, state, or
federal codes and regulations. Store oil rags in
a bottom-ventilated, covered, metal container.
26. Keep hands and feet away from moving parts. Do
not reach over or across equipment while operating.
27. Before use, check for misalignment or binding of
moving parts, breakage of parts, and any other
condition that may affect the equipment’s operation.
If damaged, have the equipment serviced
before using. Many accidents are caused
by poorly maintained equipment.
28. Use the correct equipment for the application.
Do not modify the equipment and do not use the
equipment for a purpose for which it is not intended.
6. Have the equipment serviced by a qualified repair
person using only identical replacement parts.
This will ensure that the safety of the equipment
is maintained. Do not attempt any service or
maintenance procedures not explained in this
manual or any procedures that you are uncertain
about your ability to perform safely or correctly.
7. Store equipment out of the reach of children.
8. Follow scheduled engine and
equipment maintenance.
Refueling:
1. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
2. Do not refill the fuel tank while the
engine is running or hot.
3. Do not fill fuel tank to the top. Leave a little
room for the fuel to expand as needed.
4. Refuel in a well-ventilated area only.
5. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.
SAFETYOPERATIONMAINTENANCE SETUP
ITEM 69747
SAVE THESE INSTRUCTIONS.
Page 5For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
Set Up
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.
SAFETY OPERATION MAINTENANCESETUP
TO PREVENT SERIOUS INJURY:
Operate only with proper spark arrestor installed.
Operation of this equipment may create sparks that
can start fires around dry vegetation.
A spark arrestor may be required.
The operator should contact local fire
agencies for laws or regulations relating
to fire prevention requirements.
Controls
Priming Cap
Discharge Port
At high altitudes, the engine’s carburetor, governor
(if so equipped), and any other parts that control
the fuel-air ratio will need to be adjusted by a
qualified mechanic to allow efficient high-altitude
use and to prevent damage to the engine and
any other devices used with this product.
The emission control system for this Engine
is warranted for standards set by the
U.S. Environmental Protection Agency. For warranty
information, refer to the last pages of this manual.
Intake Port
Water Drain Plug
Throttle
Air Filter
Fuel Tank Cap
Muffler
Fuel Tank
Choke
Starter Handle
Engine Switch
Oil Dipstick
Page 6 For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
ITEM 69747
Connecting Hoses
Note: Hose coupling components
and hoses not included.
Note: The Suction Hose (not included)
MUST be reinforced with braided material or
have non-collapsible construction. Do not use
a hose with an inside diameter smaller than 1"
(pump’s intake and discharge port diameters).
NOTICE: Do not over-tighten Hose Clamps as the
clamp may damage the hose or other components.
1. Slide one of the Hose Coupling Rings over
one of the Hose Couplers (a), then place a
Gasket on the end of the Hose Coupler (b).
Gasket
Hose Coupler
b
Hose Coupling Ring
3. Slide one of the Hose Clamps over the end of the
suction hose (a). Slide the Hose onto the Hose
Coupler (b). Use a screwdriver (not included)
to tighten the Hose Clamp until secure.
CAUTION: Use only a non-collapsible intake hose.
SAFETYOPERATIONMAINTENANCE SETUP
Hose Clamp
Suction Hose
a
b
a
Thread the Hose Coupling Ring onto
2.
the Intake Port (a), and turn clockwise
until fastened securely (b).
Intake Port
a
4. Slide the threaded Hose Coupler onto the Intake
Strainer and thread it securely in place, turning
clockwise (a and b). Slide a Hose Clamp over
the end of the suction hose (c). Slide the Intake
Strainer into the end of the suction hose (d). Use a
screwdriver to tighten the Hose Clamp until secure.
b
b
a
Intake Strainer
ITEM 69747
Page 7For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
5. For the discharge hose, slide a Hose Coupling
Ring over the remaining Hose Coupler (a)
and place a Gasket onto the end of the
Hose Coupler (b) (all not included).
7. Slide a Hose Clamp over the end of the
Discharge Hose (a). Slide the Discharge Hose
onto the Hose Coupler (b). Use a screwdriver
to tighten the Hose Clamp until secure.
a
SAFETY OPERATION MAINTENANCESETUP
6. Thread the Hose Coupling Ring clockwise onto
the Discharge Port until tightened securely.
Discharge Port
b
b
a
Page 8 For Pump technical questions, please call 1-800-444-3353.
For Engine technical questions, please call 1-800-520-0882.
ITEM 69747
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