Central Pneumatic 62404 Air Compressor Owner's Manual

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.
REV 16a
9 GAL wheelbarrow
air compressor
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.
Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected]
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© 2014 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.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Table of Contents
Safety ........................................................................2
Maintenance .............................................................14
Specifications ............................................................5
Parts List and Diagram .............................................18
Setup .........................................................................6
Warranty ...................................................................20
SAFETY
Operation ..................................................................10
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.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
SETUp
Addresses practices not related to personal injury.
Symbol
RpM
Hp
property or Statement
Revolutions Per Minute
Horsepower
WARNING marking concerning Risk
of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
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 Explosion.
OpERATION
IMpORTANT SAFETY INFORMATION
General Safety Warnings
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.
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.
Set up precautions
MAINTENANCE
1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
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.
Page 2
4. Set up and use only on a flat, level,
well-ventilated surface.
5. Use only lubricants and fuel recommended
in the engine manual or in the
Specifications chart of this manual.
6. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Engine precautions
Follow engine precautions and instructions in the included engine instruction manual.
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.
11. 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.
SAFETY
Operating precautions
12. 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.
SETUp
13. 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.
14. 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.
2. Keep children away from the equipment,
especially while it is operating.
3. Fire Hazard! Do not fill gas tank while
Compressor 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.
4. Do not touch Compressor engine during
use. Let engine cool down after use.
5. Never store fuel or other flammable
materials near the Compressor engine.
6. Only use a suitable means of transport and
lifting devices with sufficient weight bearing
capacity when transporting the Compressor.
7. Secure the Compressor on transport vehicles to
prevent the tool from rolling, slipping, and tilting.
8. Industrial applications must follow
OSHA requirements.
9. 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.
10. 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.
ITEM 62404
15. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.
16. 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.
17. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.
18. Do not cover the engine or
equipment during operation.
19. Keep the equipment, engine, and
surrounding area clean at all times.
OpERATION
Only use OUTSIDE and far away from windows,
doors, and vents.
20. 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.
21. Do not operate the equipment with known
leaks in the engine’s fuel system.
22. WARNING: 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.)
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 3
MAINTENANCE
NEVER use inside a home or garage, EVEN IF
doors and windows are open.
Operating precautions (cont’d)
SAFETY
23. WARNING: The brass components of this product
contain lead, 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.)
24. 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.
25. Keep hands and feet away from moving parts. Do
not reach over or across equipment while operating.
26. 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.
27. 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.
Service precautions
1. Before service, maintenance, or cleaning:
a. Turn the engine switch to its “OFF” position.
b. Allow the engine to completely cool.
SETUp
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.
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.
OpERATION
Air Compressor Safety Warnings
1. Risk of fire or explosion - Do not spray flammable
liquid in a confined area or towards a hot surface.
Spray area must be well-ventilated. Do not
smoke while spraying or spray where spark or
flame is present. Arcing parts - Keep compressor
at least 20 feet away from explosive vapors,
such as when spraying with a spray gun.
2. Risk of bursting - Do not adjust regulator higher
than maximum stated pressure of attachment.
MAINTENANCE
3. Risk of injury - Do not direct air
stream at people or animals.
4. Do not use to supply breathing air.
5. Do not use the air hose to move the compressor.
6. Drain Tanks daily and after use. Internal
rust causes tank failure and explosion.
7. Add correct amount of compressor oil before
first use and every use. Operating with the
incorrect amount of oil causes permanent
damage and voids warranty. To prevent
damage, do not use with overfilled or low oil.
8. Compressor head gets hot during operation.
Do not touch it or allow children nearby
during or immediately following operation.
9. Release the pressure in the storage
tanks before moving.
10. The use of accessories or attachments not
recommended by the manufacturer may
result in a risk of injury to persons.
11. All air line components, including hoses, pipe,
connectors, filters, etc., must be rated for a minimum
working pressure of 125 PSI, or 150% of the
maximum system pressure, whichever is greater.
SAVE THESE INSTRUCTIONS.
Page 4
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Air Outlet Size
2 Male 1/4" -18 NPT
Air Pressure
Auto Shut-Off @ 135 PSI
Restart @ 105 PSI
Air Tank Capacity
9 Gallons
Air Flow Capacity
9 CFM @ 90 PSI
11 CFM @ 40 PSI
Compressor Oil
Capacity
Compressor Oil Type
Required Rotation
SAE 30W non-detergent
Air Compressor Oil
(Item 68097, sold separately)
Counterclockwise
viewed from PTO
(power takeoff - the output shaft)
Required Engine
Idle Speed
27 oz. (0.8L)
2260 RPM ± 100 RPM
SAFETY
Specifications
Note: Engine specifications are found in the engine manual supplied with this equipment.
Engine Controls
Belt Guard Frame (12) &
Belt Guard Cover (1)
Air Filter (23)
ON/OFF
Switch
Quick Connect (67)
Safety
Valve (68)
1. Belt Guard - The Belt Guard encloses the pulleys and drive belts.
It protects the user from the moving parts and allows the
large pulley to direct cooling air to the Air Pump.
Oil Sight
Glass (48)
Drain Valve
OIL LEVEL
Crankcase (82)
OVERFILL
FULL
2. Oil Sight Glass - The oil sight glass shows proper level of
the oil. Oil level should be at center of Sight Glass.
LOW
3. Tank Drain Valves - The Air Tank Drain Valves allow moisture
to be removed from the tanks to prevent corrosion.
5. Air Outlet - An air hose attaches to this valve.
Air pressure required by tools is set by an air pressure regulator.
6. Air Storage Tanks - The Air Tanks are where air
pressurized by the Air Pump is stored for use.
7. Tank pressure Gauge - The Air Tank Pressure
Gauge displays the air pressure in the tank.
8. pilot Valve - Open the Pilot Valve before starting the engine.
It relieves resistance on the engine to make starting possible.
Rotate the pin so it is vertical to open it. Once the engine is running,
close the Pilot Valve so the Compressor can build up pressure.
ITEM 62404
Oil Sight
Glass (48)
MAINTENANCE
4. Safety Valve - The Safety Valve automatically releases air if the Air
Tank pressure exceeds the preset maximum. In an emergency, the
ring can be pulled to relieve tank air pressure. There is one safety
valve on the pump and one on the pneumatic assembly.
OpERATION
pilot Valve (62)
SETUp
Tank pressure
Gauge (66 & 94)
Opened
pilot Valve
Closed
pilot Valve
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 5
Setup
SAFETY
The emission control system for this Compressor’s Engine is warranted for standards set by the U.S. Environmental
Protection Agency and by the California Air Resources Board (also known as CARB). For warranty information,
refer to the engine manual.
Install the Wheel
1. Position an Axle Washer on each
side of the Tire (57).
3. Attach the Axle and Wheel Assembly
to the frame. Tighten securely.
2. Slide the Front Axle through the
Axle Washers and Wheel.
4. Check the Wheel for proper function.
5. Check the Wheel air pressure, and
fill to no more than 36 PSI.
Install the Handles
1. Insert each of the two Handles into the Handle
Brackets on the side of each Air Tank.
2. Secure each Handle in place using
Bolt (72), Washers. Tighten securely.
3. Install the Handle Grips (76) on each Handle.
4. Recheck all bolts and fasteners
periodically during work to ensure the
assembly remains secure and safe.
SETUp
Air Filter Assembly
To install the Air Filter (23), fit the Filter Connecting
Tube (24) into the Filter. Keeping the Seal (25)
between them, slide the assembly into the hole on
the side of the Cylinder Cap (35). Secure in place
with two Screws (22). See Figure A.
Filter Connecting Tube (24)
Air Filter (23)
Seal (25)
Cylinder Cap (35)
OpERATION
Figure A
MAINTENANCE
Page 6
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Break-In Compressor
a. Make sure the engine is off. Open the air outlet
valve. If the air outlet has a quick coupler
valve, insert a male coupler into it to open it.
b. Check all fluid levels in the engine and pump.
c. Start the engine following the
General Operating Instructions.
d. Let the unit run for 30 minutes. Air will
expel freely through the Coupler.
SAFETY
Break in the new Air Compressor as follows:
e. Turn OFF the engine.
f. Remove the male coupler.
Connection
MAINTENANCE
OpERATION
Note: An in-line shutoff ball valve is an important
safety device because it controls the air supply even
if the air hose is ruptured. The shutoff valve should
be a ball valve because it can be closed quickly.
2. Depending on the tool which you will be
using with this compressor, you may need
to incorporate additional components, such
as an in-line oiler, a filter, or a dryer (all
sold separately). Consult your air tool’s manual
for needed accessories. See Typical Air
Line Setup charts on the following pages.
This is a truckbed compressor, so use
the portable setup as a model.
SETUp
1. Connect a regulator valve, an in-line shut off valve
and a 1/2″ NPT air hose (all sold separately) to
the Quick Coupler. The air hose must be long
enough to reach the work area with enough extra
length to allow free movement while working.
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 7
Description
Non-lubricated
Tools
A
Air Hose
Filter
Regulator
Lubricator (optional)
Coupler and Plug
Leader Hose (optional)
Air Cleaner / Dryer (optional)
Air Adjusting Valve (optional)
MAINTENANCE
A
B
C
D
E
F
G
H
OpERATION
Lubricated
Tools
B
B
C
C
A
A
E
E
F
H
Connects air to tool
Prevents dirt and condensation from damaging tool or work piece
Adjusts air pressure to tool
For air tool lubrication
Provides quick connection and release
Increases coupler life
Prevents water vapor from damaging work piece
For fine tuning airflow at tool
G
D
Function
SETUp
Figure B: portable Air Supply Setup
SAFETY
Page 8
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 9
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
B
A
F
Description
F
E
OpERATION
I
I
J
N
K
J
H
Function
H
L
L
M
O
SETUp
SAFETY
For noise and vibration reduction
Secures air compressor in place
Isolates sections of system for maintenance
For vibration reduction
Distributes air to branch lines
To drain moisture from system
Brings air to point of use
Connects air to tool
Prevents dirt and condensation from damaging tool or work piece
Adjusts air pressure to tool
For air tool lubrication
Provides quick connection and release
Increases coupler life
Prevents water vapor from damaging work piece
For fine tuning airflow at tool
Non-lubricated
Tools
C
C
Vibration Pads
Anchor Bolts
Ball Valve
Isolation Hose
Main Air Line - 3/4″ minimum recommended
Ball Valve
Branch Air Line -1/2″ minimum recommended
Air Hose
Filter
Regulator
Lubricator (optional)
Coupler and Plug
Leader Hose (optional)
Air Cleaner / Dryer (optional)
Air Adjusting Valve (optional)
MAINTENANCE
B
A
C D
G
Lubricated
Tools
Slope
Figure C: Stationary Air Supply Setup
F
Operation
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
Using the Compressor
Inspect Compressor, engine, pump and equipment looking for damaged, loose, and missing parts
before set up and starting. If any problems are found, do not use equipment until fixed properly.
Note: At the beginning of the day’s first use of the Air Compressor, check for air leaks by applying soapy water to
connections while the Air Compressor is pumping and after pressure cut-out. Look for air bubbles. If air bubbles
are present at connections, tighten connections. Do not use the air compressor unless all connections are air tight.
The extra air leaking out will cause the compressor to operate too often, increasing wear on the compressor.
Before starting the Compressor:
SETUp
a.
b.
c.
d.
e.
Follow the Set Up Instructions in the equipment manual to prepare the equipment.
Follow the Set Up Instructions in the Engine manual to prepare the engine.
Inspect all components of the setup. Make sure all nuts and bolts are tight.
Fill the Engine with the proper amount and type of both fuel and oil.
Fill the Compressor pump with compressor oil following
the Maintenance Instructions in this manual.
To Start and Use the Compressor
1. Close the Drain Valves by turning the levers up
so that they are perpendicular to the valve.
1
2. Open the Pilot Valve by rotating it to a vertical position.
2
OpERATION
3. Open the Fuel Valve.
3
MAINTENANCE
Page 10
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Using the Compressor (cont’d)
4. To start a cold engine, move the Choke to the CHOKE
(start/closed) position.
To restart a warm engine, leave the
Choke in the RUN position.
SAFETY
4
5. Turn the Engine Switch to ON.
O
ON
6. Grip the Starter Handle of the Engine loosely and pull
it slowly several times to allow the gasoline to flow into
the Engine’s carburetor. Then pull the Starter Handle
gently until resistance is felt. Allow Cable to retract fully
and then pull it quickly. Repeat until the engine starts.
I
5
SETUp
OFF
ON
6
Note: Do not let the Starter Handle snap back against the
engine. Hold it as it recoils so it doesn't hit the engine.
7. Allow the Engine to run for several seconds.
Then, if the Choke lever is in the CHOKE position,
move the Choke Lever very slowly to its RUN position.
OpERATION
Note: If engine does not start, check engine oil. Engine
will not start with low or no engine oil.
7
Note: Moving the Choke Lever too fast could kill the engine.
8
MAINTENANCE
8. Close the Pilot Valve by rotating
it to a horizontal position.
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 11
Using the Compressor (cont’d)
SAFETY
9. When the Gas Engine is started and running, the
compressor Pump starts compressing air into
the Air Tank. Open the in-line Shutoff Valve and
adjust the Pressure Regulator (sold separately)
so that the air output is enough to properly
power the tool, but the output will not exceed the
tool’s maximum air pressure at any time. Turn
the knob clockwise to increase the pressure
and counterclockwise to decrease pressure.
Adjust the pressure gradually, while checking
the air output gauge to set the pressure.
9
IMpORTANT: Allow the engine to run for five minutes with no load
after each start-up so that the engine can stabilize.
10. Adjust the Throttle as needed.
11. Break-in period:
a. Breaking-in the engine will help to ensure proper equipment and engine operation.
b. The operational break-in period will last about 3 hours of use. During this period:
SETUp
• Do not apply a heavy load to the equipment.
• Do not operate the engine at its maximum speed.
c. The maintenance break-in period will last about 20 hours of use. After this period:
• Change the engine oil.
Under normal operating conditions subsequent maintenance follows the schedule
explained in the MAINTENANCE AND SERVICING section.
Note: When maximum tank pressure is reached, the compressor automatically disengages, and the engine
RPM drops down to idle speed. The engine remains at idle until Air Tank pressure falls to a preset level.
The Gas Engine will then accelerate and air pressure once again begins to build up in the Air Tank.
Note: As long as the engine is running, the operation of the Air Compressor
is automatic, controlled by an internal pressure switch.
OpERATION
IMpORTANT: The internal pressure switch is not user adjustable; do not make changes to the
air pressure settings of the internal pressure switch. Any change to the automatic pressure
levels may cause excess pressure to accumulate, causing a hazardous situation.
Note: Depressurization - If it is necessary to quickly depressurize the Compressor, turn OFF the engine.
Then, pull on the ring on the tank Safety Valve to release stored air pressure.
12. Use the air tool as needed.
10
MAINTENANCE
Page 12
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Using the Compressor (cont’d)
11
OFF
O
I
SAFETY
13. To stop the engine in an emergency,
turn the Engine Switch off.
Under normal conditions, use the following procedure:
a. Slide the Throttle or Speed Control
Lever to SLOW (the “turtle”).
b. Turn the Engine Switch off.
SETUp
c. Close the Fuel Valve.
WARNING! The fuel valve must be closed before moving
the engine to prevent fuel leakage and fire.
14. Bleed air from the tool, then disconnect the tool.
12
13
OpERATION
15. Open the Drain Valve at the bottom of the Tank,
to release any built-up moisture
and the internal tank pressure.
MAINTENANCE
16. Clean, then store the Air Compressor indoors.
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 13
Maintenance
WARNING
SAFETY
TO pREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the power Switch of the equipment to its “OFF” position, release tank air
pressure, wait for the engine to cool, and disconnect the spark plug cap before
performing any inspection, maintenance, or cleaning procedures.
TO pREVENT SERIOUS INJURY FROM EQUIpMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.
Follow all service instructions in this manual. The engine may fail critically if not serviced properly.
Many maintenance procedures, including any not detailed in this manual, will need to be performed
by a qualified technician for safety. If you have any doubts about your ability to safely service the
equipment or engine, have a qualified technician service the equipment instead.
Compressor pump Oil Maintenance
SETUp
Check oil periodically for clarity. Replace oil if it appears milky or if debris is present, or
every 6 months, or 100 hours of runtime, whichever comes first. In harsh environments such
as high heat or high humidity, you will need to replace the oil more frequently.
Change the compressor oil after the first hour of use to remove any debris.
Adding Oil
OpERATION
1. The oil level should be at the center of the “full”
level on the Oil Sight Glass, as shown above. Add
oil as needed to maintain this level. Do not let the
oil level go below the center dot (LOW as shown
above) and do not overfill the oil so that it is above
the center dot (OVERFILL as shown above) on the
Oil Sight Glass. See “Figure D” on page 14.
OIL LEVEL
Crankcase (82)
OVERFILL
FULL
LOW
Oil Sight
Glass (48)
MAINTENANCE
Figure D
2. To add oil:
a. Remove the Oil Breather (55).
Page 14
b. Using a funnel to avoid spills, pour enough
oil into the pump Crankcase to reach
the “full” level in the Oil Sight Glass.
c. Replace the Oil Plug.
Cold Weather Operation
Premium quality 30-weight, non-detergent air
compressor oil (sold separately) is recommended
for use with this compressor. Start compressor in
heated area if outdoor temperatures drop below
32° F. If this is not practical, drain out the old
pump oil and use SAE 10W Non-detergent Air
Compressor Oil in the pump crankcase instead
whenever the compressor’s temperature will fall
below 40°. Do not use multi-viscosity oil (such
as 10W-30), they leave carbon deposits on pump
components and lead to accelerated failure. Heavy
operation may require heavier viscosity oil.
3. If uncertain which oil to use for this compressor,
please call Harbor Freight Tools customer
service at 1-888-866-5797 for assistance.
WARNING! To prevent serious injury from burns:
Do not add or change the oil while
the compressor is in operation.
Allow the compressor to cool before replacing oil.
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Changing Oil
2. Remove the Oil Plug to allow air flow into the Pump.
3. Remove the Drain Plug, allowing the
oil to drain into the container.
4. When the oil is completely drained from
the Pump, replace the Drain Plug.
5. Fill the Pump with new compressor oil to
the FULL level on the Oil Sight Glass.
6. Replace and tighten the Oil Plug.
SAFETY
1. Place a container under the Drain Plug.
7. Discard the old oil according to local,
state and federal regulations.
Draining Moisture from the Tanks
2. Place a collection pan under the Drain Valves.
4. When all the pressure is released, close the
Drain Valves by pivoting the lever on the
bottom of the compressor so that the lever
is perpendicular to the Drain Valve.
SETUp
1. Make sure the compressor engine is off.
3. Open the Drain Valves by pivoting the lever
on the bottom of the Compressor so the
lever is in line with the Drain Valves.
Air Filter Maintenance
Check the Air Filter weekly to see if it needs
replacement. If working in dirty environments, you may
need to clean the filter more often. To clean the Air Filter:
1. Unthread the Wing Nut holding the
Air Filter Assembly in place.
2. Remove the air filter cover and the
air filter elements and check for dirt.
Clean or replace as described below.
3. Cleaning:
• For “paper” filter elements:
To prevent injury from dust and debris,
wear ANSI-approved safety goggles,
NIOSH-approved dust mask/respirator, and
heavy-duty work gloves. In a well-ventilated
area away from bystanders, use pressurized
air to blow dust out of the air filter.
If this does not get the filter clean, replace it.
• For foam filter elements:
Wash the element in warm water and
mild detergent several times. Rinse.
Squeeze out excess water and allow it to dry
completely. Soak the filter in lightweight oil
briefly, then squeeze out the excess oil.
MAINTENANCE
4. Install the cleaned filter. Secure in
place with the Wing Nut.
OpERATION
The Drain Valves are located under the Tanks.
They must be accessed daily to release all
trapped air and moisture from the Tanks. This
will eliminate condensation which can cause tank
corrosion. To empty the air and condensation:
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 15
Adjusting Belt Tension
1. Remove the Belt Guard Cover (1) and set it aside.
SAFETY
2. Press on the center of the longest
span on each belt with moderate finger
pressure (4-4.5 lb). Then measure the deflection
distance, the distance that the belt moved.
The belt should deflect anywhere from 1/2″ to 1″.
Deflection
Distance
3. If either belt deflects too much, tighten
belts by loosening the four Engine Mounting
Bolts and moving the engine away from the
other pulley slightly by turning the Nut (93)
holding the Brace Rod (91). Secure engine
mounting bolts and retest tension. If either
belt is too long to be properly tensioned, both
belts must be replaced. See Figure E.
Engine Base
Engine
Mounting
Bolts
Brace
Rod (91)
SETUp
Nut (93)
Figure E
4. If either belt deflects too little, loosen belts
by loosening the Bolts on the Bottom Plate and
moving the engine towards the other pulley slightly
by turning the Nut (93) on the Brace Rod (91).
Secure engine mounting bolts and retest tension.
5. Before use, replace belt cover.
OpERATION
MAINTENANCE
Page 16
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
Troubleshooting
possible Causes
Likely Solutions
COMPRESSOR SPECIFIC:
Pilot Valve closed.
COMPRESSOR SPECIFIC:
Open pilot valve before start procedure,
close after unit is running.
1. Incorrect lubrication or
not enough lubrication.
2. Worn parts.
1. Lubricate using recommended oil or
grease according to directions.
2. Have qualified technician inspect internal
mechanism and replace parts as needed.
SAFETY
problem
(Note: See
engine manual
for engine
specific issues.)
SETUp
Severe air
leakage
1. Poor air outlet seal.
1. Tighten or re-attach using thread seal tape.
2. Loose cylinder/cylinder head. 2. Tighten cylinder/cylinder head assembly.
If cylinder/cylinder head cannot tighten
properly, internal parts may be misaligned.
3. Damaged valve or housing.
3. Replace damaged components.
4. Dirty, worn or damaged valve. 4. Clean or replace valve assembly.
1. Low engine idle.
Unit stalls
1. Qualified technician should increase idle to
2,200±100 RPM by adjusting pressure switch.
2. Severely clogged air filter.
2. Replace air filter.
3. Improper lubrication.
3. Check for proper oil level.
4. Defective pilot/unloader valve. 4. Replace pilot valve.
Excessive noise
1. Loose drive pulley
or flywheel.
2. Misaligned pulleys.
3. Lack of oil in crankcase.
4. Worn connecting rod.
5. Worn wrist pin bushing.
6. Worn bearings.
7. Loose belts.
1. Loose pulleys are a common cause of
“knocking”. Tighten appropriate bolts.
2. Align pulleys with straightedge and secure in place.
3. Check for proper oil level.
4. Replace connecting rod.
5. Remove piston assembly and replace necessary parts.
6. Replace bearings and oil.
7. Check for proper belt tension.
1. Wrong type of oil or lowquality oil.
1. Change oil. Check oil recommendations
under EQUIPMENT SET UP, Equipment
Oil Fill section of this manual.
2. See above Excessive Noise section.
3. Clean or replace air filter.
4. Replace piston rings.
5. Drain moisture from the tank daily.
Oil in the
discharge air
2.
3.
4.
5.
Overheating.
Restricted intake air.
Worn piston rings.
Excessive moisture
in the tank.
1. Air leaks.
Low discharge
pressure
2. Leaking valves.
3. Restricted air intake.
4. Blown gaskets.
5. Slipping belts.
1. Listen for escaping air. Apply soap solution
to all fittings and connections. Bubbles will
appear at points of leakage. Tighten or
replace leaking fittings or connections.
2. Remove head and inspect for valve breakage,
weak valves, scored valve plate, etc. Replace
defective parts and reassemble. Replace head
gasket each time the head is removed.
3. Clean or replace air filter element.
4. Replace and gaskets proven faulty on inspection.
5. Tighten Belts (See monthly maintenance.)
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 17
OpERATION
Compressor
overheats
MAINTENANCE
Engine will
not start
parts List and Diagram
parts List
SAFETY
part
SETUp
OpERATION
MAINTENANCE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Description
Belt Guard Cover
Screw M8x20
Screw M8x30
Washer 8
Bushing
Flat Key
Drive Pulley
Driven Pulley
Belt
Flat Washer 6
Bolt M6×12
Belt Guard Frame
Restrictive Block
Pull Block
Crank Shaft
Connecting Rod
Piston
Piston Pin
Closing Ring
Piston Ring
Taper-Face Ring
Screw M8x20
Air Filter
Filter Connecting Tube
Seal
Washer
Socket Head Cap Screw M8x60
Paper Washer
Radiator
Connector
Taper Sleeve
Nut
Brass Tube
Cooling Fins
Cylinder Cap
Gasket
Upper Valve Plate
Metal Gasket
Valve
Lower Valve Plate
Cylinder
Gasket
Bolt M8×60
Washer
Bearing
End Cap Gasket
Oil Breather Cover
Qty
part
1
1
1
2
1
1
1
1
1
16
16
1
1
1
1
2
2
2
4
2
2
4
1
1
1
6
6
1
1
1
2
2
1
1
1
1
1
1
4
1
1
1
4
4
2
2
1
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
Description
Oil Sight Glass
Washer
Seal
Oil Pan
Screwm5x16
Screw M6×16
Spring Washer6
Oil Breather
Engine
Tire
Screw M6×20
Clip
Wheel Supporting Tube
Throttle Control Valve
Pilot Valve
Elbow
Bolt M6×16
Pneumatic Combination
Tank Pressure Gauge
Quick Connecter
Safety Valve
Discharge Tube
Taper Sleeve
3/8 Pipe Nut
Bolt M8x20
Closing Ring
Tank Assy.
Handle
Rubber Handgrip
Screw M6x20
Flat Washer
Rubber Foot
Gasket
Elbow
Crank Case
Oil Seal Ø40mmxØ25mm
O-Ring Ø14.3xØ2.5
Drain Bolt
Crankcase End Cover
Wiper Ring
Bushing
Bolt M8x35
Bolt M8x20
Brace Rod
U Shape Part
Nut M12
Tank Pressure Gauge
Qty
1
1
1
1
14
8
8
1
1
1
2
2
1
1
1
1
4
1
1
2
1
1
2
2
4
2
1
2
2
4
4
4
1
1
1
1
1
1
1
2
1
1
6
1
1
1
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 18
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
ITEM 62404
MAINTENANCE
OpERATION
SETUp
SAFETY
Assembly Diagram
ITEM 62404
For compressor technical questions, please call 1-888-866-5797.
For engine technical questions, please call 1-888-866-5797.
Page 19
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.
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.
3491 Mission Oaks Blvd. • pO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797
www.harborfreight.com
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.
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.
Visit our website at: http://www.harborfreight.com
Email our technical support at: [email protected]
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© 2014 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.
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
19e
Table of Contents
Specifications ............................................. 2
Safety ......................................................... 3
Setup .......................................................... 6
Operation .................................................... 8
Maintenance .............................................. 12
Troubleshooting ......................................... 16
Warranties ................................................. 18
Parts Lists and Diagrams .......................... 20
Specifications
Displacement
Engine Type
Cooling System
Type
Capacity
Fuel
Engine Oil
Type SAE
Capacity
Run Time @ 50% Load
with full tank
Sound Level at 22 feet
Bore x Stroke
Compression Ratio
Rotation viewed from PTO
(power takeoff - the output shaft)
Shaft
Spark Plug
Valve Clearance
Speed
212cc
Horizontal Single Cylinder
4 stroke OHV
Forced air cooled
87+ octane unleaded gasoline
0.9 Gallon (3.6 Liter)
10W-30 above 32° F
5W-30 at 32° F or below
0.5 qt
3 hr.
91 dB
70 mm x 55 mm
8.5:1
Counterclockwise
Shaft
3/4″ x 2.43″
Keyway
3/16″ (4.76 mm)
End Tapped
5/16″ - 24 UNF
Type
NGK® BP-6ES
NHSP® / Torch® F6TC
Gap
Intake
Exhaust
Idle
0.0275″ - 0.0314″
0.0039″ - 0.0059″
0.0059″ - 0.0078″
2260 ± 50 RPM
The emissions 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.
Page 2
For technical questions, please call 1-888-866-5797.
ITEM 62404
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.
SAFETY
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.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
RpM
Hp
property or Statement
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.
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.
OpERATION
Symbol
SETUp
Symbol Definitions
Safety Warnings
WARNING! Read all instructions.
Failure to follow all instructions listed below 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.
MAINTENANCE
SAVE THESE INSTRUCTIONS
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 3
Set up precautions
SAFETY
1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel
or other flammable materials nearby.
4. Set up and use only on a flat, level,
well-ventilated surface.
2. Have multiple ABC class fire extinguishers nearby.
6. Use only lubricants and fuel recommended
in the Specifications chart of this manual.
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.
5. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.
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
SETUp
see or smell.
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.
NEVER use inside a home or garage,
EVEN IF doors and windows are open.
OpERATION
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.
MAINTENANCE
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.
Page 4
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. Use this equipment with both hands
only. Using equipment with only one hand
can easily result in loss of control.
19. 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.
For technical questions, please call 1-888-866-5797.
ITEM 62404
20. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.
25. Do not operate the equipment with known
leaks in the engine’s fuel system.
21. Do not cover the engine or
equipment during operation.
26. 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.
23. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
24. 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.
27. Keep hands and feet away from moving parts. Do
not reach over or across equipment while operating.
28. 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.
29. 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.
Service precautions
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.
7. Store equipment out of the reach of children.
8. Follow scheduled engine and
equipment maintenance.
OpERATION
a. Turn the engine switch to its “OFF” position.
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.
Refueling:
1. Do not refill the fuel tank while the
engine is running or hot.
2. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
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.
MAINTENANCE
1. Before service, maintenance, or cleaning:
SAVE THESE INSTRUCTIONS.
ITEM 62404
SETUp
22. Keep the equipment, engine, and
surrounding area clean at all times.
SAFETY
Operating precautions (cont.)
For technical questions, please call 1-888-866-5797.
Page 5
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
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.
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.
WARNING! DO NOT INSTALL THIS ENGINE ON A VEHICLE.
Engine Controls
SETUp
Air Filter
Fuel Cap
Starter
Handle
OpERATION
Muffler
Oil Drain plug
MAINTENANCE
Throttle
Dipstick
Choke
Fuel Valve
Engine
Switch
Page 6
For technical questions, please call 1-888-866-5797.
ITEM 62404
The fuel system on this engine may be influenced by operation at higher altitudes.
Proper operation can be ensured by installing an altitude kit at altitudes higher than 3000 ft. above sea level.
At elevations above 8000 ft, the engine may experience decreased performance, even with the proper main jet.
Operating this engine without the proper altitude kit installed may increase the engine’s emissions and
decrease fuel economy and performance. The kit should be installed by a qualified mechanic.
WARNING! TO pREVENT SERIOUS INJURY FROM FIRE:
Follow kit procedures in a well-ventilated area away from ignition sources.
If the engine is hot from use, shut the engine off and wait for it to cool before proceeding. Do not smoke.
SAFETY
High Altitude Operation Above 3000 feet
NOTICE Warranty void if necessary adjustments are not made for high altitude use.
High Altitude Kit Installation Instructions
1. Turn off the engine.
3. Place a bowl under the fuel cup to catch any spilled fuel.
4. Unthread the bolt holding the fuel cup.
Fuel Cup Seal
CAUTION! Carburetor bowl may have gas in it
which will leak upon removing the bolt.
Mixing Tube
(might remain
inside carburetor)
5. Remove the bolt, bolt seal, fuel cup, fuel cup seal and main jet
from the body of the carburetor assembly. A carburetor screwdriver
(not included) is needed to remove and install the Main Jet.
SETUp
Carburetor
Assembly
2. Close the fuel valve.
Main Jet
Fuel Cup
6. Replace the main jet with the replacement jet
needed for your altitude range (part 1 or 2).
Bolt Seal
Note: The Fuel cup seal and bolt seal may be damaged during
removal and should be replaced with the new ones from the kit.
OpERATION
Note: The mixing tube is held in place by the main jet and
might fall out when it is removed. If it falls out, replace it in
the same orientation before replacing the main jet.
Bolt
7. Replace the Fuel Cup Seal (4),
fuel cup, Bolt Seal (3) and bolt. Tighten in place.
NOTICE: Do not cross thread Bolt when tightening. Finger tighten first and
then use a wrench to make sure the Bolt is properly threaded.
8. 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.
ITEM 62404
part
Description
Qty
1
Main Jet 3000-6000 ft.
1
2
Main Jet 6000-8000 ft.
1
3
Bolt Seal
1
4
Fuel Cup Seal
1
For technical questions, please call 1-888-866-5797.
MAINTENANCE
Altitude Kit parts List
Page 7
Operation
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
pre-Start Checks
Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting. If any
problems are found, do not use equipment until fixed properly.
Checking and Filling Engine Oil
SETUp
NOTICE: Your Warranty is VOID if the engine’s
crankcase is not properly filled with oil before
each use. Before each use, check the oil level.
Engine will not start with low or no engine oil.
1. Make sure the engine is stopped and is level.
Full level
Full level
2. Close the Fuel Valve.
3. Clean the top of the Dipstick and the area around it.
Remove the Dipstick by turning it counterclockwise,
and wipe it off with a clean, lint free rag.
4. Reinsert the Dipstick without threading it in and
remove it to check the oil level. The oil level
should be up to the full level as shown above.
OpERATION
5. If the oil level is at or below the low mark add the
appropriate type of oil until the oil level is at the
proper level. SAE 10W-30 oil is recommended for
general use. (The SAE Viscosity Grade chart on
page 13 in the Maintenance section shows other
viscosities to use in different average temperatures.)
6. Thread the dipstick back in clockwise.
NOTICE: Do not run the engine with too little oil.
Engine will shut off if engine oil level is too low.
Checking and Filling Fuel
WARNING! TO pREVENT SERIOUS
INJURY FROM FIRE:
Fill the fuel tank in a well-ventilated area
away from ignition sources. If the engine
is hot from use, shut the engine off and
wait for it to cool before adding fuel. Do not smoke.
1. Clean the Fuel Cap and the area around it.
2. Unscrew and remove the Fuel Cap.
MAINTENANCE
3. Remove the Strainer and remove any dirt
and debris. Then replace the Strainer.
Note: Do not use gasoline containing more than
10% ethanol (E10). Do not use E85 ethanol. Add fuel
stabilizer to the gasoline or the Warranty is VOID.
Page 8
Note: Do not use gasoline that has been stored in a
metal fuel container or a dirty fuel container. It can
cause particles to enter the carburetor, affecting
engine performance and/or causing damage.
4. If needed, fill the Fuel Tank to about 1 inch under
the fill neck of the Fuel Tank with 90 octane or
higher unleaded gasoline that has been treated
with a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use.
5. Then replace the Fuel Cap.
6. 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.
For technical questions, please call 1-888-866-5797.
ITEM 62404
Starting the Engine
Before Starting the Engine
SAFETY
Before starting the engine:
a. Follow the Set Up Instructions in the equipment manual to prepare the equipment.
b. Inspect the equipment and engine.
c. Fill the engine with the proper amount and type of
both stabilizer-treated unleaded gasoline and oil.
d. Read the Equipment Operation section in the equipment manual.
Manual Start
1. Close the Drain Valves by turning the levers up
so that they are perpendicular to the valve.
1
SETUp
2. Open the Pilot Valve by rotating it to a vertical position.
2
3. Open the Fuel Valve.
4. To start a cold engine, move the Choke to the
START position.
To restart a warm engine, leave the
Choke in the RUN position.
OpERATION
3
4
MAINTENANCE
START RUN
5. Slide the Throttle or Speed Control Lever to 1/3
away from the SLOW position (the “turtle”).
Note: Some tools have a Speed Control Lever located
elsewhere on the tool which functions the same as the
Throttle. Use the Speed Control Lever in place of the
Throttle when the tool is so equipped.
ITEM 62404
5
For technical questions, please call 1-888-866-5797.
Page 9
Manual Start (cont’d)
6. Turn the Engine Switch on.
O
SAFETY
OFF
ON
ON
I
6
Note: If engine does not start, check engine oil level.
Engine will not start with low or no engine oil.
7. Grip the Starter Handle of the Engine loosely and pull
it slowly several times to allow the gasoline to flow into
the Engine’s carburetor. Then pull the Starter Handle
gently until resistance is felt. Allow Cable to retract fully
and then pull it quickly. Repeat until the engine starts.
7
Note: Do not let the Starter Handle snap back against the engine.
Hold it as it recoils so it doesn't hit the engine.
SETUp
8. Allow the Engine to run for several seconds.
Then, if the Choke Lever is in the START position,
move the Choke Lever very slowly to its RUN position.
8
Note: Moving the Choke Lever too
fast could stall the engine.
START
OpERATION
9. Close the Pilot Valve by rotating it
to a horizontal position.
MAINTENANCE
10. When the Gas Engine is started and running, the
compressor Pump starts compressing air into the Air
Tank. Open the in-line Shutoff Valve and adjust the
Pressure Regulator (sold separately) so that the air
output is enough to properly power the tool, but the
output will not exceed the tool’s maximum air pressure
at any time. Turn the knob clockwise to increase the
pressure and counterclockwise to decrease pressure.
Adjust the pressure gradually, while checking
the air output gauge to set the pressure.
Page 10
RUN
9
10
For technical questions, please call 1-888-866-5797.
ITEM 62404
Manual Start (cont’d)
IMpORTANT: Allow the engine to run at no load for five minutes with no
load after each start-up so that the engine can stabilize.
11. Adjust the Throttle as needed.
SAFETY
12. Break-in period:
a. Breaking-in the engine will help to ensure proper equipment and engine operation.
b. The operational break-in period will last about 3 hours of use. During this period:
• Do not apply a heavy load to the equipment.
• Do not operate the engine at its maximum speed.
c. The maintenance break-in period will last about 20 hours of use. After this period:
• Change the engine oil.
Under normal operating conditions subsequent maintenance follows the schedule
explained in the MAINTENANCE AND SERVICING section.
SETUp
Stopping the Engine
1. To stop the engine in an emergency,
turn the Engine Switch off.
OFF
O
I
OpERATION
2. Under normal conditions, use the following procedure:
a. Slide the Throttle or Speed Control
Lever to SLOW (the “turtle”).
b. Turn the Engine Switch off.
c. Close the Fuel Valve.
MAINTENANCE
WARNING! The fuel valve must be closed before moving
the engine to prevent fuel leakage and fire.
NOTICE
See “Long-Term Storage” on page 15 for complete storage instructions.
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 11
Maintenance
WARNING
SAFETY
TO pREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the power Switch of the equipment to its “OFF” position, wait for the engine to cool, and disconnect
the spark plug cap before performing any inspection, maintenance, or cleaning procedures.
TO pREVENT SERIOUS INJURY FROM EQUIpMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.
Follow all service instructions in this manual. The engine may fail critically if not serviced properly.
Many maintenance procedures, including any not detailed in this manual, will need to be
performed by a qualified technician for safety. If you have any doubts about your ability to safely
service the equipment or engine, have a qualified technician service the equipment instead.
Cleaning, Maintenance, and Lubrication Schedule
SETUp
Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if
equipment operates unusually, check systems immediately. The maintenance needs of each piece of equipment
will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors.
Note: The following procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the engine and equipment.
Before
Each Use
procedure
Monthly or
Every 3 mo. or Every 6 mo. or
every 20
50 hr. of use 100 hr. of use
hr. of use
Yearly or
every 300
hr. of use
Every
2 Years
Brush off outside of engine
Check engine oil level
Check air cleaner
Check deposit cup
Change engine oil
OpERATION
*
Clean/replace air cleaner
Check and clean spark plug
1. Check/adjust idle speed
2. Check/adjust valve clearance
3. Clean fuel tank, strainer
and carburetor
**
4. Clean carbon build-up from
combustion chamber
Replace fuel line if necessary
**
**
*Service more frequently when used in dusty areas.
**These items should be serviced by a qualified technician.
MAINTENANCE
Page 12
For technical questions, please call 1-888-866-5797.
ITEM 62404
Checking and Filling Fuel
Engine Oil Change
WARNING! TO pREVENT SERIOUS
INJURY FROM FIRE:
Fill the fuel tank in a well-ventilated area
away from ignition sources. If the engine is
hot from use, shut the engine off and wait
for it to cool before adding fuel. Do not smoke.
CAUTION! Oil is very hot during operation and can
cause burns. Wait for engine to cool before changing oil.
3. Remove the Strainer and remove any dirt
and debris. Then replace the Strainer.
Note: Do not use gasoline containing more than
10% ethanol (E10). Do not use E85 ethanol. Add fuel
stabilizer to the gasoline or the Warranty is VOID.
Note: Do not use gasoline that has been stored in a
metal fuel container or a dirty fuel container. It can
cause particles to enter the carburetor, affecting
engine performance and/or causing damage.
4. If needed, fill the Fuel Tank to about 1 inch under
the fill neck of the Fuel Tank with 90 octane or
higher unleaded gasoline that has been treated
with a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use.
5. Then replace the Fuel Cap.
6. 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.
SAFETY
2. Unscrew and remove the Fuel Cap.
2. Close the Fuel Valve.
3. Place a drain pan (not included) underneath
the crankcase’s drain plug.
4. Remove the drain plug and, if possible,
tilt the crankcase slightly to help drain
the oil out. Recycle used oil.
5. Replace the drain plug and tighten it.
6. Clean the top of the Dipstick and the area around it.
Remove the Dipstick by turning it counterclockwise,
and wipe it off with a clean, lint free rag.
Full level
Full level
7. Add the appropriate type of oil until the oil level is at
the full level. SAE 10W-30 oil is recommended for
general use.
The SAE Viscosity Grade chart shows other
viscosities to use in different average temperatures.
SETUp
1. Clean the Fuel Cap and the area around it.
1. Make sure the engine is stopped and is level.
SAE Viscosity Grades
10W-30
5W-30
-20
0
20
40
60
80
100°F
OpERATION
30
Average outdoor temperature
8. Thread the dipstick back in clockwise.
MAINTENANCE
NOTICE: Do not run the engine with too little oil.
Engine will not start with low or no engine oil.
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 13
Air Filter Element Maintenance
1. Remove the air filter cover and the
air filter elements and check for dirt.
Clean or replace as described below.
2. Cleaning:
SAFETY
• For “paper” filter elements:
To prevent injury from dust and debris,
wear ANSI-approved safety goggles,
NIOSH-approved dust mask/respirator, and
heavy-duty work gloves. In a well-ventilated
area away from bystanders, use pressurized
air to blow dust out of the air filter.
If this does not get the filter clean, replace it.
• For foam filter elements:
Wash the element in warm water and
mild detergent several times. Rinse.
Squeeze out excess water and allow it to dry
completely. Soak the filter in lightweight oil
briefly, then squeeze out the excess oil.
SETUp
3. Install the new filter or the cleaned filter.
Secure the Air Cleaner Cover before use.
Spark plug Maintenance
Spark
plug
Cap
1. Disconnect spark plug cap from end of plug.
Clean out debris from around spark plug.
2. Using a spark plug wrench, remove the spark plug.
3. Inspect the spark plug:
If the electrode is oily, clean it using a clean, dry rag.
If the electrode has deposits on it, polish it using
emery paper. If the white insulator is cracked or
chipped, the spark plug needs to be replaced.
Recommended Spark plugs
NGK®
NHSP® / TORCH®
BP-6ES
F6TC
NOTICE: Using an incorrect spark
plug may damage the engine.
4. When installing a new spark plug, adjust the
plug’s gap to the specification on the Technical
Specifications chart. Do not pry against the
electrode, the spark plug can be damaged.
OpERATION
5. Install the new spark plug or the cleaned spark plug
into the engine. Gasket-style: Finger-tighten until
the gasket contacts the cylinder head, then tighten
about 1/2-2/3 turn more.
Non-gasket-style: Finger-tighten until
the plug contacts the head, then
tighten about 1/16 turn more.
NOTICE: Tighten the spark plug properly.
If loose, the spark plug will cause the engine to
overheat.
If overtightened, the threads in the
engine block will be damaged.
6. Apply dielectric spark plug boot protector
(not included) to the end of the spark
plug and reattach the wire securely.
MAINTENANCE
Page 14
For technical questions, please call 1-888-866-5797.
ITEM 62404
When the equipment is to remain idle for longer than 20
days, prepare the engine for storage as follows:
c. Replace spark plug, but leave
spark plug cap disconnected.
1. CLEANING:
Wait for engine to cool, then clean engine with
dry cloth. NOTICE: Do not clean using water.
The water will gradually enter the engine
and cause rust damage. Apply a thin coat
of rust preventive oil to all metal parts.
d. Pull Starter Handle to distribute oil in cylinder.
Stop after one or two revolutions when you
feel the piston start the compression stroke
(when you start to feel resistance).
To protect the fuel tank during storage, fill the
tank with gasoline that has been treated with
a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use. Refer
to “Checking and Filling Fuel” on page 8.
WARNING! TO pREVENT SERIOUS
INJURY FROM FIRE:
Fill tank in a well-ventilated area away from
ignition sources. If the engine is hot from
use, shut the engine off and wait for it to
cool before adding fuel. Do not smoke.
3. LUBRICATION:
a. Change engine oil.
NOTICE: During extended storage periods the
Engine must be started every 3 months and allowed
to run for 15 – 20 minutes or the Warranty is VOID.
6. STARTING ENGINE DURING/AFTER STORAGE:
Before starting the Engine during or after
storage, keep in mind that untreated gasoline
will deteriorate quickly. Drain the fuel tank and
change to fresh fuel if untreated gasoline has
been sitting for a month, if treated gasoline
has been sitting beyond the fuel stabilizer’s
recommended time period, or if the Engine
does not start. For Engine starting instructions
refer to “Starting the Engine” on page 9.
MAINTENANCE
OpERATION
b. Clean out area around spark plug.
Remove spark plug and pour one tablespoon of
engine oil into cylinder through spark plug hole.
5. STORAGE AREA:
Cover and store in a dry, level, well-ventilated
area out of reach of children. Storage area
should also be away from ignition sources, such
as water heaters, clothes dryers, and furnaces.
SETUp
2. FUEL:
4. BATTERY:
Disconnect battery cables (if equipped).
Recharge batteries monthly while in storage.
SAFETY
Long-Term Storage
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 15
Troubleshooting
problem
Engine will not start
possible Causes
probable Solutions
SAFETY
SETUp
OpERATION
MAINTENANCE
FUEL RELATED:
FUEL RELATED:
1. No fuel in tank or fuel valve closed.
1. Fill fuel tank with fresh 90+ octane stabilizertreated unleaded gasoline and open fuel valve.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Choke not in START position, cold engine.
2. Move Choke to START position.
3. Gasoline with more than 10% ethanol used.
(E15, E20, E85, etc.)
3. Clean out ethanol rich gasoline from fuel
system. Replace components damaged by
ethanol. Use fresh 90+ octane stabilizertreated unleaded gasoline only.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
4. Low quality or deteriorated, old gasoline.
4. Use fresh 87+ octane stabilizer-treated
unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Carburetor not primed.
5. Pull on Starter Handle to prime.
6. Dirty fuel passageways.
6. Clean out passageways using fuel additive.
Heavy deposits may require further cleaning.
7. Carburetor needle stuck.
Fuel can be smelled in the air.
7. Gently tap side of carburetor float
chamber with screwdriver handle.
8. Too much fuel in chamber. This can be
caused by the carburetor needle sticking.
8. Turn Choke to RUN position. Remove
spark plug and pull the start handle several
times to air out the chamber. Reinstall
spark plug and set Choke to START position.
9. Clogged Fuel Filter.
9. Replace Fuel Filter.
IGNITION (SPARK) RELATED:
IGNITION (SPARK) RELATED:
1. Spark plug cap not connected securely.
1. Connect spark plug cap properly.
2. Spark plug electrode wet or dirty.
2. Clean spark plug.
3. Incorrect spark plug gap.
3. Correct spark plug gap.
4. Spark plug cap broken.
4. Replace spark plug cap.
5. Incorrect spark timing or
faulty ignition system.
5. Have qualified technician diagnose/
repair ignition system.
COMPRESSION RELATED:
COMPRESSION RELATED:
1. Cylinder not lubricated.
Problem after long storage periods.
1. Pour tablespoon of oil into spark plug hole.
Crank engine a few times and try to start again.
2. Loose or broken spark plug.
(Hissing noise will occur
when trying to start.)
2. Tighten spark plug.
If that does not work, replace spark plug.
If problem persists, may have head
gasket problem, see #3.
3. Loose cylinder head or damaged
head gasket. (Hissing noise will
occur when trying to start.)
3. Tighten head.
If that does not remedy problem,
replace head gasket.
4. Engine valves or tappets
mis-adjusted or stuck.
4. Have qualified technician adjust/
repair valves and tappets.
ENGINE OIL RELATED:
ENGINE OIL RELATED:
1. Low engine oil.
1. Fill engine oil to proper level.
Check engine oil before EVERY use.
2. Engine mounted on slope,
triggering low oil shutdown.
2. Operate engine on level surface.
Check engine oil level.
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
Page 16
For technical questions, please call 1-888-866-5797.
ITEM 62404
1. Spark plug cap loose.
1. Check cap and wire connections.
2. Incorrect spark plug gap or
damaged spark plug.
2. Re-gap or replace spark plug.
3. Defective spark plug cap.
3. Replace spark plug cap.
4. Old or low quality gasoline.
4. Use only fresh 90+ octane stabilizer-treated
unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Incorrect compression.
5. Diagnose and repair compression.
(Use Engine will not start:
COMpRESSION RELATED section.)
1. Fuel tank empty or full of impure or low
quality gasoline.
1. Fill fuel tank with fresh 90+ octane stabilizertreated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Low oil shutdown.
2. Fill engine oil to proper level.
Check engine oil before EVERY use.
3. Defective fuel tank cap creating vacuum,
preventing proper fuel flow.
3. Test/replace fuel tank cap.
4. Faulty magneto.
4. Have qualified technician service magneto.
5. Disconnected or improperly
connected spark plug cap.
5. Secure spark plug cap.
Engine stops when
under heavy load
1. Dirty air filter
1. Clean element.
2. Engine running cold.
2. Allow engine to warm up prior
to operating equipment.
Engine knocks
1. Old or low quality gasoline.
1. Fill fuel tank with fresh 90+ octane stabilizertreated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Engine overloaded.
2. Do not exceed equipment’s load rating.
3. Incorrect spark timing, deposit buildup,
worn engine, or other mechanical problems.
3. Have qualified technician diagnose
and service engine.
1. Impure or low quality gasoline.
1. Fill fuel tank with fresh 90+ octane stabilizertreated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Engine too cold.
2. Use cold weather fuel and oil additives
to prevent backfiring.
3. Intake valve stuck or overheated engine.
3. Have qualified technician diagnose
and service engine.
4. Incorrect timing.
4. Check engine timing.
Engine stops
suddenly
Engine backfires
After sudden
impact, engine will
run, but equipment
will not operate
Shaft key or other shear pin
broken by impact to disconnect
engine and limit damage.
SAFETY
probable Solutions
SETUp
Engine misfires
possible Causes
OpERATION
problem
Have qualified technician check and replace
broken shaft key or other shear pins.
MAINTENANCE
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 17
Warranties
Limited 90 Day Warranty (Retail)
SAFETY
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, EXCEPT FOR THE EMISSIONS CONTROL SYSTEM WARRANTY BELOW.
SETUp
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.
Emissions Control System Warranty
Harbor Freight Tools (HFT) is pleased to explain the emissions control system warranty on your Small Off-Road
Engine produced after January 1, 2019 (engine), in addition to the Retail Warranty above. HFT warrants that the
emissions control system on your engine is designed, built, and equipped so that it conforms to the United States
Environmental Protections Agency’s (EPA) emissions requirements in effect at the time of manufacture. HFT also
warrants that the emissions control system on your engine will be free from defects in material and workmanship for
two (2) years, provided there has been no improper maintenance, misuse, or abuse of your engine.
OpERATION
Your emissions control system may include parts such as the carburetor or fuel-injection system, and the ignition
system. Also included may be hoses, belts, connectors and other emissions-related assemblies.
WHAT WE WILL DO
Where a warrantable condition exists, HFT will repair or replace, at our option, any emissions-related part on
your engine if it becomes defective, malfunctions, or otherwise fails to conform with this warranty under normal use
and service during the two (2) year term of this warranty at no cost to you, including diagnosis, parts and labor. This
warranty applies to the original purchaser and any subsequent owner within the two year warranty period.
WHAT IS COVERED?
The following parts are examples of components of the emissions control system and are covered by this
two (2) year warranty. For a full list of emissions control components covered by this warranty, please see 40 CFR
§1068, Appendix I.
MAINTENANCE
1. Fuel Metering System
a. Carburetor and its internal parts.
b. Fuel pump (if so equipped).
c. Cold start enrichment system.
4. Catalyst System (if so equipped)
a. Exhaust pipe stud.
b. Muffler.
c. Catalytic converter (if so equipped).
2. Air Induction System
a. Intake pipe/manifold.
b. Air cleaner.
5. Miscellaneous Items Used in Above Systems
a. Vacuum, temperature and time sensitive
valves and switches.
b. Hoses, belts, connectors, and assemblies.
3. Ignition System
a. Spark plug.
b. Magneto ignition system.
This warranty does not cover normal maintenance services or replacement of maintenance items such as filters,
oils, or spark plugs.
Page 18
For technical questions, please call 1-888-866-5797.
ITEM 62404
WHAT YOU MUST DO TO OBTAIN WARRANTY SERVICE
MAINTENANCE
OpERATION
SETUp
In order to obtain warranty repair or replacement, you may either (a) contact HFT product support at
1-888-866-5797 or [email protected]; or (b) bring the to your nearest Harbor Freight Tools retail store.
When going to the retail store or contacting product support, you must indicate the specific emissions control part or
defect that you are claiming and the date this was originally purchased. The nearest Harbor Freight Tools retail store
can be found on the internet at http://www.harborfreight.com.
SAFETY
As the engine owner, you are responsible for the performance of the required maintenance listed in your
Owner’s Manual. HFT may deny you warranty coverage if your engine or a part has failed due to abuse (including
failure to follow the fuel use instructions contained in this manual), neglect, improper maintenance, or unapproved
modifications.
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 19
parts Lists and Diagrams
parts List
SAFETY
part
SETUp
OpERATION
MAINTENANCE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Page 20
Description
Gasket, Cylinder Head
Cover Subassembly, Cylinder Head
Gasket, Cylinder Head Cover
Tube, Breather
Bolt
Stud
Stud
Pin
Bolt, Cylinder Head
Plug, Spark
Head Subassembly, Cylinder
Crankcase Subassembly
Sensor, Engine Oil
Gear Asm, Governor
Arm, Governor
Bolt, Drain Plug
Washer, Flat
Bearing, Deep Groove Ball
Seal, Oil
Washer, Flat
Cotter
Bolt
Cover, Crankcase
Gasket, Crankcase
Pin
Dipstick Subassembly, Oil
Plug Subassembly, Engine Oil
Seal, Oil
Bolt
Crankshaft Asm.
Clip, Piston Pin
Piston
Pin, Piston
Rod, Connecting
Primary Ring
Secondary Ring
Ring Set, Oil
Camshaft Asm.
Valve, Exhaust
Valve, Intake
Seat, Valve Spring
Clamp, Valve Lock
Guide, Seal
Spring, Valve
Plate Subassembly, Lifter Stopper
Bolt, Rocker Shaft
Rocker, Valve
Qty
part
1
1
1
1
4
2
2
2
4
1
1
1
1
1
1
2
2
2
1
1
1
2
1
1
2
1
1
1
6
1
2
1
1
1
1
1
1
1
1
1
2
4
2
2
1
2
2
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
Description
Qty
Nut, Valve Adjusting
Nut, Valve Lock
Tappet, Valve
Lifter, Valve
Starter Asm, Recoil
Bolt
Shroud
Bolt
Shroud, Cylinder Body
Bolt
Shield,Lower
Bolt
Protector, Oil
Collar
Switch Subassembly, Stop Engine
Gasket, Carburetor Insulator
Plate, Carburetor Insulator
Gasket, Carburetor
Gasket, Air Cleaner
Nut
Cleaner, Air
Gasket, Exhaust Outlet
Nut
Muffler Asm.
Tank, Fuel
Strainer, Fuel
Cover, Fuel Tank
Outlet Subassembly, Fuel Tank Oil
Collar
Tube, Fuel
Jacket, Rubber
Nut
Nut, Flywheel
Pulley, Starter
Impeller
Flywheel Subassembly
Bolt
Coil, Ignition
Support Subassembly, Governor
Nut
Bolt, Governor Support
Spring, Governor
Rod, Governor
Spring, Throttle Valve Returning
Control Asm, Throttle
Bolt
For technical questions, please call 1-888-866-5797.
2
2
2
2
1
1
1
4
1
2
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
2
ITEM 62404
SAFETY
9
9
10
69
7
71
7
29
29
29
27
29
35 36 37
1
29
29
31
8
8
28
23
32
18
31
26
25
24
47
47
34
49 48
49 48
33
51
46
46
50
45
38
43 4 2
4 2 39
50
43
4 1 44
4 1 44
51
25
SETUp
70
3
6
30
22
40
22
91
93
13
90
14
92
89
93
88
18
16
17
15
21
86 87
67
68
67
20
78
19
85
75
84
84
76
77
17
83
79
16
79
82
57
72
81
57
80
58
56
73
52
74
61
55
59
Note: If product has no serial number,
record month and year of purchase instead.
Record product’s Serial Number Here:
12
OpERATION
70
2
9
11
6
67
66
60
54
55
MAINTENANCE
5
4
9
Assembly Diagram
5
5
5
63
64
65
Note: Some parts are listed and shown
for illustration purposes only, and are not
available individually as replacement parts.
53
62
55
55
53
53
55
Page 21
For technical questions, please call 1-888-866-5797.
ITEM 62404
Mounting Hole Diagram
6.38 in. / 162mm
2.6 in. / 66mm
3.17 in. / 80.5mm
2.97 in. / 75.5mm
1.6 in. / 40.5mm
SAFETY
SETUp
OpERATION
MAINTENANCE
Page 22
For technical questions, please call 1-888-866-5797.
ITEM 62404
power Take-Off Diagram
2.43 in. / 61.7mm
5/16-24UNF
Ø3.625 in. / 92mm
SETUp
Not to scale.
MAINTENANCE
OpERATION
Note:
4.17 in. / 106mm
4x5/16-24UNF
Ø0.75 in. / 19.05mm
0.64 in.
/ 16.36mm
0.1875 in. / 4.78mm
SAFETY
0.67 in.
/ 17mm
5/16-24UNF
1.79 in. / 45.5mm
ITEM 62404
For technical questions, please call 1-888-866-5797.
Page 23
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.
26541 Agoura Road • Calabasas, CA 91302 • 1-888-866-5797