145 PSI 3 HP TwIn CylInder
AIr ComPreSSor PumP
model 67697
SeT uP And oPerATIng InSTruCTIonS
wArnIng
To prevent serious injury and
death from improper installation:
ONLY a qualified engineer with
appropriate certifications may attempt
designing a new compressor to ensure
that all required safety and control
elements are in place and will work
together properly and safely. This
compressor pump is intended ONLY
as a replacement for a similarly rated
pump on an existing compressor that
includes all other needed components.
Constructing a new compressor
using this pump is not covered by the
manual.
Visit our website at: http://www.harborfreight.com
read this material before using this product.
Failure to do so can result in serious injury.
SAVe THIS mAnuAl.
©
®
Copyright 2010 by Harbor Freight Tools . All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of
Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for
assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
manual revised 10h
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noTICe is used to
address practices not
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.
related to personal injury.
CAuTIon, without the
safety alert symbol, is
used to address practices not
related to personal injury.
general Compressor 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.
ImPorTAnT SAFeTy
InFormATIon
In this manual, on the labeling, and
all other information provided with
this product:
Save all warnings and instructions
for future reference.
1. work area safety
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.
a. keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b. do not operate the Compressor
Pump in explosive atmospheres,
such as in the presence of flammable
liquids, gases or dust. Compressor
pump motors produce sparks which
may ignite the dust or fumes.
dAnger indicates a
hazardous situation
which, if not avoided, will result
in death or serious injury.
c. keep children and bystanders away
from an operating compressor pump.
2. Personal safety
wArnIng indicates a
hazardous situation
which, if not avoided, could
result in death or serious injury.
a. Stay alert, watch what you are
doing and use common sense when
operating this compressor pump. do
not use this compressor pump while
you are tired or under the influence
of drugs, alcohol or medication. A
moment of inattention while operating a
compressor pump may result in serious
personal injury.
CAuTIon, used with
the safety alert
symbol, indicates a hazardous
situation which, if not avoided,
could result in minor or moderate
injury.
b. use personal protective equipment.
Always wear AnSI-approved eye
protection during setup and use.
Safety equipment such as a dust mask,
SKU 67697
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non-skid safety shoes, hard hat, or
hearing protection used for appropriate
conditions will reduce personal injuries.
using only identical replacement
parts. This will ensure that the safety of
the compressor pump is maintained.
3. Compressor Pump use and care
Compressor Pump
Safety warnings
a. disconnect the plug of the
compressor from the power source
before making any adjustments,
changing accessories, or storing the
compressor pump. Such preventive
safety measures reduce the risk of
starting the unit accidentally.
1. Wear ANSI-approved safety goggles
during use.
2. Install pulley and belt safety guard before
use.
3. Before first and every use, verify
b. Store an idle compressor pump
out of the reach of children and
do not allow persons unfamiliar
with the compressor pump or
these instructions to operate it. A
compressor pump is dangerous in the
hands of untrained users.
Pump has sufficient oil.
4. The use of accessories or attachments
not recommended by the manufacturer
may result in a risk of injury to persons.
5. misalignment between motor and
Pump can damage the belt wheel.
Use a straight edge, such as a yardstick,
to check and adjust alignment as
needed.
c. maintain the compressor pump.
keep the compressor pump clean
for better and safer performance.
Follow instructions for lubricating
and changing accessories. keep
the outside surfaces dry, clean and
free from oil and grease. Check for
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
compressor’s operation. If damaged,
have the compressor repaired before
use. Many accidents are caused by a
poorly maintained compressor pump.
6. use proper size motor and motor
pulley. This air compressor Pump must
be installed with a 3 HP electric motor
and pulley (both not supplied) which can
turn the Air Compressor Belt Wheel at
approximately 655 rpm.
7. Install motor, pulley belt and pulley
belt cover securely. Be sure to use the
proper size bolts to install your motor
(not included). The belt and belt cover
(not included) must be strong enough to
prevent breaking and possible injury.
d. use the compressor pump in
accordance with these instructions,
taking into account the working
conditions and the work to be
performed. Use of the compressor
pump for operations different from those
intended could result in a hazardous
situation.
8. be sure all equipment is rated to the
appropriate capacity of this pump.
Make sure that the lowest rated piece
of equipment you are using can handle
the maximum pressure of the Air
Compressor Pump (see Specifications).
4. Service
a. Have your compressor pump
9. do not direct the air outlet at any
person or animal.
serviced by a qualified repair person
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10. use Safety guard for Pulleys. The Air
Compressor Pump Pulley (59), V-belt
(not supplied), and motor pulley (not
supplied) must be covered by a safety
guard (not supplied) covering all moving
elements before operation.
9. Do not remove the valve cover or adjust
internal components.
10. Compressor head gets hot during
operation. Do not touch it or allow
children nearby during or immediately
following operation.
11. Avoid burns. The Cylinder (39), Cylinder
Head (3) and Air Outlet components
become very hot during operation. Do
not touch.
11. Do not use the air hose to move the
compressor.
12. Release the pressure in the storage tank
before moving.
Air Compressor Safety warnings
13. The use of accessories or attachments
not recommended by the manufacturer
may result in a risk of injury to persons.
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.
14. All air line components, including hoses,
pipe, connectors, filters, etc., must be
rated for a minimum working pressure
of 150 PSI, or 150% of the maximum
system pressure, whichever is greater.
15. USE OF AN EXTENSION CORD IS NOT
RECOMMENDED. If you choose to
use an extension cord, use the following
guidelines:
2. risk of bursting - do not adjust
regulator higher than marked
maximum pressure of attachment.
reCommended mInImum wIre
gAuge For eXTenSIon CordS
3. risk of injury - do not direct air
stream at people or animals.
(120 VolT)
eXTenSIon Cord
lengTH
nAmePlATe
AmPereS
(at full load)
4. do not use to supply breathing air.
25’
50’ 100’ 150’
5. do not leave compressor unattended
for an extended period while plugged
in. unplug compressor after working.
0 – 6
18
18
16
14
16
16
16
12
16
14
6.1 – 10
do not use.
do not use.
do not use.
10.1 – 12
12.1 – 16
TAble A
6. keep compressor well-ventilated. do
not cover compressor during use.
7. Drain compressor tank daily and after
use. Internal rust causes tank failure
and explosion.
a. Make sure your extension cord is in
good condition.
b. Be sure to use an extension cord
which is heavy enough to carry the
current your product will draw. An
undersized cord will cause a drop in line
voltage resulting in loss of power and
8. Add correct amount of compressor
oil before first use and every use.
Operating with low or no oil causes
permanent damage and voids warranty.
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overheating. Table A shows the correct 23. The warnings, precautions, and
size to use depending on cord length
and nameplate ampere rating. If in
doubt, use the next heavier gauge. The
smaller the gauge number, the heavier
the cord.
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.
16. Industrial applications must follow OSHA
guidelines.
17. Maintain labels and nameplates on the
compressor. These carry important
safety information. If unreadable or
missing, contact Harbor Freight Tools for
a replacement.
SAVe THeSe
InSTruCTIonS.
groundIng
18. This product is not a toy. Keep it out of
reach of children.
To PreVenT
eleCTrIC SHoCk
And deATH From InCorreCT
groundIng wIre
19. Operate unit on level surface. Check
oil level daily and fill to marked level if
needed.
ConneCTIon:
Check with a qualified electrician
if you are in doubt as to whether
the outlet is properly grounded.
do not modify the power cord
plug provided with the
compressor. never remove the
grounding prong from the plug.
do not use the compressor if the
power cord or plug is damaged.
If damaged, have it repaired by a
service facility before use. If the
plug will not fit the outlet, have a
proper outlet installed by a
qualified electrician.
20. People with pacemakers should
consult their physician(s) before use.
Electromagnetic fields in close proximity
to heart pacemaker could cause
pacemaker interference or pacemaker
failure.
21. WARNING: The brass components of
this product contain lead, a chemical
known to the State of California to cause
birth defects (or other reproductive
harm). (California Health & Safety code
§ 25249.5, et seq.).
22. By supplying this air compressor
pump, Harbor Freight Tools makes
no representations and accepts no
responsibility for the motor, V-belt,
enclosure or mounting surface not
supplied by HFT which may be used
in the installation. You are strongly
advised to have this pump properly
installed by a qualified service technician
using appropriate components in good
condition.
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Symbology
SPeCIFICATIonS
Pounds per square inch of
pressure
PSI
CFm
SCFm
nPT
Single Stage Twin Cylinder;
Oil Lube Pump
Compressor Type
Required HP
Cubic Feet per Minute flow
3 HP motor
Rated Air Pressure 145 PSI
Cubic Feet per Minute flow at
standard conditions
Maximum Speed
Outlet
1050 RPM
3/4” - 16UNF
National pipe thread, tapered
National pipe thread, straight
Double Insulated
Air Delivery
(@ 655 RPM)*
6.5 SCFM @ 40 PSI
5.1 SCFM @ 90 PSI
nPS
Air Delivery
(@ 1050 RPM)*
11.1 SCFM @ 40 PSI
10 SCFM @ 90 PSI
Splash Type with Oil Level
Window
Lubrication
Oil Type
SAE 30W non-detergent Air
Compressor Oil
(Sold separately)
(SKU 95048)
Canadian Standards Association
Underwriters Laboratories, Inc.
Volts Alternating Current
Amperes
Pump Pulley
Belt Type
12-1/2” dia. single V-groove
A 1397
V~
A
Mounting Hole
Pattern
5-11/16” x 7-1/4”
(center-to-center)
Recommended
Mounting Bolts
8mm dia, grade 5 or better
14-1/4” L x 10-3/4” W x 12-
5/8” H
Overall Dimensions
Sound Level
7-1/4”
89 dB @ 1m
(including motor noise)
* For most applications it is recommended to
run this unit at the lower RPM.
unPACkIng
mounting Hole Pattern
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon as
possible.
InSTruCTIonS For PuTTIng
InTo uSe
read the enTIre ImPorTAnT
SAFeTy InFormATIon
section at the beginning of this
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manual including all text under
subheadings therein before set up
or use of this product.
Components
View from Oil Sight Glass side
Air Filter Assembly (4)
To PreVenT
SerIouS Injury
Pump Pulley
(59)
From ACCIdenTAl
oPerATIon:
Turn off and disable the motor
before assembling or making any
adjustments to the compressor
pump.
Oil Sight
Glass
(46)
To PreVenT
SerIouS Injury
Oil Drain Plug
Oil Fill Plug
(63)
(48)
And deATH From ImProPer
InSTAllATIon:
Crankcase
(49)
ONLY a qualified engineer with
appropriate certifications may
attempt designing a new
compressor to ensure that all
required safety and control
elements are in place and will
work together properly and
safely. This compressor pump
is intended only as a
Figure 1
View from Pump Pulley side
Assembly
Insert Pump Pulley (59)
with this side facing you.
Crankshaft (51)
replacement for a similarly
rated pump on an existing
compressor that includes all
other needed components.
Constructing a new compressor
using this pump is not covered
by this manual.
Keyway
Woodruff Key (52)
note: For additional information regarding the
parts listed in the following pages, refer
to the Assembly Diagram near the end of
this manual.
Washer (60)
Spring Washer (61)
Bolt (62)
Figure 2
1. Place a small amount of grease in the
slot at the tapered end of the Crankshaft
(51) and insert the Woodruff Key (52)
into the slot.
2. Make sure that the center hole and the
keyway on the Pump Pulley (59) are
clean and free of burrs and rough edges.
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3. Apply a thin layer of grease to the hole
and keyway, then, with the indented side
of the Pulley center facing you, align
the keyway with the Woodruff Key (52)
and slide the Pump Pulley (59) over the
Crankshaft.
Pump Pulley
Motor Pulley
wArnIng! do not force or hammer the
Pump Pulley onto the Crankshaft.
Calculation for motor Pulley:
8,187.5
motor
Pulley
dia.
(12.5” Pump Pulley dia. x 655 Pump rPm)
4. Slide the Spring Washer (61) and
Washer (60) onto the Bolt (62) and insert
the Bolt through Pump Pulley and thread
into the Crankshaft. Tighten using a
wrench (not included).
=
motor rPm
To calculate the motor and motor pulley
needed to power the pump, multiply the
Pump Pulley diameter (12.5”) times the
pump working RPM (655), then divide by
the engine RPM. This will determine the
motor pulley diameter (in inches) needed
to run the unit.
note: The bolt is a left-hand thread. To
fasten, turn bolt counterclockwise.
Installation
For example: If you have a 1725 RPM
motor, to calculate the pulley diameter
needed, multiply 12.5 x 655, then divide
by 1725, which equals the motor pulley
size of 4.75”. Use the pulley size closest
to this figure.
note: depending on your level of
expertise, you may wish to have a
qualified technician perform this
installation.
CAuTIon: Avoid damage to the Air
Compressor Pump and other equipment.
The Compressor Pump mounting
8,187.5
4.75”
=
1725
platform should be flat, level, and strong
enough to support the combined weight
of the Pump, electric motor or engine,
and related hardware and equipment. It
must also be capable of withstanding the
vibration and tension of the drive belts. It
must incorporate easy access to the Oil
Drain Plug (48).
Or, use the following equation if you
have a 3450 RPM motor:
8,187.5
3450
2.37”
=
2. The 12-1/2 inch V-groove Pump Pulley
(59) must be in perfect alignment with
the motor pulley (not included).
1. Place the Air Compressor Pump on the
mounting surface at the same level as the 3
HP motor used to drive it.
note: Ensure the Pump Pulley is installed for
counter-clockwise rotation when facing
the pulley side of the Pump.
note: Use a motor with the appropriate size
pulley to get the needed Pump RPM. For
most applications it is recommended to
run this unit at the lower RPM.
CAuTIon: misalignment between the
motor and the Pump can cause
damage to both the motor and the
compressor pump. Use a straight edge,
such as a yardstick, to check and adjust
alignment as needed.
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3. Verify that the Pump Pulley turns freely
where it overhangs the mounting
surface.
The safety guard must be sturdy enough
to prevent injury.
wArnIng! Avoid serious injuries. Do not
operate this Air Compressor Pump
without a pulley guard in place.
4. Place a V-groove belt (not included) over
the Pump Pulley (59) and the motor
pulley.
Checking the oil
5. Pull the Compressor Pump until properly
aligned, and the belt is tight. Recheck
the motor pulley, V-groove belt, and
Pump Pulley alignment.
Check the oil level before operation.
Fill the Pump Crankcase with SAe 30w
non-detergent air compressor oil
(sold separately).
6. Use a pencil to mark through the Air
Compressor Pump mounting holes onto
the mounting surface.
ImPorTAnT: running the Air Compressor
Pump with the incorrect amount of oil
will cause damage to the equipment
and void the warranty. To prevent
damage, do not use with overfilled
or low oil. Slowly fill to full line, wait
2 minutes and fill back up to full line.
The Compressor Pump has small
passages that will fill slowly.
7. Move Air Compressor Pump and drill four
5/16” holes in the mounting surface.
8. Move the Air Compressor Pump back to
its mounting position.
9. Secure each corner of base with a 5/16”
diameter grade 5 or better bolt, washer,
lock washer, and nut (all not supplied).
Crankcase (1)
10. Make final alignment and adjust belt
tension with the motor. It may be
Oil Sight Glass (4)
necessary to loosen the motor mounting
bolts to adjust the motor location. To test
the proper tension on the V-belts, press
down on the belts, there should be 1/2”
deflection or less at mid span. Tighten all
mounting hardware.
OIL LEVEL
oVerFIll
Full
low
11. Connect plumbing hardware (not
supplied) from the 3/4” Air Outlet
(Elbow (15)) to the air destination (i.e.,
air pressure tank of the compressor,
not supplied), routing the tubing in the
shortest possible path.
Figure 4
The oil level should be at the center of
the “full” level on the oil level 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 sight glass.
12. Install a safety guard (not supplied) that
surrounds the Motor Pulley, V-belts, and
Pump Pulley. This safety guard must
cover all sides of the moving belts and
pulleys. It should have a clearance of
about one inch from the moving parts.
To add oil:
a. Remove the Oil Fill Plug (63).
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b. Using a funnel to avoid spills, pour
enough oil into the Pump Crankcase
to reach the “full” level in the Oil Sight
Glass.
mAInTenAnCe And
SerVICIng
Procedures not specifically
explained in this manual must
be performed only by a qualified
technician.
c. Replace the Oil Fill Plug.
Cold weather operation
Premium quality 30-weight, non-
To PreVenT
SerIouS Injury
From ACCIdenTAl
oPerATIon:
Turn off and disable the motor
before performing any
inspection, maintenance, or
cleaning procedures.
detergent air compressor oil (sold
separately) is recommended for use
with this compressor pump. Start the
compressor pump in a 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 pump’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.
To PreVenT SerIouS Injury
From ComPreSSor FAIlure:
do not use damaged equipment.
If abnormal noise or vibration
occurs, have the problem
corrected before further use.
note: The following maintenance instructions
are for this Pump installed on a complete
compressor, including all needed
If uncertain which oil to use, please call
Harbor Freight Tools customer service at
1-800-444-3353 for assistance.
components (all sold separately).
wArnIng! To prevent serious injury from
burns: Do not add or change the oil
Cleaning, maintenance, and
lubrication
while the motor is in operation. Allow the
components to cool before replacing oil.
1. beFore eACH uSe, inspect the
general condition of the Air Compressor.
Check for loose hardware, misalignment
or binding of moving parts, damaged
belts, cracked or broken parts, damaged
electrical wiring, and any other condition
that may affect its safe operation.
After filling with Oil, follow your air
compressor operation instructions
and safety warnings.
Change the compressor oil after the
first hour of use to remove any debris.
2. AFTer uSe, wipe external surfaces of
the unit with a clean cloth.
3.
wArnIng! If the supply cord
of this unit is damaged, it must be
replaced only by a qualified service
technician.
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To drain the oil from the Pump Crankcase:
maintenance Schedule
a. Place a container under the Oil Drain
Plug (48).
Following are general guidelines for
maintenance checks of the unit.
b. Remove the Oil Fill Plug (63) to allow air
flow into the Pump.
note: The environment and frequency of
use can affect how often you will need
to check components and perform
maintenance procedures.
c. Remove the Oil Drain Plug, allowing the
oil to drain into the container.
d. When the oil is completely drained from
the Pump, replace the Oil Drain Plug.
daily:
e. Fill the Pump with new compressor oil
to the FULL level on the Oil Sight Glass.
a. Check oil level.
b. Check for oil leaks.
c. Make sure all nuts and bolts are tight.
d. Check for abnormal noise or vibration.
e. Inspect belt.
f. Replace and tighten the Oil Fill Plug.
g. Discard the old oil according to local,
state and federal regulations.
Air Filter maintenance
weekly:
Check the Air Filter weekly to see if it
needs replacement. If working in dirty
environments, you may need to replace
the filter more often. To replace the Air
Filter:
a. Inspect Air Filter.
b. Inspect Oil Breather Plug.
monthly:
Check belt adjustment.
a. Remove any cover that blocks access
to the Air Filter.
every 6 months or 100 operation Hours:
b. Remove the Air Filter.
c. Replace with a new Air Filter.
d. Replace the cover.
*
Replace Pump oil.
oil maintenance
Check the oil periodically for clarity.
Replace oil if it appears milky or if debris
is present, or every 6 months, or 100
hours of run time, whichever comes first.
In harsh environments such as high heat
or high humidity, you will need to replace
the oil more frequently.
wArnIng: Risk of personal injury hazard.
Allow Air Compressor to cool before
changing the oil.
* Use Air Compressor Oil only (sold
separately - SKU 95048).
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Troubleshooting
Problem
Compressor builds
Possible Causes
likely Solutions
1. Crankcase overfilled with oil or 1. Drain oil and refill to proper level with recommended oil.
pressure too slowly
oil too thick.
2. Working environment too cold. 2. Move unit to a warmer location. Check that recommended oil
is in crankcase.
3. Loose fittings.
3. Reduce air pressure, then check all fittings with a soap solution
for air leaks and tighten as needed. Do not overtighten.
Compressor not
building enough air
pressure
1. Filter need cleaning/replacing. 1. Check inlet and outlet filter. Clean and/or replace as needed.
2. Crankcase oil too thick.
3. Loose fittings.
2. Drain oil and refill to proper level with recommended oil.
3. Reduce air pressure, then check all fittings with a soap solution
for air leaks and tighten as needed. Do not overtighten.
1. Drain oil and refill to proper level with recommended oil.
High Oil
Consumption
1. Crankcase oil too thin.
2. Unit not on level surface.
3. Crankcase vent clogged.
2. Reposition unit on a level surface.
3. Clean Crankcase vent.
Overheating
1. Filter need cleaning/replacing. 1. Check inlet and outlet filter. Clean and/or replace as needed.
2. Crankcase oil incorrect type
and/or thickness.
2. Drain oil and refill to proper level with recommended oil.
3. Crankcase oil level too low.
3. Add oil to proper level, check for leaks.
4. Unusually dusty environment. 4. Clean and/or replace filter more often or move unit to cleaner
environment.
Excessive noise
1. Crankcase overfilled with oil
or oil is incorrect thickness or
type.
1. Drain oil and refill to proper level with recommended oil.
2. Crankcase oil level too low.
2. Add oil to proper level, check for leaks.
3. Loose or damaged belt guard. 3. Replace belt guard.
4. Loose fittings.
4. Reduce air pressure, then check all fittings with a soap solution
for air leaks and tighten as needed. Do not overtighten.
5. Unit not on level surface.
1. Crankcase oil too thin or
crankcase overfilled with oil.
5. Reposition unit on a level surface.
1. Drain oil and refill to proper level with recommended oil.
Oil in discharge air
2. Crankcase vent clogged.
2. Clean Crankcase vent.
Air leaks from pump Loose fittings.
or fittings
Reduce air pressure, then check all fittings with a soap solution for
air leaks and tighten as needed. Do not overtighten.
Follow all safety precautions whenever diagnosing or servicing the
compressor. disconnect power supply before service.
SKU 67697
For technical questions, please call 1-800-444-3353.
Page 13
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PArTS lIST
Part
description
Qty
Part
description
Qty
2
6
6
6
1
1
1
1
2
1
1
1
1
4
4
1
1
1
1
1
1
1
1
1
1
1
4
4
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
Bolt
6
6
1
1
1
1
1
1
1
4
4
1
1
1
1
1
1
8
8
2
2
1
2
1
2
4
2
2
2
4
4
4
2
2
2
35 Screw
36 Nut
Spring Washer
Cylinder Head
37 Spring Washer
38 Stud
39 Cylinder
40 Cylinder Gasket
41 Breather Assembly
41a Breather
Air Filter Assembly
Air Filter Front Cover
Air Filter Element
Air Filter Rear Cover
Exhaust Elbow Gasket
Exhaust Elbow
41b Washer
41c Ball
10 Hex Bolt
11 Copper Washer
12 Exhaust Elbow Gasket
13 Exhaust Cooler
14 Exhaust Nut
14a Exhaust Ring
15 Exhaust Elbow
16 Cylinder Head Gasket
17 Screw M4 x 10
18 Spring Washer
19 Outlet Valve Guard
20 Valve Plate
21 Valve Seat
22 Valve Plate
23 Cylinder Gasket
24 Piston Ring Set
25 Compression Ring
26 Oil Ring
41d Breather Rod
42 Bearing Cover Gasket
43 Bearing Cover
44 Spring Washer
45 Bolt
46 Oil Sight Glass
47 Washer
48 Oil Drain Plug
49 Crankcase
50 Bearing
51 Crankshaft
52 Woodruff Key
53 Bearing
54 Bearing Seat Gasket
55 Oil Seal
56 Bearing Seat
57 Spring Washer
58 Bolt 8.8
59 Pump Pulley
60 Washer
27 Piston
28 Piston Pin
29 Piston Pin Clip
30 Hex Bolt
31 Spring Washer
32 Connecting Rod
33 Splasher
61 Spring Washer
62 Bolt
63 Oil Fill Plug
63a Washer
34 Spring Washer
PleASe reAd THe FollowIng CAreFully
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE
OR SHE IS qUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS qUALIFIED
TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY
CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT
PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
reV 10h
Page 14
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SKU 67697
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ASSembly dIAgrAm
reV 10h
SKU 67697
For technical questions, please call 1-800-444-3353.
Page 15
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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 • (800) 444-3353
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 16
For technical questions, please call 1-800-444-3353.
SKU 67697
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