Oilless COMPRessOR
90168
set uP and OPeRating instRuCtiOns
®
distributed exclusively by Harbor Freight tools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
Read this material before using this product.
Failure to do so can result in serious injury.
saVe tHis Manual.
©
®
Copyright 2003 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 08h
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ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
doubt, use the next heavier gage.
The smaller the gage number, the
heavier the cord.
c.do not expose compressors to
rain or wet conditions. Water enter-
ing a compressor will increase the
risk of electric shock.
3. Personal safety
a.stay alert, watch what you are do-
ing and use common sense when
operating this compressor. do
not use this compressor while you
are tired or under the influence of
drugs, alcohol or medication. A
moment of inattention while operating
compressors may result in serious
personal injury.
d.do not abuse the cord. never use
the cord for carrying, pulling or
unplugging the compressor. Keep
cord away from heat, oil, sharp
edges or moving parts. Damaged
or entangled cords increase the risk
of electric shock.
b.use personal protective equip-
ment. always wear eye protection.
Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or
hearing protection used for appropri-
ate conditions will reduce personal
injuries.
e.if operating a compressor in a
damp location is unavoidable, use
a ground Fault Circuit interrupter
(gFCi) protected supply. Use of
a GFCI reduces the risk of electric
shock.
ReCOMMended MiniMuM WiRe
c.Prevent unintentional starting.
ensure the switch is in the off-po-
sition before connecting to power
source or moving the compressor.
gauge FOR eXtensiOn CORds
(120 VOlt)
eXtensiOn CORd
naMePlate
lengtH
aMPeRes
d.do not overreach. Keep proper
footing and balance at all times.
This enables better control of the
compressor in unexpected situations.
(at full load)
25’
18
18
16
14
50’ 100’ 150’
0 – 6
16
16
16
12
16
14
14
14
12
12
6.1 – 10
10.1 – 12
12.1 – 16
taBle a
e.dress properly. do not wear loose
clothing or jewelry. Keep your
hair, clothing and gloves away
from moving parts. Loose clothes,
jewelry or long hair can be caught in
moving parts.
do not use.
f. use PROPeR eXtensiOn CORd.
Make sure your extension cord is
in good condition. When using an
extension cord, be sure to use one
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 over-
heating. Table A shows the correct
size to use depending on cord length
and nameplate ampere rating. If in
f. Only use safety equipment that
has been approved by an appropri-
ate standards agency. Unapproved
safety equipment may not provide
adequate protection. Eye protection
must be ANSI-approved and breath-
ing protection must be NIOSH-ap-
SKU 90168
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proved for the specific hazards in the 5. service
work area.
a.Have your compressor serviced
by a qualified repair person using
only identical replacement parts.
This will ensure that the safety of the
compressor is maintained.
4. Compressor use and care
a.do not force the compressor. use
the correct compressor for your
application. The correct compressor
will do the job better and safer at the
rate for which it was designed.
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.
b.do not use the compressor if the
switch does not turn it on and off.
Any compressor that cannot be con-
trolled with the switch is dangerous
and must be repaired.
c.disconnect the plug from the
power source of the compressor
before making any adjustments,
changing accessories, or stor-
ing compressors. Such preventive
safety measures reduce the risk of
starting the compressor accidentally.
2. Risk of bursting - do not adjust
regulator to result in output pressure
greater than marked maximum pres-
sure of attachment.
d.store idle compressors out of the
reach of children and do not allow
persons unfamiliar with the com-
pressor or these instructions to
operate it. Compressors are danger-
ous in the hands of untrained users.
3. Risk of injury - do not direct air
stream at body. To reduce the risk of
electric shock, do not expose to rain.
Store indoors.
e.Maintain compressors. Check for
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
compressor’s operation. if dam-
aged, have the compressor re-
paired before use. Many accidents
are caused by poorly maintained
compressors.
4. Do not use to supply breathing air.
5. Do not direct air flow from the Com-
pressor at people or animals.
6. Industrial applications must follow
OSHA requirements.
7. Maintain labels and nameplates on
the compressor. These carry impor-
tant safety information. If unreadable
or missing, contact Harbor Freight
Compressors for a replacement.
f. use the compressor in accordance
with these instructions, taking into
account the working conditions
and the work to be performed. Use
of the compressor for operations
different from those intended could
result in a hazardous situation.
8. Avoid unintentional starting. Prepare
to begin work before turning on the
compressor.
SKU 90168
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9. This product is not a toy. Keep it out
of reach of children.
those dust masks that are specially
designed to filter out microscopic
particles. (California Health & Safety
Code § 25249.5, et seq.)
10. WARNING: The brass components
of this product contain lead, a chemi-
cal known to the State of California
to cause birth defects (or other repro-
ductive harm). (California Health &
Safety code § 25249.5, et seq.)
13. WARNING: Handling the cord on
this product will expose you to lead,
a chemical known to the State of
California to cause cancer, and birth
defects or other reproductive harm.
Wash hands after handling. (Califor-
nia Health & Safety Code § 25249.5,
et seq.)
11. People with pacemakers should
consult their physician(s) before use.
Electromagnetic fields in close prox-
imity to heart pacemaker could cause
pacemaker interference or pacemak- 14. The warnings, precautions, and in-
er failure. In addition, people with
pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked
on.
• Properly maintain and inspect to
avoid electrical shock.
• Any power cord must be properly
grounded. Ground Fault Circuit Inter-
rupter (GFCI) should also be imple-
mented – it prevents sustained elec-
trical shock.
structions discussed in this instruction
manual cannot cover all possible con-
ditions 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.
saVe tHese
instRuCtiOns.
12. Some dust created by power sand-
ing, sawing, grinding, drilling, and
other construction activities, contains
chemicals known [to the State of Cali-
fornia] to cause cancer, birth defects
or other reproductive harm. Some
examples of these chemicals are:
• Lead from lead-based paints
• Crystalline silica from bricks and ce-
ment or other masonry products
• Arsenic and chromium from chemi-
cally treated lumber
Your risk from these exposures var-
ies, depending on how often you do
this type of work. To reduce your
exposure to these chemicals: work in
a well ventilated area, and work with
approved safety equipment, such as
SKU 90168
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instructions are not completely under-
stood, or if in doubt as to whether the
compressor is properly grounded.
gROunding instRuCtiOns
tO PReVent
eleCtRiC sHOCK
and deatH FROM
inCORReCt gROunding
WiRe COnneCtiOn
Read and FOllOW tHese
instRuCtiOns:
5. Use only 3-wire extension cords that
have 3-prong grounding plugs and
3-pole receptacles that accept the
compressor’s plug.
6. Repair or replace damaged or worn
cord immediately.
grounded Compressors:
Compressors with three Prong
Plugs
1. In the event of a malfunction or
breakdown, grounding provides a
path of least resistance for electric
current to reduce the risk of electric
shock. This compressor is equipped
with an electric cord having an
equipment-grounding conductor and
a grounding plug. The plug must be
plugged into a matching outlet that
is properly installed and grounded in
accordance with all local codes and
ordinances.
7. This compressor is intended for use
on a circuit that has an outlet that
looks like the one illustrated above
in 125 V~ 3-Prong Plug and Outlet.
The compressor has a grounding
plug that looks like the plug illustrated
above in 125 V~ 3-Prong Plug and
Outlet.
2. Do not modify the plug provided – if it
will not fit the outlet, have the proper
outlet installed by a qualified electri-
cian.
8. The outlet must be properly installed
and grounded in accordance with all
codes and ordinances.
3. Improper connection of the equip-
ment-grounding conductor can re-
sult in a risk of electric shock. The
conductor with insulation having an
outer surface that is green with or
without yellow stripes is the equip-
ment-grounding conductor. If repair
or replacement of the electric cord or
plug is necessary, do not connect the
equipment-grounding conductor to a
live terminal.
9. Do not use an adapter to connect this
compressor to a different outlet.
4. Check with a qualified electrician or
service personnel if the grounding
SKU 90168
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double insulated Compressors:
Compressors with two Prong
Plugs
sPeCiFiCatiOns
Electrical
Requirements
120 V~ / 60 Hz / 210 W
(Load) / 4.5 A (Start Up) /
6.25 A (Peak)
Three Prong Plug
Air Tank Capacity 3 Gallons
Pressure Range 70-100 PSI
Air Flow Capacity .5 CFM @ 90 PSI / .7 CFM
@ 40 PSI
Accessories
25’ Coil Air Hose / Air Chuck
unPaCKing
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at the number shown on the
cover of this manual as soon as possible.
1. To reduce the risk of electric shock,
double insulated equipment has a po-
larized plug (one blade is wider than
the other). This plug will fit in a polar-
ized outlet only one way. If the plug
does not fit fully in the outlet, reverse
the plug. If it still does not fit, contact
a qualified electrician to install the
proper outlet. Do not change the plug
in any way.
2. Double insulated compressors may
be used in either of the 120 volt
outlets shown in the preceding illus-
tration. (see Outlets for 2-Prong
Plug.)
SKU 90168
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tOOl
PRessuRe
gauge
(2a)
air line
Connection
Point
tOOl
tanK
(14)
POWeR
sWitCH
(19)
PRessuRe
RegulatOR
(6)
tanK
PRessuRe
gauge
(2)
saFetY
ValVe
(3)
dRain
(9)
note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
PROduCt OVeRVieW
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.
Prior to using the Air Compressor,
make sure to familiarize yourself with its
basic features and methods of operation
as described in this section:
tO PReVent
seRiOus injuRY
FROM aCCidental
1. Power switch (19): The Power
Switch turns the Air Compressor ON
and OFF. When the Power Switch
is in its ON position it allows the Air
Compressor to automatically start up
or shut down depending on the level
of compressed air in the Air Com-
pressor’s Tank (14).
OPeRatiOn:
turn the Power switch of the
compressor to its “OFF”
position and unplug the
compressor from its electrical
outlet before assembling or
making any adjustments to
the compressor.
2. safety Valve (3): If the Air Compres-
sor does not automatically shut down
when the air pressure reaches the
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factory preset level, the Safety Valve
will automatically pop open to prevent
over pressurization in the Tank (14).
To operate the Safety Valve manually,
pull the ring on the Safety Valve to
relieve air pressure in the Tank.
3. tank Pressure gauge (2): The Tank
Pressure Gauge measures the air
pressure stored in the Tank (14), and
is not adjustable by the operator.
4. tool Pressure gauge (2a): The Tool
Pressure Gauge measures the air
pressure being supplied to the tool
being used.
5. tool Pressure Regulator (6): The
Tool Pressure Regulator allows you to
adjust the air pressure (0 to 120 PSI)
being supplied to the tool being used.
Turn the Tool Pressure Regulator
clockwise to increase the air pressure
to the tool, and counterclockwise to
decrease the air pressure.
SKU 90168
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9. the air Compressor is now ready
to use. When finished using the Air
Compressor, turn the Power Switch
(19) to its OFF or O position. Then,
unplug the Air Compressor from its
electrical outlet.
OPeRating instRuCtiOns
Read the entiRe iMPORtant
saFetY inFORMatiOn
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
10. Turn the Tool Pressure Regulator
(6) counterclockwise until it is fully
closed.
1. Close the Drain (9) completely.
2. Turn the Tool Pressure Regulator
(6) counterclockwise until it is fully
closed.
11. Pull the ring on the Safety Valve (3)
to relieve all remaining air pressure in
the Tank.
3. Pull the ring on the Safety Valve (3)
to check that it operates properly.
12. Activate the tool in a safe manner
to release air pressure from the air
hose. Then, disconnect the air hose
from the tool, and store the compres-
sor in a safe, dry location.
4. Attach the Air Hose (20) to the air
outlet on the Regulator (6). Connect
the other end of the air hose to the air
inlet of the tool. Other components,
such as a connector and quick cou-
pler, will make operation more effi-
cient, but are not required.
note: If inflating tires or other objects,
connect the Air Hose (20) to the Infla-
tion Chuck (21). Do not overinflate
any object.
5. Plug the Power Cord/Plug (7) into the
nearest 120 volt, grounded, electrical
outlet.
6. Turn the Power Switch (19) to its
|
autO or position.
7. Observe the Tank Pressure Gauge
(2), and allow the air pressure in the
Tank (14) to build up to 70 Psi.
8. Observe the Tool Pressure Gauge
(2A), while turning the Tool Pressure
Regulator clockwise to increase pres-
sure up to the desired level.
WaRning! do not exceed the tool’s
maximum air pressure.
SKU 90168
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Open the Drain (9) on the bottom of
the Tank, and tilt the Tank to allow the
moisture to drain. Then, make sure
to fully close the Drain.
MaintenanCe and
seRViCing
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
3. tO Clean: Use a clean cloth and
mild detergent to clean the body
of the Air Compressor. Do not use
solvents. Do not immerse any part of
the Air Compressor in liquid.
tO PReVent
seRiOus injuRY
FROM aCCidental
OPeRatiOn:
4.
WaRning! if the supply cord of
this power tool is damaged, it must
be replaced only by a qualified
service technician.
turn the Power switch of the
compressor to its “OFF”
position and unplug the
compressor from its electrical
outlet before performing any
inspection, maintenance, or
cleaning procedures.
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.
1. BeFORe eaCH use, inspect the
general condition of the Air Compres-
sor. Check for loose screws, mis-
alignment or binding of moving parts,
damaged electrical wiring, Tank, air
hoses/accessories (not included),
and any other condition that may af-
fect its safe operation.
2. at end OF eaCH WORKdaY:
Condensation will accumulate inside
the Tank (14). To prevent corrosion
inside the Tank, the moisture should
be drained at the end of each work-
day. To drain the moisture, Pull the
ring on the Safety Valve (3) to relieve
all remaining air pressure in the Tank.
SKU 90168
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Please Read tHe FOllOWing CaReFullY
THE mANUfACTURER AND/OR DISTRIbUTOR HAS PROvIDED THE PARTS LIST AND ASSEmbLy
DIAgRAm IN THIS mANUAL AS A REfERENCE TOOL ONLy. NEITHER THE mANUfACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT
HE OR SHE IS qUALIfIED TO mAkE ANy REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
qUALIfIED TO REPLACE ANy PARTS Of THE PRODUCT. IN fACT, THE mANUfACTURER AND/
OR DISTRIbUTOR ExPRESSLy STATES THAT ALL REPAIRS AND PARTS REPLACEmENTS SHOULD
bE UNDERTAkEN by CERTIfIED AND LICENSED TECHNICIANS, AND NOT by THE bUyER. THE
bUyER ASSUmES ALL RISk AND LIAbILITy ARISINg OUT Of HIS OR HER REPAIRS TO THE
ORIgINAL PRODUCT OR REPLACEmENT PARTS THERETO, OR ARISINg OUT Of HIS OR HER
INSTALLATION Of REPLACEmENT PARTS THERETO.
PaRts list
PaRts list
Part
description
Qty.
Part
11
description
Qty.
1
2
Shroud w/Handle
1
1
1
1
1
2
1
1
1
1
4
Circuit Board
1
1
1
1
2
2
1
8
1
1
1
Tank Pressure Gauge
12
13
14
15
16
17
18
19
20
21
Pressure Switch
Pump Assembly
Tank
Connector (1/8”-27 NPT)
Connection Nut
Copper Vent Tube
Screw
Power Switch
25’ Air Hose (Not Shown)
Inflation Chuck (Not Shown)
2A Tool Pressure Gauge
3
4
5
6
7
8
9
10
Safety Valve
Air Line Outlet
Connector
Tool Pressure Regulator
Power Cord/Plug
Fan
Drain
Rubber Foot
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asseMBlY diagRaM
2
1
3
2a
6
19
18
4
5
5
15
13
8
air line
Connection
Point
17
16
15
7
11
12
14
9
10
10
Parts 20 and 21 - Air Hose and Inflation Chuck - not shown.
Record Product’s serial number Here:
note: If product has no serial number, record month and year of purchase instead.
note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.
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liMited 1 YeaR / 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 for a period
of one year from date of purchase that the tank is free of defects in materials and work-
manship (90 days if used by a professional contractor or if used as rental equipment).
Harbor Freight Tools also warrants to the original purchaser, for a period of ninety days
from date of purchase, that all other parts and components of the product are free from
defects in materials and workmanship. This warranty does not apply to damage due di-
rectly or indirectly to misuse, abuse, negligence or accidents, repairs or alterations out-
side our facilities, 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 limita-
tion 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 com-
plaint must accompany the merchandise. If our inspection verifies the defect, we will ei-
ther 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 re-
paired 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
SKU 90168
For technical questions, please call 1-800-444-3353.
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