Industrial Air C031I Programming manual

OPERATOR-PARTS MANUAL
3-GALLON PORTABLE AIR COMPRESSOR
Questions, problems, missing parts? Before returning to the store, call Customer Service
8 a.m. - 6 p.m., EST, Monday - Friday
PRODUCT SERVICE:
888-895-4549
industrialaircontractor.com
MODEL # C031I

2
Safety Information
Table of Contents
Safety Information....................................2
Work Area Safety ...................................2
Personal Safety .....................................3
Moving the Compressor.........................3
Air Compressor and
Pneumatic Tool Safety ...........................4
Electrical Safety.....................................5
Warranty ...................................................7
Pre-Operation ...........................................8
Specifications ........................................8
Duty Cycle..............................................8
Package Contents..................................8
System Components..............................9
Placement of the Air Compressor ........10
Installing the Air Intake Filter...............10
Installing the Fill Cap/Breather ...........11
Refilling Compressor Pump with Oil ....11
Attaching the Hose ..............................11
Tool Usage............................................12
Operation.................................................13
Maintenance ...........................................17
General Maintenance...........................17
Lubrication...........................................17
Cleaning the Air Filter .........................17
Changing the Oil ..................................18
Care and Cleaning ..................................18
Troubleshooting......................................19
Service Parts ..........................................21
This manual contains information that is important for
you to know and understand. This information relates
to protecting your safety and preventing equipment
problems. To help you recognize this information, we
use the symbols below. Please read the manual and pay
attention to these symbols.
WORK AREA SAFETY
□Keep your work area clean and well lit. Ensure
floors are not slippery from wax or dust.
□Operate the air compressor in an open area at least
18 in. (0.5 m) away from any wall or object that
could restrict the flow of fresh air to ventilation
openings.
WARNING:Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases, or dust. Power tools create sparks which
may ignite the dust or fumes. Keep bystanders, children,
and visitors away while operating tools. Distractions can
cause you to lose control.
DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING:Indicates a potentially hazardous situation
which, if not avoided, could result in death or serious
injury.
CAUTION:Indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury.
NOTICE:Indicates a practice not related to personal injury which, if
not avoided, may result in property damage.
WARNING:This compressor is not equipped for, and
should not be used to supply breathing air. Additional
equipment would be necessary to properly filter and
purify the air to meet minimal specifications for Grade D
breathing as described in Compressed Gas Association
Commodity, Specification G 7.1 - 1966, OSHA 29 CF9
1910.134. Compressed Gas Association, 4221 Walney
Road, Fifth Floor, Chantilly, VA 20151-2923, [phone],
www.cganet.com. Any such additional equipment has
not been examined and no implication of proper use for
breathing air is intended or implied.
CAUTION:Always disconnect the air supply and power
supply before making adjustments, servicing a tool, or
when a tool is not in use.

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Safety Information (continued)
PERSONAL SAFETY
□Keep proper footing and balance at all times.
Proper footing and balance enables better control
of the tool in unexpected situations
□Do not use on a ladder or unstable support.
WARNING:Operating any power tool can result in foreign
objects being thrown into your eyes, which can result in
severe eye damage. Before beginning operation, always
wear safety goggles, safety glasses with side shields, or
a full face shield when needed. Always use eye protection
marked to comply with ANSI Z87.1.
WARNING:This product contains chemicals known to
the State of California to cause cancer and birth defects or
other reproductive harm. Wash hands after handling.
WARNING:Use safety equipment. Always wear eye
protection with side shields when operating power tools.
A dusk mask, non-skid safety shoes, hard hat, or hearing
protection must be used for appropriate conditions.
WARNING:Stay alert when operating a power tool. Do
not use the tool while tired or under the influence of drugs,
alcohol, or medication.
WARNING:Do not wear loose clothing or jewelry.
Contain long hair. Keep your hair, clothing, and gloves away
from moving parts. Loose clothes, jewelry, or long hair can
be caught in moving parts.
WARNING:Never touch any exposed metal parts on
compressor during or immediately after operation. The
compressor will remain hot for several minutes after
operation. Do not reach around protective shrouds or
attempt maintenance until the unit has been allowed to
cool.
MOVING THE AIR COMPRESSOR
□Grasp the handle.
□When the location is reached, slowly lower the
compressor to the ground. Always store the
compressor in a horizontal position resting on the
rubber bumpers.
□When transporting the compressor in a vehicle,
trailer, etc., make sure the tank is drained and the
unit is secured with straps to prevent tipping. Use
care when driving to prevent tipping the unit over in
the vehicle. Damage can occur to the compressor
or surrounding items if the compressor is tipped.
Do not lift by the shroud.
WARNING:Risk of unsafe operation. Ensure proper
footing and use caution when carrying the compressor so
that the unit does not cause loss of balance.

4
Safety Information (continued)
AIR COMPRESSOR AND
PNEUMATIC TOOL SAFETY
□Keep compressors as far from the spraying area as
possible: at least 15 ft. (4.6 m) from the spraying
area and all explosive vapors.
□If connected to a circuit protected by fuses, use time-
delay fuses with this product.
□Ensure the hose is free of obstructions or snags.
Entangled or snarled hoses can cause loss of
balance or footing, and may become damaged.
□Use the air compressor only for its intended use. Do
not alter or modify the unit from the original design
or function. Never weld or drill holes in the air tank.
□Never leave a tool unattended with the air hose
attached.
□Do not operate this tool if it does not contain a
legible warning label.
□Do not continue to use a tool or hose that leaks air or
does not function properly.
□Do not attempt to pull or carry the air compressor
by the hose.
□Your tool may require more air consumption than
this air compressor is capable of providing.
□Never direct a jet of compressed air toward people
or animals.
□Protect your lungs. Wear a face or dust mask if the
operation is dusty.
□Do not use this air compressor to spray chemicals.
Your lungs can be damaged by inhaling toxic
fumes. A respirator may be necessary in dusty
environments or when spraying paint.
□This compressor is equipped with a thermal
overload protector which will shut off the motor if it
becomes overheated.
WARNING:Do not attempt to modify this tool or create
accessories not recommended for use with this tool.
Any such alteration or modification is misuse and could
result in a hazardous condition leading to possible serious
personal injury.
CAUTION:Do not use the compressor in an environment
that is dusty or otherwise contaminated. Using the air
compressor in this type of environment may cause damage
to the unit.
CAUTION:Risk of bursting. Do not adjust the regulator
to result in output pressure greater than the marked
maximum pressure of the attachment. Do not use at
pressure greater than the rated maximum pressure of this
compressor.
CAUTION:To reduce the risk of electric shock, do not
expose the compressor to rain. Store indoors.

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Safety Information (continued)
ELECTRICAL SAFETY (EXTENSION CORDS)
□Use only 3-wire extension cords that have 3-prong
grounding plugs and 3-port grounded receptacles
that accept the product’s plug. When using a power
tool at a considerable distance from the power
source, use an extension cord heavy enough to
carry the current that the product will draw. An
undersized extension cord will cause a drop in line
voltage, resulting in a loss of power and causing
the motor to overheat.
□Use the chart provided below to determine the
minimum wire size required in an extension cord.
Only round jacketed cords listed by Underwriter’s
Laboratories (UL) should be used.
□Only use 50 feet or less, round jacketed cords listed
by Underwriter’s Laboratories (UL).
□When operating a power tool outside, use an
outdoor extension cord marked “W-A” or “W”.
These cords are rated for outdoor use and reduce
the risk of electric shock.
Ampere rating
(on air compressor data plate)
8 - 10
Cord
Length Wire Size (AWG)
25 ft. 18
50 ft. 14
Used on 12 gauge - 20 amp circuit.
NOTE: AWG=American Wire Gauge
WARNING:When using an extension cord, keep it clear
of the working area. Position the cord so that it will not get
caught on lumber, tools, or other obstructions while you
are working with a power tool. Failure to do so can result
in serious personal injury.
WARNING:Check extension cords before each use.
If damaged, replace immediately. Never use the air
compressor with a damaged cord since touching the
damaged area could cause electrical shock resulting in
serious personal injury.
WARNING:Improperly connecting the equipment-
grounding conductor can result in a risk of electrical
shock.
CAUTION:Avoid body contact with grounded surfaces
such as pipes, radiators, ranges, and refrigerators. There
is an increased risk of electric shock if your body is
grounded.
CAUTION:Do not expose power tools to rain or wet
conditions. Water entering a power tool will increase the
risk of electric shock.
CAUTION:Replace damaged cords/wiring immediately.
Damaged cords/wiring increase the risk of electric shock.
NOTICE:Use longer air hoses instead of long extension cords. Your
air compressor will run better and last longer.
ELECTRICAL SAFETY (ELECTRICAL
CONNECTION)
□This air compressor is powered by a precision built
electric motor. It should be connected to a power
supply that is 120 volts, 60 Hz, AC only (normal
household current).
□Do not operate this tool on direct current (DC). A
substantial voltage drop will cause a loss of power
and the motor will overheat. If the air compressor
does not operate when plugged into an outlet,
double check the power supply.

6
Safety Information (continued)
ELECTRICAL SAFETY (SPEED AND WIRING)
□The no-load speed of this product is approximately
3,450 rpm. This speed is not constant and
decreases under a load or with lower voltage.
□For voltage, the wiring in a shop is as important as
the motor’s horsepower rating. A line intended only
for lights cannot properly carry a power tool motor.
Wire that is heavy enough for a short distance will
be too light for a greater distance. A line that can
support one power tool may not be able to support
two or three products.
ELECTRICAL SAFETY (GROUNDING
INSTRUCTIONS)
□This product must be grounded. In the event of an
electrical short circuit, grounding reduces the risk
of electric shock by providing an escape wire for
the electric current. This product is equipped with
a cord having a grounding wire with an appropriate
grounding plug. The plug must be plugged into an
outlet that is properly installed and grounded in
accordance with all local codes and ordinances.
WARNING:Improper installation of the grounding plug
may result in a risk of electric shock. When repair or
replacement of the cord or plug is required, do not connect
the grounding wire to either flat blade terminal. The wire
with insulation having an outer surface that is green with
or without yellow stripes is the grounding wire.
□Check with a qualified electrician or service
personnel if these instructions are not completely
understood or if in doubt as to whether the tool is
properly grounded.
□Do not modify the plug provided; if it will not fit
the outlet, have the proper outlet installed by a
qualified electrician.
□This product is for use on a nominal 120-Volt
circuit and has a grounding plug similar to the
plug shown. Only connect the product to an outlet
having the same configuration as the plug. Do not
use an adapter with this product.
GROUNDING PIN
120-Volt GROUNDED OUTLET

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Warranty
ONE YEAR LIMITED WARRANTY
What Does This Warranty Cover? MAT Industries, LLC. (the Company) warrants from the date of purchase by the original retail
purchaser only, parts and labor to remedy substantial defects found in materials, or workmanship.
How Long Does The Coverage Last? The duration of this warranty is One Year. This warranty is not transferable to subsequent
owners.
What MAT Industries Will Do? MAT Industries, LLC. will cover parts and labor to remedy substantial defects due to materials and
workmanship during the first year of ownership, with the exceptions noted below, and parts only, to remedy substantial defects due to
material and workmanship for the remaining term of coverage with the exceptions noted below. Parts used in repair of whole goods
or accessories are warranted for the balance of the original warranty period.
What is Not Covered Under This Warranty? Failure by the original retail purchaser to install, maintain, and operate said equipment in
accordance with standard industry practices. Modifications to the product, or tampering with components, or failure to comply with
the specific recommendations of the Company set forth in the owner’s manual, will render this warranty null and void.
The Company shall not be liable for any repairs, replacements, or adjustments to the equipment, or any costs for labor performed by
the purchaser without the Company’s prior written approval. The effects of corrosion, erosion, surrounding environmental conditions,
cosmetic defects, and routine maintenance items, are specifically excluded from this warranty. Routine maintenance items such as:
oil, lubricants, and air filters, as well as changing oil, air filters, belt tensioning, etc… fall under the owner’s responsibility. Additional
exclusions include: freight damage, failures resulting from neglect, accident, or abuse, induction motors when operated from a
generator, oil leaks, air leaks, oil consumption, leaky fittings, hoses, petcocks, bleeder tubes, and transfer tubes.
• If the compressor is used for commercial, industrial, or military applications, the warranty will apply for 90 days from the date of
purchase. Two stage compressors are not limited to a 90 day warranty when used in commercial or industrial applications.
• Rental applications render this warranty null and void.
• Labor, service calls, and travel charges, are not covered after the first year of ownership on stationary compressors
(compressors without handles, or wheels). Repairs requiring overtime, weekend rates, or any other charges beyond the standard
shop labor rate are not covered.
• Time required for orientation training for the service center to gain access to the product, or additional time due to
inadequate egress.
• Damage caused by incorrect voltage, improperly wired, or failure to have a certified licensed electrician install the compressor,
will render this warranty null and void.
• Damage caused from inadequate filter maintenance.
• Pump wear or valve damage caused by using oil not specified.
• Pump wear or damage caused by any oil contamination.
• Pump wear or valve damage caused by failure to follow proper maintenance guidelines.
• Operation below proper oil level or operation without oil.
• Gas Engines, if product is equipped with a gas engine, see engine manual for specific engine manufacturer’s warranty coverage.
Parts purchased separately: The warranty for parts purchased separately such as: pumps, motors, etc., are as follows:
From Date of Purchase
• All single & two stage pumps: 1 year
• Electric motors: 90 days
• Universal motor/pump: 30 days
• All other parts: 30 days
• No return authorization will be issued for electrical components once items are installed.
How do You Get Service? In order to be eligible for service under this warranty you must be the original retail purchaser, and provide
proof of purchase from one of MAT Industries dealers, distributors, or retail outlet stores. Portable compressors or components must
be delivered, or shipped, to the nearest Authorized MAT Industries Service Center. All associated freight costs and travel charges must
be borne by the consumer. Please call our toll free number 1-888-895-4549 for assistance.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.
THE COMPANY MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT
THAT OF TITLE. ALL IMPLIED WARRANTIES, INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR PARTICULAR
PURPOSE ARE HEREBY DISCLAIMED. LIABILITY FOR CONSEQUENTIAL AND INCIDENTAL DAMAGES UNDER ANY AND ALL WARRANTIES,
OTHER CONTRACTS, NEGLIGENCE, OR OTHER TORTS IS EXCLUDED TO THE EXTENT EXCLUSION IS PERMITTED BY LAW.
MAT Industries, LLC, Jackson, TN 38301 U.S.A.

8
Pre-Operation
Part Description Quantity
A Air Compressor Unit 1
B Air Intake Filter 1
C Fill Cap/Breather 1
A
SPECIFICATIONS
Running horsepower 1.0 HP
Air tank capacity 3 gal.
Air pressure 135 PSI max.
Air delivery 3.7 SCFM at 40 PSI
2.4 SCFM at 90 PSI
Tank Fill Time 1 minute, 45 seconds
Lubrication Oil lubricated
Input 120V, 60 Hz, Single phase
AC only, 9.5 Amps.
Minimum branch circuit requirement 15 A
Fuse type Time delay
Net weight 39 lbs.
DUTY CYCLE
This air compressor pump is capable of running continuously. However, to prolong the life of your air compressor,
it is recommended that a 50% average duty cycle be maintained; that is, the air compressor pump should not run
more than 30 minutes in any given hour.
PACKAGE CONTENTS
B
C

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Pre-Operation (continued)
Part Description
AAUTO/OFF Switch: Turn this switch in the “AUTO ( I )” position to provide automatic power to the
pressure switch and “OFF ( O )” to remove power at the end of each use.
B
Safety Valve: If the pressure switch does not shut off the air compressor at its “cut-out” pressure
setting, the safety valve will protect against high pressure by “popping out” at its factory set pressure
(slightly higher than the pressure switch “cut-out” setting).
CTank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.
DAir Compressor Pump: Compresses air into the air tank. Working air is not available until the
compressor has raised the air tank pressure above that required at the air outlet.
EDrain Valve: The drain valve is located at the base of the air tank and is used to drain condensation at
the end of each use.
F
Check Valve (not shown): When the air compressor is operating, the check valve is “open”, allowing
compressed air to enter the air tank. When the air compressor reaches “cut-out” pressure, the check
valve “closes”, allowing air pressure to remain inside the air tank.
G
Thermal Overload Reset: (not shown) This motor has an automatic thermal overload protector. If
the motor overheats for any reason, the overload protector will shut off the motor. The motor must be
allowed to cool down before restarting. To restart:
1. Place the AUTO/OFF switch in the “OFF” ( O ) position and unplug the machine from its power source.
2. Allow the motor to cool.
3. Place the AUTO/OFF switch in the “AUTO” ( I ) position to restart the motor.
HRegulator: Allows the user to adjust the pressure coming out of the tank to match what is needed for the
task.
IPressure Regulator Gauge: Gauge that indicates the amount of pressure that the regulator is providing
to the tool.
JQuick Connects: Fittings that are designed to accept a hose that allows pressure to be released for tool
usage.
SYSTEM COMPONENTS
E
D
C
J
A
B
I
H

10
Pre-Operation (continued)
PLACEMENT OF THE AIR COMPRESSOR
WARNING: If any parts are damaged or missing do
not operate this product until the parts are replaced.
Failure to heed this warning could result in serious
personal injury.
CAUTION: Do not use in an environment that is dusty
or otherwise contaminated. Using the air compressor in
this type of environment may cause damage to the unit.
NOTE:Long lengths of electrical wiring could cause power
loss to the motor.
□Place the air compressor in a clean, dry, and well
ventilated area.
□The air compressor must be positioned at least 18
in. (0.5 m) away from the wall or other obstructions
that will interfere with the flow of air.
□Locate the air compressor as close to the main
power supply as possible to avoid using long
lengths of electrical wiring.
□The air filter must be kept clear of obstructions
which could reduce air flow to the air compressor.
18 in.
(0.5 m)
INSTALLING THE AIR INTAKE FILTER
CAUTION: Do not attempt to start the air compressor
without first installing air intake filter and the fill cap/
breather. The pump is shipped with oil from the factory,
but pump can build internal pressure and blow off cap,
if breather is not installed. Only use non-detergent
oils when refilling, because the multi-viscosity motor
oils leave carbon deposits on pump components, thus
reducing the performance and compressor life.
□Remove the plastic plug (1) from the compressor
head (2). Remove the air intake filter (3) from the
poly bag and thread it into the compressor head (2),
as shown.
1
3
2

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Pre-Operation (continued)
INSTALLING FILL CAP/BREATHER
□Compressor pump is filled with high quality oil at
the factory. Remove the plug (1) from the oil fill
port. Install the provided fill cap/breather (2) into
the oil fill port.
REFILLING THE COMPRESSOR PUMP WITH OIL
WARNING: Drain the tank to release all the tank air
pressure before removing the oil fill cap. Be sure the air
vent in the oil fill cap is free from debris. If the air vent
is blocked, pressure can build in the crankcase, causing
damage to the compressor and possible personal injury.
□Remove the oil fill cap/breather (3) by turning it
counter-clockwise by hand. Fill the compressor
pump with air compressor oil, such as SAE-30 non-
detergent Semi Synthetic oil, at slow intervals until
the oil reaches the center of the red circle in the
sight glass (4). Use SAE-10 during extreme winter
conditions.
ATTACHING THE HOSE
WARNING: Do not attempt to modify this product or
create accessories not recommended for use with this
product. Any such alteration or modification is misuse
and could result in a hazardous condition leading to
possible serious personal injury.
WARNING: Do not attach the air chuck or other tools
to the open end of the hose until start-up has been
completed.
WARNING: Do not allow familiarity with products to
make you careless. Remember that a careless fraction
of a second is sufficient to inflict serious injury.
WARNING: Always wear safety goggles or safety
glasses with side shields when operating power tools.
Failure to do so could result in objects being thrown
into your eyes resulting in possible serious injury.
The compressor is assembled at the factory and
ready for use. Check all components to ensure secure
assembly, (such as rubber feet, handle, quick connects,
gages, safety valve, air filter, drain valve, etc.)
□Make sure the power to the air compressor is
disconnected.
□Apply thread tape to the threaded connections
of the hose (not included), and attach the quick
connect to the hose using a wrench (not included).
□Rotate the pressure regulator knob (1) fully
counterclockwise.
□Insert the hose adapter end of the air hose (2) into
the female coupler end in the air compressor (3). 32
1
3
4
2
1

12
Pre-Operation (continued)
Tool
Inflation Finishing nailing Framing/
Roofing Bolting
Inflator Brad
nailer Stapler Framing/Roofing nailer
Impact
Wrench
Heavy duty 1/2 in. and 3/4
in. impact wrench Air ratchet
Recommended
Tool Use
Tool
Cutting/Drilling Surface Prep Painting HVLP
Painting
Grease
Gun
Air hammer Cut off
tool
Drill/Im-
pact driver Sander Grinder Paint gun Paint gun Grease Gun
Recommended
Tool Usage
TOOL USAGE
= Continuous = Intermittent = Not Recommended

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1 Preparing for start-up
WARNING: Risk of unsafe operation. Firmly grasp air
hose in hand when installing or disconnecting to prevent
hose whip.
WARNING: Risk of unsafe operation. Do not use
damaged or worn accessories.
WARNING: Risk of bursting. Too much air pressure
causes a hazardous risk of bursting. Check the
manufacturer’s maximum pressure rating for air tools and
accessories. The regulator outlet pressure must never
exceed the maximum pressure rating.
CAUTION: Risk of unsafe operation. Compressed air
from the unit may contain water condensation and oil
mist. Do not spray unfiltered air at an item that could be
damaged by moisture. Some air tools and accessories may
require filtered air. Read the instructions for the air tools
and accessories.
NOTE: A regulator MUST be installed when using
accessories rated at less than 150 psi. The hose or
accessory will require a quick connect plug if the air outlet
is equipped with a quick connect socket.
□Place the AUTO/OFF switch (1) to the off
position.
□Close the drain valve (2).
□Visually inspect air lines and fittings for leaks.
1
2
Operation

14
2 Starting the compressor
WARNING: Risk of bursting. If any unusual noise or
vibration is noticed, stop the air compressor immediately
and have it checked by a trained service technician.
NOTE: When using the regulator and other accessories,
refer to the manufacturer’s instructions.
□Plug the power cord into a proper receptacle.
□Turn the AUTO/OFF switch (1) to the AUTO
position, and allow the tank pressure to build.
The motor will stop when the tank pressure
reaches “cut-out” pressure.
□Adjust the regulator (2) to a PSI setting that
is needed for your application - be sure it
is within the safety standards required to
perform the task.
1
2
3 Checking the safety valve
DANGER: Do not tamper with the safety valve. Items
loosened from this device could fly up and hit you. Failure
to heed this warning could result in death or serious
personal injury. The safety valve automatically releases air
when the receiver pressure exceeds the preset maximum.
Check the valve before each day of use by pulling the ring
by hand.
WARNING: If air leaks after releasing the safety valve
ring or if the valve is stuck, do not use the air compressor
until the safety valve has been replaced. Using the air
compressor in this condition could result in serious
personal injury.
□Set the AUTO/OFF switch (1) to the AUTO
position, and wait for the tank to fill. The
compressor automatically shuts off when the
pressure reaches the preset maximum.
□Set the AUTO/OFF switch (1) to the off position.
□Pull the ring on the safety valve (2) for 20
seconds to release the air.
□Release the ring. Air stops escaping at
about 20 psi. If air continues to escape after
releasing the safety valve ring, discontinue
use and seek service before using the air
compressor again.
1
2
Operation (continued)

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4 Running the air compressor
WARNING: Always ensure the switch is in the OFF
position and regulator pressure gauge reads zero before
changing air tools or disconnecting the hose from the air
outlet. Failure to do so could result in possible serious
personal injury.
WARNING: Your tool may require more air consumption
than this air compressor is capable of providing. Check the
tool manual to avoid damage to the tool or risk personal
injury.
NOTE: Always use the minimum amount of air flow with
the pressure regulator knob. Using a higher pressure than
needed will drain air from the tank more rapidly and cause
the unit to cycle on more frequently.
□Rotate the pressure regulator knob (1) to
the desired line pressure. Turning the knob
clockwise (+) increases air pressure at the
outlet; turning counterclockwise (-) reduces air
pressure at the outlet.
□If using an inflation accessory, control the
amount of air flow with the pressure regulator
knob (1). Turning the knob fully counterclockwise
will completely stop the flow of air.
□When finished, always drain the tank and unplug
the unit. Never leave the unit plugged in and/or
running unattended.
1
Operation (continued)

16
5 Draining the tank
WARNING: Risk of unsafe operation. Air tanks contain
high pressure air. Keep face and other body parts away
from the drain outlet. Use eye protection [ANSI Z87.1 (CAN/
CSA Z94.3)] when draining, as debris can be kicked up
into the face.
WARNING: Risk from noise. Use ear protection (ANSI
S12.6 (S3.19), as air flow noise is loud when draining.
WARNING: Risk of bursting. Water will condense in the
air tank. If not drained, water will corrode and weaken the
air tank causing a risk of air tank rupture.
NOTE: All compressed air systems generate condensate
that accumulates in any drain point (e.g., tanks, filter,
after-coolers, dryers). This condensate contains lubricating
oil and/or substances which may be regulated and must
be disposed of in accordance with local, state, and federal
laws and regulations.
NOTE: If the drain valve is plugged, release all air
pressure. The valve can then be removed, cleaned, then
reinstalled.
NOTE: Risk of property damage. Drained water from the
air tank may contain oil and rust which can cause stains.
□Set the AUTO/OFF switch (1) to the off position.
□Slowly bleed the air from the compressor
tank by pulling the safety valve to allow the
pressure to escape from the tank until the
pressure is approximately 20 psi.
□Drain water from the tank by opening the drain
valve (2) on the bottom of the tank.
□After the water has been drained, close the
drain valve. The air compressor can now be
stored.
1
2
Operation (continued)

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Maintenance
GENERAL MAINTENANCE
□Condensate forms in the tank when
there is humidity in the air. Depending on
the environmental conditions, drain the
condensate daily and/or every hour. For
instructions, see Draining the tank on page 16.
□The safety valve automatically releases air
when the receiver pressure exceeds the preset
maximum.
□Inspect the tank annually for rust, pin holes,
or other imperfections that could cause it to
become unsafe.
□Avoid using solvents when cleaning plastic
parts. Most plastics are susceptible to damage
from various types of commercial solvents and
may be damaged by their use.
□Use clean cloths to remove dirt, dust, oil,
grease, etc.
LUBRICATION
This compressor requires oil to be in the crank case
in order to lubricate the pump for operation (see
REFILLING THE COMPRESSOR PUMP WITH OIL on page
11). It is also necessary to change this oil after the
first 10 hours of use and every 100 hours after that.
CLEANING THE AIR FILTER
From time to time, the air filter needs to be removed
and cleaned.
□Turn the air compressor OFF ( O ).
□Unplug the air compressor.
□Unsnap the air filter cover (1) to remove.
□Remove the air filter (2) from the air filter
housing (3).
□Blow compressed air through the air filter for 10-
15 seconds using an approved OSHA nozzle.
1
2
3
WARNING: When servicing, use only identical Industrial
Air Contractor replacement parts. Use of any other parts
may create a hazard or cause product damage.
WARNING: Always release all pressure, disconnect from
the power supply, and allow the unit to cool to the touch
before cleaning or making repairs on the air compressor.
WARNING: Do not at any time let brake fluids, gasoline,
petroleum-based products, penetrating oils, etc., come
in contact with plastic parts. Chemicals can damage,
weaken or destroy plastic which may result in serious
personal injury. Electric tools used on fiberglass material,
wallboard, spackling compounds, or plaster are subject to
accelerated wear and possible premature failure because
the fiberglass chips and grindings are highly abrasive to
bearings, brushes, commutators, etc. Consequently, we
do not recommended using this tool for extended work on
these types of materials. However, if you do work with any
of these materials, it is extremely important to clean the
tool using compressed air.

18
Maintenance (continued)
CHANGING THE OIL
When changing the pump oil, be sure to do the
following:
□Turn the unit off and unplug the power cord from
the receptacle.
□Allow the compressor time to cool if it has been
in operation.
□Open the drain valve (3) to bleed all the air from
the tank.
□Close the drain valve (3).
□Remove the oil fill cap/breather (1) on the pump.
□Remove the sight glass (2) with a box-end
wrench or socket. Drain the oil into a suitable
container and dispose of properly. The
compressor may need to be tipped slightly
towards the drain hole to allow all of the oil to
drain.
□Reattach the sight glass (2). Torque the sight
glass 10-12 inch lbs. when re-assembling. Be
sure the gasket is between the sight glass and
the pump crankcase.
□Refill the compressor pump with an air
compressor oil, such as SAE-30 non-detergent,
Semi Synthetic oil, at slow intervals until the oil
reaches the center of the red circle in the sight
glass (2). Use a SAE-10 during extreme winter
conditions.
1
2
3
Care and Cleaning
□Drain the air tank of moisture after operation.
□When not in use, store the compressor in a cool, dry place.
□Disconnect the air hose and hang open ends down to allow any moisture to drain.
□Protect the electrical cord and air hose from damage (such as being stepped on or run over). Wind them
loosely around the compressor handle.

19 industrialaircontractor.com
Please contact 1-888-895-4549 for further assistance.
Problem Possible Cause Solution
The compressor does not
run.
□There is a loss of power or
the motor is overheated.
□Check for proper use of extension cord.
□There is no power to the
unit.
□Check to be sure the unit is plugged in.
□The circuit breaker has
tripped or a fuse has blown
at the main power source.
□Check the fuse/breaker.
□The thermal overload
protector is actuated.
□Turn the air compressor OFF (O).
□Unplug the air compressor and wait until
the compressor cools down.
□Plug the air compressor into an approved
outlet.
□Turn the air compressor AUTO (I).
□The pressure switch is bad. □Bring the compressor to a service center.
□The compressor has reached
automatic shutoff pressure.
□Release the air from the tank until the
compressor restarts automatically.
The motor hums while
running slowly, or it does not
run at all.
□There is low voltage from
the power source.
□Call an electrician.
□The wrong gauge wire or
length of extension cord is
being used.
□Check for proper gauge wire and cord
length.
□There is a shorted or open
motor wiring.
□Bring the compressor to a service center.
□There is a defective check
valve or unloader.
□Bring the compressor to a service center.
The fuses blow or circuit
breaker trips repeatedly.
□The incorrect fuse type is
being used.
□Check for the proper fuse.
□Use a time-delay fuse. Disconnect other
electrical appliances from the circuit
or operate the compressor on its own
branch circuit.
□The wrong gauge wire or
length of extension cord
is used.
□Check for the proper gauge wire and
cord length.
□There is a defective check
valve or unloader.
□Bring the compressor to a service center.
Troubleshooting

20
Problem Possible Cause Solution
The thermal overload protector
cuts out repeatedly.
□There is low voltage from
the power source.
□Call an electrician.
□There is a lack of proper
ventilation, or the room
temperature is too high.
□Move the compressor to a well-ventilated
area.
□The wrong gauge wire or
length of extension cord is
being used.
□Check for proper gauge wire and cord
length.
The air receiver pressure
drops when the compressor
shuts off.
□The connections (fittings,
tubing, etc.) are loose and
leaking.
□Check all connections with a soap and
water solution and tighten.
□The drain valve is loose
or open.
□Tighten the drain valve.
□The check valve is leaking. □Bring the compressor to a service center.
There is excessive moisture
in the discharge air.
□There is excessive water in
the air tank.
□Drain the tank.
□The compressor is working
under a high humidity
environment.
□Move the compressor to an area of less
humidity; use an air line filter.
The compressor
continuously runs.
□The pressure switch is
defective.
□Bring the compressor to a service center.
□An excessive amount of air
is being used.
□Decrease the air usage; the compressor
is not large enough for the tool’s
requirement.
The air output is lower than
normal.
□The inlet valves are broken. □Bring the compressor to a service center.
□The connections (fittings,
tubing, etc.) are loose and
leaking.
□Tighten the connections.
Troubleshooting (continued)