Craftsman 919.72412 User manual

Owner’s Manual
Permanently Lubricated
Tank Mounted
AIR COMPRESSOR
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Repair Parts
Model No.
919.724120
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Sold by Sears Canada, Inc. Toronto, Ont. M5B 2B8
D24461 Rev. 5 6/25/02

2- ENG
D24461
FULL ONE YEAR WARRANTY ON AIR COMPRESSORS
If this air compressor fails due to a defect in material or workmanship within
one year from the date of purchase, RETURN IT TO THE NEAREST SEARS
SERVICE CENTER THROUGHOUT CANADA AND SEARS WILL REPAIR IT,
FREE OF CHARGE.
If this air compressor is used for commercial or rental purposes, the warranty
will apply for ninety days (90) from the date of purchase.
This Craftsman Air Compressor warranty gives you specific legal rights and
you may have other rights which vary from province to province.
Sears Canada, Inc., Toronto, Ont. M5B 2B8
TABLE OF CONTENTS
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SPECIFICATION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SAFETY GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DUTY CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-15
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
SERVICE AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .17-18
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-21
AIR COMPRESSOR DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
AIR COMPRESSOR PUMP DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . .24
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
FRANÇAIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-51
HOW TO ORDER REPAIR PARTS . . . . . . . . . . . . . . . . . . . .Back Cover
WARRANTY

3- ENG D24461
SPECIFICATION CHART
Model No. 919-724120
Max. Developed HP 3
Bore 1 7/8”
Stroke 1 1/4”
Voltage-Single Phase 120
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
SCFM @ 40 psig 4.9
SCFM @ 90 psig 3.5
SAFETY GUIDELINES - DEFINITIONS
Indicates an
imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, could result in
death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, may result in
minor or moderate injury.
Used without the
safety alert symbol
indicates a potentially hazardous
situation which, if not avoided, may
result in property damage.
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 sections.
IMPORTANT SAFETY INSTRUCTIONS
Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known (to the State of California) to
cause cancer, birth defects or other reproductive harm. Some example of these chemicals are:
●lead from lead-based paints
●crystalline silica from bricks and cement and other masonry products
●arsenic and chromium from chemically-treated lumber
Your risk from these exposures varies, 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, always wear MSHA/NIOSH approved, properly fitting face mask or respirator when using
such tools.
When using air tools, basic safety precautions should always be followed to reduce the risk of of
personal injury.
SAVE THESE INSTRUCTIONS
IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN
SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL
WARNINGS AND OPERATING INSTRUCTIONS BEFORE USING THIS EQUIPMENT.

4- ENG
D24461
RISK OF EXPLOSION OR FIRE
ALWAYS OPERATE THE COMPRESSOR IN A
WELL VENTILATED AREA FREE OF
COMBUSTIBLE MATERIALS, GASOLINE OR
SOLVENT VAPORS.
IF SPRAYING FLAMMABLE MATERIALS,
LOCATE COMPRESSOR AT LEAST 20 FEET
AWAY FROM SPRAY AREA. AN ADDITIONAL
LENGTH OF HOSE MAY BE REQUIRED.
STORE FLAMMABLE MATERIALS IN A
SECURE LOCATION AWAY FROM
COMPRESSOR.
NEVER PLACE OBJECTS AGAINST OR ON
TOP OF COMPRESSOR. OPERATE
COMPRESSOR IN AN OPEN AREA AT LEAST
12 INCHES AWAY FROM ANY WALL OR
OBSTRUCTION THAT WOULD RESTRICT THE
FLOW OF FRESH AIR TO THE VENTILATION
OPENINGS.
OPERATE COMPRESSOR IN A CLEAN, DRY,
WELL VENTILATED AREA. DO NOT OPERATE
UNIT INDOORS OR IN ANY CONFINED AREA.
ALWAYS REMAIN IN ATTENDANCE WITH THE
PRODUCT WHEN IT IS OPERATING.
ALWAYS DISCONNECT ELECTRICAL POWER
BY MOVING PRESSURE SWITCH LEVER TO
THE OFF POSITION AND DRAIN TANK DAILY
OR AFTER EACH USE.
HOW TO PREVENT IT
IT IS NORMAL FOR ELECTRICAL CONTACTS
WITHIN THE MOTOR AND PRESSURE SWITCH
TO SPARK.
IF ELECTRICAL SPARKS FROM
COMPRESSOR COME INTO CONTACT WITH
FLAMMABLE VAPORS, THEY MAY IGNITE,
CAUSING FIRE OR EXPLOSION.
RESTRICTING ANY OF THE COMPRESSOR
VENTILATION OPENINGS WILL CAUSE
SERIOUS OVERHEATING AND COULD CAUSE
FIRE.
UNATTENDED OPERATION OF THIS
PRODUCT COULD RESULT IN PERSONAL
INJURY OR PROPERTY DAMAGE. TO
REDUCE THE RISK OF FIRE, DO NOT ALLOW
THE COMPRESSOR TO OPERATE
UNATTENDED.
WHAT CAN HAPPEN
HAZARD

5- ENG D24461
RISK OF BURSTING
AIR TANK: THE FOLLOWING CONDITIONS COULD LEAD TO A WEAKENING OF THE
TANK, AND RESULT IN A VIOLENT TANK EXPLOSION AND COULD CAUSE
PROPERTY DAMAGE OR SERIOUS INJURY.
HOW TO PREVENT IT
WHAT CAN HAPPEN
DRAIN TANK DAILY OR AFTER EACH USE. IF
TANK DEVELOPS A LEAK, REPLACE IT
IMMEDIATELY WITH A NEW TANK OR REPLACE
THE ENTIRE COMPRESSOR.
NEVER DRILL INTO, WELD, OR MAKE ANY
MODIFICATIONS TO THE TANK OR ITS
ATTACHMENTS.
THE TANK IS DESIGNED TO WITHSTAND
SPECIFIC OPERATING PRESSURES. NEVER
MAKE ADJUSTMENTS OR PARTS
SUBSTITUTIONS TO ALTER THE FACTORY
SET OPERATING PRESSURES.
FOR ESSENTIAL CONTROL OF AIR
PRESSURE,YOU MUST INSTALL A PRESSURE
REGULATOR AND PRESSURE GAUGE TO THE
AIR OUTLET (IF NOT EQUIPPED) OF YOUR
COMPRESSOR. FOLLOW THE EQUIPMENT
MANUFACTURERS RECOMMENDATION AND
NEVER EXCEED THE MAXIMUM ALLOWABLE
PRESSURE RATING OF ATTACHMENTS. NEVER
USE COMPRESSOR TO INFLATE SMALL LOW-
PRESSURE OBJECTS SUCH AS CHILDREN’S
TOYS, FOOTBALLS, BASKETBALLS, ETC.
1. FAILURE TO PROPERLY DRAIN
CONDENSED WATER FROM THE
TANK, CAUSING RUST AND THINNING
OF THE STEEL TANK.
2. MODIFICATIONS OR ATTEMPTED
REPAIRS TO THE TANK.
3. UNAUTHORIZED MODIFICATIONS TO
THE UNLOADER VALVE, SAFETY
VALVE, OR ANY OTHER COMPONENTS
WHICH CONTROL TANK PRESSURE.
4. EXCESSIVE VIBRATION CAN WEAKEN
THE AIR TANK AND CAUSE RUPTURE
OR EXPLOSION.
ATTACHMENTS & ACCESSORIES:
EXCEEDING THE PRESSURE RATING OF AIR
TOOLS, SPRAY GUNS, AIR OPERATED
ACCESSORIES, TIRES AND OTHER
INFLATABLES CAN CAUSE THEM TO
EXPLODE OR FLY APART, AND COULD
RESULT IN SERIOUS INJURY.
RISK FROM FLYING OBJECTS
HOW TO PREVENT IT
WHAT CAN HAPPEN
THE COMPRESSED AIR STREAM CAN CAUSE
SOFT TISSUE DAMAGE TO EXPOSED SKIN
AND CAN PROPEL DIRT, CHIPS, LOOSE
PARTICLES AND SMALL OBJECTS AT HIGH
SPEED, RESULTING IN PROPERTY DAMAGE
OR PERSONAL INJURY.
ALWAYS WEAR ANSI Z87.1 APPROVED
SAFETY GLASSES WITH SIDE SHIELDS WHEN
USING THE COMPRESSOR.
NEVER POINT ANY NOZZLE OR SPRAYER
TOWARD ANY PART OF THE BODY OR AT
OTHER PEOPLE OR ANIMALS.
ALWAYS TURN THE COMPRESSOR OFF AND
BLEED PRESSURE FROM THE AIR HOSE AND
TANK BEFORE ATTEMPTING MAINTENANCE,
ATTACHING TOOLS OR ACCESSORIES.
HAZARD
HAZARD

6- ENG
D24461
HOW TO PREVENT IT
WHAT CAN HAPPEN
HOW TO PREVENT IT
WHAT CAN HAPPEN
RISK TO BREATHING
AIR OBTAINED DIRECTLY FROM THE
COMPRESSOR SHOULD NEVER BE USED TO
SUPPLY AIR FOR HUMAN CONSUMPTION. IN
ORDER TO USE AIR PRODUCED BY THIS
COMPRESSOR FOR BREATHING, SUITABLE
FILTERS AND IN-LINE SAFETY EQUIPMENT
MUST BE PROPERLY INSTALLED. IN-LINE
FILTERS AND SAFETY EQUIPMENT USED IN
CONJUNCTION WITH THE COMPRESSOR
MUST BE CAPABLE OF TREATING AIR TO ALL
APPLICABLE LOCAL AND FEDERAL CODES
PRIOR TO HUMAN CONSUMPTION.
WORK IN AN AREA WITH GOOD CROSS-
VENTILATION. READ AND FOLLOW THE
SAFETY INSTRUCTIONS PROVIDED ON THE
LABEL OR SAFETY DATA SHEETS FOR THE
MATERIAL YOU ARE SPRAYING. USE A
NIOSH/MSHA APPROVED RESPIRATOR
DESIGNED FOR USE WITH YOUR SPECIFIC
APPLICATION.
THE COMPRESSED AIR DIRECTLY FROM
YOUR COMPRESSOR IS NOT SAFE FOR
BREATHING. THE AIR STREAM MAY
CONTAIN CARBON MONOXIDE, TOXIC
VAPORS, OR SOLID PARTICLES FROM THE
TANK. BREATHING THESE CONTAMINANTS
CAN CAUSE SERIOUS INJURY OR DEATH.
SPRAYED MATERIALS SUCH AS PAINT, PAINT
SOLVENTS, PAINT REMOVER, INSECTICIDES,
WEED KILLERS, MAY CONTAIN HARMFUL
VAPORS AND POISONS.
RISK OF ELECTRICAL SHOCK
NEVER OPERATE THE COMPRESSOR
OUTDOORS WHEN IT IS RAINING OR IN WET
CONDITIONS.
NEVER OPERATE COMPRESSOR WITH
PROTECTIVE COVERS REMOVED OR
DAMAGED.
ANY ELECTRICAL WIRING OR REPAIRS
REQUIRED ON THIS PRODUCT SHOULD BE
PERFORMED BY AUTHORIZED SERVICE
CENTER PERSONNEL IN ACCORDANCE WITH
NATIONAL AND LOCAL ELECTRICAL CODES.
MAKE CERTAIN THAT THE ELECTRICAL
CIRCUIT TO WHICH THE COMPRESSOR IS
CONNECTED PROVIDES PROPER
ELECTRICAL GROUNDING, CORRECT
VOLTAGE AND ADEQUATE FUSE
PROTECTION.
YOUR AIR COMPRESSOR IS POWERED BY
ELECTRICITY. LIKE ANY OTHER
ELECTRICALLY POWERED DEVICE, IF IT IS
NOT USED PROPERLY IT MAY CAUSE
ELECTRIC SHOCK.
REPAIRS ATTEMPTED BY UNQUALIFIED
PERSONNEL CAN RESULT IN SERIOUS
INJURY OR DEATH BY ELECTROCUTION.
ELECTRICAL GROUNDING: FAILURE TO
PROVIDE ADEQUATE GROUNDING TO THIS
PRODUCT COULD RESULT IN SERIOUS
INJURY OR DEATH FROM ELECTROCUTION.
SEE GROUNDING INSTRUCTIONS.
HAZARD
HAZARD

7- ENG D24461
HOW TO PREVENT IT
WHAT CAN HAPPEN
RISK OF BURNS
TOUCHING EXPOSED METAL SUCH AS THE
COMPRESSOR HEAD OR OUTLET TUBES,
CAN RESULT IN SERIOUS BURNS.
NEVER TOUCH ANY EXPOSED METAL PARTS
ON COMPRESSOR DURING OR IMMEDIATELY
AFTER OPERATION. COMPRESSOR WILL
REMAIN HOT FOR SEVERAL MINUTES AFTER
OPERATION.
DO NOT REACH AROUND PROTECTIVE
SHROUDS OR ATTEMPT MAINTENANCE
UNTIL UNIT HAS BEEN ALLOWED TO COOL.
HOW TO PREVENT IT
WHAT CAN HAPPEN
RISK FROM MOVING PARTS
NEVER OPERATE THE COMPRESSOR WITH
GUARDS OR COVERS WHICH ARE DAMAGED
OR REMOVED.
ANY REPAIRS REQUIRED ON THIS PRODUCT
SHOULD BE PERFORMED BY AUTHORIZED
SERVICE CENTER PERSONNEL.
MOVING PARTS SUCH AS THE PULLEY,
FLYWHEEL AND BELT CAN CAUSE SERIOUS
INJURY IF THEY COME INTO CONTACT WITH
YOU OR YOUR CLOTHING.
ATTEMPTING TO OPERATE COMPRESSOR
WITH DAMAGED OR MISSING PARTS OR
ATTEMPTING TO REPAIR COMPRESSOR
WITH PROTECTIVE SHROUDS REMOVED CAN
EXPOSE YOU TO MOVING PARTS AND CAN
RESULT IN SERIOUS INJURY.
HOW TO PREVENT IT
WHAT CAN HAPPEN
RISK OF FALLING
A PORTABLE COMPRESSOR CAN FALL FROM
A TABLE, WORKBENCH OR ROOF CAUSING
DAMAGE TO THE COMPRESSOR AND
COULD RESULT IN SERIOUS INJURY OR
DEATH TO THE OPERATOR.
ALWAYS OPERATE COMPRESSOR IN A
STABLE SECURE POSITION TO PREVENT
ACCIDENTAL MOVEMENT OF THE UNIT. NEVER
OPERATE COMPRESSOR ON A ROOF OR
OTHER ELEVATED POSITION. USE
ADDITIONAL AIR HOSE TO REACH HIGH
LOCATIONS.
HAZARD
HAZARD
HAZARD

8- ENG
D24461
HAZARD
HOW TO PREVENT IT
WHAT CAN HAPPEN
RISK OF UNSAFE OPERATION
REVIEW AND UNDERSTAND ALL
INSTRUCTIONS AND WARNINGS IN THIS
MANUAL.
BECOME FAMILIAR WITH THE OPERATION
AND CONTROLS OF THE AIR COMPRESSOR.
KEEP OPERATING AREA CLEAR OF ALL
PERSONS, PETS, AND OBSTACLES.
KEEP CHILDREN AWAY FROM THE AIR
COMPRESSOR AT ALL TIMES.
DO NOT OPERATE THE PRODUCT WHEN
FATIGUED OR UNDER THE INFLUENCE OF
ALCOHOL OR DRUGS. STAY ALERT AT ALL
TIMES.
NEVER DEFEAT THE SAFETY FEATURES OF
THIS PRODUCT.
EQUIP AREA OF OPERATION WITH A FIRE
EXTINGUISHER.
DO NOT OPERATE MACHINE WITH MISSING,
BROKEN, OR UNAUTHORIZED PARTS.
UNSAFE OPERATION OF YOUR AIR
COMPRESSOR COULD LEAD TO SERIOUS IN-
JURY OR DEATH TO YOU OR OTHERS.
HOW TO PREVENT IT
WHAT CAN HAPPEN
RISK OF PROPERTY DAMAGE WHEN TRANSPORTING COMPRESSOR
OIL CAN LEAK OR SPILL AND COULD
RESULT IN FIRE OR BREATHING HAZARD,
SERIOUS INJURY OR DEATH CAN RESULT.
OIL LEAKS WILL DAMAGE CARPET, PAINT OR
OTHER SURFACES IN VEHICLES OR
TRAILERS.
ALWAYS PLACE COMPRESSOR ON A
PROTECTIVE MAT WHEN TRANSPORTING TO
PROTECT AGAINST DAMAGE TO VEHICLE
FROM LEAKS. REMOVE COMPRESSOR FROM
VEHICLE IMMEDIATELY UPON ARRIVAL AT
YOUR DESTINATION.
(Fire, Inhalation, Damage to Vehicle Surfaces)
HAZARD

9- ENG D24461
GLOSSARY
DUTY CYCLE
Air compressors should be operated
on not more than a 50% duty cycle.
This means an air compressor that
pumps air more than 50% of one
hour is considered misuse, because
ACCESSORIES
Become familiar with these terms
before operating the unit.
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per
minute; a unit of measure of air
delivery.
PSIG: Pounds per square inch
gauge; a unit of measure of pressure.
Code Certification: Products that
bear one or more of the following
marks: UL, CUL, ETL, CETL, have
been evaluated by OSHA certified
independent safety laboratories and
meet the applicable Underwriters
Laboratories Standards for Safety.
Cut-In Pressure: While the motor is
off, air tank pressure drops as you
continue to use your accessory.
the air compressor is undersized for
the required air demand. Maximum
compressor pumping time per hour is
30 minutes.
When the tank pressure drops to a
certain low level the motor will restart
automatically. The low pressure at
which the motor automatically
restarts is called “cut-in” pressure.
Cut-Out Pressure: When an air
compressor is turned on and begins
to run, air pressure in the air tank
begins to build. It builds to a certain
high pressure before the motor
automatically shuts off - protecting
your air tank from pressure higher
than its capacity. The high pressure
at which the motor shuts off is called
“cut-out” pressure.
Branch Circuit: Circuit carrying
electricity from electrical panel to
outlet.
This unit is capable of powering the following Accessories. The accessories are
available through the current Power and Hand Tool Catalog or full-line Sears
stores.
Accessories
• In Line Filter
• Tire Air Chuck
• Quick Connector Sets (various
sizes)
• Air Pressure Regulators
• Oil Fog Lubricators
• Air Hose: 1/4", 3/8" or 1/2" I.D. in
various lengths
Refer to the selection chart located
on the unit to select the tools this unit
is capable of powering.

ASSEMBLY
Tools Required for
Assembly
1 - 9/16” socket or open end
wrench
1 - 3/8” socket
Contents of Carton
1 - Air Compressor
2 - Wheels
2 - Shoulder Bolts, 3/8-16
2 - Hex Nuts, 3/8-16
2 - Molded Foot Bumpers
1 - Handle
1 - Handle Grip
2 - Screws, #10-16 x 1.00
It will be necessary
to brace or support
one side of the outfit when
installing the wheels because the
compressor will have a tendency to
tip over.
3. Install one shoulder bolt and one
nut for each wheel. Tighten
securely. The outfit will sit level
if the wheels are properly
installed.
4. Clean and dry underside of air
tank leg opposite wheels.
Remove the protective strip from
the adhesive backed molded foot
bumpers. Attach the foot
bumpers to the bottom of leg on
each end. Press firmly into
place.
Installing Handles,
Wheels, and Molded Foot
Bumpers
The wheels
and handle
do not provide adequate clearance,
stability or support for pulling the
unit up and down stairs or steps.
The unit must be lifted, or pushed
up a ramp.
1. Submerge handle grip into warm
soapy water to make installation
easier. Remove handle grip from
soapy water and slide onto
handle.
2. Slide handle through holes in
compressor saddle onto tabs.
Secure with screws, one on each
side.
Wheel
Shoulder Bolt
Nut
Handle Screw
Compressor Saddle
Tab
Molded Foot Bumpers
10- ENG
D24461

11- ENG D24461
IMPORTANT: The outlet being used
must be installed and grounded in
accordance with all local codes and
ordinances.
2. Make sure the outlet being used
has the same configuration as
the grounded plug. DO NOT
USE AN ADAPTER. See
illustration.
3. Inspect the plug and cord before
each use. Do not use if there are
signs of damage.
4. If these grounding instructions
are not completely understood,
or if in doubt as to whether the
compressor is properly
grounded, have the installation
checked by a qualified
electrician.
IMPROPER
GROUNDING CAN
RESULT IN ELECTRICAL SHOCK.
Do not modify the plug provided. If
it does not fit the available outlet, a
correct outlet should be installed
by a qualified electrician.
Repairs to the cord set or plug
MUST be made by a qualified
electrician.
INSTALLATION
GROUNDING INSTRUCTIONS
RISK OF
ELECTRICAL
SHOCK. In the event of a short
circuit, grounding reduces the risk
of shock by providing an escape
wire for the electric current. This
air compressor must be properly
grounded.
The portable air compressor is
equipped with a cord having a
grounding wire with an appropriate
grounding plug (see following
illustrations). The plug must be used
with an outlet that has been installed
and grounded in accordance with all
local codes and ordinances.
1. The cord set and plug with this
unit contains a grounding pin.
This plug MUST be used with a
grounded outlet.
HOW TO SET UP YOUR
UNIT
Location of the Air Compressor
Locate the air compressor in a clean,
dry and well ventilated area. The air
compressor should be located at
least 12" away from the wall or other
obstructions that will interfere with
the flow of air. The air compressor
pump and shroud are designed to
allow for proper cooling. The
ventilation openings on the
compressor are necessary to
maintain proper operating
temperature. Do not place rags or
other containers on or near these
openings.
Grounding Pin
Grounded
Outlets
Plug

12- ENG
D24461
Extension Cords
Use extra air hose instead of an
extension cord to avoid voltage drop
and power loss to the motor, and to
prevent overheating.
If an extension cord must be used, be
sure it is:
• a 3-wire extension cord that has
a 3-blade grounding plug, and a
3-slot receptacle that will accept
the plug on the product
• in good condition
• no longer than 50 feet
• 12 gauge (AWG) or larger. (Wire
size increases as gauge number
decreases. 10 AWG and 8 AWG
may also be used. DO NOT USE
14 OR 16 AWG.)
Voltage and Circuit Protection
Refer to the Parts Manual for the
voltage and minimum branch circuit
requirements.
Certain air compressors can be
operated on a 15 amp circuit if the
following conditions are met.
1. Voltage supply through branch
circuit is 15 amps.
2. Circuit is not used to supply any
other electrical needs (lights,
appliances, etc.).
3. Extension cords comply with
specifications.
4. Circuit is equipped with a 15
amp circuit breaker or 15 amp
time delay fuse. NOTE: If
compressor is connected to a
circuit protected by fuses, use
only time delay fuses. Time delay
fuses should be marked "D" in
Canada and "T" in the US.
If any of the above conditions cannot
be met, or if operation of the
compressor repeatedly causes
interruption of the power, it may be
necessary to operate it from a 20
amp circuit. It is not necessary to
change the cord set.

13- ENG D24461
Outlet Pressure Gauge: The outlet
pressure gauge indicates the air
pressure available at the outlet side
of the regulator. This pressure is
controlled by the regulator and is
always less than or equal to the tank
pressure.
Tank Pressure Gauge: The tank
pressure gauge indicates the reserve
air pressure in the tank.
Regulator: Controls the air pressure
shown on the outlet pressure gauge.
Pull the knob out and turn clockwise
to increase pressure and
counterclockwise to decrease
pressure. When the desired pressure
is reached push knob in to lock in
place.
Universal Quick-Connect Body:
The universal quick-connect body
accepts the three most popular styles
of quick-connect plugs- Industrial,
automotive (Tru-flate), and ARO. One
hand push-to-connect operation
makes connections simple and easy.
Description of Operation
Become familiar with these controls
before operating the unit.
On/Auto/Off Switch: Turn this switch
"ON" to provide automatic power to
the pressure switch and "OFF" to
remove power at the end of each
use.
Pressure Switch: The pressure
switch automatically starts the motor
when the air tank pressure drops
below the factory set “cut-in”
pressure. It stops the motor when the
air tank pressure reaches the factory
set “cut-out” pressure.
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).
OPERATION
Know Your Air Compressor
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING
YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with
the location of various controls and adjustments. Save this manual for future
reference.
Safety Valve
Pressure
Switch
Regulator
On/Auto/Off
Switch
Tank
Pressure Gauge
Outlet
Pressure Gauge
Universal
Quick
Connect
Bodies

14- ENG
D24461
Drain 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.
Cooling System (not shown): This
compressor contains an advanced
design cooling system. At the heart
of this cooling system is an
engineered fan. It is perfectly normal
for this fan to blow air through the
vent holes in large amounts. You
know that the cooling system is
working when air is being expelled.
Air Compressor Pump (not shown):
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.
Check Valve: 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.
Before Starting
Break-in Procedure
Serious damage
may result if the
following break-in instructions are
not closely followed.
This procedure is required before the
air compressor is put into service and
when the check valve or a complete
compressor pump has been
replaced.
1. Make sure the On/Auto/Off lever
is in the "OFF" position.
NOTE: Pull coupler back until it clicks
to prevent air from escaping through
the quick connect.
2.
Plug the power cord into the
correct branch circuit receptacle.
(Refer to Voltage and Circuit
Protection paragraph in the
Installation section of this
manual.)
3. Open the drain valve fully
(counter-clockwise) to permit air
to escape and prevent air
pressure build up in the air tank
during the break-in period.
4. Move the On/Auto/Off lever to
"ON/AUTO" position. The
compressor will start.
5. Run the compressor for 15
minutes. Make sure the drain
valve is open and there is
minimal air pressure build-up in
tank.
6. After 15 minutes, close the drain
valve (clockwise). The air receiver
will fill to "cut-out" pressure and
the motor will stop.
The compressor is now ready for use.
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
Drain
Valve
Check Valve

15- ENG D24461
How to Start:
1. Turn the On/Auto/Off lever to
"AUTO" and allow tank pressure
to build. Motor will stop when
tank pressure reaches "cut-out"
pressure.
2. Pull the regulator knob out and
turn clockwise to increase
pressure. When the desired
pressure is reached push knob in
to lock in place. The compressor
is ready for use.
NOTE: Always operate the air
compressor in well-ventilated areas
free of gasoline or other combustible
vapors. If the compressor is being
used to operate a sprayer DO NOT
place near the spray area.
Before Each Start-Up:
1. Place On/Auto/Off lever to
"OFF" and close air regulator.
2. Pull regulator knob out, turn
counter-clockwise until it stops.
Push knob in to lock in place.
3. Attach hose and accessories.
NOTE: The hose or accessory
will require a quick connect plug
if the air outlet is equipped with a
quick connect socket.
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.

16- ENG
D24461
MAINTENANCE
Customer Responsibilities
Daily or
after
each
use
Before
each
use
●●
Check Safety Valve
Drain Tank
NOTE: See "Operation" section for
the location of controls.
Unit cycles
automatically when
power is on. When performing
maintenance, you may be exposed
to voltage sources, compressed
air, or moving parts. Personal
injuries can occur. Before
performing any maintenance or
repair, disconnect power source
from the compressor and bleed off
all air pressure.
To Check Safety Valve
If the safety valve
does not work
properly, over-pressurization may
occur, causing air tank rupture or
an explosion.
1. Before starting compressor, pull
the ring on the safety valve to
make sure that the safety valve
operates freely. If the valve is
stuck or does not operate
smoothly, it must be replaced
with the same type of valve.
To Drain Tank
1. Set the On/Auto/Off lever to
"OFF".
2. Pull the regulator knob out and
turn counter-clockwise to set the
outlet pressure to zero.
3. Remove the air tool or
accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
5. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
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.
6. After the water has been drained,
close the drain valve (clockwise).
The air compressor can now be
stored.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, the
reinstalled.

17- ENG D24461
4. Unscrew the check valve (turn
counterclockwise) using a socket
wrench.
5. Make sure the valve disc moves
freely inside the check valve and
the spring holds the disc in the
upper, closed position. The
check valve may be cleaned with
a solvent, such as paint and
varnish remover.
6. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
7. Replace the outlet tube and
tighten the nut.
8. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
SERVICE AND ADJUSTMENTS
Unit cycles
automatically when
power is on. When doing
Maintenance, you may be exposed
to voltage sources, compressed air
or moving parts. Personal injuries
can occur. Before performing any
Maintenance or repair, unplug the
compressor and bleed off all air
pressure.
ALL MAINTENANCE AND REPAIR
OPERATIONS NOT LISTED MUST
BE PERFORMED BY TRAINED
SERVICE TECHNICIAN.
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
To Replace or Clean Check
Valve
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug outfit.
3. Loosen the nut on the outlet tube
and move the outlet tube to the
side.
Outlet Tube
Check
Valve
Nut

18- ENG
D24461
STORAGE
Before you store the air compressor,
make sure you do the following:
1. Review the "Maintenance"
section on the preceding pages
and perform scheduled
maintenance as necessary.
2. Set the On/Auto/Off lever to
"OFF".
3. Turn the regulator
counterclockwise and set the
outlet pressure to zero.
4. Remove the air tool or
accessory.
5. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
6. Drain water from air tank by
opening drain valve on bottom of
tank.
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.
7. After the water has been drained,
close the drain or drain valve.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, then
reinstalled.
8. Protect the electrical cord and air
hose from damage (such as
being stepped on or run over).
Wind them loosely around the
compressor handle. (If so
equipped)
Store the air compressor in a clean
and dry location.
NOTE: Arrow indicates flow of air.
Make sure it is pointing in the
direction of air flow.
7. Reapply pipe sealant to gauges
and quick connect.
8. Reassemble gauges and quick
connect. Orient gauges to read
correctly. Tighten quick connect
with wrench.
Regulator
Arrow
To Replace Regulator
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug outfit.
3. Using an adjustable wrench
remove the gauges and quick
connect from the regulator.
4. Remove the regulator.
5. Apply pipe sealant tape to the
nipple on the standpipe.
6. Assemble the regulator and
orient as shown.

19- ENG D24461
TROUBLESHOOTING
Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or
compressed air sources. Personal injury may occur. Prior to attempting
any repairs, unplug the air compressor and bleed off all air tank air
pressure.
PROBLEM CAUSE CORRECTION
Pressure switch does not
shut off motor when
compressor reaches "cut-
out" pressure.
Pressure switch "cut-out"
too high.
Move On/Auto/Off lever to
the "OFF" position, if the
outfit does not shut off
contact a Trained Service
Technician.
Contact a Trained Service
Technician.
Excessive tank
pressure - safety
valve pops off.
Tube fittings are not tight
enough.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water
solution. Do Not
Overtighten.
Air leaks at
fittings.
Air leaks in air
tank or at air
tank welds.
Defective air tank. Air tank must be replaced.
Do not repair the leak.
Do not drill into, weld or
otherwise modify air tank
or it will weaken. The tank
can rupture or explode.
Air leaks
between head
and valve plate.
Leaking seal. Contact a Trained Service
Technician.
Possible defect in safety
valve.
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced.
Air leak from
safety valve.
Possible defect in safety
valve.
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced.
Knocking Noise.

20- ENG
D24461
Regulator will
not shut off air
outlet.
Damaged regulator Replace
PROBLEM CAUSE CORRECTION
It is normal for "some"
pressure drop to occur.
If there is an excessive
amount of pressure drop
when the accessory is used,
adjust the regulator following
the instructions in the
"Description of Operation"
paragraph in the "Operation
Section.
NOTE: Adjust the regulated
pressure under flow
conditions (while accessory
is being used).
Compressor is
not supplying
enough air to
operate
accessories.
Prolonged excessive use of
air.
Compressor is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Decrease amount of air
usage.
Check the accessory air
requirement. If it is higher
than the SCFM or pressure
supplied by your air
compressor, you need a
larger compressor.
Check and replace if
required.
Remove and clean, or
replace.
Tighten fittings.
Damaged regulator Replace
Regulator knob
has continuous
air leak.
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.