Craftsman 919.72427 User manual

Owner’s Manual
Permanently Lubricated
Twin V
2-Stage
Stationary
AIR COMPRESSOR
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Repair Parts
Model No.
919.724270
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Sold by Sears Canada, Inc. Toronto, Ont. M5B 2B8
D24450 Rev. 3 9/20/04

2- ENG
D24450
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-DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .3
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . .3-8
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DUTY CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-15
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-17
SERVICE AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-22
REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-27
HOW TO ORDER REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
WARRANTY

3- ENG D24450
SPECIFICATION CHART
Model No. 919-724270
Max. Developed HP 7
Bore 2.375
Stroke-High Pressure .54"
Low Pressure 1.45"
Voltage-Single Phase 240
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity - Gallons 60
Approximate Cut-in Pressure 145
Approximate Cut-out Pressure 175
SCFM@ 40 psig 9.6
SCFM@ 90 psig 9.0
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:
Glead from lead-based paints
Gcrystalline silica from bricks and cement and other masonry products
Garsenic 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
D24450
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 D24450
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
D24450
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 D24450
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
D24450
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 D24450
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.
Accessories
• In Line Filter
• Tire Air Chuck
• Quick Connector Sets
(various sizes)
Refer to the selection chart located
on the unit to select the tools this unit
is capable of powering.
The accessories and tools are
available through the current Power
and Hand Tool Catalog or full-line
Sears stores.
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.
• Air Pressure Regulators
• Oil Fog Lubricators
• Air Hose:
1/4", 3/8" OR 1/2" I.D.
in various lengths
the air compressor is undersized for
the required air demand. Maximum
compressor pumping time per hour is
30 minutes.

10- ENG
D24450
to a solid, level surface.
Hardware needed:
4 - Concrete anchors
4 - 3/8" Lag screw to fit
concrete anchors (not
supplied)
4 - 5/8" Washer (found in parts
bag) shims (if needed)
1. Place the air compressor on on a
solid, level surface.
2. Mark the surface using the holes
in the air compressor feet as a
template.
3. Drill holes in the surface for the
concrete anchors. Install
concrete anchors.
3. Line-up holes in surface with
holes in air compressor feet.
INSTALLATION
HOW TO SET UP YOUR
UNIT
Location of the Air Compressor
• Locate the air compressor in a
clean, dry, and well ventilated
area.
• Located the air compressor at
least 12" 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.
NOTE: Long lengths of electrical
wiring could cause power loss to
the motor.
• The air filter must be kept clear
of obstructions which could
reduce air flow to the air
compressor.
Anchoring of the Air
Compressor
Excessive Vibration
can weaken the air
tank and cause an explosion. The
compressor must be properly
mounted.
The air compressor MUST be bolted
3/8" Lag
Screw
(not supplied)
5/8" Washer
(supplied)
Shim Under
Washer
(not supplied) Concrete Anchor
(not supplied)
Surface Line
ASSEMBLY
Tools Required for Assembly
1 - 9/16" socket or open end wrench
Electric drill
Unpacking
1. Remove all packaging.
It may be
necessary to brace
or support one side of the outfit
when removing the pallet because
the air compressor will have a
tendency to tip.
2. Remove and discard the (4)
screws and washers holding the
compressor to the pallet.
3. With the help of another person
carefully remove air compressor
from pallet and place on a level
surface.
Contents of Carton
1 - Air Compressor
1 - Parts bag containing:
1 - Operator’s Manual
1 - Parts Manual
4 - 5/8" Washers

11- ENG D24450
2. Place the (4) washers (supplied)
between the floor and air
compressor feet. If needed, solid
shims may be placed between
the washers and floor to evenly
distribute weight on all four feet.
See next figure.
3. Place the (4) 3/8" lag screws
through the air compressor feet,
washers, shims, and into the
anchors.
4. Torque 3/8" lag screws to 7-10
ft.-lbs.
Wiring Instructions
RISK OF
ELECTRICAL
SHOCK. Improper electrical
grounding can result in electrical
shock. The wiring should be done
by a qualified electrician
A qualified electrician needs to knows
the following before wiring:
1. The amperage rating of the
electrical box should be
adequate. Refer to the
Specification Chart, in the parts
manual, for this information.
2. The supply line should have the
same electrical characteristics
(voltage, cycle, phase) as the
motor. Refer to the motor
nameplate, on side of motor, for
this information.
NOTE: The wiring must be the same
as the motor nameplate voltage plus
or minus 10%. Refer to local codes
for recommended wire sizes, correct
wire size, and maximum wire run;
undersize wire causes high amp draw
and overheating to the motor.
Electrical wiring
must be located
away from hot surfaces such as
manifold assembly, compressor
outlet tubes, heads, or cylinders.
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. 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.
GROUNDING INSTRUCTIONS
This product should be connected to
a metallic, permanent wiring system,
of an equipment-grounding terminal
or lead on the product.
Air Distribution System
Plastic or PVC pipe
is not designed for
use with compressed air.
Regardless of its indicated
pressure rating, plastic pipe can
burst from air pressure. Use only
metal pipe for air distribution lines.
The next figure represents a typical
air distribution system. The following
are tips to remember when setting up
the air compressor’s air distribution
system.

12- ENG
D24450
DRAIN
TRAP
DRAIN
TRAPS
DRAIN
LEGS
MOISTURE
SEPARATOR
AND TRAP
DIRT
LEG
DIRT
LEG
LUBRICATOR
REGULATOR
FILTER
AIR DISCHARGE
VALVE
LUBRICATOR
MAIN DISTRIBUTION AIR LINES
Slope pipe in direction of air flow.
Water condensate flows along
bottom of pipe to drain legs,
preventing it from entering feeder
lines.
REGULATOR
FLEXIBLE
COUPLING
DRAIN COCK
VALVE
TYPICAL COMPRESSED
AIR DISTRIBUTION SYSTEM
AIR FLOW AIR FLOW
FEEDER
LINES
SLOPE
WITH AIR FLOW
AIR USAGE
LINES
AIR
COMPRESSOR
• Use pipe that is the same size as
the air tank outlet. Piping that is
too small will restrict the flow of
air.
• If piping is over 100 feet long,
use the next larger size.
• Bury underground lines below
the frost line and avoid pockets
where condensation can gather
and freeze. Apply pressure
before underground lines are
covered to make sure all pipe
joints are free of leaks.
• A flexible coupling is
recommended to be installed
between the air discharge outlet
and main air distribution line to
allow for vibration.
• A separate regulator is
recommended to control the air
pressure. Air pressure from the
tank is usually to high for
individual air driven tools.

13- ENG D24450
Tank Pressure Gauge: The tank
pressure gauge indicates the reserve
air pressure in the tank.
Globe Valve: Opens and closes air
discharge valve. Turn knob counter-
clockwise to open and clockwise to
close.
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.
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
Tank
Pressure Gauge
Globe Valve
Pressure
Switch
On/Auto/Off
Switch
Drain
Valve

14- ENG
D24450
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.
Pressure Release Valve: The
pressure release valve, located on the
side of the pressure switch, is
designed to automatically release
compressed air from the compressor
head and the outlet tube when the air
compressor reaches "cut-out"
pressure or is shut off. The pressure
release valve allows the motor to
restart freely. When the motor stops
running, air will be heard escaping
from this valve for a few seconds. No
air should be heard leaking when the
motor is running, or continuous
leaking after unit reaches "cut-out"
pressure.
Air Intake Filter (not shown) This
filter is designed to clean air coming
into the pump. This filter must always
be clean and ventilation openings
free from obstructions. See
"Maintenance".
Pressure
Release
Valve
Check Valve
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
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.
2.
Recheck all wiring. Make sure
wires are secure at all terminals
connections. Make sure all
contacts move freely and are not
obstructed.
3. Open the globe valve fully 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 globe
valve is open and there is
minimal air pressure build-up in
tank.
6. Check all air line fittings and
connections/piping for air leaks
by applying a soap solution.
Correct if necessary. NOTE:
Minor leaks can cause the air
compressor to overwork,
resulting in premature breakdown
or inadequate performance.

15- ENG D24450
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. When the tank pressure reaches
"cut-out" pressure open the
globe valve.
IMPORTANT: When using regulator
and other accessories refer to the
manufacture instructions.
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 compressor near the spray
area.
Before Each Start-Up
1. Place On/Auto/Off lever to
"OFF".
2. Close the globe valve.
3. Attach hose and accessories.
NOTE: A regulator MUST be
installed when using accessories
rated at less than 175 PSI
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.
7. Check for excessive vibration.
Readjust or shim air compressor
feet, if necessary.
8. After 15 minutes, close the globe
valve. The air receiver will fill to
"cut-out" pressure and the motor
will stop.

16- ENG
D24450
MAINTENANCE
Customer Responsibilities
Daily or
after
each
use
Before
each
use
●
●
Every
40
hours
Frequently Yearly
●1
1- more frequent in dusty or humid conditions
Check Safety Valve
Drain Tank
Air Filter
NOTE: See "Operation" section for
the location of controls.
To ensure efficient operation and
longer life of the air compressor
outfit, a routine maintenance
schedule should be prepared and
followed. The following routine
maintenance schedule is geared to
an outfit in a normal working
environment operating on a daily
basis. If necessary, the schedule
should be modified to suit the
conditions under which your
compressor is used. The
modifications will depend upon the
hours of operation and the working
environment. Compressor outfits in
an extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
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.
Air compressor pump intake
and exhaust valves
●
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.
●
Inspect air lines and fittings
for leaks

17- ENG D24450
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.
Air Filter - Inspection and
Replacement
Hot surfaces. Risk
of burn.
Compressor heads are exposed
when filter cover is removed.
Allow compressor to cool prior to
servicing.
A dirty air filter will not allow the
compressor to operate at full
capacity. Keep the air filter clean at
all times.
1. Remove the air filter cover.
2. Remove the air filter and make
sure it is clean.
IMPORTANT: Do not operate the
compressor with the air filter
removed.
3. If dirty, rinse air filter with warm
water and squeeze dry.
4. Replace air filter and air filter
cover.
Air Filter
Air Filter
Cover
Motor
The motor has an automatic reset
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. The
compressor will automatically restart
after the motor cools.
If the overload protector shuts the
motor off frequently, check for a
possible voltage problem. Low
voltage can also be suspected when:
1. The motor does not get up to full
power or speed.
2. Fuses blow out when starting
the motor; lights dim and remain
dim when motor is started and is
running.
Air Compressor Pump Intake
and Exhaust Valves
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
NOTE: If the air filter is extremely
dirty it will need to be replaced. Refer
to the "Repair Parts" for the correct
part number.
Inspect Air Lines and Fittings
for Leaks
1. Turn the air compressor on to
inspect for air leaks.
2. Apply a soap solution to all air
line fittings and
connections/piping.
3. Correct any leaks found.
IMPORTANT: Even minor leaks can
cause the air compressor to
overwork, resulting in premature
breakdown or inadequate
performance.

18- ENG
D24450
7. Unscrew the check valve (turn
counterclockwise) using a 7/8"
open end wrench. Note the
orientation for reassembly.
8. Using a screwdriver, carefully
push the valve disc up and
down. NOTE: The valve disc
should move freely up and down
on a spring which holds the valve
disc in the closed position, if not
the check valve needs to be
cleaned or replaced.
9. Clean or replace the check valve.
A solvent, such as paint or
varnish remover can be used to
clean the check valve.
10. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
11. Replace the pressure release
tube. Tighten nut.
12. Replace the outlet tube and
tighten nut.
13. Replace the shroud and air filter.
14. 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.
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. Using a phillips screwdriver
remove the air filter cover.
4. Remove the rear shrouds using
T-20 torx wrench.
5. Using an adjustable wrench
loosen outlet tube nut at air tank.
Carefully move outlet tube away
from check valve.
6. Using an adjustable wrench
loosen pressure relief tube nut at
air tank. Carefully move pressure
relief tube away from check
valve.
Outlet Tube
Check
Valve
Nut
Nut
Pressure
Relief
Tube
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver

19- ENG D24450
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. Close the globe valve.
4. Remove the air tool or accessory.
5. Open the globe valve and allow
the air to slowly bleed from the
air tank until tank pressure is
approximately 20 psi.
6. 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.
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 air hose from
damage (such as being stepped
on or run over).

20- ENG
D24450
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 at
pressure switch
release valve.
Defective pressure switch
release valve.
Contact a Trained Service
Technician.
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.
Air leaks at or
inside check
valve.
Check valve seat damaged. A defective check valve
results in a constant air leak
at the pressure release valve
when there is pressure in the
tank and the compressor is
shut off. Replace check
valve. Refer the "To Replace
or Clean Check Valve" in the
"Service and Adjustment"
section.
Contact a Trained Service
Technician.