Craftsman 919.165610 Operators User manual

D21879 Rev. 3 9/17/04
Operators Manual
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
Visit our Craftsman website: www.sears.com/craftsman
Permanently Lubricated
2 Stage
Twin Valve
Stationary
AIR COMPRESSOR
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Español
Model No.
919.165610

2 - ENGD21879
TABLE OF CONTENTS
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
SAFETY GUIDELINES . . . . . . . . . . . . . . . . . . . .3-6
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . .7
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Contents of Carton . . . . . . . . . . . . . . . . . . . . . .7
Tools Required for Assembly . . . . . . . . . . . . . .7
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
Location of Air Compressor . . . . . . . . . . . . . . .8
Anchoring the Air Compressor . . . . . . . . . . . . .8
Wiring Instructions . . . . . . . . . . . . . . . . . . . . . .8
Voltage and Circuit Protection . . . . . . . . . . . . .8
Air Distribution System . . . . . . . . . . . . . . . . . . .9
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
Know Your Air Compressor . . . . . . . . . . . . . .10
Description of Operation . . . . . . . . . . . . . . . . .10
How to Use Your Unit . . . . . . . . . . . . . . . . . . .11
How to Stop . . . . . . . . . . . . . . . . . . . . . . . . . .11
Before Starting . . . . . . . . . . . . . . . . . . . . . . . .11
Before Each Start-up . . . . . . . . . . . . . . . . . . .11
How to Start . . . . . . . . . . . . . . . . . . . . . . . . . .11
FULL ONE YEAR WARRANTY
AIR COMPRESSOR
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 REPAIR CENTER THROUGHOUT THE UNITED STATES
AND SEARS WILL REPAIR IT, FREE OF CHARGE. If purchased from Orchard Supply Hardware, return to
the nearest Orchard Store and Orchard will repair it, free of charge.
If this air compressor is used for commercial or rental purposes, the warranty will apply for ninety days
from the date of purchase.
This warranty gives you specific legal rights and you may have other rights which vary from state to state.
Sears, Robebuck and Co., Dept. 817WA, Hoffman Estates, Il 60179
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . .12-13
Customer Responsiblilities . . . . . . . . . . . . . . .12
To Check Saety Valve . . . . . . . . . . . . . . . . . . .12
To Drain Tank . . . . . . . . . . . . . . . . . . . . . . . . .12
Air Filter - Inspection and Replacement . . . . .12
Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Inspect Air Lines and Fittings for leaks . . . . .13
Air Compressor Pump Intake and
Exhaust Valves . . . . . . . . . . . . . . . . . . . . . . . .13
SERVICE AND ADJUSTMENTS . . . . . . . . . . . . .14
To Repalce or Clean Check Valve . . . . . . . . . .14
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
TROUBLESHOOTING GUIDE . . . . . . . . . . . .16-18
ESPAÑOL . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-37
HOW TO ORDER REPAIR PARTS . . . . .back cover

3 - ENG D21879
SAFETY GUIDELINES - DEFINITIONS
Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous sit-
uation 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 sym-
bol indicates a potentially haz-
ardous situation which, if not avoided, may result in
property damage.
IMPORTANT SAFETY INSTRUCTIONS
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 INSTRUC-
TIONS BEFORE USING THIS EQUIPMENT.
RISK OF EXPLOSION OR FIRE
ALWAYS OPERATE THE COMPRESSOR IN A WELL VEN-
TILATED AREA FREE OF COMBUSTIBLE MATERIALS,
GASOLINE OR SOLVENT VAPORS.
IF SPRAYING FLAMMABLE MATERIALS, LOCATE COM-
PRESSOR AT LEAST 20 FEET AWAY FROM SPRAY
AREA. AN ADDITIONAL LENGTH OF HOSE MAY BE
REQUIRED.
STORE FLAMMABLE MATERIALS IN A SECURE LOCA-
TION 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 VENTI-
LATED AREA. DO NOT OPERATE UNIT INDOORS OR IN
ANY CONFINED AREA.
ALWAYS REMAIN IN ATTENDANCE WITH THE PROD-
UCT WHEN IT IS OPERATING.
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 VENTILA-
TION OPENINGS WILL CAUSE SERIOUS OVERHEATING
AND COULD CAUSE FIRE.
UNATTENDED OPERATION OF THIS PRODUCT COULD
RESULT IN PERSONAL INJURY OR PROPERTY DAM-
AGE.
WHAT CAN HAPPEN HOW TO PREVENT IT
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.

4 - ENGD21879
HAZARD
RISK OF BURSTING
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 MODIFICA-
TIONS TO THE TANK OR ITS ATTACHMENTS.
THE TANK IS DESIGNED TO WITHSTAND SPECIFIC OPER-
ATING 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 PRES-
SURE 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.
WHAT CAN HAPPEN HOW TO PREVENT IT
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.
RISK FROM FLYING OBJECTS
WHAT CAN HAPPEN HOW TO PREVENT IT
THE COMPRESSED AIR STREAM CAN CAUSE SOFT TIS-
SUE 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 GLASS-
ES WITH SIDE SHIELDS WHEN USING THE COMPRES-
SOR.
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.

5 - ENG D21879
HAZARD
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 FIL-
TERS AND IN-LINE SAFETY EQUIPMENT MUST BE
PROPERLY INSTALLED. IN-LINE FILTERS AND SAFETY
EQUIPMENT USED IN CONJUNCTION WITH THE COM-
PRESSOR 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 PRO-
VIDED 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 COM-
PRESSOR 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 SOL-
VENTS, PAINT REMOVER, INSECTICIDES, WEED
KILLERS, CONTAIN HARMFUL VAPORS AND POISONS.
WHAT CAN HAPPEN HOW TO PREVENT IT
RISK OF ELECTRICAL SHOCK
NEVER OPERATE THE COMPRESSOR OUTDOORS WHEN
IT IS RAINING OR IN WET CONDITIONS.
NEVER OPERATE COMPRESSOR WITH PROTECTIV-
COVERS REMOVED OR DAMAGED.
ANY ELECTRICAL WIRING OR REPAIRS REQUIRED ON
THIS PRODUCT SHOULD BE PERFORMED BY AUTHO-
RIZED 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 VOLT-
AGE AND ADEQUATE FUSE PROTECTION.
YOUR AIR COMPRESSOR IS POWERED BY ELECTRICI-
TY. 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 ELEC-
TROCUTION.
ELECTRICAL GROUNDING: FAILURE TO PROVIDE ADE-
QUATE GROUNDING TO THIS PRODUCT COULD
RESULT IN SERIOUS INJURY OR DEATH FROM ELEC-
TROCUTION. SEE GROUNDING INSTRUCTIONS.
WHAT CAN HAPPEN HOW TO PREVENT IT

6 - ENGD21879
HAZARD
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 DAM-
AGED OR MISSING PARTS OR ATTEMPTING TO REPAIR
COMPRESSOR WITH PROTECTIVE SHROUDS REMOVED
CAN EXPOSE YOU TO MOVING PARTS AND CAN
RESULT IN SERIOUS INJURY.
WHAT CAN HAPPEN HOW TO PREVENT IT
RISK OF FALLING
WHAT CAN HAPPEN HOW TO PREVENT IT
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 MOVE-
MENT OF THE UNIT. NEVER OPERATE COMPRESSOR
ON A ROOF OR OTHER ELEVATED POSITION. USE
ADDITIONAL AIR HOSE TO REACH HIGH LOCATIONS.
RISK OF PROPERTY DAMAGE WHEN TRANSPORTING
COMPRESSOR
WHAT CAN HAPPEN HOW TO PREVENT IT
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)
RISK OF BURNS
WHAT CAN HAPPEN HOW TO PREVENT IT
TOUCHING EXPOSED METAL SUCH AS THE COMPRES-
SOR HEAD OR OUTLET TUBES, CAN RESULT IN
SERIOUS BURNS.
NEVER TOUCH ANY EXPOSED METAL PARTS ON
COMPRESSOR DURING OR IMMEDIATELY AFTER OPER-
ATION. 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.
For units requiring oil in pump or gasoline engines

7 - ENG D21879
ASSEMBLY
Tools Required for Assembly
1 - 9/16” socket or open end wrench
Electric drill
GLOSSARY
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 meas-
ure of pressure.
ASME: American Society of Mechanical Engineers;
made, tested, inspected and registered to meet the
standards of the ASME.
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 accesso-
ry. 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 pres-
sure before the motor automatically shuts off - pro-
tecting 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 elec-
trical panel to outlet.
ACCESSORIES
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
Unpacking
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.
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.
Contents of Carton
1 - Air Compressor
1 - Parts bag containing:
1 - Operator’s Manual
1 - Parts Manual
4 - 5/8” Washers

8 - ENG
Wiring Instructions
RISK OF ELECTRICAL
SHOCK. Improper elec-
trical 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 is ade-
quate. Refer to the Specification Chart, in the
parts manual, for this information.
2. The supply line has the same electrical character-
istics (voltage-240, cycle-60, phase-1) 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 volt-
age 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 cylin-
ders.
Voltage and Circuit Protection
Refer to the Parts Manual for the voltage and mini-
mum 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 marked “D”.
If any of the above conditions cannot be met, or if
operation of the compressor repeatedly causes inter-
ruption of the power, it may be necessary to operate it
from a 20 amp circuit.
INSTALLATION
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 inter-
fere 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.
HOW TO SET UP YOUR UNIT
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 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 sur-
face.
2. Mark the surface using the holes in the air com-
pressor feet as a template.
3. Drill holes in the surface for the concrete anchors.
Install concrete anchors.
4. Line-up holes in surface with holes in air com-
pressor feet.
5. 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.
3/8” Lag
Screw
(not supplied)
5/8” Washer
(supplied)
Shim Under
Washer
(not supplied)
Concrete Anchor
(not supplied)
Surface Line
6. Place the (4) 3/8” lag screws through the air com-
pressor feet, washers, shims, and into the
anchors.
7. Torque 3/8” lag screws to 15-20 ft.-lbs.
D21879

9 - ENG D21879
Air Distribution System
Plastic or PVC pipe is not
designed for use with com-
pressed 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 set-
ting up the air compressor’s air distribution system.
●Use pipe that is the same size as the air tank out-
let. Piping that is too small will restrict the flow of
air.
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
●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 usu-
ally to high for individual air driven tools.

10 - ENGD21879
OPERATION
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 high-
er than the pressure switch “cut-out” setting).
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 condensa-
tion at the end of each
use.
Cooling System (not shown): This compressor con-
tains an advanced design cooling system. At the heart
of this cooling system is an engineered fan. It is per-
fectly 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.
Pressure Release Valve:
The pressure release valve,
located on the side of the
pressure switch, is designed
to automatically release com-
pressed air from the com-
pressor head and the outlet
tube when the air compres-
sor 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” pres-
sure.
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".
Know Your Air Compressor
READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT. Compare the illustra-
tions with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual
for future reference.
Drain
Valve
Safety Valve
On/Auto/Off
Switch
Check Valve
Tank
Pressure Gauge
Pressure
Release
Valve
Globe Valve
Pressure
Switch

11 - ENG D21879
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” pres-
sure open the globe valve.
IMPORTANT: When using regulator and other acces-
sories 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 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" posi-
tion. 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.
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to “OFF”.
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.
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.
7. Check for excessive vibration. Readjust or shim
air compressor feet, if necessary.
8. After 15 minutes, move the On/Auto/Off lever to
"OFF" position and close the globe valve.
7. Move the On/Auto/Off lever to "ON/AUTO" posi-
tion. The air receiver will fill to “cut-out” pressure
and the motor will stop.
Safety Valve
On/Auto/Off
Switch
Tank
Pressure Gauge
Globe Valve
Pressure
Switch

12 - ENGD21879
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 oper-
ate 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.
MAINTENANCE
Customer Responsibilities
Daily or
after
each use
Before
each use
Check Safety Valve
Drain Tank
Air Filter (inspect and replace)
Inspect air lines and fittings for leaks
Air compressor pump intake and exhaust valves
To Check Safety Valve
If the safety valve does
not work properly, over-
pressurization may occur, causing air tank
rupture or an explosion. Before starting com-
pressor, 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. Close the globe valve.
3. Remove the air tool or accessory.
4. Open the globe valve and allow the air to slowly
bleed from the air tank until tank pressure is
approximately 20 psi.
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.
Air Filter Cover
●
●
Frequently
●
●
NOTE: For the location of controls see “Discription of Operation” in the “Operation” section of this manual.
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 work-
ing environment. Compressor outfits in an extremely dirty and/or hostile environment will require a greater fre-
quency 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.
Yearly
●
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 pres-
sure. The valve can then be removed, cleaned, then
reinstalled.
Air Filter

13 - ENG D21879
3. If dirty, rinse air filter with warm water and
squeeze dry.
4. Replace air filter and air filter cover.
NOTE: If the air filter is extremely dirty it will need to
be replaced. Refer to the “Parts Manual” for the cor-
rect part number.
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 frequent-
ly, 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.
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.
Air Compressor Pump Intake and Exhaust
Valves
Once a year have a Trained Service Technician check
the air compressor pump intake and exhaust valves.

14 - ENGD21879
6. Using an adjustable wrench loosen pressure relief
tube nut at air tank and pressure switch. Carefully
move pressure relief tube away from check valve.
7. Unscrew the check valve (turn counterclockwise)
using a 7/8” open end wrench. Note the orienta-
tion 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 nuts.
12. Replace the outlet tube and tighten nuts.
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 per-
forming 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 shroud using T-20 torx wrench.
5. Using an adjustable wrench loosen outlet tube nut
at air tank and pump. Carefully move outlet tube
away from check valve.
Before servicing:
●Unplug or disconnect electrical supply to the
air compressor.
●Bleed tank of pressure.
●Allow the air compressor to cool.
Outlet Tube
Check
Valve
Nut
Nut
Pressure
Relief Tube
In closed position
disc is visible.
In open position
nothing is visible.
Screwdriver

15 - ENG D21879
STORAGE
Before you store the air compressor, make sure you
do the following:
1. Review the "Maintenance" section on the preced-
ing 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
valve.
NOTE: If drain valve is plugged, release all air pres-
sure. The valve can then be removed, cleaned, then
reinstalled.
8. Protect the air hose from damage (such as being
stepped on or run over).

16 - ENGD21879
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. Contact a Trained Service
Technician.
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 pres-
sure in the tank and the compres-
sor is shut off. Replace check
valve. Refer the “To Replace or
Clean Check Valve” in the
“Service and Adjustment” section.
Possible defect in safety valve. Operate safety valve manually by
pulling on ring. If valve still leaks,
it should be replaced.
Defective check valve. Remove and clean, or replace.
Knocking Noise.

17 - ENG D21879
Motor will not run.
Fuse blown, circuit breaker
tripped.
1. Check fuse box for blown fuse
and replace as necessary.
Reset circuit breaker. Do not
use a fuse or circuit breaker
with higher rating than that
specified for your particular
branch circuit.
2. Check for proper fuse. You
should use a time delay fuse.
3. Check for low voltage condi-
tions and/or proper extension
cord.
4. Disconnect the other electrical
appliances from circuit or
operate the compressor on its
own branch circuit.
PROBLEM CAUSE CORRECTION
Motor overload protection switch
has tripped
Let motor cool off and overload
switch will automatically reset.
Tank pressure exceeds pressure
switch “cut-in” pressure.
Motor will start automatically
when tank pressure drops below
“cut-in” pressure of pressure
switch.
Extension cord is wrong length or
gauge.
Check for proper gauge wire and
cord length.
Loose electrical connections. Check wiring connection inside
pressure switch and terminal box
area.
Have checked by a Trained
Service Technician.
Check valve stuck open. Remove and clean, or replace.
Possible defective motor or start-
ing capacitor.
Have checked by a Trained
Service Technician. Do not oper-
ate the compressor in the paint
spray area. See flammable vapor
warning.
Paint spray on internal motor
parts.
Bleed the line by pushing the lever
on the pressure switch to the “off”
position; if the valve does not
open, replace switch.
Pressure release valve on pres-
sure switch has not unloaded
head pressure.

18 - ENGD21879
PROBLEM CAUSE CORRECTION
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.
Restricted air intake filter
Decrease amount of air usage.
Check the accessory air require-
ment. 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.
Clean or replace air intake filter.
Do not operate the air compressor
with the filter removed. Refer to
the “Air Filter” paragraph in the
“Maintenance “ section

19 - SP D21879
CONTENIDO
GARANTÍA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
NORMAS DE SEGURIDAD . . . . . . . . . . . . . .20-23
GLOSARIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
ACCESORIOS . . . . . . . . . . . . . . . . . . . . . . . . . . .24
ENSAMBLADO . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Contenido de la caja . . . . . . . . . . . . . . . . . . . .24
Cómo extraer el compresor de aire
de la caja . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Desembalaje . . . . . . . . . . . . . . . . . . . . . . . . . .24
INSTALACIÓN . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Ubicación del compresor de aire . . . . . . . . . .25
Instrucciones para conectar a tierra . . . . . . .25
Extensiones eléctricas . . . . . . . . . . . . . . . . . .25
Protección del voltaje y del circuito . . . . . . . .25
Sistema de distribución de aire . . . . . . . . . . .26
PROCEDIMIENTOS OPERATIVOS . . . . . . . .27-28
Conozca su compresor de aire . . . . . . . . . . . .27
Descripción de operaciones . . . . . . . . . . . . . .27
Como usar su unidad . . . . . . . . . . . . . . . . . . .28
Como detenerla . . . . . . . . . . . . . . . . . . . . . . .28
GARANTÍA COMPLETA POR UN AÑO
COMPRESOR DE AIRE
Si este compresor de aire fallara por defectos en materiales o mano de obra dentro del lapso de un año a partir de la
fecha de su compra, DEVUÉLVALO AL CENTRO DE REPARACIONES SEARS MAS CERCANO DENTRO DE LOS
ESTADOS UNIDOS, Y SEARS LO REPARARÁ, LIBRE DE CARGO. Si se hubiese comprado a Orchard Supply
Hardware, devuélvalo al comercio Orchard más cercano y Orchard lo reparará, libre de cargo.
Si este compresor de aire fuese utilizado para propósitos comerciales o de alquiler, la garantía solo tendrá validez
por noventa días a partir de la compra.
Esta garantía le otorga derechos legales específicos, aunque usted podrá tener otros derechos que podrían variar
entre estados.
Sears, Roebuck and Co., Dept. 817WA, Hoffman Estates, II 60179
Antes de poner en marcha . . . . . . . . . . . . . . .28
Procedimiento para el asentamiento . . . . . . .28
Antes de cada puesta en marcha . . . . . . . . . .28
Cómo ponder en marcha . . . . . . . . . . . . . . . .28
MANTENIMIENTO . . . . . . . . . . . . . . . . . . . . .29-30
Cómo verificar la válvula de seguridad . . . . .29
Cómo drenar el tanque . . . . . . . . . . . . . . . . . .29
Filtro de Aire - Inspección y reemplazo . . . . .29
Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Inspección de las cañerías de aire y las
conexiones para detectar fugas . . . . . . . . . . .30
Válvulas de entrada y escape de la
bomda del compessor de aire . . . . . . . . . . . .30
SERVICIOS Y REGULACIONES . . . . . . . . . . . . .31
Para reemplazo o limpiar la válvula
de retención . . . . . . . . . . . . . . . . . . . . . . . . . .31
ALMACENAJE . . . . . . . . . . . . . . . . . . . . . . . . . . .32
GUÍA DE DIAGNÓSTICO DE PROBLEMAS .33-35
COMO SOLICITAR PIEZAS
PARA REPARACIÓN . . . . . . . . . . . . . . .contratapa

20 - SPD21879
DEFINICIONES DE NORMAS DE SEGURIDAD
Indica una situación de inminente riesgo, la cual,
si no es evitada, causará la muerte o lesiones
serias.
Indica una situación potencialmente
riesgosa, que si no es evitada, podría
resultar en la muerte o lesiones serias.
Indica una situación potencialmente
peligrosa, la cual, si no es evitada, podría
resultar en lesiones menores o moderadas.
Usado sin el símbolo de seguridad de
alerta indica una situación potencial-
mente riesgosa la que, si no es evitada, podría causar daños en
la propiedad.
INSTRUCCIONES IMPORTANTES DE SEGURIDAD
GUARDE ESTAS INSTRUCCIONES
La operación o el mantenimiento inadecuados de este producto podrían ocasionar serias lesiones y
daños a la propiedad. Lea y comprenda todas las advertencias e instrucciones de funcionamiento
antes de utilizar este equipo.
RIESGO DE EXPLOSIÓN O INCENDIO
OPERE SIEMPRE EL COMPRESOR EN UN SECTOR BIEN
VENTILADO Y LIBRE DE MATERIALES COMBUSTIBLES,
GASOLINA O EMANACIONES DE SOLVENTE.
EN UN ÁREA DE ROCIADO DE MATERIALES INFLAMABLES,
UBIQUE AL COMPRESOR POR LO MENOS A 6,1M (20 PIES) DE
DISTANCIA DEL ÁREA DE ROCIADO. PODRÍA REQUERIRSE
UNA EXTENSIÓN DE LA MANGUERA.
ALMACENE LOS MATERIALES INFLAMABLES EN UNA
UBICACIÓN SEGURA, ALEJADOS DEL COMPRESOR.
JAMÁS COLOQUE OBJETOS APOYADOS O SOBRE EL COM-
PRESOR. OPERE EL COMPRESOR EN UN SECTOR ABIERTO,
POR LO MENOS A 30 CM (12 PULGADAS) ALEJADO DE
CUALQUIER PARED U OBSTRUCCIÓN QUE RESTRINJA EL
FLUJO DE AIRE FRESCO A LAS ABERTURAS DE VENTILACIÓN.
OPERE EL COMPRESOR EN UN SECTOR LIMPIO, SECO, Y BIEN
VENTILADO. NO OPERE LA UNIDAD EN ESPACIOS CERRADOS
O CUALQUIER ÁREA CONFINADA.
MANTÉNGASE SIEMPRE ALERTA CADA VEZ QUE EL
PRODUCTO ESTE FUNCIONANDO.
PARA LOS CONTACTOS ELÉCTRICOS ES NORMAL LA
EXISTENCIA DE CHISPAS ENTRE EL MOTOR Y EL
INTERRUPTOR A PRESIÓN.
SI LAS CHISPAS ELÉCTRICAS PROVENIENTES DEL COMPRESOR
TOMARAN CONTACTO CON EMANACIONES DE MATERIALES
INFLAMABLES, ELLOS PODRÍAN ARDER ORIGINANDO
INCENDIO O EXPLOSIÓN.
RESTRINGIR CUALQUIERA DE LAS ABERTURAS DE
VENTILACIÓN CAUSARÁ UN SERIO RECALENTAMIENTO
Y PODRÍA PRODUCIR UN INCENDIO.
DEJAR DESATENDIDO ESTE PRODUCTO MIENTRAS EL
MISMO ESTÁ EN FUNCIONAMIENTO PUEDE RESULTAR EN
LESIONES PERSONALES O DAÑOS A LA PROPIEDAD.
¿QUÉ PUEDE OCURRIR? ¿CÓMO PREVENIRLO?
SEGURIDAD Y PREVENCIÓN DE PROBLEMAS DEL EQUIPO: Para ayudar al reconocimiento de esta información, hemos
utilizado los símbolos mostrados abajo. Sírvase leer el manual y prestar atención a dichas secciones.