Sears 919.184191 User manual

Owner’s Manual
Oil Lubricated
Single Stage
Vertical Stationary
AIR COMPRESSOR
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Repair Parts
• Español
Model No.
919.184191
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
A13576 Rev. 0 08/1/05
Sears, Roebuck and Co., Hoffman Estates, IL 60170 U.S.A.
Visit our Craftsman website: www.sears.com/craftsman

2- ENG
A13576
TABLE OF CONTENTS
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SPECIFICATION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SAFETY GUIDELINES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DUTY CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-16
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-19
SERVICE AND ADJUSTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27
REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-31
ESPAÑOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-57
NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
REPAIR PROTECTION AGREEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . 59
HOW TO ORDER REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . back cover
AIR COMPRESOR WARRANTY
FULL ONE YEAR WARRANTY AIR COMPRESSOR
If this CRAFTSMAN Air Compressor fails due to a defect in material or
workmanship within one year from the date of purchase, Sears will at
its option repair or replace it free of charge. Contact your nearest Sears
Service Center (1-800-4-MY-HOME®) to arrange for repair, or return the Air
Compressor to the place of purchase for replacement.
If this Air Compressor is used for commercial or rental purposes, this warranty
applies for only 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, Roebuck and Co., Dept. 817WA, Hoffman Estates, IL 60179

3- ENG A13576
Model No. 919.184191
Running HP 3.2
Bore 2.875"
Stroke 2.0"
Voltage-Single Phase 240
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 60 gallons
Approximate Cut-in Pressure 120
Approximate Cut-out Pressure 150
SCFM @ 40 psig 12.4
SCFM @ 90 psig 10.2
Refer to Glossary for abbreviations.
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.
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 personal injury.
SAFETY GUIDELINES - DEFINITIONS
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.
SPECIFICATION TABLE

4- ENG
A13576
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 operation instructions before
using this equipment.
HAZARD
WARNING: Risk of explosion or fire
How To Prevent It
What Could Happen
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.
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.

5- ENG A13576
WARNING: 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 Could Happen
WARNING: Risk from Flying Objects
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
Drain tank daily or after each use. If tank
develops a leak, replace it immediately
with a new tank or replace the entire
compressor.
Failure to properly drain condensed
water from tank, causing rust and
thinning of the steel tank.
Modifications or attempted repairs to
the tank.
Unauthorized modifications to the
unloader valve, safety valve, or any
other components which control tank
pressure.
Never drill into, weld, or make any
modifications to the tank or its
attachments.
Excessive vibration can weaken the
air tank and cause rupture or
explosion
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.
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.
How To Prevent It
What Could Happen

6- ENG
A13576
WARNING: Risk to Breathing
WARNING: Risk of Electrical Shock
HAZARD
HAZARD
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.
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.
Sprayed materials such as paint, paint
solvents, paint remover, insecticides,
weed killers, may contain harmful
vapors and poisons.
Work in an area with good cross
ventilation. Read and follow the safety
instructions provided on the label or
safety data sheets for the materials
you are spraying. Use a NIOSH/MSHA
approved respirator designed for use
with your specific application.
How To Prevent It
What Could Happen
How To Prevent It
What Could Happen
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.
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.

7- ENG A13576
WARNING: 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.
WARNING: Risk from Moving Parts
Never operate the compressor with
guards or covers which are damaged or
removed.
Moving parts such as the pulley,
flywheel, and belt can cause serious
injury if they come into contact with you
or your clothing.
WARNING: 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
Any repairs required on this product
should be performed by authorized
service center personnel.
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 Could Happen
How To Prevent It
What Could Happen
How To Prevent ItWhat Could Happen

8- ENG
A13576
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.
WARNING: Risk of Unsafe Operation
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
HAZARD
WARNING: Risk of Serious Injury or 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
SAVE THESE INSTRUCTIONS
How To Prevent It
What Could Happen
How To Prevent It
What Could Happen

9- ENG A13576
ACCESSORIES
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.
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 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.
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.
Accessories
• In Line Filter
• Tire Air Chuck
• Quick Connector Sets (various
sizes)
• Air Pressure Regulators
• Oil Fog Lubricators
• Air Hose: 1/4", 5/16”, or 3/8" OR
1/2" inside diameter in various
lengths
DUTY CYCLE
This air compressor pump is
capable of running continuously.
However, to prolong the life of your
air compressor, it is recommended
that a 50%-75% average duty
cycle be maintained; that is, the air
compressor pump should not run
more than 30-45 minutes in any given
hour.

10- ENG
A13576
NOTE: Use an air compressor oil
such as Sears item number 9-16426
or SAE-20 (API CG/CD) heavy duty
motor oil. Under extreme winter
conditions use SAE-10 weight oil.
To Add Oil
Drain tank to
release air pressure
before removing the oil fill cap or
oil drain plug.
1. Place unit on a level surface.
2. Remove oil fill plug (A) and
slowly add compressor oil until
it is even with the top of the oil
fill hole. NOTE: Do not allow oil
to be lower than 3/8" (6 threads)
from the top at any time. When
filling the crankcase, the oil flows
very slowly into the pump. If the
oil is added too quickly, it will
overflow and appear to be full.
NOTE: Crankcase oil capacity is
approximately 16 fluid ounces.
3. Replace oil fill plug.
ASSEMBLY
Tools Required for Assembly
1 - 9/16” socket or open end wrench
1 - electric drill
Unpacking
1. Remove all packaging.
It may be
necessary to brace
or support one side of the air
compressor 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.
Adding Oil To Pump
Compressors are
shipped without
oil. A small amount of oil may be
present in the pump upon receipt
of the air compressor. This is
due to plant testing and does not
mean the pump contains oil. Do
not attempt to operate this air
compressor without first adding oil
to the crankcase. Serious damage
can result from even limited
operation unless filled with oil and
broken in correctly. Make sure
to closely follow initial start-up
procedures.
Use air compressor
oil only. Multi-
Viscosity motor oils, like 10W
30, should not be used in an air
compressor. They leave carbon
deposits on critical components,
thus reducing performance and
compressor life.
A

11- ENG A13576
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 know
the following before wiring:
1. The amperage rating of
the electrical box should
be adequate. Refer to the
Specification Table, in this
manual, for this information.
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 (not
supplied)
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 a
solid, level surface.
2. Mark the surface using the holes
in the air compressor feet as a
template.
Air Compressor Location
• Locate the air compressor in a
clean, dry, and well ventilated
area.
• Locate 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.
HOW TO SET UP YOUR
UNIT
INSTALLATION
3. Drill holes in the surface for
the concrete anchors. Install
concrete anchors.
4. Line up holes in surface with
holes in air compressor 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.
6. Place the (4) 3/8" lag screws
through the air compressor feet,
washers, shims, and into the
anchors.
7. Torque 3/8" lag screws to 7-10
ft.-lbs.
3/8" Lag
Screw
(not
supplied)
5/8" Washer
(supplied)
Shim Under
Washer
(not supplied) Concrete Anchor
(not supplied)
Surface Line

12- ENG
A13576
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 supply voltage must be
the same as the motor nameplate
voltage plus or minus 10%. Refer
to local codes for correct wire size
and maximum wire run; undersize
wire causes high amp draw and
overheating of the motor.
Risk of Electrical
Shock. Electrical
wiring must be located away from
hot surfaces such as manifold
assembly, compressor outlet tubes,
heads, or cylinders.
GROUNDING INSTRUCTIONS
This product should be connected to
a metallic, permanent wiring system,
or an equipment-grounding terminal
or lead on the product.
Grounding location is clearly
indicated on compressor.
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.
Air Distribution System
Risk of Bursting.
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.
• 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. Fill
lines with air pressure before
covering to make sure pipe
joints are free from leaks.
Voltage and Circuit Protection
Refer to the specification chart for the
voltage and minimum branch circuit
requirements.
Risk of Unsafe
Operation. Certain
air compressors can be operated
on a 15 amp circuit if the following
conditions are met.
1. Voltage supply to circuit must
comply with the National
Electrical Code.
2. Circuit is not used to supply any
other electrical needs.
3. Extension cords comply with
specifications.

13- ENG A13576
• Install a flexible coupling
between the air discharge
outlet and main air
distribution line to allow for
vibration.
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
• A separate regulator is
recommended to control the
air pressure. Air pressure from
the air tank is usually too high
for individual air driven tools.

14- ENG
A13576
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.
Tank Pressure Gauge: The air tank
pressure gauge indicates the reserve
air pressure in the air 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.
On/Auto/Off Switch: Turn this switch
ON/AUTO 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. The pressure switch 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).
Globe Valve
Safety Valve
On/Auto/Off
Switch
Pressure
Switch
Drain
Valve
Tank
Pressure
Gauge

15- ENG A13576
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 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".
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
“OFF”.
Pressure
Release
Valve
Check Valve
Before First Start-up
Risk of Unsafe
Operation. 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 the first time and when
the check valve or a complete
compressor pump has been
replaced.
Break-in Instructions
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 20
minutes. Make sure the globe
valve is open and check tank
pressure gauge for minimal air
pressure build-up in air tank.
6. Check all air line fittings and
connections/piping for air leaks
by applying a soap solution
to them. Bubbles will indicate
a leak. 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 20 minutes, close the globe
valve.The air tank will fill to “cut-
out” pressure and the motor will
stop.

16- ENG
A13576
How to Start
1. Turn the On/Auto/Off lever
to “AUTO” and allow air tank
pressure to build. Motor will
stop when air tank pressure
reaches “cut-out” pressure.
2. When the air tank pressure
reaches “cut-out” pressure open
the globe valve.
IMPORTANT: When using regulator
and other accessories refer to the
manufacturer’s instructions.
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 120 PSI.
Risk of Bursting.
Too much air
pressure causes a hazardous risk
of the air tank bursting. Check the
manufacturer’s maximum pressure
rating for air tools and accessories.
The regulator outlet pressure
must never exceed the maximum
pressure rating.

17- ENG A13576
MAINTENANCE
Customer Responsibilities
Daily
or after
each
use
Before
each
use
●
●
●
Every
8
hours
Every
40
hours
Every
100
hours
Yearly
Every
160
hours
●
●
● (1)
●
●
●
1- more frequent in dusty or humid conditions
Check Safety Valve
Drain Air Tank
Check Oil
Change Oil
Listen for Unusual
Noise and/or
Vibration
Check Drive Belt
Condition
Check Motor Pulley/
Flywheel alignment
Check Air
compressor pump
intake and exhaust
valves
Check Air Filter
NOTE: See “Operation” section for
the location of controls.
To ensure efficient operation and
longer life of the air compressor air
compressor, a routine maintenance
schedule should be prepared and
followed. The following routine
Risk of Unsafe
Operation. Unit
cycles automatically when power
is on. When servicing, you may
be exposed to voltage sources,
compressed air, or moving parts.
Before servicing unit unplug or
disconnect electrical supply to
the air compressor, bleed tank
of pressure, and allow the air
compressor to cool.
maintenance schedule is geared
to an air compressor 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. Air compressors in
an extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
Inspect air lines and
fittings for leaks ●

18- ENG
A13576
To Check Safety Valve
Risk of Bursting.
If the safety valve
does not work properly, over-
pressurization may occur, causing
air tank rupture or explosion and
possible serious injury.
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 Air tank
1. Set the On/Auto/Off lever to
"OFF" and disconnect electrical
supply.
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. Close the globe valve.
6. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of air tank.
Risk of Bursting.
Water will condense
in the air tank. If not drained, water
will corrode and weaken the air
tank causing a risk of air tank
rupture and possible serious injury.
7. 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, then
reinstalled.
Oil
Risk of Bursting.
Drain air tank to
release air pressure before removing
the oil fill cap or oil drain plug.
NOTE: Use air compressor oil such
as SAE-20 (API CG/CD) heavy duty
motor oil. Under extreme winter
conditions use SAE-10 weight oil.
Oil capacity is approximately 16 fluid
ounces.
Checking
1. Remove the oil fill plug (A). The
oil level should be even with the
top of the fill hole and no lower
than 6 threads from the top of fill
hole.
2. If needed, slowly add oil until it
reaches the top of fill hole.
Changing
1. Remove the oil fill plug (A).
2. Remove the oil drain plug (B) and
drain oil into a suitable container.
3. Replace the oil drain plug (B) and
tighten securely.
4. Slowly add compressor oil until
it is even with the top of the oil
fill hole. NOTE: When filling the
crankcase, the oil flows very
slowly into the pump. If the oil is
added too quickly, it will overflow
and appear to be full.
5. Replace oil fill plug (A) and
tighten securely.
A
B

19- ENG A13576
5. If the difference is greater or less
than 1/16" loosen the set screw
holding the motor drive pulley to
the shaft and adjust the pulley’s
position on the shaft until the A1
and A2 measurements are within
1/16" of each other.
6. Torque the motor drive pulley set
screw to 70-80 in.-lbs.
7. Visually inspect the motor
drive pulley to verify that it is
perpendicular to the drive motor
shaft. Points B1 and B2 in figure
above should appear to be
equal. If they are not, loosen
the setscrew of the motor drive
pulley and equalize B1 and B2,
using care not to disturb the belt
alignment performed in step 4.
8. Retighten the motor drive pulley
set screw to 70-80 in.-lbs.
9. Reinstall belt guard.
Air Filter Inspection and
Replacement
Risk of Burns.
Compressor head
and cylinder sleeve are very hot.
Do not touch. 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
from filter
cover.
IMPORTANT:
Do not operate
the compressor
with the air filter
removed.
3. Place new air filter into filter
cover. Refer to the “Repair Parts”
for the correct part number.
4. Replace air filter cover and lock
into place.
Motor Pulley/Flywheel Alignment
NOTE: Once the motor pulley has
been moved from its factory set
location, the grooves of the flywheel
and pulley must be aligned to within
1/16" to prevent excessive belt wear.
The air compressor flywheel and motor
pulley must be in-line (in the same
plane) within 1/16" to assure belt
retention within flywheel belt grooves.
To check alignment, perform the
following steps:
1. Disconnect electrical supply to the
air compressor
2. Remove belt guard.
3. Place a straightedge against the
outside of the flywheel and the
motor drive pulley.
4. Measure the distance between
the edge of the belt and the
straightedge at points A1 and A2
in figure. The difference between
measurements should be no more
than 1/16".
Air Compressor Pump Intake
and Exhaust Valves
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
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. Bubbles will indicate a
leak.
3. Correct any leaks found.
IMPORTANT: Even minor leaks
can cause the air compressor to
overwork, resulting in premature
breakdown or inadequate
performance.
Air Filter
Cover

20- ENG
A13576
4. Using an adjustable wrench,
loosen pressure relief tube nut
at air tank and pressure switch.
Carefully move pressure relief
tube away from check valve.
5. Unscrew the check valve (turn
counterclockwise) using a 7/8
" open end wrench. Note the
orientation for reassembly.
6. 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 it in the
closed position; if valve disc is
not moving freely the check valve
needs to be cleaned or replaced.
7. Clean or replace the check
valve. A solvent, such as paint or
varnish remover can be used to
clean the check valve.
8. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
9. Replace the pressure release
tube. Tighten nuts.
10. Replace the outlet tube and
tighten nuts.
11. Perform the Break-in Procedure.
See “Break-in Procedure” in the
Operation section.
SERVICE AND ADJUSTMENTS
To Replace or Clean Check
Valve
1. Release all air pressure from air
tank. See “To Drain Air tank” in
the Maintenance section.
2. Disconnect electrical supply to
the air compressor
3. Using an adjustable wrench,
loosen outlet tube nut at air tank
and pump. Carefully move outlet
tube away from check valve.
Risk of Unsafe
Operation. Unit
cycles automatically when power
is on. When servicing, you may
be exposed to voltage sources,
compressed air, or moving parts.
Before servicing unit unplug or
disconnect electrical supply to
the air compressor, bleed tank
of pressure, and allow the air
compressor to cool.
ALL SERVICE AND REPAIR
OPERATIONS NOT DESCRIBED
IN THIS MANUAL MUST BE
PERFORMED BY A TRAINED
SERVICE TECHNICIAN.
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
Outlet Tube
Nuts
Nut
Pressure
Relief Tube
Check Valve
Nut