Craftsman 919.724123 User manual

Owner’s Manual
Permanently Lubricated
Tank Mounted
AIR COMPRESSOR
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Repair Parts
Model No.
919.724123
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Sold by Sears Canada, Inc. Toronto, Ont. M5B 2B8
A14083 Rev. 0 11/19/05

2- ENG
A14083
FULL ONE YEAR WARRANTY ON AIR COMPRESSORS
If this air compressor fails due to a defect in material or workmanship within
one year from the date of purchase, RETURN IT TO THE NEAREST SEARS
SERVICE CENTER THROUGHOUT CANADA AND SEARS WILL REPAIR IT,
FREE OF CHARGE.
If this air compressor is used for commercial or rental purposes, the warranty
will apply for ninety days (90) from the date of purchase.
This Craftsman Air Compressor warranty gives you specific legal rights and
you may have other rights which vary from province to province.
Sears Canada, Inc., Toronto, Ont. M5B 2B8
TABLE OF CONTENTS
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SPECIFICATION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SAFETY GUIDELINES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DUTY CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15
MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SERVICE AND ADJUSTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-18
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-21
AIR COMPRESSOR DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
AIR COMPRESSOR PUMP DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . 24
PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
FRANÇAIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-51
HOW TO ORDER REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . .Back Cover
WARRANTY

3- ENG A14083
SPECIFICATION CHART
Model No. 919-724123
Running HP 1.5
Bore 1-7/8"
Stroke 1-1/4"
Voltage-Single Phase 120
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
SCFM @ 40 psig 4.9
SCFM @ 90 psig 3.5
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.
Refer to Glossary for abbreviations.

4- ENG
A14083
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 A14083
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
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
Drain tank daily or after each use.
If tank develops a leak, replace it
immediately with a new tank or replace
the entire compressor.
1. Failure to properly drain
condensed water from 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.
Never drill into, weld, or make any
modifications to the tank or its
attachments.
4. 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.

6- ENG
A14083
HOW TO PREVENT IT
WHAT CAN HAPPEN
WARNING: Risk to Breathing
WARNING: Risk of Electrical Shock
HOW TO PREVENT IT
WHAT CAN HAPPEN
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.
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.
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 materials
you are spraying. Use a NIOSH/ MSHA
approved respirator designed for use
with your specific application.

7- ENG A14083
HOW TO PREVENT IT
WHAT CAN HAPPEN
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.
HOW TO PREVENT IT
WHAT CAN HAPPEN
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.
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.
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
How To Prevent ItWhat Could Happen

8- ENG
A14083
HOW TO PREVENT IT
WHAT CAN HAPPEN
WARNING: Risk 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 injury or death to
you or others.
HAZARD
HOW TO PREVENT IT
WHAT CAN HAPPEN
WARNING: Risk or 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

9- ENG A14083
GLOSSARY
DUTY CYCLE
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.
When the tank pressure drops to a
certain low level the motor will restart
automatically. The low pressure
at which the motor automatically
restarts is called "cut-in" pressure.
Cut-Out Pressure: When an air
compressor is turned on and begins
to run, air pressure in the air tank
begins to build. It builds to a certain
high pressure before the motor
automatically shuts off - protecting
your air tank from pressure higher
than its capacity. The high pressure
at which the motor shuts off is called
"cut-out" pressure.
Branch Circuit: Circuit carrying
electricity from electrical panel to
outlet.
This unit is capable of powering the following Accessories. The accessories are
available through the current Power and Hand Tool Catalog or full-line Sears
stores.
Accessories
• In Line Filter
• Tire Air Chuck
• Quick Connector Sets (various
sizes)
• Air Pressure Regulators
• Oil Fog Lubricators
• Air Hose: 1/4", 3/8" or 1/2" I.D. in
various lengths
Refer to the selection chart located
on the unit to select the tools this unit
is capable of powering.
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
A14083
ASSEMBLY
Tools Required for
Assembly
1 - 9/16" socket or open end
wrench
1 - 3/8" socket
Contents of Carton
1 - Air Compressor
2 - Wheels
2 - Shoulder Bolts, 3/8-16
2 - Hex Nuts, 3/8-16
2 - Molded Foot Bumpers
1 - Handle
1 - Handle Grip
2 - Screws, #10-16 x 1
It will be necessary
to brace or support
one side of the outfit when
installing the wheels because the
compressor will have a tendency to
tip over.
3. Install one shoulder bolt and
one nut for each wheel. Tighten
securely. The outfit will sit level if
the wheels are properly installed.
4. Clean and dry underside of
air tank leg opposite wheels.
Remove the protective strip from
the adhesive backed molded
foot bumpers. Attach the foot
bumpers to the bottom of leg
on each end. Press firmly into
place.
Installing Handles,
Wheels, and Molded Foot
Bumpers
The wheels
and handle do
not provide adequate clearance,
stability or support for pulling the
unit up and down stairs or steps.
The unit must be lifted, or pushed
up a ramp.
1. Submerge handle grip into warm
soapy water to make installation
easier. Remove handle grip from
soapy water and slide onto
handle.
2. Slide handle through holes in
compressor saddle onto tabs.
Secure with screws, one on each
side.
Wheel
Shoulder Bolt
Nut
Handle
Tab Screw
Compressor Saddle
Molded Foot Bumpers

11- ENG A14083
IMPORTANT: The outlet being used
must be installed and grounded in
accordance with all local codes and
ordinances.
2. Make sure the outlet being used
has the same configuration
as the grounded plug. DO
NOT USE AN ADAPTER. See
illustration.
3. Inspect the plug and cord before
each use. Do not use if there are
signs of damage.
4. If these grounding instructions
are not completely understood,
or if in doubt as to whether
the compressor is properly
grounded, have the installation
checked by a qualified
electrician.
IMPROPER
GROUNDING CAN
RESULT IN ELECTRICAL SHOCK.
Do not modify the plug provided. If
it does not fit the available outlet,
a correct outlet should be installed
by a qualified electrician.
Repairs to the cord set or plug
MUST be made by a qualified
electrician.
INSTALLATION
GROUNDING INSTRUCTIONS
RISK OF
ELECTRICAL
SHOCK. In the event of a short
circuit, grounding reduces the risk
of shock by providing an escape
wire for the electric current. This
air compressor must be properly
grounded.
The portable air compressor is
equipped with a cord having a
grounding wire with an appropriate
grounding plug (see following
illustrations). The plug must be used
with an outlet that has been installed
and grounded in accordance with all
local codes and ordinances.
1. The cord set and plug with this
unit contains a grounding pin.
This plug MUST be used with a
grounded outlet.
HOW TO SET UP YOUR UNIT
Location of the Air Compressor
Locate the air compressor in a
clean, dry and well ventilated area.
The air compressor should be
located at least 12" away from the
wall or other obstructions that will
interfere with the flow of air. The
air compressor pump and shroud
are designed to allow for proper
cooling. The ventilation openings
on the compressor are necessary
to maintain proper operating
temperature. Do not place rags or
other containers on or near these
openings. Grounding Pin
Grounded
Outlets
Plug

12- ENG
A14083
Extension Cords
Use extra air hose instead of an
extension cord to avoid voltage drop
and power loss to the motor, and to
prevent overheating.
If an extension cord must be used, be
sure it is:
• a 3-wire extension cord that has
a 3-blade grounding plug, and a
3-slot receptacle that will accept
the plug on the product
• in good condition
• no longer than 50 feet
• 12 gauge (AWG) or larger. (Wire
size increases as gauge number
decreases. 10 AWG and 8 AWG
may also be used. DO NOT USE
14 OR 16 AWG.)
Voltage and Circuit Protection
Refer to the specification chart for the
voltage and minimum branch circuit
requirements.
Certain air compressors can be
operated on a 15 amp circuit if the
following conditions are met.
1. Voltage supply through branch
circuit is 15 amps.
2. Circuit is not used to supply any
other electrical needs (lights,
appliances, etc.).
3. Extension cords comply with
specifications.
4. Circuit is equipped with a
15 amp circuit breaker or 15
amp time delay fuse. NOTE: If
compressor is connected to a
circuit protected by fuses, use
only time delay fuses. Time delay
fuses should be marked "D" in
Canada and "T" in the US.
If any of the above conditions
cannot be met, or if operation of
the compressor repeatedly causes
interruption of the power, it may be
necessary to operate it from a 20
amp circuit. It is not necessary to
change the cord set.

13- ENG A14083
Outlet Pressure Gauge: The outlet
pressure gauge indicates the air
pressure available at the outlet side
of the regulator. This pressure is
controlled by the regulator and is
always less than or equal to the tank
pressure.
Tank Pressure Gauge: The tank
pressure gauge indicates the reserve
air pressure in the tank.
Regulator: Controls the air pressure
shown on the outlet pressure
gauge. Pull the knob out and turn
clockwise to increase pressure
and counterclockwise to decrease
pressure. When the desired pressure
is reached push knob in to lock in
place.
Universal Quick-Connect Body:
The universal quick-connect body
accepts the three most popular styles
of quick-connect plugs- Industrial,
automotive (Tru-flate), and ARO. One
hand push-to-connect operation
makes connections simple and easy.
Description of Operation
Become familiar with these controls
before operating the unit.
On/Auto/Off Switch: Turn this switch
"ON/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. 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.
Outlet
Pressure Gauge
Universal Quick
Connect Body
Safety Valve
Regulator
Tank
Pressure Gauge

14- ENG
A14083
Drain Valve: The drain valve is
located at the base of the air tank
and is used to drain condensation at
the end of each use.
Cooling System (not shown): This
compressor contains an advanced
design cooling system. At the heart of
this cooling system is an engineered
fan. It is perfectly normal for this fan
to blow air through the vent holes
in large amounts. You know that the
cooling system is working when air is
being expelled.
Air Compressor Pump (not shown):
Compresses air into the air tank.
Working air is not available until the
compressor has raised the air tank
pressure above that required at the
air outlet.
Check Valve: When the air
compressor is operating, the check
valve is "open", allowing compressed
air to enter the air tank. When the
air compressor reaches "cut-out"
pressure, the check valve "closes",
allowing air pressure to remain inside
the air tank.
Before Starting
Break-in Procedure
Serious damage
may result if the
following break-in instructions are
not closely followed.
This procedure is required before the
air compressor is put into service and
when the check valve or a complete
compressor pump has been replaced.
1. Make sure the On/Auto/Off lever
is in the "OFF" position.
NOTE: Pull coupler back until it clicks
to prevent air from escaping through
the quick connect.
2.
Plug the power cord into the
correct branch circuit receptacle.
(Refer to Voltage and Circuit
Protection paragraph in the
Installation section of this
manual.)
3. Open the drain valve fully
(counter-clockwise) to permit
air to escape and prevent air
pressure build up in the air tank
during the break-in period.
4. Set the On/Auto/Off lever to
"ON/AUTO" position. The
compressor will start.
5. Run the compressor for 15
minutes. Make sure the drain
valve is open and there is
minimal air pressure build-up in
tank.
6. After 15 minutes, close the drain
valve (clockwise). The air receiver
will fill to "cut-out" pressure and
the motor will stop.
The compressor is now ready for use.
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
Check Valve
Drain
Valve

15- ENG A14083
How to Start:
1. Turn the On/Auto/Off lever to
"ON/AUTO" and allow tank
pressure to build. Motor will
stop when tank pressure reaches
"cut-out" pressure.
2. Pull the regulator knob out
and turn clockwise to increase
pressure. When the desired
pressure is reached push knob in
to lock in place. The compressor
is ready for use.
NOTE: Always operate the air
compressor in well-ventilated areas
free of gasoline or other combustible
vapors. If the compressor is being
used to operate a sprayer DO NOT
place near the spray area.
Before Each Start-Up:
1. Set On/Auto/Off lever to "OFF"
and close air regulator.
2. Pull regulator knob out, turn
counter-clockwise until it stops.
Push knob in to lock in place.
3. Attach hose and accessories.
NOTE: The hose or accessory
will require a quick connect plug
if the air outlet is equipped with a
quick connect socket.
Too much air
pressure causes a
hazardous risk of bursting. Check
the manufacturer’s maximum
pressure rating for air tools and
accessories. The regulator outlet
pressure must never exceed the
maximum pressure rating.

16- ENG
A14083
MAINTENANCE
Customer Responsibilities
Daily
or after
each
use
Before
each
use
●
●
Check Safety Valve
Drain Tank
NOTE: See Operation section for the
location of controls.
Unit cycles
automatically when
power is on. When performing
maintenance, you may be exposed
to voltage sources, compressed air,
or moving parts. Personal injuries
can occur. Before performing any
maintenance or repair, disconnect
power source from the compressor
and bleed off all air pressure.
To Check Safety Valve
If the safety valve
does not work
properly, over-pressurization may
occur, causing air tank rupture or
an explosion.
1. Before starting compressor, pull
the ring on the safety valve to
make sure that the safety valve
operates freely. If the valve
is stuck or does not operate
smoothly, it must be replaced
with the same type of valve.
To Drain Tank
1. Set the On/Auto/Off lever to
"OFF".
2. Pull the regulator knob out and
turn counter-clockwise to set the
outlet pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
5. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
Water will condense
in the air tank. If
not drained, water will corrode and
weaken the air tank causing a risk
of air tank rupture.
6. After the water has been drained,
close the drain valve (clockwise).
The air compressor can now be
stored.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, the
reinstalled.

17- ENG A14083
4. Unscrew the check valve (turn
counterclockwise) using a socket
wrench.
5. Make sure the valve disc moves
freely inside the check valve
and the spring holds the disc in
the upper, closed position. The
check valve may be cleaned
with a solvent, such as paint and
varnish remover.
6. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
7. Replace the outlet tube and
tighten the nut.
8. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
SERVICE AND ADJUSTMENTS
Unit cycles
automatically
when power is on. When doing
Maintenance, you may be exposed
to voltage sources, compressed air
or moving parts. Personal injuries
can occur. Before performing any
Maintenance or repair, unplug the
compressor and bleed off all air
pressure.
ALL MAINTENANCE AND REPAIR
OPERATIONS NOT LISTED MUST
BE PERFORMED BY TRAINED
SERVICE TECHNICIAN.
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
To Replace or Clean Check
Valve
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug outfit.
3. Loosen the nut on the outlet tube
and move the outlet tube to the
side.
Outlet Tube
Check
Valve
Nut

18- ENG
A14083
STORAGE
Before you store the air compressor,
make sure you do the following:
1. Review the "Maintenance"
section on the preceding
pages and perform scheduled
maintenance as necessary.
2. Set the On/Auto/Off lever to
"OFF".
3. Turn the regulator
counterclockwise and set the
outlet pressure to zero.
4. Remove the air tool or accessory.
5. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
6. Drain water from air tank by
opening drain valve on bottom of
tank.
Water will condense
in the air tank. If
not drained, water will corrode and
weaken the air tank causing a risk
of air tank rupture.
7. After the water has been drained,
close the drain or drain valve.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, then
reinstalled.
8. Protect the electrical cord and
air hose from damage (such as
being stepped on or run over).
Wind them loosely around
the compressor handle. (If so
equipped)
Store the air compressor in a clean
and dry location.
5. Using an adjustable wrench or
5/8" wrench remove the regulator
manifold.
6. Apply pipe sealant to new
regulator manifold and assemble,
tighten with wrench.
7. Reapply pipe sealant to gauges,
quick connect, and safety valve.
8. Reassemble all components in
reverse order of removal. Make
sure to orient gauges to read
correctly and use wrenches to
tighten all components.
To Replace Regulator
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug unit.
3. Using an adjustable wrench or
specified wrench remove the
gauges (7/16" wrench), quick
connect (13/16" wrench), and
safety valve (9/16" wrench) from
the regulator manifold.
4. Remove the hose by removing
the hose clamp. NOTE: The hose
clamp is not reusable. You must
purchase a new hose clamp, see
the Parts List Manual or purchase
a standard hose clamp at a local
hardware store.
Regulator
Manifold
Hose Clamp
Gauges
Regulator
Manifold
Quick
Connect
Safety Valve

19- ENG A14083
TROUBLESHOOTING
Performing repairs may expose voltage sources, moving
parts or compressed air sources, moving parts or
compressed air sources. Personal injury may occur. Prior to attempting
any repairs, unplug the air compressor and bleed off all air tank air
pressure.
PROBLEM CAUSE CORRECTION
Pressure switch does
not shut off motor when
compressor reaches "cut-
out" pressure.
Pressure switch "cut-out"
too high.
Move On/Auto/Off lever
to the "OFF" position, if
the outfit does not shut off
contact a Trained Service
Technician.
Contact a Trained Service
Technician.
Excessive tank
pressure - safety
valve pops off.
Tube fittings are not tight
enough.
Tighten fittings where air
can be heard escaping.
Check fittings with soapy
water solution. Do Not
Overtighten.
Air leaks at
fittings.
Air leaks in air
tank or at air
tank welds.
Defective air tank. Air tank must be replaced.
Do not repair the leak.
Do not drill
into, weld or
otherwise modify air tank
or it will weaken. The tank
can rupture or explode.
Air leaks
between head
and valve plate.
Leaking seal. Contact a Trained Service
Technician.
Possible defect in safety
valve.
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced.
Air leak from
safety valve.
Possible defect in safety
valve.
Operate safety valve
manually by pulling on ring.
If valve still leaks, it should
be replaced.
Knocking Noise.

20- ENG
A14083
Regulator will
not shut off air
outlet.
Damaged regulator. Replace.
PROBLEM CAUSE CORRECTION
It is normal for "some"
pressure drop to occur.
If there is an excessive
amount of pressure drop
when the accessory is used,
adjust the regulator following
the instructions in the
"Description of Operation"
paragraph in the Operation
Section.
NOTE: Adjust the regulated
pressure under flow
conditions (while accessory is
being used).
Compressor is
not supplying
enough air
to operate
accessories.
Prolonged excessive use of
air.
Compressor is not large
enough for air requirement.
Hole in hose.
Check valve restricted.
Air leaks.
Decrease amount of air
usage.
Check the accessory
air requirement. If it is
higher than the SCFM or
pressure supplied by your
air compressor, you need a
larger compressor.
Check and replace if
required.
Remove and clean, or
replace.
Tighten fittings.
Damaged regulator. Replace.
Regulator knob
has continuous
air leak.
Pressure reading
on the regulated
pressure gauge
drops when an
accessory is
used.