Craftsman 919.166701 User manual

Owner’s Manual
Permanently Lubricated
2-Stage
Twin V
Portable
AIR COMPRESSOR
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
• Repair Parts
Model No.
919.166701
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
A13570 Rev. 2 08/10/06

2- ENG
A13570
TABLE OF CONTENTS
WARRANTY
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
SERVICE AND ADJUSTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-23
REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27
ESPAÑOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-49
NOTES/NOTAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-51
HOW TO ORDER REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . back cover
ONE YEAR FULL WARRANTY
If this product 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 Sears at 1-800-4-MY-HOME®to arrange for repair, or return it
to the place of purchase for replacement.
If this product 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 A13570
SPECIFICATION CHART
SAFETY GUIDELINES - DEFINITIONS
Indicates an
imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, could result in
death or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, may result in
minor or moderate injury.
Used without the
safety alert symbol
indicates a potentially hazardous
situation which, if not avoided, may
result in property damage.
This manual contains information that is important for you to know and understand. This information
relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you
recognize this information, we use the symbols below. Please read the manual and pay attention to
these sections.
IMPORTANT SAFETY INSTRUCTIONS
Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known (to the State of California) to
cause cancer, birth defects or other reproductive harm. Some example of these chemicals are:
• lead from lead-based paints
• crystalline silica from bricks and cement and other masonry products
• arsenic and chromium from chemically-treated lumber
Your risk from these exposures varies, depending on how often you do this type of work.
To reduce your exposure to these chemicals: work in a well ventilated area, and work with
approved safety equipment, always wear MSHA/NIOSH approved, properly fitting face mask or
respirator when using such tools.
When using air tools, basic safety precautions should always be followed to reduce the risk of
of personal injury.
SAVE THESE INSTRUCTIONS
IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT
IN SERIOUS INJURY AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL
WARNINGS AND OPERATING INSTRUCTIONS BEFORE USING THIS EQUIPMENT.
Model No. 919-166701
Running Horsepower 1.8
Bore 2.375”
Stroke High Pressure - .54”
Low Pressure - 1.45"
Voltage-Single Phase 115/60/1
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity - Gallons 20
Approximate Cut-in Pressure 145
Approximate Cut-out Pressure 175
SCFM @ 40 psig 5.6
SCFM @ 90 psig 5.1
Refer to Glossary for abbreviations.

4- ENG
A13570
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 A13570
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
A13570
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.
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.
How To Prevent It
What Could Happen
How To Prevent It
What Could Happen

7- ENG A13570
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 It
What Could Happen

8- ENG
A13570
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 A13570
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", 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.
DUTY CYCLE
Air compressors should be operated
on not more than a 50% duty cycle.
This means an air compressor that
pumps air more than 50% of one
hour is considered misuse, because
the air compressor is undersized for
the required air demand. Maximum
compressor pumping time per hour is
30 minutes.

10- ENG
A13570
ASSEMBLY
Tools Required for Assembly
1 - 9/16" socket or open end wrench
1 - 1/2" socket or open end wrench
Contents of Carton
1 - Air Compressor
2 - Wheels
2 - Shoulder Bolts, 3/8-16
2 - Hex Nuts, 3/8-16
2 - Rubber Bumpers
2 - Screws, 1/4-20 x .75"
1 - Quick Connect
1 - Safety Check Valve
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.
It may be
necessary to brace
or support one end of the unit
when attaching the wheels and
the rubber feet, because the air
compressor will have a tendency
to tip.
1. Place shoulder bolt (C) through
wheel (B) and position it into the
hole of the mounting bracket
(protruding hub to the inside).
E
D
A
B
C
2. Attach the rubber feet (D) to the
bottom of the front bracket using
the screws (E) provided.
3. Rotate handle into operating
position as shown.
NOTE: Handles will lock into
place.
Thread nut (A) onto shoulder
bolt and tighten firmly with a
9/16" wrench. Repeat to install
second wheel.

11- ENG A13570
INSTALLATION
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.The air filter must be kept
clear of obstructions which could
reduce air flow to the air compressor.
GROUNDING INSTRUCTION
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.
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.
Grounding Pin
Grounded
Outlets
Plug

12- ENG
A13570
Extension Cords
Using extension cords is not
recommended. The use of extension
cords will cause voltage to drop
resulting in power loss to the motor
and overheating.
Attach extra air hoses at the air outlet
instead of using extension cords.
If an extension cord must be used,
be sure it is:
• a 3-wire extension cord that has
a 3-blade grounding plug, and a
3-slot receptacle that will accept
the plug on the product
• in good condition
• no longer than 50 feet
• 12 gauge (AWG) or larger. (Wire
size increases as gauge number
decreases. 10 AWG and 8 AWG
may also be used. DO NOT USE
14 OR 16 AWG.)
Voltage and Circuit Protection
Refer to the Parts Manual for the
voltage and minimum branch circuit
requirements.
Certain air compressors can be
operated on a 15 amp circuit if the
following conditions are met.
1. Voltage supply through branch
circuit is 15 amps.
2. Circuit is not used to supply any
other electrical needs (lights,
appliances, etc.).
3. Extension cords comply with
specifications.
4. Circuit is equipped with a
15 amp circuit breaker or 15
amp time delay fuse. NOTE: If
compressor is connected to a
circuit protected by fuses, use
only time delay fuses. Time delay
fuses should be marked "D" in
Canada and "T" in the US.
If any of the above conditions
cannot be met, or if operation of
the compressor repeatedly causes
interruption of the power, it may be
necessary to operate it from a 20
amp circuit. It is not necessary to
change the cord set.

13- ENG A13570
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.
E
B
A
CD
F
GH
Drain Valve (not shown): The
drain valve is located at the base
of the air tank and is used to drain
condensation at the end of each use.
Motor Thermal Overload Protector
(not shown): The electric motor
has an automatic thermal overload
protector. If the motor overheats for
any reason, the thermal overload
protector will shut off the motor. The
motor must be allowed to cool before
restarting.
ON/AUTO - OFF Switch (A): Turn
this switch ON to provide automatic
power to the pressure switch and
OFF to remove power at the end of
each use.
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.
Air Compressor Pump (not shown):
Compresses air into the air tank.
Check Valve (not shown): 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 (not
shown): The pressure release valve
located on the side of the pressure
switch, is designed to automatically
release compressed air from the
compressor head and the outlet tube
when the air compressor reaches
"cut-out" pressure or is shut off.
The pressure release valve allows
the motor to restart freely. When
the motor stops running, air will be
heard escaping from this valve for a
few seconds. No air should be heard
leaking when the motor is running, or
continuous leaking after unit reaches
cut-out pressure.
Pressure Switch (B): 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 (C): 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).

To operate "Quadraport" at a
remote location:
Can cause
serious injury or
death. Tank may contain 175 psi
or air pressure. Never connect
accessories to unregulated air.
Never operate tools or accessories
above marked maximum pressure.
Reduce air
pressure in tank to
60 psi maximum before removing
or connecting "QUADRAPORT"
and when connecting hose to tank
quick-connect coupler.
14- ENG
A13570
Outlet Pressure Gauge (D): 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. All four outlets operate at
this pressure.
Tank Pressure Gauge (E): The
tank pressure gauge indicates the
reserve air pressure in the tank. The
"quadraport" is equipped with an
tank pressure gauge to be read at a
remote location.
Regulator (F): 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.
Portable "Quadraport" Control
Panel (G): Permits remote air
regulation and control closer to
work area, includes four high-flow
industrial/automotive style compatible
quick-connects, large gauges, and a
high-flow regulator.
Universal Quick-Connect Body (H):
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.
Portable "Quadraport" Control
Panel
The "Quadraport" allows remote air
regulation and control closer to the
work area.
Operates
attached... or at a
remote location
To operate "Quadraport"
attached:
1. Attach 3/8" hoses (A) with 1/4"
industrial quick-connect fittings
(B) to the outlets (C). One to four
tools can be used at the same
time.
Note:Always use pipe sealant tape
when connecting hoses or fittings to
prevent air leaks.
B
C
A

1. Hold "quadraport" and pull
quick- connect coupler (D) back
to release and remove as shown.
15- ENG A13570
DD
E
G
F
2. Attach one end of a 1/2" hose
(E) with 3/8" quick-connect back
flow safety check valve (F)
(provided in kit) as shown. Make
sure quick-connect coupler is
secure.
To prevent
possible injury,
ALWAYS use back flow safety
check valve included with unit
to connect "quadraport" to hose
for use at a remote location. If
replacement back flow safety
check valve is needed refer to the
Parts Manual.
Note: Always use pipe sealant tape
when connecting hoses or fittings to
prevent air leaks.
3. Attach the other end of the 1/2"
hose (E) with 3/8" universal quick
connect body (G) to the
"quadraport" as shown. NOTE:
As shown below to assemble
3/8" universal quick connect
body to hose.
3/8" Universal quick
connect body
Connector
Hose
3/8" Universal quick
connect body
Hose
OR
4. Attach 3/8" hoses (A) with 1/4"
industrial quick-connect plugs (B)
to the outlets (C). One to four
tools can be used at the same
time.
5. The "quadraport" can be
temporarily or permanently
mounted at the work site using
the three mounting holes (F).
B
C
A
F

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: Your unit could be
damaged if the pressure switch
lever is in the ON/AUTO position.
2. Plug the power cord into
the correct branch circuit
receptacle. (Refer to Voltage
and Circuit Protection
paragraph in the Installation
section of this manual.)
3. Open the drain valve fully
(counter-clockwise) to permit
air to escape and prevent
air pressure build up in the
air tank during the break-in
period.
4. Move the On/Auto/Off lever
to "ON/AUTO" position. The
compressor will start.
5. Run the compressor for 15
minutes. Make sure the drain
valve is open and there is
minimal air pressure build-up
in tank.
6. After 15 minutes, move the
On/Auto/Off lever to "OFF"
position and close the drain
valve (clockwise).
16- ENG
A13570
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF".
7. Move the On/Auto/Off lever
to "ON/AUTO" position. The
air receiver will fill to "cut-out"
pressure and the motor will
stop.
The compressor is now ready for
use.
Before Each Start-Up:
1. Place On/Auto/Off lever to
"OFF".
2. Pull regulator knob out, turn
counter-clockwise until it stops.
Push knob in to lock in place.
3. Attach hose and accessories.
See the Portable "Quadraport"
Control Panel paragraph in this
section.
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.
How to Start:
1. Turn the On/Auto/Off lever to
"AUTO" and allow tank pressure
to build. Motor will stop when
tank pressure reaches "cut-out"
pressure.
2. Pull the regulator knob out
and turn clockwise to increase
pressure. When the desired
pressure is reached push knob in
to lock in place. The compressor
is ready for use.
NOTE: Always operate the air
compressor in well-ventilated
areas free of gasoline or other
combustible vapors. If the
compressor is being used to
operate a sprayer DO NOT place
near the spray area.

17- ENG A13570
MAINTENANCE
Customer Responsibilities
Daily
or after
each
use
Before
each
use
●
●
●
Every
40
hours
Every
100
hours
Yearly
●1
1- more frequent in dusty or humid conditions
Check Safety Valve
Drain Tank
Air Filter
NOTE: See Operation section for the
location of controls.
To ensure efficient operation and
longer life of the air compressor unit,
a routine maintenance schedule
should be prepared and followed.
The above routine maintenance
schedule is geared to an unit in a
normal working environment
operating on a daily basis. If
necessary, the schedule should be
modified to suit the conditions under
which your compressor is used. The
modifications will depend upon the
hours of operation and the working
environment. Compressor units in an
extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
Unit cycles
automatically when
power is on. When performing
maintenance, you may be exposed
to voltage sources, compressed air,
or moving parts. Personal injuries
can occur. Before performing any
maintenance or repair, disconnect
power source from the compressor
and bleed off all air pressure.
To Check Safety Valve
If the safety valve
does not work
properly, over-pressurization may
occur, causing air tank rupture or
an explosion.
1. Before starting compressor, pull
the ring on the safety valve to
make sure that the safety valve
operates freely. If the valve
is stuck or does not operate
smoothly, it must be replaced
with the same type of valve.
Air compressor pump intake
and exhaust valves ●
To Drain Tank
1. Set the On/Auto/Off lever to
"OFF".
2. Pull the regulator knob out and
turn counter-clockwise to set the
outlet pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately
20 psi. Release safety valve ring.
5. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
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.

18- ENG
A13570
6. After the water has been drained,
close the drain valve (clockwise).
The air compressor can now be
stored.
NOTE: If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, the
reinstalled.
Air Filter Inspection and
Replacement
Hot surfaces.
Risk of burn.
Compres-sor heads are exposed
when filter cover is removed.
Allow compressor to cool prior to
servicing.
A dirty air filter will not allow the
compressor to operate at full
capacity. Keep the air filter clean at
all times.
1. Remove the air filter cover.
2. Remove the air filter and make
sure it is clean.
IMPORTANT: Do not operate
the compressor with the air filter
removed.
3. If dirty, rinse air filter with warm
water and squeeze dry.
4. Replace air filter and air filter
cover.
NOTE: If the air filter is extremely
dirty it will need to be replaced. Refer
to the Repair Parts for the correct
part number.
Air Filter
Air Filter
Cover
Motor
The motor has an automatic reset
thermal overload protector. If the
motor overheats for any reason, the
overload protector will shut off the
motor. The motor must be allowed
to cool down before restarting. The
compressor will automatically restart
after the motor cools.
If the overload protector shuts the
motor off frequently, check for a
possible voltage problem. Low
voltage can also be suspected when:
1. The motor does not get up to full
power or speed.
2. Fuses blow out when starting
the motor; lights dim and remain
dim when motor is started and is
running.
Air Compressor Pump Intake
and Exhaust Valves
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.

7. Unscrew the check valve (turn
counterclockwise) using a 7/8"
open end wrench. Note the
orientation for reassembly.
8. Using a screwdriver, carefully
push the valve disc up and
down. NOTE: The valve disc
should move freely up and down
on a spring which holds the valve
disc in the closed position; if
not the check valve needs to be
cleaned or replaced.
9. Clean or replace the check
valve. A solvent, such as paint or
varnish remover can be used to
clean the check valve.
10. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
11. Replace the pressure release
tube. Tighten nut.
12. Replace the outlet tube and
tighten nut.
13. Replace the shroud and air filter.
14. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
19- ENG A13570
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 A 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 unit.
3. Using a phillips screwdriver,
remove the air filter cover.
4. Remove the rear shrouds using
T-20 torx wrench.
5. Using an adjustable wrench,
loosen outlet tube nut at air tank.
Carefully move outlet tube away
from check valve.
6. Using an adjustable wrench
loosen pressure relief tube nut at
air tank. Carefully move pressure
relief tube away from check
valve.
Outlet Tube
Check
Valve
Nut
Nut
Pressure
Relief
Tube
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver

20- ENG
A13570
STORAGE
10. Store the air compressor in a
clean and dry location.
To Transport unit
1. Fold handles into storage
position. The unit is too
heavy to be lifted
by one person. Use two people to
lift unit.
2. Locate the lift handles (C) on
each side of the unit.
3. With a person on each side,
carefully lift unit using handle (B)
and lift handle (C).
Always lift with
legs not back.
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" lever to
"OFF".
3. Turn the regulator
counterclockwise and set the
outlet pressure to zero.
4. Remove the air tool or accessory.
Tank can contain
175 psi of air
pressure. Always stand clear when
bleeding air through safety valve.
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 cock 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 cock or drain
valve.
Note: If drain cock 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).
9. While lifting tab (A) rotate handle
(B) into storage position.
C
B
B
A