Craftsman 919.167280 User manual

Owner's Manual
]CRRFTSMRN 1
Permanently Lubricated
Single Stage
Portable
AIR COMPRESSOR
Model No.
919.167280
• Safety Guidelines
• Assembly
• Operation
•Maintenance
•Service and AdJustments
•Troubleshooting
•Repair Parts
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before Oper-
atin 9,
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.
Visit our Craftsman website: www.sears.com/craftsman
A16751 Rev. 0 2/15/06

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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 ......................................... 17-20
SERVICE AND ADJUSTMENTS ............................ 21-22
STORAGE ................................................. 22
TROUBLESHOOTING GUIDE .............................. 23-26
REPAIR PARTS .......................................... 28-31
ESPAI_IOL .............................................. 32-56
NOTES/NOTAS ............................................. 57
REPAIR PROTECTION AGREEMENTS ......................... 58
HOW TO ORDER REPAIR PARTS ....................... back cover
tVArl-,1:_:f'-,1_I Ik'A
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
A16751 2-ENG

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Model No. 919.167280
Running HP 2.0
Bore 2.38"
Stroke 1.35"
Voltage-Single Phase 120V/60HZ/1PH
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 26
Approx. Cut-In 120
Approx. Cut-out 150
SCFM q-P40 psig 8.6
SCFM q-P90 psig 6.4
Refer to Glossary for abbreviations.
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This manual contains information that is important for you to know and under-
stand. 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 symbols.
_ Indicates an imminent-
ly 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, _ 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.
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_Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contains chemi-
cals 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,
3-ENG A16751

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_Q Save these instructions _O
Improper operation or maintenance of this product could result in serious injury and prop-
erty damage, Read and understand all warnings and operation instructions before using
this equipment,
I-=¥_*_j_*_=ND]
What Could Happen How To Prevent It
It is normal for electrical contacts within Always operate the compressor in a well
the motor and pressure switch to spark, ventilated area free of combustible ma-
terials, gasoline, or solvent vapors.
If electrical sparks from compressor come If spraying flammable materials, locate
into contact with flammable vapors, they compressor at least 20 feet away from
may ignite, causing fire or explosion, spray area. An additional length of hose
may be required.
Store flammable materials in asecure
location away from compressor.
WARNING: Risk of explosion or fire
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.
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.
A16751 4-ENG

I-"¥-*_J-'1_ND_
WARNING: Risk of Bursting I_1
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.
What Could Happen How To Prevent It
Failure to properly drain condensed Drain tank daily or after each use. If tank
water from tank, causing rust and develops a leak, replace it immediately
thinning of the steel tank. with a new tank or replace the entire
compressor.
Modifications or attempted repairs to
the tank.
Unauthorized modifications to the
unloader valve, safety valve, or any
other components which control tank
pressure.
Excessive vibration can weaken the
air tank and cause rupture or
explosion
ATTACHMENTS &ACCESSORIES:
Exceeding the pressure rating of air
tools, spray guns, air operated
accessories, tires, and other inflatables
can cause them to explode or fly apart,
and could result in serious injury.
Never drill into, weld, or make any
modifications to the tank or its
attachments.
The tank is designed to withstand specific
operating pressures. Never make
adjustments or parts substitutions to
alter the factory set operating
pressures.
For essential control of air pressure, you
must install a pressure regulator and
pressure gauge to the air outlet (if not
equipped) of your compressor. Follow the
equipment manufacturers recommendation
and never exceed the maximum allowable
pressure rating of attachments. Never use
compressor to inflate small low
pressure objects such as children's toys,
footballs, basketballs, etc.
I-"7-'IrJ-'1,ND]
WARNING: Risk from Flying Objects
What Could Happen How To Prevent It
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.
5-ENG A16751

i-"7__j__I,ND1
WARNING: Risk of Electrical Shock
What Could Happen
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.
How To Prevent It
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.
I-"7-'_J-'1_ND]
WARNING: Risk to Breathing
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.
Sprayed materials such as paint, paint
solvents, paint remover, insecticides,
weed killers, may contain harmful va-
pors and poisons.
How To Prevent It
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 safe-
ty 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 appli-
cable 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 ap-
proved respirator designed for use
with your specific application.
A16751 6-ENG

1"-7__VJ__I:_D1
WARNING: Risk of Burns
What Could Happen
Touching exposed metal such as the
compressor head or outlet tubes, can
result in serious burns.
How To Prevent It
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 [_ _
What Could Happen How To Prevent It
Moving parts such as the pulley, Never operate the compressor with
flywheel, and belt can cause serious guards or covers which are damaged or
injury if they come into contact with you removed.
or your clothing.
Attempting to operate compressor with Any repairs required on this product
damaged or missing parts or should be performed by authorized
attempting to repair compressor with service center personnel.
protective shrouds removed can expose
you to moving parts and can result in
serious injury.
WARNING: Risk of Falling
What Could Happen
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.
How To Prevent It
Always operate compressor in astable
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.
7-ENG A16751

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[_7
WARNING: Risk of Serious InJury or Property Damage I_1
When Transporting Compressor
(Fire, Inhalation, Damage to Vehicle Surfaces)
What Could Happen
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.
How To Prevent It
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.
I: r:IrJ:l :_e]
WARNING: Risk of Unsafe Operation I_1
What Could Happen How To Prevent It
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
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.
SAVE THESE INSTRUCTIONS
A16751 8-ENG

Become familiar with these terms
before operating the unit.
CFM: Cubic feet per minute.
SOFM: Standard cubic feet per min-
ute; a unit of measure of air delivery.
PSlG: 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 auto-
matically. 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 au-
tomatically 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 elec-
tricity from electrical panel to outlet.
p':To_o.]$"I,,,_o]_31$_
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.
mlll li'i [_'£N II _
This air compressor pump is capable
of running continuously. However, to
prolong the life of your air compres-
sor, it is recommended that a 50%-
75% average duty cycle be main-
tained; that is, the air compressor
pump should not run more than 30-45
minutes in any given hour.
9-ENG A16751

Unpacking
1. Remove unit from carton and discard all packaging.
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.
GROUNDINGINSTRUCTIONS
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 compres-
sor must be properly grounded.
The portable air compressor is
equipped with a cord having a
grounding wire with an appropriate
grounding plug (see following illustra-
tions).
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.
Make sure the outlet being used
has the same configuration as the
grounded plug. DO NOT USE AN
ADAPTER. See illustration.
Grounding Pin
Grounded
Outlets
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.
Risk of Electrical
Shock. 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 elec-
trician.
A16751 10- ENG

Extension Cords
Using extension cords is not recom-
mended. The use of extension cords
will cause voltage to drop resulting in
power loss to the motor and over-
heating.
Instead of using an extension cord,
increase the working reach of the
air hose by attaching another length
of hose to its end. Attach additional
lengths of hose as needed.
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 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.
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 com-
pressor repeatedly causes interrup-
tion of the power, it may be necessary
to operate it from a 20 amp circuit. It
is not necessary to change the cord
set.
11-ENG A16751

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.
Pressure Tank Outlet
Switch Pressure
Gauge
On/Auto/Off
Switch
Safety Valve
Description of Operation
Become familiar with these controls
before operating the unit.
On/Auto/Off Switch: Turn this switch
ON to provide automatic power to the
pressure switch and OFF to remove
power at the end of each use.
Pressure Switch: The pressure switch
automatically starts the motor when
the air tank pressure drops below the
factory set "cut-in" pressure. It stops
the motor when the air tank pressure
reaches the factory set "cut-out" pres-
sure.
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 fac-
tory set pressure (slightly higher than
the pressure switch "cut-out" setting).
Outlet Pressure Gauge: The outlet
pressure gauge indicates the air pres-
sure 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 counter-
clockwise to decrease pressure. When
the desired pressure is reached push
knob in to lock in place.
Brain 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.
Drain
Valve
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.
A16751 12-ENG

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 compres-
sor is operating, the check valve is
"open", allowing compressed air to
enter the air tank. When the air com-
pressor reaches "cut-out" pressure,
the check valve "closes", allowing air
pressure to remain inside the air tank.
Pressure Release Valve: The pres-
sure release valve located on the side
of the pressure switch, isdesigned
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 the unit reaches "cut-out"
pressure.
Motor Overload Protector: The
motor has an automatic reset ther-
mal 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.
How to Use Your Unit
How to Stop:
1. Set the On/Auto/Off lever to
"OFF",
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 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: If quick connect is installed,
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
(counterclockwise) to permit air to
escape and prevent air pressure
build up in the air tank during the
break-in period.
NOTE: Always drain tank on a wash-
able surface or in a suitable con-
tainer to prevent damaging or staining
surfaces.
13-ENG A16751

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, 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.
Before Each Start-Up:
1. Place On/Auto/Off lever to "OFF".
2. Pull regulator knob out, turn
counterclockwise 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.
Risk of Bursting.
-- 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 com-
pressor 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.
A16751 14-ENG

Customer Responsibilities
Before Daily
or after Every Every
each each 40 100 Yearly
use use hours hours
Check Safety Valve •
Drain Tank •
Air Filter O(1) •
Air compressor pump intake
and exhaust valves •
1- more frequent in dusty or humid conditions
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.
To ensure efficient operation and lon-
ger life of the air compressor, a rou-
tine maintenance schedule should be
prepared and followed. The following
routine maintenance schedule is
geared to a unit in a normal working
environment operating on a daily ba-
sis. If necessary, the schedule should
be modified to suit the conditions
under which your compressor is used.
The modifications will depend upon
the hours of operation and the work-
ing environment. Compressor units in
an extremely dirty and/or hostile
environment will require a greater
frequency of all maintenance checks.
NOTE: See Operation section for the
location of controls.
To Check Safety Valve
Risk of Bursting.
If the safety valve
does not work properly, over-
pressurization may occur, causing
air tank rupture or an explosion.
1. Before starting compres-
sor, 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" and unplug unit.
2. Pull the regulator knob out and
turn counterclockwise 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.
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.
15-ENG A16751

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 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 and make
sure it is clean.
IMPORTANT: Do not operate the
compressor with the air filter re-
moved.
2. Ifdirty, rinse air filter with warm
water and squeeze dry.
3. Replace air filter.
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 Compressor Pump Intake
and Exhaust Valves
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
A16751 16-ENG

All maintenance and repair opera-
tions not listed must be performed
by Trained Service Technician.
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.
To Replace or Clean Check
Valve
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Set the On/Auto/Off lever to
"OFF" and unplug unit.
3. Using an adjustable wrench,
loosen outlet tube nut at air tank
and pump. Carefully move outlet
tube away from check valve.
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.
position
nothing is
visible,
In closed position
disc is visible.
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.
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.
17- ENG A16751

To Replace Regulator
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Set the On/Auto/Off lever to
"OFF" and unplug unit.
3. Remove the outlet pressure gauge
and quick connect (ifequipped)
from the regulator.
6. Assemble the regulator and
orient as shown.
NOTE: Arrow indicates flow of air.
Make sure it is pointing in the
direction of air flow.
4. Remove the regulator.
5. Apply pipe sealant tape to the
nipple. Reapply pipe sealant to outlet
pressure gauge and quick
connect.
Reassemble outlet pressure
gauge and quick connect. Orient
outlet pressure gauge to read
correctly. Tighten quick connect
with wrench.
A16751 18-ENG

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" and unplug unit.
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.
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 personal injury.
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, and
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)
9. Store the air compressor in a
clean and dry location.
19-ENG A16751

i / :_ollJ :] | _,_: [oIo] / h_[d
Risk of Unsafer Operation. Performing repairs may expose
voltage sources, moving parts, or compressed air sources.
Personal injury may occur. Before servicing: Unplug or disconnect electrical
supply to the air compressor, bleed tank of pressure, and allow the air
compressor to cool.
PROBLEM
Excessive tank
pressure - safety
valve pops off.
Air leaks at fit-
tings.
Air leaks at or
inside check
valve.
Air leaks at
pressure switch
release valve.
Air leaks in air
tank or at air
tank welds.
CAUSE
Pressure switch does not
shut off motor when
compressor reaches
"cut-out" pressure.
Pressure switch "cut-out"
too high.
Tube fittings are not tight
enough.
Check valve seat damaged.
Defective pressure switch
release valve.
Defective air tank.
Leaking seal.
Air leaks be-
tween head and
valve plate.
CORRECTION
Move On/Auto/Off lever to
the "OFF" position, if the unit
does not shut off contact a
Trained Service Technician.
Contact a Trained Service
Technician.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water so-
lution. Do Not Overtighten.
A defective check valve
results in a constant air leak
at the pressure release valve
when there is pressure in the
tank and the compressor
is shut off. Replace check
valve. Refer to the "To Re-
place or Clean Check Valve"
in the Service and Adjust-
ment section.
Contact a Trained Service
Technician.
Air tank must be replaced.
Do not repair the leak.
Risk of
-- Bursting.
Do not drill into, weld or
otherwise modify air tank or
it will weaken. The tank can
rupture or explode.
Contact a Trained Service
Technician.
A16751 20- ENG