Craftsman 919.165520 User manual

Owner's Manual
JCRRFTSMRN1
Permanently Lubricated
Single Stage
Portable
AIR COMPRESSOR
Model No.
919.165520
• Safety Guidelines
• Assembly
• Operation
• Maintenance
• Service and Adjustments
• Troubleshooting
•Repair Parts
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.eears.com/craftsman
D27221 Revl 9/23/02

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WARRANTY ............................................. 2
SPECIFICATION CHART .................................... 3
SAFETY GUIDELINES .................................... 3-8
GLOSSARY .............................................. 9
ACCESSORIES .......................................... 9
DUTY CYCLE ............................................ 9
ASSEMBLY ............................................. 1g
INSTALLATION ........................................ f1-12
OPERATION .......................................... f3-15
MAINTENANCE ....................................... f6-17
SERVICE AND ADJUSTMENTS ........................... f8-19
STORAGE .............................................. 20
TROUBLESHOOTING GUIDE ............................ 21-23
REPAIR PARTS ....................................... 24-27
ESPAI_IOL ............................................ 28-49
NOTES/NOTAS ....................................... 50-51
HOW TO ORDER REPAIR PARTS ..................... back cever
FULL ONE YEAR WARRANTY AIR COMPRESSOR
If this air cempresser fails due te a defect in material er workmanship within
one year from the date of purchase, RETURN IT TO THE NEAREST SEARS
REPAIR CENTER THROUGHOUT THE UNITED STATES AND SEARS WILL
REPAIR IT, FREE OF CHARGE. If purchased from Orchard Supply Hardware,
return to the nearest Orchard Store and Orchard will repair it, free of charge.
If this air compressor is used fer commercial er rental purposes, the warranty
will apply for ninety days from the date of purchase.
This warranty gives yeu specific legal rights and yeu may have other rights
which vary from state to state.
Sears, Rebebuck and Ce., Dept. 817WA, Hoffman Estates, II 60179
D27221 2* ENG

Model No. 919-165520
Max. Developed BP 6
Bore 2.375"
Stroke 1.35"
Voltage-Single Phase 120V/60Hz
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 33
Approx. Cut-In 120
Approx. Cut-out 150
SCFM @40 psig 8.6
SCFM @ 90 psig 6.4
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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 symbols.
_lndicates an
imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
_lndicates a
potentially
hazardous situation which, if not
avoided, could result in death or
serious injury,
_lndicates 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 DroDertv damaae.
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.
3* ENG D27221

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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.
;f.+1,J.+1;1n
WARNING: Risk of explosion or fire
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.
How To Prevent It
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.
D2722t 4* ENG

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.
1.
2*
3.
What Could Happen
Failure to properly drain
condensed water from tank,
causing rust and thinning of the
steel tank.
HOw To Prevent It
Drain tank daily or after each use. If
tank develops a leak, replace it
immediately 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
Never drill into, weld, or make any
modifications to the tank or its
attachments.
4. The tank is designed to withstand specific
operating pressures. Never make
adjustments or parts substitutions to
alter the factory set operating
pressures.
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.
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.
;r.,_'#.,1"1=
WARNING: Risk from Flying Objects
WHATCAN 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 D27221

WARNING: Risk of Electrical Shock
WHAT CAN 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
elect rical codes.
Make certain that the electrical circuit
to which the compressor is connected
provides proper electrical grounding,
correct voltage and adequate fuse
protection,
,I;1"1'.I;1=
WARNING: Risk to Breathing
WHAT CAN 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 vapors
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
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 NtOSH/MSHA
approved respirator designed for use
with your specific application.
D27221 6* ENG

,l:_'l'J : ll
WARNING: RISK OF BURNS
WHAT CAN 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.
,l;_'l'J ll=
WARNING: RISK FROM MOVING PARTS
WHAT CAN HAPPEN
Moving parts such as the pulley, flywheel,
and belt can cause serious injury if they
come into contact with you or your
clothing.
Attempting to operate compressor with
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
Never operate the compressor with
guards or covers which are damaged or
removed.
Any repairs required on this product
should be performed by authorized
service center personnel.
WARNING: RISK OF SERIOUS INJURY OR PROPERTY
DAMAGE WHEN TRANSPORTING COMPRESSOR
(Fire, Inhalation, Damage to Vehicle Surfaces)
WHAT CAN 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.
7÷ ENG D27221

WARNING: RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN
Unsafe operation of your air compressor
could lead to serious injury or death to
you or others.
HOW TO PREVENT IT
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,
3ets, and obstacles.
Keep children away from the air
compressor st 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 ssfety features of this
3roduct.
Equip ares of operation with a fire
extinguisher.
DO not operate machine with missing,
broken, or unauthorized parts.
D27221 8* ENG

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 • Oil Fog Lubricators
• In Line Filter • Air Hose: 1/4", 3/8" or 1/2" LD. in
• Tire Air Chuck various lengths
•Quick Connector Sets (various Refer to the selection chart located
sizes) on the unit to select the tools this unit
•Air Pressure Regulators is capable of powering.
ml_Tujnj_[e,_ q:4
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.
9-ENG D27221

Contents of Carton
1 - Air Compressor
1- Handle
1 - Grip Handle
1 - Hose Wrap
2 - SelfTapping Screw 1/4_20x 1.25
2- Wheels
2 - Shoulder Bolts, 3/8-16
2 - Hex Nuts, 3/8-16
1 - Rubber Strip
Tools Required for Assembly
1 - 9/16" socket or open end wrench
1 - 1/2" socket or open end wrench
1 - 3/8" socket or standard
screwdriver
Unpacking
1. Remove unit from carton and
discard all packaging. NOTE:
Save all parts bags.
Assemble HandJe and Hose Wrap
1. To make installation easier,
submerge handle grip into warm
soapy water. Remove handle
grip from soapy water and slide
onto handle.
2. Insert the handle inside the
compressor saddle.
3. Line up the two bolt holes in
saddle with handle and hose
wrap as shown.
4. Installthe longer self tapping
screws, supplied with the hose
wrap through hose wrap, saddle,
and handle.
5. Installthe shorter self tapping
screws through the saddle and
handle on the other side.
6. Tighten all screws securely. Be
sure not to over-tighten.
DQ NOT use
hose wrap as a
handle to push, pull, or lift air
compressor.
D27221
Hose
Screws \
(long)
Handle Grip
2.
10- ENG
Wheel
Bolt Screws
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.
Assemble Wheels
It will be
necessary to
brace or support one side of the
outfit when installing the wheels
because the compressor will have
atendency to tip.
1. Attach wheels with shoulder
bolts and nuts as shown. NOTE:
Place the bolts in the bottom
hole of the wheel bracket on
units 20-29 gallons and in the
top hole on units 30 gallons and
up.
2. Tighten securely. NOTE: The
outfit will sit level if the wheels
are properly installed.
Assemble Rubber Feet
1. Attach rubber
feet with the
screws,
washers and
nuts provided
as shown.
Tighten
securely.

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 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.
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.
_ _lug _Grounded
__Outlets
Grou_d_ing Pin
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.
I_11 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.
11_ ENG D27221

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.
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 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.
D27221 12-ENG

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 manua[for future
reference.
Description of Operation
Become familiar with these controls
before operating the unit.
On/Auto/Off Switch: Turn this
switch ON to provide automatic
power to the pressure switch and
OFF to remove power at the end of
each use.
Pressure Switch: The pressure
switch automatically starts the
motor when the air tank pressure
drops below the factory set "cut-in"
pressure. It stops the motor when
the air tank pressure reaches the
factory set "cut-out" pressure.
Safety Valve: If the pressure switch
does not shut off the air compressor
at its "cut-out" pressure setting, the
safety valve will protect against high
pressure by "popping out" at its
factory set pressure (slightly higher
than the pressure switch "cut-out"
setting).
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 ARC. One
hand push-to-connect operation
makes connections simple and easy.
Drain Valve:
The drain valve
is located at
the base of the
air tank and is Valve
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.
13_ ENG D27221

Air Compressor Pump (not
shown): Compresses air into the
air tank. Working air is not available
until the compressor has raised the
air tank pressure above that
required at the air outlet.
Check Valve: When the air
compressor
is operating,
the check
valve is
"open"_
allowing
compressed
air to enter
the air tank.
When the air
compressor reaches "cut-out"
pressure, the check valve '*closes'*,
allowing air pressure to remain
inside the air tank.
Pressure Release Valve: The
pressure release valve, located on the
side of the pressure switch, is
designed to automatically release
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.
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".
Motor Overload Protector: 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.
Hose Wrap:
Conveniently
stores up to 50
feet of air hose.
How to Use Your Unit
How toStop:
1. Set the On/Auto/Off lever to
"OFF".
Before First Start Up:
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.)
D27221 14_ ENG

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.
NOTE: Always drain tank on a
washable surface or in a suitable
container to prevent damaging or
staining surfaces.
4.
5.
Move the On/Auto/Off lever to
"ON/AUTO" position. The
compressor will start.
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
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.
_'_J_'_ 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.
15_ENG D27221

Customer Responsibilities
Before Daily ol
after Every Every
aach each 40 100 Yearly
use use hours _ours
Check Safety Valve •
Drain Tank •
Air Filter •(1) •
Air compressor pump intake
and exhaust valves •
1- more frequent in dusty or humid conditions
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 ensure efficient operation and
longer life of the air compressor
outfit, a routine maintenance
schedule should be prepared and
followed. The following routine
maintenance schedule is geared to
an outfit in a normal working
environment operating on a daily
basis. If necessary, the schedule
should be modified to suit the
conditions under which your
compressor is used. The
modifications will depend upon the
hours of operation and the working
environment. Compressor outfits 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
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 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.
II_Water will
condense in the air
tank. If not drained, water will
corrode and weaken the air tank.
D27221 16_ENG

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.
Air Filter Inspection and
Replacement
Hot surfaces. Risk
of burn.
Compressor heads are exposed
when filter cover is removed.
Allow compressor to cool prior to
servicing.
A dirty air filter will not allow the
compressor to operate at full
capacity. Keep the air filter clean at
all times.
1. Remove the air filter and make
sure it is clean.
2. If dirty, rinse air filter with warm
water and squeeze dry.
3. Replace air filter.
4. Replace 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 Compressor Pump Intake
and Exhaust Valves
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
IMPORTANT: DO not operate the
compressor with the air filter
removed.
17_ ENG D27221

_'l_jl_ 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.
_Before servicing: 7.
•Unplug or disconnect electrical
supply to the air compressor.
•Bleed tank of pressure. 8.
•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. Unplug air compressor.
3. Remove the regulator ring and
remove the console cover.
4.
5. Remove shrouds.
Using an adjustable wrench
loosen outlet tube nut at air tank
and pump. Carefully move outlet
tube up away from check valve.
6. Using an adjustable wrench
loosen pressure relief tube nut at
air tank and pressure switch.
Carefully move pressure relief
tube away from check valve.
Unscrew the check valve (turn
counterclockwise) using a 7/8"
open end wrench. Note the
orientation for reassembly.
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.
g. Clean or replace the check valve.
A solvent, such as paint or
varnish remover can be used to
clean the check valve.
10. Apply sealant to the check valve
threads. Reinstall the check valve
(turn clockwise).
11. Replace the pressure release
tube. Tighten nuts.
D27221 18_ENG

12. Replace the outlet tube and
tighten nuts.
13. Replace shrouds and console.
14. Perform the Break-in Procedure.
See "Break-in Procedure" in the
Operation section.
To Replace Regulator
1. Release all air pressure from air
tank. See "To Drain Tank" in the
Maintenance section.
2. Unplug air comrpessor.
3. Remove the regulator ring and
remove the console cover.
gauge and quick connect.
Regulator
Ring
4.
5.
Using an adjustable wrench
loosen pressure relief tube nut at
air tank and pressure switch.
Using an adjustable wrench,
rotate the pressure switch
assembly as shown.
6. Remove the outlet pressure
gauge, tank pressure gauge, and
quick connect (if equipped) from
the regulator.
7. Remove the regulator.
8. Apply pipe sealant tape to the
nipple.
9. Assemble the regulator and
orient as shown.
NOTE: Arrow indicates flow of air.
Make sure it is pointing in the
direction of air flow.
10.
11.
Reapply pipe sealant to outlet
pressure gauge, tank pressure
gauge, and quick connect.
Reassemble outlet pressure
gauge, tank pressure gauge, and
quick connect. Orient outlet
pressure gauge and tank
pressure gauge to read correctly.
Tighten quick connect with
wrench.
12. Rotate pressure switch assemble
into correct position.
13. Replace console cover and
regulator ring.
19_ ENG D27221

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. Removethe 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. To protect the electrical cord
from damage wind electrical cord
loosely around the compressor
handle.
9. Wind air hose around hose wrap
and secure in place.
Store the air compressor in a clean
and dry location.
D27221 20-ENG