Craftsman 919.165613 User manual
Permanently Lubricated
Twin V
2-Stage
Stationary
AIR COMPRESSOR
Model No.
919.165613
Owner’s Manual
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Rev. 0 04/14/08
2- ENG
N004083
TABLE OF CONTENTS
WARRANTY................................................2
SPECIFICATION CHART .....................................3
...........................3
........................ 3-8
................................................9
ACCESSORIES .............................................9
..............................................9
ASSEMBLY ...............................................10
INSTALLATION ......................................... 10-12
OPERATION ........................................... 13-15
MAINTENANCE......................................... 16-18
...............................18
................................................19
............................. 20-22
REPAIR PARTS ......................................... 24-27
.........................49
......................Back Cover
WARRANTY
If this CRAFTSMAN Air Compressor fails due to a defect in material or
workmanship within one year from the date of purchase, Sears will at
its option repair or replace it free of charge. Contact your nearest Sears
Service Center (1-800-4-MY-HOME®) to arrange for repair, or return the Air
Compressor to the place of purchase for replacement.
If this Air Compressor is used for commercial or rental purposes, this warranty
applies for only ninety days from the date of purchase.
This warranty gives you specific legal rights and you may have other rights
which vary from state to state.
3- ENG N004083
SPECIFICATION CHART
Model No. 919.165613
Running HP *2.9
Bore 2.375
Stroke-High Pressure .54"
Low Pressure 1.45"
Voltage-Single Phase 240/60/1
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity - Gallons 60
Approximate Cut-in Pressure 145
Approximate Cut-out Pressure 175
SCFM@ 40 psig *9.6
SCFM@ 90 psig *9.0
* Tested per ISO 1217
Refer to Glossary for abbreviations.
This manual contains information that is important for you to know and under-
stand. This information relates to protecting and
. To help you recognize this information, we use the
symbols below. Please read the manual and pay attention to these symbols.
Indicates an
imminently hazardous
situation which, if not avoided, will
result in .
Indicates a potentially
hazardous situation
which, if not avoided, may result in
Indicates a potentially
hazardous situation
which, if not avoided, could result in
Used without the
safety alert symbol
indicates a potentially hazardous
situation which, if not avoided, may result
in
To reduce the risk of injury, read the instruction manual .
4- ENG
N004083
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Itisnormalforelectricalcontacts
within the motor and pressure
switch to spark.
•Always operate the compressor
in a well ventilated area free of
combustible materials, gasoline, or
solvent vapors.
• Ifelectricalsparksfromcompressor
come into contact with flammable
vapors, they may ignite, causing fire
or explosion.
• Ifsprayingflammablematerials,locate
compressor at least 20 feet (6.1 m)
away from spray area. An additional
length of air hose may be required.
• Storeflammablematerialsinasecure
location away from compressor.
• Restrictinganyofthecompressor
ventilation openings will cause
serious overheating and could cause
fire.
• Neverplaceobjectsagainstoron
top of compressor.
• Operatecompressorinanopenarea
at least 12" (30.5 cm) away from
any wall or obstruction that would
restrict the flow of fresh air to the
ventilation openings.
• Operatecompressorinaclean,dry
well ventilated area. Do not operate
unit indoors or in any confined area.
Store unit indoors.
• Unattendedoperationofthis
product could result in personal
injury or property damage. To
reduce the risk of fire, do not
allow the compressor to operate
unattended.
• Alwaysremaininattendancewith
the product when it is operating.
• Disconnect electrical supply when
not in use.
WHAT CAN HAPPEN HOW TO PREVENT IT
• Thecompressedairdirectlyfrom
your compressor is not safe for
breathing. The air stream may
contain carbon monoxide, toxic
vapors, or solid particles from the air
tank. Breathing these contaminant's
can cause serious injury or death.
• Airobtaineddirectlyfromthe
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.
5- ENG N004083
• Exposuretochemicalsindustcreat-
ed by power sanding, sawing, grind-
ing, drilling, and other construction
activities may be harmful.
• Sprayedmaterialssuchaspaint,
paint solvents, paint remover, insec-
ticides, weed killers, may contain
harmful vapors and poisons.
• Workinanareawithgoodcross
ventilation. Read and follow the safe-
ty instructions provided on the label
or safety data sheets for the materi-
als you are spraying. Always use
certified safety equipment: NIOSH/
OSHA respiratory protection or prop-
erly fitting face mask designed for
use with your specific application.
The air tank on your Air Compressor is designed and may be UM
coded (for units with air tanks greater than 6 inch diameter) according to ASME
Section VIII, Div. 1 rules. All pressure vessels should be inspected once every
two years. To find your state pressure vessels inspector, look under the Division
of Labor and Industries in the government section of a phone book.
The following conditions could lead to a weakening of the air tank, and result in
a violent air tank explosion:
WHAT CAN HAPPEN HOW TO PREVENT IT
• Failuretoproperlydraincondensed
water from air tank, causing rust and
thinning of the steel air tank.
• Drainairtankdailyoraftereachuse.
If air tank develops a leak, replace it
immediately with a new air tank or
replace the entire compressor.
• Modificationsorattemptedrepairsto
the air tank. • Neverdrillinto,weld,ormakeany
modifications to the air tank or its
attachments. Never attempt to
repair a damaged or leaking air tank.
Replace with a new air tank.
• Unauthorizedmodificationstothe
safety valve or any other components
which control air tank pressure.
• Theairtankisdesignedtowithstand
specific operating pressures.
Never make adjustments or parts
substitutions to alter the factory set
operating pressures.
• Excessivevibrationcanweakenthe
air tank of a stationary compressor
and cause an explosion.
• Thecompressormustbeproperly
mounted, see "Anchoring" under
Installation.
• Exceedingthepressureratingof
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.
• Followtheequipmentmanufacturers
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.
6- ENG
N004083
RISK OF ELECTRICAL SHOCK
WHAT CAN HAPPEN HOW TO PREVENT IT
• Your air compressor is powered by
electricity. Like any other electrically
powered device, If it is not used
properly it may cause electric shock.
• Never operate the compressor
outdoors when it is raining or in wet
conditions.
• Never operate compressor with
protective covers removed or
damaged.
• Repairs attempted by unqualified
personnel can result in serious injury
or death by electrocution.
• 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.
• Failure to
provide adequate grounding to this
product could result in serious injury
or death from electrocution. Refer to
"Grounding Instructions" paragraph
in the Installation section.
• Make certain that the electrical circuit
to which the compressor is connected
provides proper electrical grounding,
correct voltage and adequate fuse
protection.
WHAT CAN HAPPEN HOW TO PREVENT IT
• Thecompressedairstreamcan
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.
• Alwayswearcertifiedsafety
equipment: ANSI Z87.1 eye
protection (CAN/CSA Z94.3)
with side shields when using the
compressor.
• Neverpointanynozzleorsprayer
toward any part of the body or at
other people or animals.
• Alwaysturnthecompressoroff
and bleed pressure from the air
hose and air tank before attempting
maintenance, attaching tools or
accessories.
7- ENG N004083
WHAT CAN HAPPEN HOW TO PREVENT IT
• Touchingexposedmetalsuchas
the compressor head, engine head,
engine exhaust or outlet tubes, can
result in serious burns.
• Nevertouchanyexposedmetal
parts on compressor during or
immediately after operation.
Compressor will remain hot for
several minutes after operation.
• Donotreacharoundprotective
shrouds or attempt maintenance
until unit has been allowed to cool.
WHAT CAN HAPPEN HOW TO PREVENT IT
• Movingpartssuchasthepulley,
flywheel, and belt can cause serious
injury if they come into contact with
you or your clothing.
• Neveroperatethecompressor
with guards or covers which are
damaged or removed.
• Keepyourhair,clothing,andgloves
away from moving parts. Loose
clothes, jewelry, or long hair can be
caught in moving parts.
• Airventsmaycovermovingparts
and should be avoided as well.
• Attemptingtooperatecompressor
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.
• Anyrepairsrequiredonthisproduct
should be performed by authorized
service center personnel.
8- ENG
N004083
WHAT CAN HAPPEN HOW TO PREVENT IT
• Unsafeoperationofyourair
compressor could lead to serious
injury or death to you or others.
• Reviewandunderstandall
instructions and warnings in this
manual.
• Becomefamiliarwiththeoperation
and controls of the air compressor.
• Keepoperatingareaclearofall
persons, pets, and obstacles.
• Keepchildrenawayfromtheair
compressor at all times.
• Donotoperatetheproductwhen
fatigued or under the influence of
alcohol or drugs. Stay alert at all
times.
• Neverdefeatthesafetyfeaturesof
this product.
• Equipareaofoperationwithafire
extinguisher.
• Donotoperatemachinewithmissing,
broken, or unauthorized parts.
WHAT CAN HAPPEN HOW TO PREVENT IT
• Seriousinjurycanresultfrom
attempting to lift too heavy an
object.
• Thecompressoristooheavyto
be lifted by one person. Obtain
assistance from others before lifting.
RISK FROM NOISE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Undersomeconditionsandduration
of use, noise from this product may
contribute to hearing loss.
• Alwayswearcertifiedsafetyequipment:
ANSI S12.6 (S3.19) hearing protection.
9- ENG N004083
GLOSSARY
ACCESSORIES
Become familiar with these terms
before operating the unit.
CFM: Cubic feet per minute.
Standard cubic feet per min-
ute; a unit of measure of air delivery.
Pounds per square inch
gauge; a unit of measure of pressure.
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.
Whilethemotor
is off, air tank pressure drops as
you continue to use your acces-
sory.Whenthetankpressuredrops
The accessories and tools are avail-
able through the current Power and
Hand Tool Catalog or full-line Sears
stores.
to a certain low level the motor will
restart automatically. The low pres-
sure at which the motor automatically
restarts is called "cut-in" pressure.
Whenanair
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 auto-
matically 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.
Circuit carrying elec-
tricity from electrical panel to outlet.
Place a lock on
the line power switch so no one else
can turn on the power.
DUTY CYCLE
This air compressor pump is capable
of running continuously. However,
to prolong the life of your air com-
pressor, it is recommended that a
50%-75% average duty cycle be
maintained; that is, the air compres-
sor pump should not run more than
30-45 minutes in any given hour.
Accessories
• InLineFilter
• TireAirChuck
• QuickConnectorSets(various
sizes)
• AirPressureRegulators
• OilFogLubricators
• AirHose:1/4",3/8"or1/2"I.D.in
various lengths
Refer to the selection chart located on
the unit to select the tools this unit is
capable of powering.
only accessories rated equal to
10- ENG
N004083
ASSEMBLY
1 - 9/16" socket or open end
wrench
1 - Electric drill
1. Remove all packaging.
-
2. Remove and discard the (4)
screws and washers holding the
compressor to the pallet.
3. Withthehelpofanotherperson
carefully remove air compressor
from pallet and place on a level
surface.
1 - Air Compressor
1 - Parts bag containing:
1 - Operator’s Manual
1 - Parts Manual
4- 5/8"Washers
• Locatetheaircompressorina
clean, dry, and well ventilated
area.
• Locatedtheaircompressorat
least 12" (30.5 cm) away from the
wall or other obstructions that will
interfere with the flow of air.
• Locatetheaircompressoras
close to the main power sup-
ply as possible to avoid using
long lengths of electrical wiring.
Long lengths of electrical
wiring could cause power loss to
the motor.
• Theairfiltermustbekeptclearof
obstructions which could reduce
air flow to the air compressor.
The air compressor MUST be bolted to
a solid, level surface.
Hardware needed:
4 - Concrete anchors
(not supplied)
4 - 3/8" Lag screw to fit concrete
anchors
(not supplied)
4- 5/8"Washer(supplied)
shims (if needed)
1. Place the air compressor on a
solid, level surface.
2. Mark the surface using the holes
in the air compressor feet as a
template.
3. Drill holes in the surface for the
concrete anchors. Install concrete
anchors.
4. Line-up holes in surface with holes
in air compressor feet.
5. Place the (4) washers (supplied)
between the floor and air com-
pressor feet. If needed, solid
shims may be placed between the
washers and floor to evenly dis-
tribute weight on all four feet. See
next figure.
INSTALLATION
11- ENG N004083
Screw
6. Place the (4) 3/8" lag screws
through the air compressor feet,
washers, shims, and into the
anchors.
7. Torque 3/8" lag screws to
7 - 10 ft. lbs.
Wiring Instructions
Improper electrical
installation of this
product may void its warranty and
your fire insurance. Have circuit wiring
performed by qualified personnel
such as a licensed electricians who
is familiar with the current national
electrical code and any prevailing local
electrical codes. Une mauvaise
connexion électrique de ce produit
pourrait annuler la garantie et votre
assurance contre les incendies.
A qualified electrician needs to knows
the following before wiring:
1. The amperage rating of the electri-
cal box should be adequate. Refer
to the Specification Chart for this
information.
2. The supply line should have the
same electrical characteristics
(voltage, cycle, phase) as the
motor. Refer to the motor name-
plate, on side of motor, for this
information.
The wiring must be the same
as the motor nameplate voltage plus
or minus 10%. Refer to local codes for
recommended wire sizes, correct wire
size, and maximum wire run; undersize
wire causes high amp draw and over-
heating to the motor.
This product should be connected to
a metallic, permanent wiring system,
of an equipment-grounding terminal
or lead on the product.
Voltage and Circuit Protection
Refer to the specification chart for the
voltage and minimum branch circuit
requirements.
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. If compressor
is connected to a circuit protect-
ed 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 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.
Plastic or PVC
distribution lines.
12- ENG
N004083
DRAIN
TRAP
DRAIN
TRAPS
DRAIN
LEGS
MOISTURE
SEPARATOR
AND TRAP
DIRT
LEG
DIRT
LEG
LUBRICATOR
REGULATOR
FILTER
AIR DISCHARGE
VA LV E
LUBRICATOR
MAIN DISTRIBUTION AIR LINES
Slope pipe in direction of air flow.
Water condensate flows along
bottom of pipe to drain legs,
preventing it from entering feeder
lines.
REGULATOR
FLEXIBLE
COUPLING
DRAIN COCK
VA LV E
TYPICAL COMPRESSED
AIR DISTRIBUTION SYSTEM
AIR FLOW AIR FLOW
FEEDER LINES SLOPE
WITH AIR FLOW
AIR USAGE
LINES
AIR
COMPRESSOR
The next figure represents a typical
air distribution system. The following
are tips to remember when setting up
the air compressor’s air distribution
system.
•Use pipe that is the same size as
the air tank outlet. Piping that is
too small will restrict the flow of
air.
•If piping is over 100 feet (30.5 m)
long, use the next larger size.
•Bury underground lines below
the frost line and avoid pockets
where condensation can gather
and freeze. Apply pressure before
underground lines are covered to
make sure all pipe joints are free
of leaks.
•A flexible coupling is recommend-
ed to be installed between the air
discharge outlet and main air dis-
tribution line to allow for vibration.
•A separate regulator is recom-
mended to control the air pres-
sure. Air pressure from the tank
is usually to high for individual air
driven tools.
13- ENG N004083
The drain valve is locat-
ed at the base of the air tank and is
used to drain condensation at the
end of each use.
: 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.
Compresses air into the air tank.
Workingairisnotavailableuntilthe
compressor has raised the air tank
pressure above that required at the
air outlet.
Whentheaircompres-
sor is operating, the check valve is
"open", allowing compressed air to
entertheairtank.Whentheaircom-
pressor reaches "cut-out" pressure,
the check valve "closes", allowing air
pressure to remain inside the air tank.
Pressure
Release
Become familiar with these controls
before operating the unit.
Tank
Pressure
Pressure
: Turn this
switch "On/Auto(I)" to provide auto-
matic power to the pressure switch and
"Off(O)" to remove power at the end of
each use.
The pressure
switch automatically starts the motor
when the air tank pressure drops
below the factory set "cut-in" pres-
sure. It stops the motor when the air
tank pressure reaches the factory set
"cut-out" pressure.
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).
The tank
pressure gauge indicates the reserve
air pressure in the tank.
Opens and closes air
discharge valve. Turn knob counter-
clockwise to open and clockwise to
close.
OPERATION
READTHISOWNER’SMANUALANDSAFETYRULESBEFOREOPERATING
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.
14- ENG
N004083
The
pressure release valve, located on
the side of the pressure switch, is
designed to automatically release
compressed air from the compres-
sor 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
restartfreely.Whenthemotorstops
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.
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.
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.
1. Set the On/Auto/Off lever to "Off".
unit until you read
maintenance instructions.
Break-in Procedure
break-in instructions are not
This procedure is required 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.
2.
Recheck all wiring. Make sure
wires are secure at all terminals
connections. Make sure all con-
tacts move freely and are not
obstructed.
3. Open the globe valve fully to per-
mit 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 compres-
sor will start.
5. Run the compressor for 15 min-
utes. Make sure the globe valve
is open and there is minimal air
pressure build-up in tank.
6. Check all air line fittings and con-
nections/piping for air leaks by
applying a soap solution. Correct
if necessary. Minor leaks
can cause the air compressor to
overwork, resulting in premature
breakdown or inadequate perfor-
mance.
7. Check for excessive vibration.
Readjust or shim air compressor
feet, if necessary.
8. After 15 minutes, close the globe
valve. The air receiver will fill to
"cut-out" pressure and the motor
will stop.
1. Place On/Auto/Off lever to "Off".
2. Close the globe valve.
3. Attach hose and accessories.
A regulator MUST be
installed when using accessories
rated at less than 175 psi.
Firmly
installing or disconnecting to
use damaged or worn accessories.
15- ENG N004083
The hose or accessory will
require a quick connect plug if the air
outlet is equipped with a quick con-
nect socket.
d
the maximum pressure rating.
contain water condensation and
by moisture. Some air tools and
tools and accessories.
How to Start
1. Turn the On/Auto/Off lever to "On/
Auto" and allow tank pressure to
build. Motor will stop when tank
pressure reaches "cut-out" pres-
sure.
2. Whenthetankpressurereaches
"cut-out" pressure open the globe
valve.
Whenusingregula-
tor and other accessories refer to the
manufacturers instructions.
The compressor is ready for use.
16- ENG
N004083
MAINTENANCE
Before
each use Daily or after
each use Every 40 hours Yearly
Check Safety Valve X
Drain Tank X
Air Filter X1
Air compressor pump
intake and exhaust
valves
X
Inspect air lines and
fittings for leaks X
1- more frequent in dusty or humid conditions
To ensure efficient operation and lon-
ger life of the air compressor, a routine
maintenance schedule should be pre-
pared and followed. The above routine
maintenance schedule is geared to an
air compressor in a normal working
environment operating on a daily basis.
If necessary, the schedule should be
modified to suit the conditions under
which your air compressor is used.
The modifications will depend upon
the hours of operation and the work-
ing environment. Compressors in an
extremely dirty and/or hostile environ-
ment will require a greater frequency of
all maintenance checks.
See Operation section for the
location of controls.
TO CHECK SAFETY VALVE
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.
ANSI S12.6
Operation of the air compres-
sor will cause condensation to build up
in the air tank. Always drain tank on a
washable surface or in a suitable con-
tainer to prevent damaging or staining
surfaces.
1. Set the On/Auto/Off lever to "Off".
2. Close the globe valve.
3. Remove the air tool or accessory.
17- ENG N004083
Air Filter
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.
If the air filter is extremely
dirty it will need to be replaced. Refer
to the Repair Parts for the correct part
number.
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
1. Turn the air compressor on to
inspect for air leaks.
2. Apply a soap solution to all air
line fittings and connections/
piping.
3. Correct any leaks found.
Even minor leaks can
cause the air compressor to over-
work, resulting in premature break-
down or inadequate performance.
4. Open the globe valve and allow
the air to slowly bleed from the
air tank until tank pressure is
approximately 20 psi.
5. Close the globe valve.
6. Drain water from air tank by
opening drain valve on bottom of
tank.
Water will condense
7. After the water has been drained,
close the drain valve. The air
compressor can now be stored.
If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, then
reinstalled.
A dirty air filter will not allow the
compressor to operate at full capacity.
Keeptheairfiltercleanatalltimes.
1. Remove the air filter cover.
2. Remove the air filter and make
sure it is clean.
18- ENG
N004083
SERVICE AND ADJUSTMENTS
1. Release all air pressure from air
tank. See in the
Maintenance section.
2. Set the On/Auto/Off lever to "Off"
and disconnect electrical supply
3. Using a phillips screwdriver
remove the air filter cover.
SERVICE TECHNICIAN.
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 pres-
sure relief tube away from check
valve.
Outlet Tube
Nut
Nut
Pressure
Tube
7. Unscrew the check valve (turn
counterclockwise) using a 7/8"
open end wrench. Note the ori-
entation for reassembly.
19- ENG N004083
8. Using a screwdriver, care-
fully push the valve disc up and
down. 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.
STORAGE
Before you store the air compressor,
make sure you do the following:
1. Review the Maintenance section
on the preceding pages and per-
form scheduled maintenance as
necessary.
2. Set the On/Auto/Off lever to "Off"
and disconnect electrical supply
3. Close the globe valve.
4. Remove the air tool or accessory.
5. Open the globe valve and allow
the air to slowly bleed from the
air tank until tank pressure is
approximately 20 psi.
6. Drain water from air tank by
opening drain valve (counter-
clockwise) on bottom of tank.
Water will
drained, water will corrode and
7. After the water has been drained,
close the drain or drain valve.
If drain valve is plugged,
release all air pressure. The valve
can then be removed, cleaned, then
reinstalled.
8. Protect the air hose from dam-
age (such as being stepped on
or run over).
9. Clean or replace the check valve.
A solvent, such as paint or var-
nish 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 tight-
en nut.
13. Replace the shroud and air filter.
14. Perform the Break-in Procedure.
See Break-in Procedure in the
Operation section.
20- ENG
N004083
TROUBLESHOOTING
PROBLEM CORRECTION
Pressure switch does
not shut off motor when
compressor reaches "cut-
out" pressure.
Pressure switch "cut-out"
too high.
Move On/Auto/Off lever to
the "Off" position, if the unit
does not shut off contact a
Trained Service Technician.
Contact a Trained Service
Technician.
Excessive tank
pressure - safety
valve pops off.
Tube fittings are not tight
enough.
Tighten fittings where air
can be heard escaping.
Check fittings with soapy
water solution.
Air leaks at
fittings.
Air leaks at
pressure switch
release valve.
Defective pressure switch
release valve.
Contact a Trained Service
Technician.
Air leaks in air
tank or at air
tank welds.
Defective air tank. Air tank must be replaced.
Do not repair the leak.
Bursting.
Air leaks
between head
and valve plate.
Leaking seal.
Air leaks at or
inside check
valve
Check valve seat damaged. 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 the
in
the Service and Adjustment
section.
Contact a Trained Service
Technician.
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