Craftsman 919.184193 User manual
Owner’s Manual
Oil Lube
Single Stage
Vertical Stationary
AIR COMPRESSOR
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Rev. 0 10/01/09
2-ENG
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ACCESSORIES .............................................9
...............................................10
......................................... 10-12
........................................... 13-15
......................................... 16-19
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ESPAÑOL.............................................. 30-53
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......................back cover
Running Horsepower 3.0 *
Voltage-Single Phase 240V
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 60 Gallons (227 liters)
Approximate Cut-in Pressure 120 psig
Approximate Cut-out Pressure 150 psig
SCFM @ 40 psig 12.2
SCFM @ 90 psig 10.1
* Tested per ISO 1217
Refer to Glossary for abbreviations.
If this Craftsman product fails due to a defect in material or workmanship within
one year from the date of purchase, call 1-800-4-MY-HOME to arrange for free
repair (or replacement if repair proves impossible).
This warranty applies for only 90 days from the date of purchase if this product
is ever used for commercial or rental purposes.
This warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
3-ENG
This manual contains information that is important for you to know and
understand. 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, result in
Indicates a potentially
hazardous situation
which, if not avoided, result in
Indicates a practice not
which, if not avoided, result
in p
This product contains chemicals known to the State of
California to cause cancer, and birth defects or other
reproductive harmWash hands after handling
Some dust contains chemicals known to the State of California
to cause cancer, birth defects or other reproductive harm such
as asbestos and lead in lead based paint.
To reduce the risk of injury, read the instruction manual.
• 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.
4-ENG
• 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.
• Unattendedoperationofthisproduct
could result in personal injury or
property damage. To reduce the risk
of fire, do not allow the compressor
to operate unattended.
• Alwaysremaininattendancewiththe
product when it is operating.
• Disconnect electrical supply when
not in use.
• 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 contami-
nants can cause serious injury or
death.
• Neveruseairobtaineddirectly
from the compressor to supply air
for human consumption. The com-
pressor is not equipped with suit-
able filters and in-line safety equip-
ment for human consumption.
• Exposuretochemicalsindustcre-
ated by power sanding, sawing,
grinding, drilling, and other con-
struction activities may be harmful.
• Sprayedmaterialssuchaspaint,
paint solvents, paint remover,
insecticides, weed killers, may
contain harmful vapors and poi-
sons.
• Workinanareawithgoodcross
ventilation. Read and follow the
safety instructions provided on the
label or safety data sheets for the
materials you are spraying. Always
use certified safety equipment:
NIOSH/OSHA respiratory protec-
tion or properly fitting face mask
designed for use with your specific
application.
5-ENG
OnFebruary26,2002,theU.S.ConsumerProductSafetyCommission
published Release # 02-108 concerning air compressor tank safety:
Air compressor receiver tanks do not have an infinite life. Tank life is dependent
upon several factors, some of which include operating conditions, ambient con-
ditions, proper installations, field modifications, and the level of maintenance.
The exact effect of these factors on air receiver life is difficult to predict.
If proper maintenance procedures are not followed, internal corrosion to the
inner wall of the air receiver tank can cause the air tank to unexpectedly rupture
allowing pressurized air to suddenly and forcefully escape, posing risk of injury to
consumers.
Your compressor air tank must be removed from service by the end of the year
shown on your tank warning label.
The following conditions could lead to a weakening of the air tank, and result in a
violent air tank explosion:
• 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 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
• Over inflation of tires could result in
serious injury and property damage. • Useatirepressuregaugetocheck
the tires pressure before each use
and while inflating tires; see the tire
sidewall for the correct tire pressure.
Air tanks, compressors and
similar equipment used to inflate tires
can fill small tires very rapidly. Adjust
pressure regulator on air supply to
no more than the rating of the tire
pressure. Add air in small increments
and frequently use the tire gauge to
prevent over inflation.
• 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
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.
• and could
result in fire or breathing hazard;
serious injury or death can result. oil
leaks will damage carpet, paint or
other surfaces in vehicles or trailers.
• Always
to protect against damage to vehicle
from leaks. Remove compressor
from vehicle immediately upon arrival
at your destination.
7-ENG
• 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.
• 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.
• Movingpartssuchasthepulley,
flywheel, and belt can cause serious
injury if they come into contact with
you or your clothing.
• Neveroperatethecompressorwith
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
• Unsafeoperationofyourair
compressor could lead to serious
injury or death to you or others.
• Reviewandunderstandallinstructions
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.
• Seriousinjurycanresultfrom
attempting to lift too heavy an
object.
• Thecompressoristooheavyto
be lifted by one person. Obtain
assistance from others before lifting.
• Undersomeconditionsandduration
of use, noise from this product may
contribute to hearing loss.
• Alwayswearcertifiedsafetyequipment:
ANSI S12.6 (S3.19) hearing protection.
9-ENG
Become familiar with these terms
before operating the unit.
: 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 Standards for
Safety.
*UL®is a registered trademark of
Underwriters Laboratories and ETL®
is a registered trademark of Electrical
Testing Laboratories.
Whilethemotoris
off, air tank pressure drops as you
continuetouseyouraccessory.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.
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.
This air compressor pump is capable
of running continuously. However, to
prolong the life of your air compressor,
it is recommended that a 50%-75%
average duty cycle be maintained; that
is, the air compressor pump should
not run more than 30-45 minutes in
any given hour.
ACCESSORIES
This unit is capable of powering the following Accessories. The accessories are
available through the current Power and Hand Tool Catalog or full-line Sears
stores.
Accessories
• InLineFilter
• TireAirChuck
• QuickConnectorSets(various
sizes)
• AirPressureRegulators
• OilFogLubricators
• AirHose:1/4"(6.4mm),3/8"
(9.5 mm) or 1/2" (12.7 mm) I.D. in
various lengths
Refer to the selection chart located on
the unit to select the tools this unit is
capable of powering.
10-ENG
The air compressor MUST be bolted
to a level, solid concrete surface. Use
3/8" lag screws, washers and concrete
anchors. If help is needed anchoring
the air compressor consult a licensed
contractor.
1. Place the air compressor on a
level, solid concrete surface.
Make sure the concrete is in
good condition with no cracks or
damage.
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 washers (supplied)
between the floor and air
compressor feet, see figure. If
needed use shims to level the unit.
Screw
1 - 9/16" socket or open end wrench
1 - Electric drill
1. Remove all packaging.
It may be necessary
to brace or support
one side of the outfit when removing
the pallet because the air compressor
will have a tendency to tip.
• 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 supply
as possible to avoid using long
lengths of electrical wiring.
Long lengths of electri-
cal wiring could cause power
loss to the motor.
• Theairfiltermustbekeptclear
of obstructions which could
reduce air flow to the air com-
pressor.
2. Remove and discard the screws
and washers holding the com-
pressor to the pallet.
3. Withthehelpofanotherperson
carefully remove air compressor
from pallet and place on a level
surface.
Risk of property dam-
age. This compres-
sor was shipped with oil in the pump
crankcase. Check oil before operating
air compressor, seeunder
Maintenance.
11-ENG
6. Place the 3/8" lag screws through
the air compressor feet, washers
and into the anchors.
7. Torque 3/8" lag screws to 7-10 ft.-
lbs (9.5-13.5 Nm).
Wiring Instructions
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 used must be rated
for 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.
Refer to the specification chart for the
voltage and minimum branch circuit
requirements.
Plastic or PVC
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.
Compressed air from oil lube
air compressors will contain water
condensation and oil mist. Several
drains, traps and filters will be needed
to supply air without water (including
aerosols) or oil to spray equipment, air
tools and accessories requiring filtered
air. Always read the instructions for the
air tools and accessories being used.
• Usepipethatisthesamesizeas
the air tank outlet. Piping that is
too small will restrict the flow of
air.
• Ifpipingisover100'(30.5m)long,
usethenextlargersize.
• Buryundergroundlinesbelow
the frost line and avoid pockets
where condensation can gather
andfreeze.Applypressurebefore
underground lines are covered to
make sure all pipe joints are free
of leaks.
• Aflexiblecouplingis
recommended to be installed
between the globe valve/air
discharge outlet and main air
distribution line to allow for
vibration.
• Aseparateregulatoris
recommended to control the
air pressure. Air pressure from
the tank is usually too high for
individual air driven tools.
• DONOTinstalllubricators
between the tank and any spray
equipment, air tool or accessory
requiring oil-free filtered air.
• Drainalltraps,filtersanddirtlegs
daily.
12-ENG
SPRAY
GUN
AIR
TOOL
DRAIN
LEGS
FILTER /
MOISTURE
TRAP
DIRT
LEGS
DRAIN
VALVES
DRAIN
VALVE
LUBRICATOR
REGULATOR
GLOBE VALVE /
AIR DISCHARGE
VALVE
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
BALL
FILTER
FLEXIBLE
COUPLING
DRAIN
VALVE
TYPICAL
COMPRESSED AIR
DISTRIBUTION
SYSTEM
AIR FLOW AIR FLOW
FEEDER LINES SLOPE
WITH AIR FLOW
AIR USAGE
LINES
AIR
COMPRESSOR
FILTER /
MOISTURE
TRAP
FOR BEST PERFORMANCE
the distance between the
compressor and the
moisture trap should be as
long as possible
RISK OF BURSTING. ALWAYS USE
METAL PIPING AND FITTINGS.
DRAIN
VALVES
5 MICRON
FILTER
.01 MICRON
FILTER
13-ENG
Become familiar with these controls
before operating the unit.
: Turn this switch
"Auto(I)" to provide automatic 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" pressure. It stops
the motor when the air tank pressure
reaches the factory set "cut-out" pres-
sure.
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.
Opensandcloses
air distribution from compressor. See
paragraph
under Installation.
READTHISOWNER’SMANUALANDSAFETYRULESBEFOREOPERATING
YOURUNIT.Comparetheillustrationswithyourunittofamiliarizeyourselfwith
the location of various controls and adjustments. Save this manual for future ref-
erence.
Pressure
Pressure
: An air pressure regulator or a
separate air transformer which com-
bines the functions of air regulation
and/or moisture and dirt removal is
recommended for most applications.
See para-
graph under Installation
: 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.
14-ENG
The drain valve is located
at the base of the air tank and is used
to drain condensation at the end of
each use.
Whentheair
compressor is
operating, the
check valve is
"open", allowing
compressed air
to enter the air
tank.Whenthe
air compressor
reaches "cut-
out" pressure, the check valve "clos-
es", allowing air pressure to remain
inside the air tank.
The pres-
sure 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
themotortorestartfreely.Whenthe
motor stops running, air will be heard
escaping from this valve for a few sec-
onds. No air should be heard leaking
when the motor is running or after the
unit reaches "cut-out" pressure.
Pressure
Release
Reset
This
motor has a manual 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. To restart:
1. Place the Auto/Off lever in the
"Off" position.
2. Allow the motor to cool.
3. Depress the red reset button on
the motor.
4. Place the Auto/Off lever in the
"Auto" postion to restart the
motor.
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.
Set the Auto/Off lever to "Off".
Risk of property
damage. Serious
damage may result if the following
break-in instructions are not
closely followed.
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 Auto/Off lever is in
the "Off" position.
2. Check oil level in pump. See Oil
paragraph in the Maintenance
section for instructions.
3. Recheck all wiring. Make sure
wires are secure at all terminals
connections. Make sure all
contacts move freely and are not
obstructed.
15-ENG15-ENG
4. Openthedrainvalvefullyto
permit air to escape and prevent
air pressure build up in the air tank
during the break-in period.
5. MovetheAuto/Offleverto"Auto"
position. The compressor will
start.
6. Run the compressor for 20
minutes. Make sure the drain
valve and all air lines are open so
there is only a minimal air pressure
build-up in tank.
7. 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.
8. Check for excessive vibration.
Readjust or shim air compressor
feet, if necessary.
9. After 20 minutes, close the drain
valve. The air receiver will fill to
"cut-out" pressure and the motor
will stop.
The compressor is now ready for use.
1. Place Auto/Off lever to "Off".
2. Close the globe valve/air
discharge valve.
3. Visually inspect air lines and
fittings for leaks.
4. Check safety valve. See
under
Maintenance.
AregulatorMUSTbeinstalled
when using accessories rated at less
than 175 psi.
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.
1. Turn the Auto/Off lever to "Auto"
and allow tank pressure to build.
Motor will stop when tank pres-
sure reaches "cut-out" pressure.
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
use
See tank
warning
label
Check Safety Valve
Drain Tank
Oil Leaks
Check Pump Oil
Change Pump Oil
UnusualNoiseand/
or Vibration
Air Filter (1)
Drive Belt-Condition
Motor Pulley/
Flywheel alignment
Air compressor
pump intake and
exhaust valves
Inspect air lines and
fittings for leaks
Remove tank from
service (2)
HeadBolts-Checkthetorquesoftheheadboltsafterthefirstfivehoursofoperation.
1- more frequent in dusty or humid conditions
2- For more information, contact a Trained Service Technician.
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.
17-ENG
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.
All compressed air systems
generate condensate that accumulates
in any drain point (e.g., tanks, filter, after-
coolers, dryers). This condensate con-
tains lubricating oil and/or substances
which may be regulated and must be
disposed of in accordance with local,
state, and federal laws and regulations.
1. SettheAuto/Offleverto"Off".
2. Slowly bleed the air from the air
tank and air distribution system
until tank pressure is approximate-
ly 20 psi.
3. Drain water from air tank by open-
ing drain valve on bottom of tank.
Water will
Risk of property
damage. Drain water
from air tank may contain oil and rust
which can cause stains.
4. After the water has been drained,
close the drain valve. The air com-
pressor can now be stored.
If drain valve is plugged,
release all air pressure. The valve can
then be removed, cleaned, then rein-
stalled.
Oil
Risk of property
damage.Useair
compressor oil only. Multi-weight
automotiveengineoilslike10W30
should not be use in air compressors.
They leave carbon deposits on
critical components, thus reducing
performance and compressor life.
Use30Wcompressoroilora
heavydutySAE30W,non-detergent,
SF grade or better oil. DO NOT use
multi-weight automotive engine oils,
theywillreducecompressorlife.Under
extreme winter condition use SAE-10
weight oil.
Crankcase oil capacity is
approximately 16 fluid ounces (0.47 L).
1. The oil level should be to the
middle of the sight glass (C).
C
A
2. If needed remove oil fill plug (A)
and slowly add oil until it reaches
the middle of the sight glass.
1. Remove the oil fill plug (A).
2. Remove the oil drain plug (B) and
drain oil into a suitable container.
3. Replace the oil drain plug (B) and
tighten securely.
4. Slowly add compressor oil until
the oil level is in the middle of the
sightglass(C).NOTE:Whenfilling
the crankcase, the oil flows very
slowly into the pump. If the oil is
added too quickly, it will overflow
and appear to be full.
18-ENG
Risk of property
damage. Overfilling
with oil will cause premature
compressor failure. Do not overfill.
5. Replace oil fill plug (A) and tighten
securely.
Risk of property
damage. Keeptheair
filter clean at all times. Do not operate
the air compressor with the air filter
removed.
A dirty air filter will not allow the com-
pressor to operate at full capacity.
Keeptheairfiltercleanatalltimes.
1. Remove the air filter cover.
2. Remove the air filter from filter
cover.
Do not operate the
compressor with the air filter removed.
3. Place new air filter into filter cover.
Refer to the Repair Parts for the
correct part number.
4. Replace air filter cover and lock
into place.
1. Turn air compressor off, lock out
the power supply, and relieve all
air pressure from the air tank.
2. Remove the front of the belt
guard by disengaging the snaps.
Insert a flat bladed screwdriver at
each snap location and pry the
beltguard apart.
3. Loosen the wing nut on hold
down plate and tilt motor to allow
for easy removal or installation of
the belt.
4. Remove belt.
5. Replace belt. : The belt
must be centered over the
grooves on the flywheel and
motor pulley.
6. Turn the wing nut on the hold
down plate until it makes contact
with the washer, plus one
additional turn.
7. Replace the belt guard
19-ENG
7. Visually inspect the motor drive
pulley to verify that it is perpen-
dicular to the drive motor shaft.
Points B1 and B2 of Figure
should appear to be equal. If
they are not, loosen the setscrew
of the motor drive pulley and
equalize B1 and B2, using care
not to disturb the belt alignment
performed in step 2.
8. Retighten the motor drive pulley
setscrew. See Repair Parts for
torque specifications.
9. Reinstall belt guard.
Once a year have a Trained Service
Technician check the air compressor
pump intake and exhaust valves.
1. Turn air compressor off, lock out
the power supply, and relieve all
air pressure from the air tank.
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 overwork,
resulting in premature breakdown or
inadequate performance.
The air compressor pump head bolts
should be kept properly torqued.
Check the torques of the head bolts
after the first five hours of operation.
Retighten if necessary. See Repair
Parts for torque specifications.
Once the motor pulley has
been moved from its factory set loca-
tion, the grooves of the flywheel and
pulley must be aligned to within 1/16"
(1.6 mm) to prevent excessive belt
wear.
The air compressor flywheel and
motor pulley must be in-line (in the
same plane) within 1/16" (1.6 mm) to
assure belt retention within flywheel
belt grooves. To check alignment, per-
form the following steps:
1. Turn air compressor off, lock out
the power supply, and relieve all
air pressure from the air tank.
2. Remove belt guard.
3. Place a straightedge against the
outside of the flywheel and the
motor drive pulley.
4. Measure the distance between
the edge of the belt and the
straightedge at points A1 and A2
in figure. The difference between
measurements should be no more
than 1/16" (1.6 mm).
5. If the difference is greater than
1/16" (1.6 mm) loosen the set
screw holding the motor drive
pulley to the shaft and adjust the
pulley’s position on the shaft until
the A1 and A2 measurements
are within 1/16" (1.6 mm) of each
other.
6. Tighten the motor drive pulley
set screw. See Repair Parts for
torque specifications.
20-ENG
ALLMAINTENANCEANDREPAIROPERATIONSNOTLISTEDMUSTBE
PERFORMED BY TRAINED SERVICE TECHNICIAN.
Pressure
Outlet
VALVE
1. Release all air pressure from air
tank. See in the
Maintenance section.
2. Turn air compressor off, lock out
the power supply, and relieve all
air pressure from the air tank.
3. Usinganadjustablewrenchloos-
en outlet tube nut at air tank and
pump. Carefully move outlet tube
away from check valve.
4. Usinganadjustablewrench
loosen pressure relief tube nut
at air tank and pressure switch.
Carefully move pressure relief tube
away from check valve.
5. Unscrewthecheckvalve(turn
counterclockwise) using a 7/8"
open end wrench. the ori-
entation for reassembly.
6. Usingascrewdriver,carefully
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.
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 tight-
en nuts.
11. Perform the Break-in Procedure.
See in the
Operation section.
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