Craftsman 919.167551 User manual
- Category
- Air compressors
- Type
- User manual
Owner’s Manual
Permanently Lubricated
AIR COMPRESSOR
CAUTION: Read the Safety Guidelines
and All Instructions Carefully Before
Operating.
Rev. 0 08/11/09
2- ENG
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........................ 3-9
................................................9
ACCESSORIES .............................................9
..............................................10
...............................................10
......................................... 10-11
............................................ 12-14
......................................... 14-15
............................ 16-17
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.............................. 18-20
......................................... 22-25
ESPAÑOL.............................................. 26-44
......................................... 45-46
.........................47
back cover
If this Craftsman product fails due to a defect in material or workmanship within
one year from the date of purchase, return it to any Sears store, Sears Parts &
Repair Service Center, or other Craftsman outlet in the United States for free
replacement.
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, may result in
.
Indicates a potentially
hazardous situation
which, if not avoided, result in
.
which, if not avoided,
may result in .
This product contains chemicals known to the State of
California to cause cancer, and birth defects or other
reproductive harm. Wash 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.
manual.
Running HP 1.6*
Bore 2.875" (73.0 mm)
Stroke 1.45" (36.8 mm)
Voltage-Single Phase 120V/60HZ
Minimum Branch Circuit Requirement 15 amps
Fuse Type Time Delay
Air Tank Capacity 15 gallons (56.8L)
Approx. Cut-In 160 psi
Approx. Cut-out 200 psi
SCFM @ 90 psig 5.0 *
Noise Level 80 dBA **
* Tested per ISO 1217
**Tested per ISO 3744: 1994
Refer to Glossary for abbreviations.
Sound Pressure Level: LpA = 78.0 dBA re 20μPA
Uncertainty in the Sound Pressure Level: KpA = 3.0 dBA re 20μPA
Sound Power Level: LwA = 92.0 dBA re 1 pw
Uncertainty in the Sound Power Level: KwA = 3.0 dBA re 1 pw
The sum of the emission value and the uncertainty is the limit below which there
is a 95% confidence the value of a single tool will lie below when the tool is new.
4- ENG
• Itisnormalforelectricalcontacts
within the motor and pressure
switch to spark.
• Alwaysoperatethecompressor
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'
(6.1 m) away from spray area. An
additional length of air hose may be
required.
• Storeflammablematerialsin
a secure 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 in any confined area. Store
indoors.
• Unattendedoperationofthis
product could result in personal
injuryorpropertydamage.To
reduce the risk of fire, do not
allow the compressor to operate
unattended.
• Alwaysremaininattendancewith
the product when it is operating.
• Alwaysturnoffandunplugunit
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
contaminants can cause serious
injuryordeath.
• Neveruseairobtaineddirectly
from the compressor to supply
air for human consumption. The
compressor is not equipped with
suitable filters and in-line safety
equipment for human consumption.
5 - ENG
• Exposuretochemicalsindust
created by power sanding, sawing,
grinding, drilling, and other
construction activities may be
harmful.
• Sprayedmaterialssuchaspaint,
paint solvents, paint remover,
insecticides, weed killers, may
contain harmful vapors and poisons.
• 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 protection
or properly fit ting face mask
designed for use with your specific
application.
On February 26, 2002, the U.S. Consumer Product Safety Commission
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
allowingpressurizedairtosuddenlyandforcefullyescape,posingriskofinjury
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.
• Modificationsorattemptedrepairs
to 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.
• Unauthorizedmodificationsto
the safety valve or any other
components which control air tank
pressure.
• Theairtankisdesignedto
withstand specific operating
pressures.Nevermakeadjustments
or parts substitutions to alter the
factory set operating pressures.
6- ENG
• Exceedingthepressureratingof
air tools, spray guns, air operated
accessories, tires, and other
inflatables can cause them to
explode or fly apart, and could
resultinseriousinjury.
• Followtheequipmentmanufacturers
recommendation and never exceed
the maximum allowable pressure
rating of attachments. Never use
compressor to inflate small low
pressureobjectssuchaschildren’s
toys, footballs, basketballs, etc.
•
• 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 similar to these very
rapidly.Adjustpressureregulatoron
air supply to no more than the rating of
the tire pressure. Add air in small incre-
ments and frequently use the tire gauge
to prevent over inflation.
• Yourcompressorispoweredby
electricity. Like any other electrically
powered device, if it is not used
properly it may cause electric
shock.
• Neveroperatethecompressor
outdoors when it is raining or in wet
conditions.
• Neveroperatecompressorwith
protective covers removed or
damaged.
• Repairsattemptedbyunqualified
personnelcanresultinseriousinjury
or death by electrocution.
• Anyelectricalwiringorrepairs
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
productcouldresultinseriousinjury
or death from electrocution. Refer to
paragraph
in the Installation section.
• Makecertainthattheelectrical
circuit to which the compressor is
connected provides proper electrical
grounding, correct voltage and
adequate fuse protection.
7 - ENG
• Thecompressedairstreamcan
cause soft tissue damage to
exposed skin and can propel dirt,
chips, loose particles, and small
objectsathighspeed,resultingin
propertydamageorpersonalinjury.
• Alwayswearcertifiedsafety
equipment: ANSI Z87.1 eye protec-
tion (CAN/CSA Z94.3) with side
shields when using the compressor.
• Neverpointanynozzleorsprayer
toward any part of the body or at
other people or animals.
• Alwaysturnthecompressoroffand
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
injuryiftheycomeintocontactwith
you or your clothing.
• Neveroperatethecompressorwith
guards or covers which are dam-
aged or removed.
• Keepyourhair,clothing,andgloves
away from moving parts. Loose
clothes,jewelry,orlonghaircanbe
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
andcanresultinseriousinjury.
• Anyrepairsrequiredonthisproduct
should be performed by authorized
service center personnel.
8- ENG
• Unsafeoperationofyourcompres-
sorcouldleadtoseriousinjuryor
death to you or others.
• Reviewandunderstandallinstruc-
tions and warnings in this manual.
• Becomefamiliarwiththeoperation
and con trols 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 prod uct.
• Equipareaofoperationwithafire
extinguisher.
• Donotoperatemachinewith
missing, broken, or un au tho rized
parts.
• Aportablecompressorcanfall
from a table, workbench, or roof
causing damage to the compressor
andcouldresultinseriousinjuryor
death to the operator.
• Alwaysoperatecompressorina
stable secure position to prevent
accidental movement of the unit.
Never operate compressor on a
roof or other elevated position. Use
additional air hose to reach high
locations.
• Seriousinjurycanresultfrom
attempting to lift too heavy an
object.
• Thecompressoristooheavyto
be lifted by one person. Obtain
assistance from others before lifting.
9 - ENG
• Undersomeconditionsanddura-
tion of use, noise from this product
may contribute to hearing loss.
• Alwayswearcertifiedsafetyequip-
ment: ANSI S12.6 (S3.19) hearing
protection.
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.
Whenanaircom-
pressor 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 automati-
cally 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.
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.
• 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
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.
Remove unit from carton and discard
all packaging.
• Locatetheaircompressorina
clean, dry and well ventilated
area.
• Theaircompressorshouldbe
located at least 12" (30.5 cm)
away from the wall or other
obstructions that will interfere
with the flow of air.
• Placetheaircompressoronaflat
level surface resting on the rub-
ber bumpers and wheels
• Theaircompressorpumpand
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 portable air compressor is
equipped with a cord having a
grounding wire with an appropriate
grounding plug (see following
illustrations).
1. The cord set and plug with this
unit contains a grounding pin.
This plug MUST be used with a
grounded outlet.
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.
See illustration.
Outlets
3. Inspect the plug and cord before
each use. Do not use if there are
signs of damage.
4. If these grounding instructions are
not completely understood, or if in
doubt as to whether the compres-
sor is properly grounded, have the
installation checked by a qualified
electrician.
11 - ENG
If an extension cord must be used, be
sure it is:
• a3-wireextensioncordthathas
a 3-blade grounding plug, and a
3-slot receptacle that will accept
the plug on the product
• ingoodcondition
• nolongerthan50feet(15.2m)
• 12gauge(AWG)orlarger.(Wire
size increases as gauge number
decreases.10AWGand8AWG
may also be used. DO NOT USE
14OR16AWG.)
The use of an
undersized extension
cord 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. Always use an air hose rated
300 psi or greater.
Refer to the specification chart for the
voltage and minimum branch circuit
requirements.
Certain air
compressors can be
operated on a 15 amp circuit if the
following conditions are met.
1. Voltage supply to circuit must
comply with the National Electrical
Code.
2. Circuit is not used to supply any
other electrical needs.
3. Extension cords comply with
specifications.
4. Circuit is equipped with a 15 amp
circuit breaker or 15 amp time
delay fuse. 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 compres-
sor 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.
Whentransporting
the compressor in
a vehicle, trailer,
etc., make sure
the tank is drained
and the unit is
secured with
straps to prevent
tipping. Use care
when driving to
prevent tipping the
unit over in the vehicle. Damage can
occur to the compressor or
surrounding items if the compressor is
tipped.
Always use two people when lift-
ing and lift from the recommended
lift points. DO NOT lift by wheels or
shroud.
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.
1. Grasp handle of compressor and
tilt compressor back to rest on
wheels.
2. Whenlocationisreachedslowly
lower compressor to ground.
resting on the
rubber bumpers and wheels
12- ENG
Controls the air pressure
shown on the outlet pressure gauge.
Pull the knob out and turn clockwise
to increase pressure and counterclock-
wisetodecreasepressure.Whenthe
desired pressure is reached push knob
in to lock in place.
The
universal quick-connect body accepts
the three most popular styles of quick-
connect plugs: Industrial, automotive
(Tru-flate), and ARO. One hand push-
to-connect operation makes connec-
tions simple and easy.
Valve
The drain valve is
located at the
base of the air
tank and is used
to drain conden-
sation 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.
READTHISOWNER’SMANUALANDSAFETYRULESBEFOREOPERATING
YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with
thelocationofvariouscontrolsandadjustments.Savethismanualforfuture
reference.
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 outlet
pressure gauge indicates the air pres-
sure available at the outlet side of the
regulator. This pressure is controlled
by the regulator and is always less
than or equal to the tank pressure.
The tank pres-
sure gauge indicates the reserve air
pressure in the tank.
Outlet
Pressure
Pressure
13 - ENG
Compresses air into the air tank.
Workingairisnotavailableuntilthe
compressor has raised the air tank
pressure above that required at the air
outlet.
Valve
Whentheair
compressor is
operating, the
check valve is
"open", allowing
compressed air to
enter the air tank.
Whentheaircompressorreaches"cut-
out" pressure, the check valve
"closes", allowing air pressure to
remain inside the air tank.
Air
Filter
This filter is
designed to clean
air coming into the
pump. This filter
must always be
clean and ventila-
tion openings free
from obstructions. See Maintenance.
: The motor
has a 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. Set the Auto/Off switch to "Off"
and unplug unit.
2. Allow the motor to cool.
3.
Plug the power cord into the
correct branch circuit receptacle.
4. Set the Auto/Off lever to "Auto"
position.
Set the Auto/Off switch to "Off".
1. Place Auto/Off switch to "Off".
2. Pull regulator knob out, turn coun-
ter-clockwise until it stops. Push
knob in to lock in place.
3. Attach hose and accessories.
The hose or accessory will
require a quick connect plug if the
air outlet is equipped with a quick
connect.
Firmly
Risk of unsafe
operation.
Compressed air from the unit may
contain wa ter condensation and
oil mist. Do not spray un fil tered air
at an item that could be damaged
by moisture. Some air tools and
accessories may require filtered air.
Read the in struc tions for the air tools
and accessories.
14- ENG
1. Turn the Auto/Off switch to "Auto"
and allow tank pressure to build.
Motor will stop when tank pres-
sure reaches "cut-out" pressure.
2. Pull the regulator knob out and
turn clockwise to increase
pressure.Whenthedesired
pressure is reached push knob in
to lock in place. The compressor
is ready for use.
The compressor is ready for use.
label
Check safety valve
X
Inspect air filter
X
1
Drain air tank
X
Check for unusual noise/vibration
X
Check for air leaks X*
Clean compressor exterior
X
Remove tank from service X
2
* Tocheckforairleaksapplyasolutionofsoapywateraroundjoints.While
compressor is pumping to pressure and after pressure cuts out, look for air
bubbles to form.
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.
15 - 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. Set the Auto/Off switch to "Off"
and unplug unit.
2. Pull the regulator knob out and
turn counterclockwise to set the
outlet pressure to zero.
3. Remove the air tool or accessory.
4. Pull ring on safety valve allowing
air to bleed from the tank until
tank pressure is approximately 20
psi. Release safety valve ring.
5. Drain water from air tank by open-
ing drain valve (counter-clockwise)
on bottom of tank.
Risk of property
damage. Drain water
from air tank may contain oil and rust
which can cause stains.
6. After the water has been drained,
close the drain valve (clockwise).
The air compressor can now be
stored.
If drain valve is plugged,
release all air pressure. The valve can
then be removed, cleaned, the rein-
stalled.
1. Place Auto/Off switch to "Off".
2. Allow unit to cool.
3. Remove filter cover from base.
4. Remove element from filter base.
5. Place new element back in filter
base. Purchase replacement parts
from your local dealer or autho-
rized service center. Always use
identical replacement parts.
6. Snap filter cover to filter base.
Risk of property
damage. Do not
operate without air inlet filter
16- ENG
5. Unscrew
Valve
Outlet
the
check
valve
(turn
counter-
clock-
wise)
using a
7/8"
open
end
wrench.
6. Using a screwdriver, carefully push
the valve disc up and down.
In closed position
disc is visible.
In open
position
nothing is
visible.
Screwdriver
The valve disc should move
freely up and down on a spring which
holds the valve disc in the closed posi-
tion; if not the check valve needs to be
replaced.
7. Install the new check valve (turn
clockwise).
8. Replace the outlet tube and tight-
en nuts.
9. Replace the shroud.
1. Release all air pressure from air
tank. See in the
Maintenance section.
2. Unplug outfit.
3. Remove the shroud on the outlet
tube side. Remove screw
with T-20 Torx screwdriver and
loosen all the tabs on the shroud
with a flat screwdriver before
removing.
4. Usinganadjustablewrench,loos-
en outlet tube nut at air tank and
pump head. Carefully move outlet
tube away from check valve.
17 - ENG
1. Release all air pressure from air
tank. See in the
Maintenance section.
2. Unplug compressor.
3. Remove shrouds.
4. Remove the outlet pressure gauge
and quick connect from the
regulator.
Outlet
Pressure
5. Remove the regulator.
6. Reapply pipe sealant to outlet
pressure gauge and quick
connect.
7. Assemble quick connect to new
regulator and tighten.
Regulator
Arrow
Quick
Connect
Nipple
8. Apply pipe sealant tape to the
nipple.
9. Assemble the regulator.
Arrow indicates flow of air. Make
sure it is pointing in the direction
of air flow.
10. Use the hex on quick connect
to tightening regulator. Orient as
shown.
11. Assemble outlet pressure gauge.
Orient outlet pressure gauge to
read correctly.
12. Replace shrouds.
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. Drain water from air tank. See
under Maintenance.
Water will
3. Protect the electrical cord and
air hose from damage (such as
being stepped on or run over).
Windthemlooselyaroundthe
compressor handle.
4. Store the air compressor in a
clean and dry location.
18- ENG
.
PROBLEM
Excessive
tank pressure
- safety valve
pops off.
Pressure switch does not
shut off motor when
compressor reaches
"cut-out" pressure.
Move Auto/Off lever to the
"Off" position, if the outfit
does not shut off contact a
Trained Service Technician.
Pressure switch "cut-out"
too high.
Contact a Trained Service
Technician.
Air leaks at fit-
tings.
Tube fittings are not tight
enough.
Tighten fittings where air can
be heard escaping. Check
fittings with soapy water solu-
tion. .
Air leaks at or
inside check
valve.
Check valve seat damaged. Replace check valve. Refer to
the
in the Service and Adjustment
section.
Air leaks in air
tank or at air
tank welds.
Defective air tank. Air tank must be replaced. Do
not repair the leak.
Air leaks
between head
and valve plate.
Leaking seal. Contact a Trained Service
Technician.
19 - ENG
PROBLEM
Pressure read-
ing on the regu-
lated pressure
gauge drops
when an acces-
sory is used.
It is normal for "some"
pressure drop to occur.
If there is an excessive
amount of pressure drop when
theaccessoryisused,adjust
the regulator following the
instructions in the
paragraph in the
Operation section.
Adjusttheregulated
pressure under flow
conditions (while accessory is
being used).
Knocking Noise. Possible defect in safety
valve.
Operate safety valve manually
by pulling on ring. If valve still
leaks, it should be replaced.
Defective check valve. Replace check valve.
Compressor is
not supplying
enough air
to operate
accessories.
Prolonged excessive use of
air.
Decrease amount of air usage.
Compressor is not large
enough for air requirement.
Check the accessory air
requirement. If it is higher than
the SCFM or pressure sup-
plied by your air compressor,
you need a larger com-
pressor.
Hole in hose. Check and replace if required.
Check valve restricted. Replace check valve.
Air leaks. Tighten fittings.
Restricted air intake filter. Clean or replace air intake
filter. Do not operate the
air compressor with the fil-
ter removed. Refer to the
Air Filter paragraph in the
Maintenance section.
Regulator knob
has continuous
air leak.
Damaged regulator. Replace.
Regulator will
not shut off air
outlet.
Damaged regulator. Replace.
20- ENG
PROBLEM
Motor will not
run.
Motor overload protection
switch has tripped.
Refer to
under Operation.
If motor overload protection
trips frequently, contact a
Trained Service Technician.
Tank pressure exceeds
pressure switch "cut-in"
pressure.
Motor will start automatically
when tank pressure drops
below "cut-in" pressure of
pressure switch.
Extension cord is wrong
length or gauge.
Check for proper gauge wire
and cord length.
Check valve stuck open. Replace check valve.
Loose electrical connections. Have checked by a Trained
Service Technician.
Possible defective motor. Have checked by a Trained
Service Technician.
Paint spray on internal motor
parts.
Have checked by a Trained
Service Technician. Do not
operate the compressor in the
paint spray area. See flam-
mable vapor warning.
Fuse blown, circuit breaker
tripped.
1. Check fuse box for blown
fuse and replace as
necessary. Reset circuit
breaker. Do not use a fuse
or circuit breaker with
higher rating than that
specified for your particu-
lar branch circuit.
2. Check for proper fuse.
You should use a time
delay fuse.
3. Check for low voltage
conditions and/or proper
extension cord.
4. Disconnect the other
electrical appliances from
circuit or operate the
compressor on its own
branch circuit.
Compressor is tripping
the Ground Fault Current
Interrupt (GFCI) switch.
Have checked by a Trained
Service Technician.
Faulty pressure switch Have checked by a Trained
Service Technician.
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Craftsman 919.167551 User manual
- Category
- Air compressors
- Type
- User manual
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