Sears 919.153111 Air Compressor User Manual

 SEARS
OWNERS
MANUAL
MODEL NO.
919.153011
919.153111
Listed
Up) 721Y
Air
Compressor
IMPORTANT:
Read the Safety Guidelines
and Al Instructions
Carefully Before Operating
CRAFTSMAN
PERMANENTLY LUBRICATED
AIR COMPRESSOR
Record in the spaces provided.
(1) The model number which can be
found on the label on the back of the
shroud.
(2) The code number which can be
found on the foil ¡abel on the back of
the air tank.
(3) The Manufacturers Number (ASME
Code Compressors only) is located
on the metal data plate which is
welded onto the back side of the air
tank. (This data plate is painted the
same color as the tank.)
Retain these numbers for future
ADS RATION reference. -
MAINTENANCE
REPAIR PARTS Model No. —
Code No.
Mfg. No.
51-30-07-50 2/90
Sears, Roebuck and Co., Chicago, IL 60684 U.S.A.
TABLE OF CONTENTS
Page
WARRANTY nan arranca. 3
SAFETY GUIDELINES... aaa, 3
WARNING CHART eno 3
SPECIFICATION CHART... 111110 a LL LL 5
GLOSSARY a a reareaeaaa 5
ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS .. 5
GENERAL INFORMATION 1111 LL LL LA 6
DESCRIPTION OF OPERATION... LL LL 6
ASSEMBLY INSTRUCTIONS... 1 LL LL Aa 7
Tools Needed for Assembly... 1111L LL LL LL LA 7
Installing Wheels, Handle, Rubberfootstrip..................... ...... 7
installing Regulator |... a aeaede e e 7
INSTALLATION AND BREAK-IN PROCEDURES. .................. 7
Location of Air Compressor. .......... LL LA LL LL LL 7
Lubricationand Oil... LL LL LL A a LL AA ALL 7
Extension Cords ..... 1120212004 aa eee La aan end a. 7
Grounding instructions. ............ aaa aaa 8
Break-in Procedures. ......... aaa a eaenaa 8
OPERATING PROCEDURES ............ LL LA 8
MAINTENANCE... ae. 9
Air FRE 2er AAA a a RAA A LL ALL 9
Check Valve — Repilacement 11111111 LL AL LL LL 9
Safety Valve — InspectionN aaa. 9
MOOT. aerea adan ona aa rana 9
STORAGE aaa aaa, 10
TROUBLESHOOTING GUIDE... LL A 10
AIR COMPRESSOR DIAGRAM... 12
Parts List anno aredocea ae 13
COMPRESSOR PUMP DIAGRAM ......... LL 14
Parts List aaa aaeaoeo o aro. 15
FULL ONE YEAR WARRANTY
AIR COMPRESSORS
If this air compressor fails due to a defect in material or workmanship within one year from the
date of purchase, RETURN IT TO THE NEAREST SEARS SERVICE CENTER/DEPARTMENT
THROUGHOUT THE UNITED STATES AND SEARS WILL REPAIR IT, FREE OF CHARGE.
If this air compressor is used for commercial or rental purposes, the warranty will apply for ninety
days from the date of purchase.
This warranty gives you specific legal rights and you may have other rights which vary from slate
to state.
Sears, Roebuck and Co., Sears Tower, Dept. 698/731 CR-W, Chicago, IL. 60684
SAFETY GUIDELINES
This manual contains information that is important for you to know and understand. This informa-
tion relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help
you recognize this information, we use the following symbols. Please read the manual and pay
attention to these sections.
URGENT SAFETY INFORMATION - A
HAZARD THAT WILL CAUSE SERIOUS
INJURY OR LOSS OF LIFE.
Be ole aie ie Ло PP PP
"A
WARNING |
IMPORTANT SAFETY INFORMATION — A
HAZARD THAT MIGHT CAUSE SERIOUS
INJURY OR LOSS OF LIFE.
§ CAUTION $ NOTE
Information for preventing damage to Information that you should pay special atten-
equipment. tion to.
WARNING
HAZARDS CAN OCCUR IF EQUIPMENT IS NOT USED PROPERLY.
PLEASE READ THE FOLLOWING CHART.
WHAT TO
LOOK FOR WHAT COULD HAPPEN HOW TO PREVENTIT
Hot Parts The compressor head gets hot when the air Never touch the air compressor head during or
compressor is running. If you touch it, you may
be seriously burned.
immediately after operation.
Flammable
Vapors
it is normal for the motor's electrical contacts to
spark when the compressor starts or stops. À
spark can ignite flammable vapors from
gasoline, flammable paints or solvents, causing
an explosion or fire.
Operate the compressor in well ventilated areas
that are free of gasoline, flammable paint or solvent
vapors.
If spraying a flammable material — provide ampie
ventilation. Never spray in a closed area. There
must be a flow of fresh air at ail times.
Do not operate the compressor while you are
carrying it, or in the spray area.
WHAT 70
LOOK FOR
WHAT COULD HAPPEN
HOW TO PREVENT IT
Air Tank
Modifications to the air compressor can cause
the air tank to rupture or explode,
Changing the air tank will cause it to weaken.
The tank may rupture or explode.
Do not adjust, remove or tamper with the safety
valve or pressure switch. If safety valve or pressure
switch replacement is necessary, a part with the
same rating must be used.
Never use a motor with a higher horsepower rating
than the one supplied.
Never replace the air tank with a different model or
a larger tank.
Never drill into, weld, or in any way modify the air
tank.
Compressed Air
Compressed air can propel dust, dirt, or loose
particles it comes in contact with.
Too much air pressure applied to air tools or
accessories can cause damage or risk of
bursting.
Never point any nozzle or sprayer toward a person
or any part of the body.
Always wear safety goggles or glasses when using
the air compressor.
Always turn the air compressor off before attach-
ing Or removing accessories.
Check the manufacturers maximum pressure rat-
ing for air toois and accessories. Regulator outlet
pressure must never exceed the maximum pres-
sure rating,
Electricity
Your air compressor is powered by electricity.
Like any other electrically powered device, if itis
not used properly it may cause electrical shock.
Always unplug the air compressor prior to mainte-
nance or repair.
Never use the air compressor outdoors when it is
raining.
Always plug the cord into an electrical outlet with
the specified voltage and adequate fuse
protection.
Toxic Vapors
It is normal for compressed air to contain toxic or
irritating vapors. Such vapors are harmful if
inhaled.
Certain materials you are spraying (like paint,
weed killer, sand or insecticide) can be harmful
if you inhale them,
Never directly inhale the compressed air produced
by this unit.
Head labels and safely data for all materials you
spray. Follow all safety precautions.
Use a mask or respirator if there is a chance of
inhaling toxic sprayed materials. Masks and
respirators have limits and will only provide protec-
tion against some kinds and limited amounts of
toxic material. Read mask and respirator instruc-
tions carefully. Consult with a safety expert or
industrial hygienist if you are not sure about the use
of a certain mask or respirator.
Unsuitable
Solvents
The solvents 1,1,1 — Trichloroethane and Methy-
lene Chloride can chemically react with alumi-
num used in paint spray guns, paínt pumps, etc.,
and cause an explosion. These solvents can
also react with galvanized components and
cause corrosion and weakening of parts. This
does not affect your air compressor — but it may
affect the equipment being used.
if the material you intend to spray contains the soi-
vents listed at left {read the label or data sheet), do
not use accessories that contain aluminum or gal-
vanized parts. You must either change the material
you intend to spray, or use only stainless steel
spray equipment.
A e de AAA EE
SPECIFICATION CHART
Model No. 919153011 a18.153111
Horsepower 1 1
Displacement CFM 6.0 6.0
Bore 2%" Ye"
Stroke 1.357 1.35"
Voltage-Single Phase 120 120
Minimum Branch Circuit Requirement *15 amps “15 amps
“Fuse Type “Fusetron” “Fusetron”
Type T Type T
Air Tank Capacity ~ GAL. 8 8 ASME
Approximate Cut-in Pressure 80 80
Approximate Cut-out Pressure 100 100
SCFM @ 40 psig 4.5 4.5
SCFM (@ 90 psig 3.0 3.0
{ CAUTION 3
As.
OF FO OOO O TO OY
These compressors can be operated on a 15 amp circuit if:
1. Voltage supply to circuit is normal.
2. Circuit is not used to supply any other electrical needs (lights, appliances, etc.)
3. Extension cords comply with specifications in owners manual.
4. Circuit is equipped with 15 amp circuit breaker or 15 amp Fusetron Type “T” time delay fuse.
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.
A circuit breaker is preferred. Use only a fuse or circuit breaker that is the same rating as the branch circuit the air
compressor is operated on. !f the air compressor is connected to a circuit protected by fuses, use dual element time
delay fuses (Buss Fusetron Type “T” oniy).
CFM: Cubic feet per minute.
GLOSSARY
SCFM: Standard cubic feet per minute; a unit of meas-
ure of air delivery.
PSIG: Pounds per square inch gauge; a unit of meas-
ure of pressure.
ASME: American Society of Mechanical Engineers;
made, tested, inspected and registered to meet the
standards of the ASME.
U.L. LISTED: Samples of compressor outfits, taken
from production, were submitted to U.L. and found to
Cut-In Pressure: While the motor is off, air tank pres-
sure drops as you continue to use your accessory.
When the tank pressure drops to a certain iow level the
motor will re-start automatically. The low pressure at
which the motor automatically re-starts is called “cut-in
pressure”,
Cut-Qut Pressures: When you turn on your air com-
pressor and it begins to run, air pressure in the air tank
begins to build. ti 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’.
comply with their requirements for design and
performance.
ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS
The following accessories are available through the current general sales catalog or at full-line. Sears stores.
« SPRAY GUNS « PAINT TANKS * AIR TOOLS:
« BLOW GUNS * AIR TANKS Sanders
> AIR CAULKING GUNS * INFLATER KITS Drills
» AIR POWERED WASHER GUNS + QUICK CONNECTOR SETS impact wrenches
+ SANDBLASTERS (various sizes) Hammers
* AIR BRUSHES * VISCOSIMETER + AIR HOSE:
» AIR PRESSURE REGULATORS
- OIL FOG LUBRICATORS
Ма”, Зе” ОГ Зв” В).
in various iengths
+ AIR LINE FILTERS
» TIRE AIR CHUCKS
You have purchased an air compressor unit consisting of
a 1 cylinder, single-stage air compressor pump, an air
tank, air hose, wheels, handle, and associated controls.
You will also find an air chuck.
This air compressor requires no oil. Now you can enioy
all the benefits of having an air compressor without ever
having to purchase, add or change oil.
REGULATOR
AIR OUTLET
REGULATED
PRESSURE GAUGE
PRESSURE SWITCH
TANK PRESSURE GAUGE
SAFETY VALVE
Air Compressor Pump: To compress air, the piston
moves up and down in the cylinder. On the downstroke,
air is drawn in through the air intake valves. The exhaust
valve remains closed. On the upstroke of the piston, air is
compressed. The intake valves close and compressed
alr is forced out through the exhaust valve, through the
outlet tube, through the check valve and 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 vaive is “open”, allowing compressed air to enter
the air tank. When the air compressor reaches “cut-out”
pressure, the check valve “cioses”, 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 com-
pressor nead and the outlet tube when the air compres-
sor reaches “cut-out” pressure or is shut off. if the air is
not released, the motor will try to start, but will be unable
to. The pressure release valve allows the motor to restar!
freely. When the motor stops running, air will be heard
escaping from the valve for a few seconds. No air should
be heard leaking when the motor is running.
Pressure Switch: The pressure switch automatically
starts the motor when the alr tank pressure drops below
N OF OPER
Your air compressor can be used for operating paint
spray guns, air tools, caulking guns, grease guns, air
brushes, sandblasters, or inflating tires and plastic toys,
spraying weed Killers, insecticides, etc.
Separate air transformers which combine the functions
of air regulation and/or moisture and dirt removal should
be used where applicable.
AIR FILTER (NOT SHOWN)
DRAIN COCK
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
alr compressor at its cut-out pressure setting, the safety
valve will protect against high pressure by “popping out”
at its pre-set pressure.
Regulator: The air pressure coming from the air tank is
controlled by the regulator knob. Turn the knob
clockwise to increase pressure and counter-clockwise
to decrease pressure, To avoid minor readiustment after
making a change in pressure setting, always approach
the desired pressure from a lower pressure. When
reducing from a higher to a lower setting, first reduce to
some pressure less than that desired, then bring up to
the desired pressure. Depending on the air requirements
of each particular accessory, the outlet regulated air
pressure may have 10 be adjusted while operating the
accessory.
Outlet Pressure Gauge: The outlet pressure gauge
indicates the air pressure available ai the outlet side of
the regulator. This pressure is controlled by the regulator
and is always less or equal to the tank pressure. See
“Operating Procedures.”
Tank Pressure Gauge: The tank pressure gauge indi-
cates the reserve air pressure in the tank.
ASSEMBLY INSTRUCTIONS
Tools Needed for Assembly
< pipe thread sealant (not included)
- an adjustable wrench for attaching the pressure
regulator
a %s” socket or open end wrench for attaching the
wheels and hose adapter.
° a 7/6" open end wrench for attaching the air pressure
gauges
« a 346” hex key for installing the plug in the reguiator
* a ¥%" open end wrench to tighten handie screws
installing Wheels, Handle, Rubber Foot Strip
| WARNING
THE WHEELS AND HANDLE DO NOT PRO-
VIDE 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. Attach the handle to the inside of the compressor sad-
dle by pushing the handle in, until the slotin the handie
engages with the tabs in the saddle. Puli the handle
back and install the two screws, one on each side of
the saddle. Tighten securely.
a a a aie i ah an a a ai oe Pe Te PE
nal Sul gl gl Ng a ag ug ag CE OR ONE EW
ply i hy
Ww
Fa
gig gl a a ag al NEE EAE
It may be necessary to brace or supportone
end of the outfit when attaching the wheels
and the rubber foot strip, because the air
compressor will have a tendency to tip.
2 Remove the protective paper strip from the adhesive
backed rubber foot strip. Attach the rubber foot strip to
the bottom of the air tank leg. Press firmiy into piace.
3, Attach one wheel! to each side of the air compressor.
Use one shoulder bolt and one nut for each wheel.
Tighten securely.
installing Regulator
Use a small amount of pipe thread sealant on ali pipe
thread joints.
Install the regulator on the end of the manifold using the
short pipe nipple. The arrow on the botiom of the
regulator must point away from the manifold in order for
the regulator to function properly.
Install the adapter and plug in the regulator. The piug is
supplied with the regulator. Install the gauges. See dia-
gram below.
PLUG
PIPE MANIFOLD
NIPPLE
REGULATOR /
ADAPTER 7 A
REGULATED TANK
PRESSURE GAUGE PRESSURE GAUGE
INSTALLATION PROCEDURES
Location of the Air Compressor
{ ocaie the air compressor in a clean, dry and well venti-
lated area. The air filter must be kept clear of obstruc-
tions which could reduce air delivery of the air
compressor. 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 head
and shroud are designed to allow for proper cooling. If
humidity is high a Sears air filter can be installed to
remove excessive moisture. Follow the instructions
packaged with the air filter for proper installation.
Lubrication and Oil
This unit needs no additional lubrication or oiling.
Extension Cords
Use extra air hose instead of an extension cord to avoid
voltage drop and power loss to the motor.
If an extension cord must be used, be sure it is!
о а 3-wire extension cord that has a 3-blade grounding
plug, and a 3-slot receptacie 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.)
Grounding Instructions
WARNING
IMPROPER GROUNDING CAN RESULT IN
ELECTRICAL SHOCK. IN THE EVENT OF A
SHORT CIRCUIT, GROUNDING REDUCES
THE RISK OF SHOCK BY PROVIDING AN
ESCAPE WIRE FOR THE ELECTRIC CUR-
RENT. THIS AIR COMPRESSOR MUST BE
PROPERLY GROUNDED.
1. The air compressor is equipped with a cord having a
grounding wire with an appropriate grounding plug.
The plug must be used with an outlet that has been
installed and grounded in accordance with all local
codes and ordinances. The outlet must have the
same configuration as the plug. DO NOT USE AN
ADAPTER.
2. Do not modify the plug that has been provided. H it
does not fit the available outlet, the correct outlet
should be installed by a qualified electrician.
3. Inspect the plug and cord before each use. Do not use
if there are signs of damage.
A DANGER
RISK OF ELECTRICAL SHOCK. IF REPAIR-
ING OR REPLACING CORD OR PLUG, THE
GROUNDING WIRE MUST BE KEPT SEPA-
RATE FROM THE CURRENT-CARRYING
WIRES. NEVER CONNECT THE GROUND-
ING WIRE TO A FLAT BLADE PLUG TER-
MINAL. (THE GROUNDING WIRE HAS
INSULATION WITH AN OUTER SURFACE
THAT IS GREEN — WITH OR WITHOUT YEL-
LOW STRIPES.)
if these grounding instructions are not completely under- *
stood, or if in doubt as to whether the compressor is
properly grounded, have the installation checked by a
qualified electrician,
OUTLET PLUG
Grounding
> Pin L
White
Wire
Terminal
Grounding
Pin
Break-in Procedures
This procedure is required only once, before the air com-
pressor is pui into service.
1. Set the pressure switch OFF/AUTO lever to the “OFF”
position.
2. Piug the power cord into the correct branch circuit
receptacle.
3. Turn the regulator clockwise, opening it fully, to pre-
vent air pressure build-up in the tank.
4. Move the OFF/AUTO lever to “AUTO”. The compres-
sor will start,
5. Bun the compressor for 15 minutes. Make sure the
regulator is open and there is no tank pressure build-
up.
6. After 15 minutes, close the regulator by turning it
counter-clockwise. The air tank will fill to cut-out prés-
sure and then the motor will stop.
Refer to Operating Procedures,
OPERATING PROCEDURES
1. Before attaching air hose or accessories, make sure
the OFF/AUTO lever is set to “OFF” and the air
regulator is closed. (Close it by turning it counter-
clockwise.)
2. Attach hose and accessories.
WARNING
TOO MUCH AIR PRESSURE CREATES A
HAZARDOUS RISK OF BURSTING. CARE-
FULLY FOLLOW STEPS 3 AND 5 EACH TIME
THE COMPRESSOR IS USED.
3. Check the manufacturer's maximum pressure rating
for air tools and accessories. The regulator outlet
pressure must never exceed the maximum pressure
rating.
4. Turn the OFF/AUTO lever to “AUTO” and allow tank
pressure to build. Motor will stop when tank pressure
reaches “cut-out” pressure.
5. Open the regulator by turning it clockwise, Adjust the
regulator to the correct pressure setting. Your com-
pressor is ready for use.
6. Always operate the air compressor in well-ventilated
areas; free of gasoline or other solvent vapors. Do
not operate the compressor near the spray area.
* When you are finished:
7, Set the “OFF-AUTO" lever to “OFF”.
8. Turn the regulator counter-clockwise and set the out-
let pressure to zero.
9. Remove the air tool or accessory.
10. Open the regulator and allow the air to slowly bleed
from the tank. Close the regulator when tank pres-
sure is approximately 20 psi.
11. Drain water from air tank.
WARNING
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.
With tank pressure at approximately 20 psi, open
the drain cock and allow moisture to drain.
NOTE
If drain cock valve is plugged, release ali air pres-
sure. The valve can then be removed, cleaned, then
reinstalled.
12. After the water has been drained, close the drain
cock. The air compressor can now be stored.
MAINTENANCE
WARNING |
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.
Air Filter — Inspection
NOTE
Keep the air filter clean at all times. Do not oper-
ate the compressor with the air filter removed.
A dirty air filter will not allow the compressor {o operate
at full capacity. Before you use the compressor, check
the air filter to be sure it is clean.
If it is dirty, simply pull it out. You may wash it with a mild
detergent and warm water, or replace it.
Check Valve — Replacement
1. Release all air pressure from air tank and unplug
outfit.
. Remove shroud.
. Loosen the top and bottom nuts and remove the
outlet tube.
. Remove the pressure release tube and fitting.
. Unscrew the check valve (turn counterclockwise)
using a socket wrench.
, Check that the valve disc moves freely inside the
check valve and that the spring holds the disc in the
upper, closed position. The check valve may be
cleaned with a solvent, such as paint and varnish
remover.
7. Apply sealant to the check valve threads. Reinstall
the check valve {turn clockwise}.
8. Replace the pressure release tube and fitting.
9. Replace the outlet tube and tighten top and bottom
nuts,
10. Replace the shroud.
on & со Ро
с
Safety Valve — inspection
WARNING
IF THE SAFETY VALVE DOES NOT WORK
PROPERLY, OVER-PRESSURIZATION MAY
OCCUR, CAUSING AIR TANK RUPTURE OR
AN EXPLOSION. OCCASIONALLY PULL
THE RING ON THE SAFETY VALVE TO
MAKE SURE THAT THE SAFETY VALVE
OPERATES FREELY. IF THE VALVE 15
STUCK OR DOES NOT OPERATE
SMOOTHLY, IT MUST BE REPLACED WITH
THE SAME TYPE OF VALVE.
Motor
The motor has an automatic reset thermal overioad pro-
tector. If the motor overheats for any reason, the over-
load protector will shut off the motor. The motor must be
aliowed to cool down before restarting. The compressor
will automatically re-start after the motor cools.
If the overload protector shuts the motor off frequently,
check for a possible voltage problem. Low voltage can
also be suspected when:
1. the motor does not get up to full power or speed;
2 fuses blow out when starting the motor; lights dim and
remain dim when motor is started and is running.
Before you store the air compressor, make sure you do
the following:
STORAGE
1. Review the “Maintenance” section on the preceeding
pages and perform maintenance as necessary. Be
sure to drain water from the air tank.
TROUBLESHOOTING GUIDE
WARNING |
PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS, OR COM-
PRESSED AIR SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY
REPAIRS UNPLUG THE COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.
2.
Protect the electrical cord and air hose from damage
{such as being stepped on or run over). Wind them
loosely around the compressor handle.
Store the air compressor in a clean and dry location.
PROBLEM
CAUSE
CORRECTION
Excessive Tank pressure —
safety valve pops off.
Pressure switch does not shut off
motor when compressor reaches
“cut-out” pressure.
Pressure switch “cut-out” too
high.
Move the pressure switch lever to the “OFF” posi-
tion. if the outfit doesn’t shut off, and the electrical
contacts are welded together, replace the pressure
switch.
It the contacts are good, check to see if the pin in
the bottom of the pressure release valve is stuck. if
it does not move freely, replace the valve.
Return the outfit to Sears Service Center to check
and adjust, or replace switch.
Air leaks at fittings
Tube fittings are not tight enough.
Tighten fittings where air can be heard escaping.
Check fittings with soapy water solution. DO NOT
OVER-TIGHTEN.
Air leaks at check valve.
Defective or dirty check valve.
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.
Remove and clean or replace check valve. DO
NOT OVER-TIGHTEN.
Air leaks at pressure
switch release valve
Defective pressure switch
release valve.
Defective check valve.
Remove and replace the release valve.
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.
Remove and clean or replace check vaive. DO
NOT OVER-TIGHTEN,
Air leaks in air tank.
Defective air tank.
Air tank must be replaced. Do not repair the leak.
WARNING
DO NOT DRILL INTO, WELD, OR
OTHERWISE MODIFY AIR TANK OR IT
WILL WEAKEN.
Pressure reading on the
regulated pressure gauge
drops when an accessory is
used.
It is normal for “some” pressure
drop to occur.
if there is an excessive amount of pressure drop
when the accessory is used, adjust the regulator
following the instructions on pg. 6.
Note
Adjust the regulated pressure under flow
conditions (while accessory is being
used.)
TROUBLESHOOTING GUIDE (Continued)
PROBLEM
CAUSE
CORRECTION
Air leak from Safety Vaive
Possible defect in Safety Valve.
Operate safety valve manually by pulling on ring. В
valve still leaks, it should be replaced.
Knocking Noise
Defective Check Valve.
Remove and clean or replace.
Compressor is not supply-
ing enough air 10 operate
accessories.
Prolonged excessive use of air.
Compressor is not large enough
for air requirement.
Restricied air intake filter.
Hole in hose.
Check Valve restricted.
Air leaks.
Decrease amount of air usage.
Check the accessory air requirement. if it is higher
than the SCFM or pressure supplied by your air
compressor, you need a larger compressor.
Clean or replace air intake filter. Do not operate the
air compressor in the paint spray area.
Check and replace if required.
Remove and clean or replace.
Tighten fittings. (See Air Leaks Section of
Troubleshooting Guide.)
Motor Will Not Run
Motor overload protection switch
has tripped.
Tank pressure exceeds pressure
switch “cut-in” pressure.
Wrong gauge wire or length of
extension cord.
Check Valve stuck open.
Loose electrical connections.
Paint spray on internal motor
paris.
Possible defective motor.
Fuse blown, circuit breaker
tripped.
Pressure release valve on pres-
sure switch has not unloaded
head pressure.
Let motor cool off and overicad switch will auto-
matically reset.
Motor will start automatically when tank pressure
drops below “cut-in” pressure of pressure switch.
Check for proper gauge wire and cord length.
Remove and clean or replace.
Check wiring connection inside pressure switch
and terminal box area.
Have checked at Sears Service Center. Do not
operate the compressor in the paint spray area.
See flammable vapor warning on page 3.
Have checked at a local Sears Service Center.
1. Check fuse box for blown fuse and replace if
necessary. Re-set circuit breaker. Do not use a
fuse or circuit breaker with higher rating than that
specified for your particular branch circuit.
2. Check for proper fuse; only “Fusetron” type T
fuses are acceptable.
3. Check for low voltage conditions and/or proper
extension cord.
4. Disconnect the other electical appliances from
circuit or operate the compessor on its own branch
circuit.
Bieed the line by pushing the lever on the pressure
switch to the “Off” position; if the valve does not
open, replace it.
Regulator knob - continu-
ous air leak. Regulator will
not shut-off at air outlet.
Dirty or damaged regulator inter-
nal paris.
Clean or replace regulator, or internal parts.
11
AIR COMPRESSOR DIAGRAM
See page 14 and 15
for compressor/motor
parts breakdown.
KEY
NO.
tele
A» O do tin
PART NUMBER
LA-1995
LA-1997
LA-2015
LA-1779
САС-1140
LA-1996
SS-655-ZN
CAC-4300
CAC-1121
LA-1994-1
SSF-928
TA-4138-1
TA-4137-1
STD541437
CAC-1106
CAC-60
SSF-981-ZN
LA-1810-1
SUDL-6-1
LA-1978
CAC-1087
LA-1535
CAC-4290
SSP-7813
CAC-333-1
SEN-8001
CAC-1120
SSP-7821
CAC-1083-1
C-GA-345
55-2072
SS-2071
H-2099
CAC-4296
SS-3222-CD
CAC-365
TIA-4125
SUDL-403-1
CAC-4220-1
LA-1531-1
CAC-1085
STD575025
STD575026
SSP-9013
SSP-6088
CAC-4215-1
SSW-7367
KK-4315
PARTS LIST
DESCRIPTION
Model No. Label (Model No. 919.153111)
Model No. Label (Model No. 919.153011)
Maintenance Label
Hot Surface Label
Shroud — front
Performance Label
Hex Nut 74-20 (2 used)
Rear shroud assembly (includes 2 ea. #7A)
Shroud Bracket (2 used)
Advanced tech. Label
Screw (2 used)
Air Tank (Model No. 919.153011)
Air Tank ASME (Model! No. 919.153111)
Nut 34"-16 (2 used)
Wheel (2 used)
Shoulder bolt 3-16 x 214" (2 used)
Screw Ya" AB x 34" long (2 used)
Sears Craftsman Label
Rubber foot strip
Drain Tank Label
Handie (black finish)
Warning Label
Check valve
Nut sleeve assembly (for % O.D. Tube)
Shroud Plate
Ratchet Fastener (2 used)
Silicone sleeve
Nut (torque 60-70 in. Ibs.)
Qutlet tube
Pressure Gauge (2 used)
Nipple (% NPT x 172" long)
Nipple (44" NPT x 112" long
Adapter
Regulator
Pipe plug 74” NPT
Manifold
Safety valve
Cord assembly — line
Pressure switch
On-Off Label
Pressure relief tube (warm tube before installing on #42.)
Nut (For 117 O.D. Tube)
Ferrule (For 4" O.D. Tube)
Tube insert
Barbed fitting
Cord assembly — motor
Strain relief (2 used)
Pressure release vaive and mounting nut (included with #36)
13
COMPRESSOR PUMP DIAGRAM
POSITION LOCATING
MARK TOWARDS MOTOR.
55
14
PARTS LIST
KEY
NO. PART NUMBER DESCRIPTION
46 CAC-260-2 Air Filter
47 CAC-1046 intake muffler
48 SSF-990 Screw 14” - 20 x 171” (2 used, torque 7-10 ft. 165.)
49 CAC-1067-U-1 Head
50 SSF-6640 Stud 14-20 x 171” (2 used, torque 7-10 ft. ibs.)
51 CAC-1066 Gasket
52 CAC-4281-1 Valve plate assembly (includes valves, restrictors & screws)
53 SSG-8156 O-ring
y 54 — Connecting rod assembly (torque screw 30-35 in. Ibs.)
Y 55 — Cylinder sleeve (position locating mark towards motor)
56 C-MO-3005 Motor 1 HP
57 CAC-1023 Eccentric/Fiywheel
58 SSF-2043 Screw (eccentric/flywheel, torque 50-60 in. ibs.)
59 CAC-1055 Fan
60 SSF-3101 Screw #10-24 x 3" long (torque 30-35 in. ibs.)
61 SST-3025 Bearing (eccentric)
NOT ILLUSTRATED
H-5796 Air Hose assembly (44"I.D. x 15")
9-16269 Air Chuck
S1-30-07-50 Owners Manual
y Key 54 855 Can only be purchased as part of KK-4835 connecting rod kit
15
SEARS
OWNERS
MANUAL
SERVICE
MODEL NO.
919.153011
919.153111
HOW TO ORDER
REPAIR PARTS
S1-30-07-50 2/90
CRAFTSMAN
PERMANENTLY LUBRICATED
AIR COMPRESSOR
Now that you have purchased your Sears Air Compressor, should a
need ever exist for repair parts or service, simply contact any Sears
Service Center and most Sears, Roebuck and Co. stores. Be sure
to provide all pertinent facts when you call or visit.
The model number of your Sears Air Compressoris 919. …
This number can be found on the label which is located on the back
of the shroud.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION:
* PART NUMBER « PART DESCRIPTION
» MODEL NUMBER * NAME OF ITEM
All parts listed may be ordered from any Sears Service Center and
most Sears stores.
If the parts you need are not stocked locally, your order will be elec-
tronically transmitted to a Sears Repair Parts Distribution Center for
handling.
Sears, Roebuck and Co., Chicago, IL 60684 U.S.A.
Printed in U.S.A.