Craftsman 919.156830 User manual

OWNERS
MANUAL
MODEL NO.
919.156730
919.156830
Listed
_721Y
Air
Compressor
IMPORTANT:
Read the Safety Guidelines
and All Instructions
Carefully Before Operating
CRAFTSMAN
PERMANENTLY LUBRICATED
AIR COMPRESSOR
ASSEMBLY
OPERATION
MAINTENANCE
REPAIR PARTS
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 label 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
reference.
Model No.....
Code Noo
Mfg. No.
Sears, Roebuck and Co., Chicago, IL 60684 U.S.A.
S!-30-09-20 4/90

TABLE OF CONTENTS
Page
WARRANTY ........................................................ 3
SAFETY GUIDEUNES ................................................ 3
WARNING CHART .............................................. 3
SPECIFICATION CHART ....................................... 5
GLOSSARY ...................................................... 5
GENERAL INFORMATION .................................................. 6
DESCRIPTION OF OPERATION ................................. 6
ASSEMBLY INSTRUCTIONS ............................................. 7
Tools Needed for Assembly ......................................... 7
Installing Wheels, Wheel Plates, Handle, Rubber foot strip ............ 7
Installing Shut-off Valve .................................................... 7
INSTALLATION AND BREAKqN PROCEDURES ................. 7
Location of Air Compressor .................................... 7
Lubrication and Oil .............................................. 7
Extension Cords ................................................. 7
Grounding Instructions ....................................... 8
Breakqn Procedures ............................................. 8
OPERATING PROCEDURES ................................. 8
MAINTENANCE ........................................................... 9
Air Fiiter ....................................................... 9
Check Valve - Inspection and Replacement ........................... 9
Safety Valve - Inspection ............................................. 9
Motor .................................................................. 9
STORAGE ............................................................. to
TROUBLESHOOTING GUIDE ....................................... lO
AIR COMPRESSOR DIAGRAM ................................... 12
Parts Ust ...................................................... 13
COMPRESSOR PUMP DIAGRAM ....................................... 14
Parts Ust ............................................................ 15
ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS 15
HOW TO ORDER REPAIR PARTS .................................. !6

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 state
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.
Information for preventing damage to
equipment.
IMPORTANT SAFETY INFORMATION - A
HAZARD THAT MIGHT CAUSE SERIOUS
INJURY OR LOSS OF LIFE.
NOTE
information that you should pay special atten-
tion to
WARNING
HAZARDS CAN OCCUR IF EQUIPMENT IS NOT USED PROPERLY.
PLEASE READ THE FOLLOWING CHART,
WHAT TO WHAT COULD HAPPEN HOW TO PREVENT IT
LOOK FOR
The compressor head gets hot when the air Never touch the air compressor head during or
Hot Parts compressor is running. If you touch it, you may immediately after operation
be seriously burned.
Flammable
Vapors Itis normal for the motor and pressure switch to
spark when operating tf the sparks come into
contact with vapors from gasoline, flammable
paints or solvents, they may ignite, causing a
fire or explosion..
Operate the compressor in well ventilated areas
that are free of gasoline, flammable paint or solvent
vapors
tf spraying a flammable material - provide ample
ventilation. Never spray in a closed area There
must be a flow of fresh air at all times

WHAT TO WHAT COULD HAPPEN HOW TO PREVENT IT
LOOK FOR
Air Tank Modifications to the air compressor can cause
the air tank to rupture or explode,
Compressed Air
Electricity
Toxic Vapors
Unsuitable
Solvents
Do not adjust, remove or tamper with the safety
valve or pressure switch Ifsafety 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 tankwith a different model or
a larger tank
Changing the air tank will cause it to weaken Never drill into,weld, or in any way modify the air
The tank may rupture or explode tank
Compressed air can propel dust, dirt, or loose Never point any nozzle or sprayer toward a person
particles itcomes in contact with, or any part of the body
Always wear safety goggles or glasses when using
the air compressor
Atways turn the air compressor off before attach-
ing or removing accessories
Too much air pressure applied to air tools or
accessories can cause damage or risk of
bursting
Your air compressor is powered by electricity_
Like any other electrically powered device, if itis
not used properly itmay cause electrical shock
Check the manufacturer's maximum pressure rat-
ing for' air tools and accessories. An air regulator
must be added for use with those items having a
maximum pressure rating less than 125 PSIo
Always unplug the air compressor prior to mainte-
nance or repair:
Never' use the air compressor outdoors when it is
raining
Atways plug the cord into an electrical outlet with
the specified Vottage and adequat e fuse
protection
It isnormal for compressed air tocontain toxic or Never directly inhale the compressed air produced
irritating vapors. Such vapors are harmful if by this unit,
inhaled.
Certain materials you are spraying (like paint,
weed killer, sand or insecticide) may be harmful
if you inhale them,
Read labels and safety data for all materials you
spray, Follow a!l safety precautions
The solvents 1,1,1- Trichloroethane and Methy-
lene Chloride can chemically react with alumi-
num used in paint spray guns, paint 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 itmay
affect the equipment being used,
Use a mask or respirator if there is a chance of
inhaling toxic sprayed materials, Masks and
respirators have timits and will only provide protec-
tion against some kinds and limited amounts of
toxic mateiaL 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:
Ifthe material you intendtospray contains the sol-
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

SPECIFICATION CHART
Model No.
Horsepower
Displacement CFM
Bore
Stroke
Voltage-Single Phase
Minimum Branch Circuit Requirement
**Fuse Type
Air Tank Capacity
Approximate Cut-in Pressure
Approximate Cut-out Pressure
SCFM @ 40 psig
SCFM @ 90 psig
919:156730 919.156830
3 3
11_8 11.8
2%" 23/8
1.35" 1..35"
120/240 120/240
"15 amps 15 *amps
"Fusetron .... Fusetron"
Type T*** Type T***
15 gaL 15 gaL A..SM.E.
80 80
I00 100
8.5 8,5
70 70
**These models have dual voltage motors, 120 and 240 volt They are WIRED FOR 120 VOLT but can be convereted to 24
volt operation, instructionsfor connecting the motor for operation at 240 volt can be found printed on the inside of the
motor cover or on the nameplate of the motor.
*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, If the air compressor is connected to a circuit protected by fuses, use dual element time
delay fuses (Buss Fusetron Type "T" only)_
These air 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 isequipped with 15amp circuit breaker or 15
amp Fusetron Type "T" time delay fuse.
If any ofthe above conditions cannot be met, or if opera-
tion of the compressor repeatedly causes interruptionof
the poweritmay be necessary to operate it from a 20 amp
circuit.. It is not necessary to change the cordset if this
change isrequired.
When converting this model to 240 volt operation, the
attached three-prong 240 volt plug must be replaced
with a three-prong 240 volt plug (purchase locally) or
order line cord Part No, SUDL-404-1.
GLOSSARY
CFM: Cubic feet per minute
SCFM: Standard cubic feet per minute; a unit of mea-
sure of air delivery
PSlG: Pounds per square inch gauge; a unit of measure
of pressure
ASME: American Society of Mechanical Engineers;
made, tested, inspected and registered to meet the stan-
dards of the ASME
U,L, LISTED: Samples of compressor outfits, taken
from production, were submitted to UL and found to
comply with their requirements for design and
performance
Cut-In Pressure: White the motor is off, air tank pres-
sure drops as you continue to use your accessory When
the tank pressure drops to a certain low level the motor
will re-start automatically The low pressure at which the
motor automatically re-starts is called "cut-in pressure"
Cut-Out Pressures: When you turn on your air com-
pressor and it begins to run, air pressure in the air tank
begins to build It builds to a certain high pressure before
the motor automatically shuts off - protecting your air
tank from pressure higher than its capacity The high
pressure at which the motor shuts off is called "cuFout
pressure",

GENERAL INFORiViATION
You have purchased an air compressor unit consisting of
a 1 cylinder; single-stage air' compressor pump, an air
tank, air hose, wheels, handles, and associated con-
trots_You will also find an air chuck.
This air compressor requires no oil Now you can enjoy
all the benefits of having an air compressor without ever
having to purchase, add or change oil
Your air compressor can be used for operating paint
spray guns, air tools, caulking guns, grease guns, air
brushes, sandblasters, or inflatingtires and plastic toys,
spraying weed killers, insecticides, etc..
This model isnot equipped withapressure regulator:.An
air pressure regulator is usually necessary for most of
these applications
Separate air transformers which combine the functions
of air regulation and/or moisture and dirt removal should
be used where applicable.
DESCRIPTION OF OPERATION
PRESSURE _i .....AIR FILTER
(not shown)
SHUT-OFF
VALVE
GAUGE
VALVE
DRAIN
VALVE
Air Compressor Pump: To compress air, the piston
moves up and down in the cylinder. On the downstroke,
air isdrawn inthroughthe air intake valves The exhaust
valve remainsclosed On the upstroke of the piston, air is
compressed. The intake valves close and compressed
air is forced out through the exhaust valve, through the
outlet tube, throughthe check valve and intothe 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 isoperating, the
check valve is "open", allowing compressed air to enter
the air tank When the air compressor reaches "cut-out"
pressure, the check valve "closes", aiiowing air pressure
to remain inside the air tank
Pressure Switch: The pressure switch automatically
starts the motor when the air tank pressure drops below
the factory set "cut-in" pressure It stops the motor when
the air tank pressure reaches the factory set "cut-out"
pressure
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 head 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 tostart, but wilt be unable
to The pressure release vatve allows the motor to restart
freely When the motor stops running, air will be heard
escaping from the vaIve for a few seconds No air should
be heard leaking when the motor is running.
Safety Valve: If the pressure switch does not shut-off
the air compressor at its cut-out pressure setting, the
safety valve will protect against high pressure by "pop-
ping out" at its pre-set pressure
Tank Pressure Gauge: The tank pressure gauge indi-
catesthe reserve air pressure in the tank_

ASSEMBLY INSTRUCTIONS
Tools Needed for Assembly
•pipe thread sealant (not included)
• a %s" socket or open end wrench for attaching the
wheels, wheel plates and hose adapter
• a 7/1_"open end wrench for attaching the air pressure
gauge
•an adjustable wrench for attaching the shut-off valve
• a %" open end wrench to tighten handle screws,
2. Remove the protective paper strip from the adhesive
backed rubber foot strip Attach the foot strip to the
bottom of the air tank leg. Press firmly into place,
3 Attach a wheel plate to each tank leg. See page 12,
4 Attach one wheel to each side of the air compressor,
Use the top wheel plate hote, Use one shoulder bolt
and one nut for each wheel Tighten securely..
Installing Wheels, Wheel Plates, Handles,
Rubber Foot Strip Installing Shut-off Valve
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 Install the 7!a,,dia handle to the outside of the com-
pressor saddle at the control end of the outfit Line up
holes in handle with saddle holes and install two
screws, one on each side, in the holes farthest from
the handWs end., Slide shrink tubing into position on
the 3/4"dia handle as shown in photo on page 6 or
page 12. Dip in boiling water or use a heat gun to
shrink tubing on handle Stide the small handle inside
of _argehandle and lineup holes Install two remaining
screws and tighten all four screws securely
it may be necessary to brace or support one
end of the outfit when attaching the wheels,
wheel plates, and the rubber foot strip,
because the air compressor will have a
tendency to tip.
SHUT-OFF |
VALVE |
SWIVEL
CONNECTION
ADAPTER
Apply a small amount of pipe sealant (not supplied) to
the tapered pipe threads on the adapter and tighten into
the manifold Instalt the swivel connection end of the
shut-off valve to the straight threaded end of the adapter
(pipe sealant is not required) and tighten this connec-
tion See photo above
INSTALLATION AND BREAK-IN PROCEDURES
Location of the Air Compressor
Locate 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 ishigh aSears air filter can be installedon the
air outlet adapter to remove excessive moisture Follow
the instructions packaged with the air filter for proper
installation,,
Lubrication and Oil
This unit needs no oiling or additional lubrication
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:
•a 3-wire extension cord that has a 3-blade grounding
piug, and a 3-slot receptacfe that wil! accept the plug on
the product
•in good condition
•no longer than 50 feet
• 12 gauge (AWG) or large_ (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
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°
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 foca!
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, tf 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
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.)
ifthese 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
GROU_
120 volts, t5 arnps
Break-ln Procedures
This procedure isrequired only once, before the air com-
pressor is put into service
1 Set the pressureswitch OFF/AUTO lever to the "OFF"
position
2 Plug the power cord into the correct branch circuit
receptacle
3. Turn the shut-off valve counter clockwise, opening it
fully, to prevent air pressure build-up in the tank°
4. Move the OFF/AUTO lever to "AUTO" The compres-
sot will start
5, Run the compressor for 15 minutes Make sure the
shut-off valve is open and there is no tank pressure
build-up.
6. After 15 minutes, close the shut-off valve by turning the
knob clockwise. The air tank will fill to cut-out pressure
and then the motor will stop
OPERATING PROCEDURES
lrBefore attaching air hose or accessories, make sure
the OFF/AUTO lever is set to "OFF" position. Close
the shut-off valve by turning the knob clockwise°
2 Attach hose and accessories.
WARNIN
TOO MUCH AIR PRESSURE CREATES A
HAZARDOUS RISK OF BURSTING. CARE-
FULLY FOLLOW STEPS 3 AND 5 EACH TIME
THE COMPRESSOR IS USED.
Compressed air from the outfit may contain
water condensation. Do not spray unfiltered
air at an item that could be damaged. Some
air operated tools or devices may require
filtered air. Read the instructions for the air
tool or device.
3oCheck the manufacturer's maximum pressure rating
for air tools and accessories The outlet pressure
must never exceed the maximum pressure rating.

4oTurntheOFF/AUTOleverto"AUTO"andallowtank
pressuretobuild°Motorwillstopwhentankpressure
reaches"cut-out"pressure,
5,Opentheshut-offvalve°
6.Alwaysoperatetheaircompressorinwell-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" Iever to "OFF",.
8 CIose the shut-off valve.
91 Remove the air tool or accessory,
10 Open the shut-off valve and allow the air to slowly
bleed from the tank, Close the shut-off valve when
tank pressure is approximately 20 psi
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.
11oWith tank pressure at approximately 20 psL, open
the drain cock and allow moisture to drain_
NOTE
If drain cock valve is plugged, release all 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 Safety Valve - 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 to operate
at full capacity Before you use the compressor, check
the air fitter to be sure it is clean
If it isdirty, simply pull itout You may wash it with a mild
detergent and warm water, or replace it
Check Valve - Replacement
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 IS
STUCK OR DOES NOT OPERATE
SMOOTHLY, IT MUST BE REPLACED WITH
THE SAME TYPE OF VALVE,
1 Release all air pressure from air tank and unplug
outfit
2 Remove shroud
3, Loosen the top and bottom nuts and remove the
outlet tube.,
4, Remove the pressure release tube and fitting,.
5 Unscrew the check valve (turn counterclockwise)
using a socket wrench.
6 Check that the valve disc moves freely inside the
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
Motor
The motor has an automatic reset thermal overload pro-
tector If the motor overheats for any reason, the over-
load protector will shut off the motor, The motor must be
allowed to cool down before restarting The compressor
wilt automaticalty 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:
!_the motor does not get up to full power or speed;
2 fuses blow out when starting the motor; lightsdim and
remain dim when motor is started and is running. 9

STORAGE
Before you store the air compressor, make sure you do
the following:
1, Review the "Maintenance" section on the preceeding
pages and perform maintenance as necessary. Be
sure to drain water from the air tank
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,
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 AIR COMPRESSOR AND BLEED OFF TANK AIR PRESSURE.
PROBLEM CAUSE CORRECTION
Excessive Tank pressure -
safety vafve pops off Pressure switch does not shut off
motor when compressor reaches
"cut-out" pressure
Move the pressure switch lever to the "OFF"
position tf the outfit doesn't shut off, and the
electrical contacts are welded together; replace
the pressure switch,
If 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,.
Air leaks at fittings
Pressure switch "cut-out" too
high.
Tube fittings are not tight enough.
Return the outfit to Sears Service Center to
check and adjust, or replace switch.
Tighten fittings where air can be heard escap-
ing 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 OVERTIGHTEN.
Air leaks at pressure
switch release valve. Defective pressure switch Remove and replace the release valve release valve,
Air leaks in air tank.
Defective check valve
Defective air tank.
A defective CHECK valve results in a constant
air teak at the pressure release valve when there
is pressure in the tank and the compressor is
shut off, Remove and clean or replace check
vafve_DO NOT OVER-TIGHTEN.
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.
Air leaksbetween head and Leaking gasket. Torque head screws to 8 ft lbs if this does not
valve plate, stop leak replace gasket,
10

TROUBLESHOOTING GUIDE (Continued)
PROBLEM CAUSE CORRECTION
Air leak from Safety Valve,, Possible defect in Safety Valve. Operate safety valve manually by pulling on
ring, if valve still leaks, it should be replaced
Knocking Noise, Defective Check Valve. Remove and clean or replace,
Compressor is not supply- Prolonged excessive use of air. Decrease amount of air usage,
ing enough air to operate
accessories
Compressor is not Iarge enough Check the accessory air requirement. If it is
for air requirement higher than the pressure supplied by your air
compressor, you need a larger compressor.
Restricted air intake filter. Clean or replace air intake filter.,Do not operate
the air compressor in the paint spray area,,
Hole in hose, Check and replace if required.
Check Valve restricted Remove and c_eanor replace,
Motor Will Not Run
Air leaks
Motor overload protection switch
has tripped
Tighten Fittings. (See Air Leaks Section of
Troubleshooting Guide.)
Let motor cool off and overload switch will auto-
matically reset
Tank pressure exceeds pressure
switch "cut-in" pressure_ Motor will start automatically when tank pres-
sure drops below "cut-in" pressure of pressure
switch
Wrong gauge wire or length of
extension cord Check for proper gauge wire and cord length
Check Valve stuck open.
Loose electrical connections..
Remove and clean or replace
Check wiring connection inside pressure switch
and terminal box area.
Possible defective capacitor
Paint spray on internal motor
parts.
Return to Sears Service Center for inspection
or replacement if necessary
Have checked at Sears Service Center.. Do not
operate the compressor in the paint spray area
See flammable vapor warning on page 3
Possible defective motor Have checked at a local Sears Service Center
Fuse blown, circuit breaker
tripped 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 andlor prop-
er extension cord.
4 Disconnect the other electrical appliances
from circuit or operate the compressor on its
own branch circuit
Pressure release valve on pres- Bleed the line by pushing the lever on the pres-
sure switch has not unloaded sure switch to the "Off" position; if the valve
head pressure does not open, replace it,
11

AiR COMPRESSOR DIAGRAM
SEE PAGE 14AND 15
FOR COMPRESSOR/MOTOR
PARTS BREAKDOWN. ]
44 45 46
83940
31 3O
28
.,59 16
22
19 54
17
18
12

KEY
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
3O
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
PART NUMBER
LA-2256
LA-2255
LA-1779
CAC-1140
LA-2089
LA-2178
CAC-1121
SS-655-ZN
CAC-1080
LA-2252
CAC-4317
CAC-1099
SSF=505
CAC-1098
TA-4186
TA,o4187
STD541437
CAC-4313
CAC-6O
LA-1811-1
SUDL-6-1
LA_1978
CAC-1087
H-2099
CAC-4284
CAC-4290
SSP-7813
CAC-333-1
SSN-8001
SSP-7821
CAC-1120
CAC-1155
C-GA-345
SS -2072
SS-3222-CD
CAC-365
TIA-4125
SUDL-403-1
CAC-4220-1
LA-1531-1
CAC-1085
STD575025
STD575026
SSP-9013
PARTS LHST
DESCRIPTION
Not used
Model No. Label (Model No, 919,156830)
Model No_ Label (Model No. 919,156730)
Hot Surface Label
Shroud - front
Performance Label
Warning Label
Bracket (2 used - included with #11)
Hex nut 1/4_,20 (2 used)
Tool tray
HoP. Label 3.0 H.P.
Rear shroud assembly (includes 2 ea. #7)
U-Channel isolator
Shoulder screw (2 used)
Isolator (2 used)
Air Tank (Model No, 919.156830)
Air Tank (Model Nor 919.156730)
Nut %"-16 (6 used)
Wheel (2 used)
Shoulder bolt 3/o"-16× 21/4"(2 used)
Sears Craftsman Label
Rubber foot strip
Drain Tank Label
Handle (black finish)
Adapter
Shut-off valve
Not Used
Check valve
3tt
Nut sleeve assembly (for _/80.D. Tube)
Shroud Plate
Ratchet Fastener (2 used)
Nut (Tighten until it stops against head)
Silicone Sleeve
Outlet tube
Pressure Gauge
Not Used
Nipple (%" NPT ×11/2"long)
Not Used
Not Used
Not Used
Pipe plug _/4"NPT
Manifold
Safety valve ASME
Not Used
Cord assembly - line
Pressure switch
On=Off Label
Pressure relief tube (warm tube before installing on #50,)
Nut (for 1/4"O.D. Tube)
Ferrule (for 1/4"OoD.Tube)
Tube insert
13

COMPRESSOR PUMP DIAGRAM
6O 61
__ ..,/_ 65
POSITION LOCATING
) MARK TOWARDS MOTOR,
67
69
74
73
l
72
7O
!4

PARTS LIST
KEY
NO. PART NUMBER
49 SSW-7463
50 SSP-6088
51 CAC-4215-1
52 SSW-7367
53 KK_4315
54 SS-23-CD
55 CAC-1150
56 CAC-260-2
57 CAC;1174
58 CAC-1173
59 SSF-990
60 CAC-1067-U-1
61 SSF-6640
62 CAC-1175
63 CAC-4281
64 SSG-8156
v'65 -
l/66
67 C-MO-3017-1
68 SSW-5394
69 SSF-993
70 CAC-4306
71 SSF-2043
72 SST-3025
73 CAC-1148
74 SSF-3101
DESCRIPTION
Shrink Tubing
Barbed fitting
Cord assembly - motor
Strain relief (2 used)
Pressure release valve and mounting nut (included with #43)
Screw 3/8"-16x 3/4long (4 used)
Wheel extension plate (2 used)
Air Filter _-7 "_,_ _ ~ __
Muffler screen -_-;> ,'__-,_
Intake muffler
Screw 1/4"-20x 11/4"(6 used, torque 7-10 fL Ibs.)
Head
Stud 1/4"-20× 11/4"(2 used, torque 7-10 ft. Ibs.)
Gasket
Valve plate assembly (includes valves, restrictors & screws)
O-ring
Connecting rod assembly (torque screw 30-35 in. Ibs.)
Cylinder sleeve (position locating mark towards motor)
Motor 3-HP
Terminal box cover
Ground screw
Eccentric/Flywheel bearing assy. (includes 1 eao#72)
Screw (eccentric, torque 50-60 in. Ibso)
Bearing (eccentric)
Squirrel cage fan
Screw #10-24 x %" long (torque 30-35 im Ibs_)
NOT ILLUSTRATED
H-5796 Air Hose assembly (1/4"I.D. x15')
9-16269 Air Chuck
SI-30-09-20 Owners Manual
v'Key 65 & 66 Can only be purchased as part of KK-4835 connecting rod kit
ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS
The following accessories are available through the current general sales catalog or at furl-line Sears stores.
•SPRAY GUNS
•BLOW GUNS
• AIR CAULKING GUNS
• AiR POWERED WASHER GUNS
.SANDBLASTERS
•AIR BRUSHES
•AIR LINE FILTERS
•TIRE AIR CHUCKS
• PAINT TANKS
•AIR TANKS
• INFLATER KITS
•QUICK CONNECTOR SETS
(various sizes)
• VISCOSIMETER
•AIR PRESSURE REGULATORS
• OIL FOG LUBRICATORS
•AIR TOOLS:
Sanders
Drills
Impact wrenches
Hammers
• AIR HOSE:
t/4",%6" or 3/8"LD
in various lengths
I5

OWNERS
MANUAL
SERVICE
MODEL NO.
919.156730
919.156830
HOW TO ORDER
REPAIR PARTS
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 Compressor is 919,
This number can be found on the label which is located on the back of
the shroud
WHEN ORDERING REPAIR PARTS, ALWAYS GtVE 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 par ts you need are not stocked locally, your order will be electron-
ically transmitted to a Sears Repair Parts Distribution Center for
handling.
Sears, Roebuck and Co., Chicago, IL 60684 U.S.A.
SI-30-09-20 4/90 Printed in U SA