Craftsman 919.17673g, 919.17683, 919.176730, 919.176830 User Manual
S_FA/RS
OWNERS
MANUAL
MODEL NO.
919.17673g
919.17683
aMPORTANT:
Read the Safety Guidelines
and AH instructions
Carefully Before Operating
CRAFTSMAN AiR COMPRESSOR
Record in the spaces provided.
(1) The model number which can be
found on the tabel on the rear of the
air tank.
(2) The code number which can be
found on the foil tabel on the rear of
the air tank.
(3) The Manufacturers Number
(MFG.,.) {ASME Code Compres-
sors onty) is located on the metst
date plate which is welded onto the
backside of the air tank. (This data
plate is painted the same cotor as the
tank.)
(4) The Motor Manufacturers name
which is mocated on the motor tabel
or specification plate.
(5) The Motor Mfg. number- atso
_ocsted on the motor _abel or specifF
cation plate,
Retain these numbers for future
ASSEMBLY
OPERATION
MAINTENANCE
REPAIR PARTS
reference.
Model No
Code No .............................................................
Mfg. No,
SI-30-14-4-D 6/89
Motor Mfg. Name
Motor Mfg. No
Sears, Roebuck and Coo, Chicago, IL 60684 U.S.A.
TABLE OF CONTENTS
Page
.................................................................. 3
SAFETY GU_DEUNES ........................................................ 3
WARNING CHART ............................................................. 3
SPECIFICATION CHART ...................................................... 5
GLOSSARY .................................................................... 5
ACCESSORIES FOR USE WiTH SEARS AIR COMPRESSORS ............. ¢
GENERAL mNFORMATHON .................................................... 6
DESCRIPTION OF OPERATION .............................................. 6
ASSEMBLY _NSTRUCTNONS .................................................. 7
Items You Witt Need to Assemble Your Compressor ................................ 7
Installing Handle .............................................................. 7
Installing Rubber Foot Strip and Wheels .......................................... 8
hstalling Tank Pressure Gauges ................................................. 8
Installing Regulator ............................................................ 8
9NSTALLATmON AND BREAKqN PROCEDURES ............................. 8
Location of Air Compressor ..................................................... 8
Extension Cords .............................................................. 8
Lubrication and Oil ............................................................ 8
Grounding hstructions ......................................................... 9
Break-in Procedures ........................................................... 9
OPERATING PROCEDURES ................................................ 9
MAINTENANCE .............................................................. lo
Air Filter - Inspection and Replacement .......................................... 10
Oil - Checking and Changing ................................................... 10
Check Valve - Replacement .................................................... 10
Safety Valve - Inspection ....................................................... 10
Motor ........................................................................ 10
Belt - Replacement ............................................................ 11
Pulley and Flywheel - Alignment ............................................... 11
STORAGE ................................................................... 11
TROUBLESHOOTING GUIDE ................................................. 11
A_R COMPRESSOR DIAGRAM ............................................... 14
Parts List .................................................................... 16
COMPRESSOR PUMP DIAGRAM ............................................ 15
Parts List .................................................................... ! 7
HOW TO ORDER REPAIR PARTS ............................................ 18
FULL ONE YEAR WARRANTY
ON COMPRESSORS
if this air compressor fans 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 wiii repair it, free of charge.
If this air compressor is used for commercial or rental purposes, the warranty wit! apply for ninety days
from the date of purchase_
This warranty gives you specific legal rights and you may have other rights that vary from state to
state.
Sears, Roebuck and COo, Sears Tower, Dept. 698/7131OR=W, Chicago, IL 60684
SAFETY GUiDELiNES
This manual contains informationthat is important for you to know and understand. This information
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 special attention to
sections headed by these symbols.
URGENT SAFETY _NFORMATNON- A
HAZARD THNr W_LL CAUSE SEmOUS
_NJURY OR LOSS OF LIFE
Information for preventing damage to
equipment.
HAZARDS CAN OCCUR _FEQUIPMENT IS NOT USED PROPERLY:
PLEASE READ THE FOLLOWING CHART,
WHAT TO WHAT COULD HAPPEN HOW TO PREVENT mT
LOOK FOR
Unsuitable
Sobvents
Electricity
The solvents 1,1,1- Trichlorethane 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 it may
affect the equipment being used.
Your air compressor is powered by electricity. Always unplug the air compressor prior to mainte-
Like any other electrically powered device, if it is nance or repair.
not used properly it can cause electrical shock. Never use the air compressor outdoors when it is
IMPORTANT SAFETY _NFORMATION .- A
HAZARD THAT M_GHT CAUSE SERIOUS
INJURY OR LOSS OF LIFE,
NOTE
information that you should pay special atten-
tion to.
If the material you intend to spray contains the sol-
vents listedat left (read the labei or data sheet), do
not usa accessories that contain aluminum or gal-
vanized parts. You must either change the material
you intend to spray, or usa only stainless steel
spray equipment.
Always plug the cord into an electrical outlet with
the specified voltage and adequate fuse
3
WHATTO
LOOK FOR WHAT COULD HAPPEN NOW TO PREVENT }T
Hot Parts The compressor head and tubes get hot when Never touch the air compressor head or tubes dar-
the air compressor is running. Ifyou touch them, ing or immediately after operation.
you can be seriously burned.
Flammable It is normal for the motor's electrical contacts to Operate the compressor in well ventiIated areas
Vapors spark when the compressor starts or stops. A thatarefreeofgasotine, flammablepaintorsoivent
spark can ignite flammable vapors from vapors.
gasoline, flammable paints or solvents and if spaying a flammable material - provide ample
cause a fire or explosion.
Compressed Air Compressed air can propel dust, dirt or loose Never point any nozzle orsprayer toward a person
particles it comes in contact with. or any part of the body.
Too much air pressure applied to air tools or
accessories can cause damage or risk of
bursting.
Moving
Parts
Toxic 'Vapors
Air Tank
4
This compressor cycles automatically when the
switch is in the "On-Auto" position. If you
attempt repair or maintenance while the com-
pressor is operating, or with the switch in the
"On-Auto" position, you can expose yourself to
moving parts. These moving parts can cause
serious injury or damage, if they come into con-
tact with you or your clothing.
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 harmfu!
if you inhale them.
Modifications to the air compressor can cause
the air tank to rupture or explode.
Changing the air tank wi!! cause it to weaken.
The tank can rupture or exptode.
ventilation. Never spray in a closed area. There
must be a flow of fresh ad at alt times.
Always wear safety goggles or glasses when using
the air compressor.
Always turn the air compressor off and release air
pressure from hose before attaching or removing
accessories.
Check the manufacturer's maximum pressure rat-
ing for air tools and accessories. Regulator outiet
pressure must never exceed the maximum pres-
sure rating.
Always unplug the unit and release air pressure
from the tank and any accessories before doing
repair or maintenance.
Never operate the compressor with the belt guard
removed.
Never directly inhale the compressed air produced
by this unit.
Read labels and safety data for all materials you
spray. Follow alI safety precautions.
Use a mask or respirator if there is a chance of
inhating toxic sprayed materials. Masks and
respirators have timits 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.
Do not adjust, remove or tamper with the safety
vatve or pressure switch. If safety valve or pressure
switch replacement is necessary, a part with the
same pressure rating must be used.
For service replacement use only the motors, pul-
leys and belts designed as standard service
replacement parts as indicated in the parts list.
Use of improper parts could cause overloading of
your unit and electrical supply.
Do not substitute agas engine for the motor.., this
compressor was not designed to be powered by a
gasoline engine.
Never replace the compressor pump with a differ_
ent model
Never increase the compressor pump speed.
Never drilt into, weld, or in any way modify the air
tank. Do not repair a leaking tank, it must be
replaced.
Never replace the air tank with a different model or
a larger tank.
SPEC_FICATION CHART
Modem No. 919.176730 9t&176830
Horsepower 3 3
Displacement CFM 11.3 11.3
Bore 2%" 2%"
Stroke 2" 2"
Voltage-Single Phase !20/240"* 120/240"*
Minimum Branch Circuit Requirement !5 amp*** 15 amp***
*Fuse Type Fusetron Fusetron
Air Tank Capacity -Galfons 20 20 ASME
Approximate Cut-in Pressure 80 80
Approximate Cut-out Pressure 100 100
SCFM {u 40 psig 8.8 8.8
SCFM (_., 90 psig Z7 7.7
SCFM (t_ 100 psig 7.3 7.3
U.L Listed Yes Yes
**These models have dual voltage motors, !20 and 240 volt. They are WIRED FOR 120 VOLT but can be converted to 240
volt operation. Instructions for 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).
Type "T" Type "T"
These air compressors can be operated on
a 15 amp circuit if:
1. Vomtage suppmyto circuit is normat.
2o Circuit is not used to supply any other
electrical needs (lights, appliances, etc°}
3. Extension cords comply with specifica-
tions in owners manual
When converting this model to 240 volt opera=
rice, the attached three-prong 120 vo_t pJug
must be replaced with a three-prong 240 volt
p_ug (purchase locally) or order line cord Part
No, SUDL-4044.
GLOSSARY
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of meas-
ure of air delivery.
PSIG: 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: Underwriter Laboratories; Samples of
compressor outfits, taken from production, were sub-
mitted to U.L and found to comply with their require-
ments for design and performance
4. Circuit is equipped with 15 amp circuit
breaker or 15 amp Fusetron Type"T" time
demayfuse.
If any of the above conditions cannot be met, or if opera-
tion of the compressor repeatedly causes interruptionof
the power it may be necessary to operate it from a 20
amp circuit. It is not necessary to change the cordset if
this change is required.
Cut4n Pressure: While the motor is off, air tank pres-
sure drops as you continua to use your accessory. When
the tank pressure drops to a certain iow level the motor
wif! re-start automatically. The low pressure at which the
motor automatically re-starts is caIled "cut-in pressure,"
Cut-Out Pressure: When you turn on your air compres-
sor 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 pres-
sure at which the motor shuts off is called "cut-out
pressure."
5
ACCESSORIES FOR USE WiTH SEARS COMPRESSORS
The following accessories are available through the current general sales catalog or at fuliqJne Sears stores.
,SPRAY GUNS
°BLOW GUNS
oAIRCAULKING GUNS
oAIR POWERED WASHER GUNS
,SAND BLASTERS
°AIR BRUSHES
oAIR LINE FILTERS
oTIRE AIR CHUCKS
.PAINT TANKS
oAIRTANKS
•INFLATOR KITS
oQUICK CONNECTOR SETS
(various sizes)
oVISCOSIMETER
,AIR PRESSURE REGULATORS
oOIL FOG LUBRICATORS
,AIR TOOLS:
Sanders
Drills
Impact wrenches
Hammers
,AIR HOSE:
1/4", 5/16" OR 3/8" LD.
in various lengths.
GENERAL
You have purchased an air compressor unit consisting of
a 2 cylinder, single stage air compressor pump, an air
tank, air hose, wheels, handte, air chuck and associated
controls.
Your air compressor can be used for operating paint
spray guns, air tools, caulking guns, grease guns, air
brushes, sandblasters, power washers, inflating tires
and plastic toys, spraying weed killers, insecticides, etc.
An air line filter is usually required for removal of mois-
ture and oil vapor in compressed air when a paint spray
gun is used.
iNFORMATiON
An in-line lubricator is usually required for air tools to
prolong toot life.
Separate air transformers which combine the functions
of air regulation and/or moisture and dirt removal should
be used where applicable.
These accessories can be purchased from most Sears
stores or through the Sears General catatog or Power
Toot catalog.
VALVE
VALVE
Air Compressor Pump: To compress air, the pistons
move up and down in the cylinders. On the downstroke,
air is drawn in through the air intake filter and then
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 air is forced
out through the exhaust valve, through the outlet tube,
through the check vatve and into the air tank. Working air
is not available until the compressor has raised air tank
pressure above that required at the air outlet.
Check Vatve: When the air compressor is operating, the
check valve is "open", allowing compressed air to enter
the air tank. When the air compressor reaches "cut-out"
pressure, the check vaIve "closes", aJlowing air pressure
to remain inside the air tank.
)RAIN
VALVE
Pressure Remeaee 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 release& the motor wilt try to start, but will be unable
to. The pressure release vatve allows the motor to re-
start freely. When the motor stops running, air wilt be
heard escaping from the valve for a few seconds. No air
should be heard leaking from the valve when the motor is
running.
Safety Valve:tfthe pressure switch does not shut off the
air compressor at or near its cut-out pressure setting, the
safety valve will protect against high pressure by "pop-
ping out" at its factory-.set pressure (slightJy higher than
the pressure switch cut-out setting).
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