Craftsman 919174212 User Manual AIR COMPRESSOR Manuals And Guides L0810281

CRAFTSMAN Air compressor Manual L0810281 CRAFTSMAN Air compressor Owner's Manual, CRAFTSMAN Air compressor installation guides

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ISears]
OWNERS
MANUAL

MODEL NOS.
919.174212
919.174311
919.174320
919.174410

iMPORTANT:
Read the Safety
Guidelines Before
Operating

AiR
COMPRESSOR

DESCRIPTION
ASSEMBLY
OPERATION
MAINTENANCE
REPAIR PARTS

Record in the spaces provided
below the model number, code
number and manufacturers hum=
bet of this air compressor. The
model number can be found on
the label on the front of the air
tank. The code number can be
found on the for label on the rear
of the air tank. The manufacturers
number (ASIVlE Code outfits only)
is located on the metal data plate
on the backside of the air tank.
Model No.
Code No.
Mfgs. No.
Motor Mfg. Name
Motor Mfg. No.
Retain these numbers for
references.

Sears,

Roebuck

and Co., Chicago,

IL 60684 U.S.A.

SI-30-14-2-A

future

2!85

TABLE

WARRANTY

OF CONTENTS

.......................................................

SAFETY GUIDELINES
SPECIFICATION

..............................................

CHART

............................................

GENERAL INFORMATION
GENERAL DESCRIPTION

..........................................
OF OPERATION

ASSEMBLY INSTRUCTIONS

...........................

3
5
6
6

........................................

Tools Needed for Assembly ......................................
Attaching Wheels, Handle, Etc ....................................
installing Regulator .............................................
Start-Up Procedures ............................................

6
6
7
7

OPERATION

.......................................................

Manifold .......................................................
Pressure Switch ................................................
Safety Valve ...................................................
Motor .........................................................
Pressure Release Valve .........................................
MAINTENANCE

....................................................

Replacing Air Intake Filter .......................................
Checking Safety Valve ..........................................
Checking and Changing Oil ......................................
Location of Air Compressor ......................................
Draining Water From Air Tank ...................................
Replacing Belt ..................................................
AIR COMPRESSOR

DIAGRAM

......................................

PARTS LIST
ACCESSORIES

7
7
7
8
8
8
8
8
8
8
9
9
9
10
11

...................................................

TROUBLESHOOTING

GUIDE

...............................................

HOW TO ORDER REPAIR PARTS

........................................

13
14
16

FULL ONE YEAR WARRANTY
AIR COMPRESSOR
if this 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
ninety days from date of purchase.

or rental purposes, the warranty will apply for

This warranty gives you specific legal rights and you may also have other rights which vary
from state to state.

Sears, Roebuck and Co., Sears Tower, Dept. 698/731A, Chicago, IL 60684

SAFETY

GUIDELINES

This manual contains information that is important for you to know and understand.
This information relates to 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 those sections.

iMPORTANT
iNFORMATiON
VENTmNG mNJURY OR LOSS

information
equipment.

for

preventing

FOR PREOF LIFE.

damage

Note
information that you should pay special attention to.

PLEASE

READ

THE

FOLLOWmNG

CHART.

AREA

HAZARD

SAFEGUARDS

indicateswhere a hazard

Indicates what can happen if precautions are not observed.

indicates how to avoid the hazard and what
special protective clothing, equipment, and precautions will be used.

Loose items, or parts of the body
may get caught and cause serious
injuryor damage.

Never operate the compressor with the belt
guard removed.

can

occur.

Moving Parts

Keep small children, your hands, and all items
away from the flywheel and belt.
Unit cycles automatically when
power is ON. During service or
repair activities, this automatic
cycling may cause a hazard.

Always unplug the unit before attempting repair
or maintenance of the compressor. Also, make
sure the pressure is released from the compressor and air tank.

Flammable vapors

A spark from the motor or pressure
switch electrical contacts can ignite
flammable vapors from gasoline or
solvents, and cause an explosion
or fire.

The compressor and any other electrical tool
must only be used in well ventilated areas, free
of gasoline or solvent vapors.

Hot Parts

Air compressors get hot when running. Serious burns may resuk if
touched.

Never touch the compressor, tubing, or motor
during or immediately after operation of the
compressor.

Air Tank

Air pressure or mechanical loads
that are higher than design loads
may cause the tank to rupture.

Do not adjust, remove, or defeat the safety
valve. Check the valve from time to time by pulling the ring on the valve. If the valve is stuck or
does not operate smoothly, it must be replaced.
Do not adjust, remove, or defeat the pressure
switch.
Never use a motor with higher horsepower
ing than the one supplied.

rat-

The compressor
was not designed
to be
powered by a gasoline engine. Do not substitute a gas engine.

Electrical Shock

Changes to the air tank structure
will cause the tank to weaken. Tank
rupture or explosion may occur.

Never drill into, weld, or change the tank in any
way.

This unit is powered by 120 or 240
volts,

Always unplug unit prior to doing any maintenance or repair.
Never use the unit outdoors when it is raining.
Always plug the cord into an electrical outlet
with the specified voltage and adequate fuse
protection.

AREA

HAZARD

SAFEGUARDS

Use of unsuitable solvents

The solvents 1,1,1-Trichlorethane
and Methylene Chloride can
chemically react with aluminum
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 hazard does not affect your compressor
outfit - but it may affect the equipment used
with the outfit. Read the label or data sheet
for the material you intend to spray. Equipment containing aluminum or galvanized
parts that will come in contact with these solvents, and that can contain pressure, must
not be used with these solvents. You must
either change the material, or use only
stainless steel spray equipment.

Toxic Vapors

Compressed air from this unit
may contain poisonous carbon
monoxide.

Never directly inhale the compressed air produced by this unit.

Certain sprayed materials such
as paints, weed killer, sand,
insecticides, etc., may be harmful
if used in a closed area or if
inhaled.

Compressed Air

Compressed air may propel dirt,
metal shavings, etc. and result in
possible injury.

Be certain to read labels when spraying
paints or poisons.
Use a mask or respirator whenever there is a
chance that you might inhale anything that
you are spraying. Read all instructions so
that you know that your mask will protect you
from what you are spraying.
Never point any nozzle or sprayer toward a
person or any part of the body.
Always wear safety goggles or glasses when
spraying.

SPECIFICATION CHART
Model No.
HP
Displacement CFM
Bore
Stroke
Voltage-Single Phase
Minimum Branch Circuit Requirement
*Fuse Type
Amperage at Max. Pressure
Air Tank Capacity
Approximate Cut-in Pressure
Approximate Cut-out Pressure
SCFM at 100 psig
SCFM at 90 psig
SCFM at 40 psig

919.174212
919.174311
919.174410
919.174320
1
1
1
2
8.8
8.8
8.8
9.2
23/4"
23/4"
23/4''
23/4''
2"
2"
2"
2"
1!0-120
110-120
!10-120
220-240
20 amp
20 amp
20 amp
15 amp
"Fusetron" Type T "Fusetron" Type T "Fusetron" Type T "Fusetron" Type T
18.2
18.2
18.2
9.9
12 gal.
12 gal. (ASME)
!2 gal. (ASME)
20 gal. (ASME)
75 psig
75 psig
80 psig
80 psig
100 psig
100 psig
100 psig
100 psig
5.1
5.1
5.1
5.6
5.3
5.3
5.3
6.1
6.6
6.6
6.6
Z5

SCFM (Standard Cubic Feet per Minute): Unit of measure of air delivery.
SLM (Standard Liters per Minute): Metric unit of measure of air delivery.
PSIG (Pounds per Square Inch Gauge): Unit of measure of pressure.
kPa (Kilo Pascals): Metric unit of measure of pressure.
*A circuit breaker is acceptable.

THIS MANUAL IS DESIGNED TO MAKE iT AS EASY AS POSSIBLE
FOR YOU TO SET UP, OPERATE AND MAiNTAiN
YOUR NEW AiR COMPRESSOR
GENERAL iNFORMATiON

ASSEMBLY iNSTRUCTiONS

You have purchased a complete portable compressor
outfit consisting of a 2 cylinder single-stage air
compressor with air tank, air hose assembly, wheels
and handle. You will also find an air chuck and a
helpful "Power Painting With Sprayers" booklet. The
2 horsepower unit has a removable foot extension
bracket which allows for stationary mounting.

Tools Needed For Assembly

These units can be used for operating caulking guns,
grease guns, air brushes, sandblasters, air tools, etc., or
inflating tires and plastic toys, spraying weed killer,
insecticides, etc.
GENERAL

Tools needed are: (1) a 9/_6"socket or open end wrench
for attaching the wheels and hose adapter; and (2) an
adjustable wrench for attaching the pressure regulator,
and (3) a Z/l_"open end wrench for attaching the air
pressure gauge, (4) a 7/_6"socket or open end wrench for
attaching the foot extension bracket (2 hp. unit only), (5)
a 3/_6"hex key for installing the plug in the regulator and
(6) pipe thread sealant.
Attaching Wheels, Handle, Etc.

DESCRIPTION OF OPERATION

To compress air, the pistons move up and down in the
cylinder. On the downstroke, air is drawn in through the
air intake valve. The exhaust valve remains dosed. On
the upstroke of the piston, air iscompressed. The intake
valves close and compressed air is forced out through
the exhaust valve, 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. The air intake opening must be kept clear
of obstructions which could reduce air delivery of the
compressor.

AiR iNTAKE
AND FILTER

X
AIR
COMPRESSOR,.
PUMP

THE

WHEELS

AND

HANDLE

NOT

PROVIDE
ADEQUATE
CLEARANCE,
STABILITY OR SUPPORT
FOR PULLING
THE
UNiT UP OR DOWN STAIRS
AND STEPS.
THE UNiT MUST BE UFTED OR PUSHED UP
A RAMP.
See diagram
on page 10 for attaching
air pressure
regulator (46), wheels (38), foot extension bracket (43)
and handle (47). Refer to the illustration, page 10, Key
No's. 22, 39, 40, 42, 44, 45, 84, 85 and 86.

ON=AUTO/OFF
SAFETY
VALVE

RESET BUTTON
OiL FiLL
PLUG
OiL DRAIN
PLUG

REGULATOR

AiR OUTLET
CONNECTION

DRAIN COCK VALVE
(NOT SHOWN)

it may be necessary to brace or support one
end of the outfit when attaching the wheels
and the foot extension bracket because the

outfit will have a tendency to tip over before
wheels are attached.
insert the handle into pockets under the tank base.
Put one set screw (22) through hole in one side of
tank base and tighten down on handle.
Remove the protective paper strip from the adhesive
backed rubber foot strip (45). Attach the rubber foot
strip to the bottom of the foot extension bracket (43)
or tank leg. Press firmly into place.
Attach foot extension bracket (43) to the air tank bracket. Use one cap screw (44), one Iockwasher (87) and
one hex nut (42) at each end. Tighten. (Model
919.174320 only)
Attach one wheel (38) to each side of the outfit. Use
one shoulder bolt (39) and one locking hex nut (40)
for each wheel. Tighten securely. Use the bracket
lower bolt hole for attaching the wheels on model
919.174320.
iNSTALLiNG REGULATOR
Install the regulator (48) on the end of the manifold
(28) using the short pipe nip#e (84). The arrow must
point away from the manifold in order for the regulator
to function properly. Next, install the gauge (85),
adapter (86) and plug in the regulator. The plug is
supplied with the regulator. (Note: Use a small
amount of pipe thread sealant on all pipe thread
joints.) Refer to Figure 2.
MANIFOLD

REGULATED
PRESSURE GAUGE

ADAPTER

crankcase, the oil flows into it very slowly. If the oil is
added too quickly, it will overflow and appear to be
full. (Crankcase oil capacity is 16fluid ounces.) Under
winter-type conditions use SAE 10W oil. Multiviscosity oil (10W 30) may be used but will result in
carbon deposits on critical components and reduce
performance and compressor life. Replace oil fill plug
(50). Plug the compressor into the correct power
source. Start the compressor by switching the ONAUTO/OFF switch (20) to the ON-AUTO position.
Open the regulator (46) by turning knob clockwise
fully to permit air to escape and prevent air pressure
buildup in the air tank. RUN THE COMPRESSOR 30
MINUTES iN THiS MANNER TO LUBRICATE PISTONS AND BEARINGS. Shut off air with regulator
(turn knob counterclockwise) and let the unit pump up
to cut-off pressure. Turn the switch to "OFF" and
check the oil level; add oil if necessary. Turn switch to
"ON" and the unit is ready for use. Connect the air
hose to the air adapter (86) located at the end of the
regulator.Refer to Figure 1.
OPERATION
Manifold
The manifold (28) is located on the top of the unit
between the motor and air compressor pump. On the
manifold is the pressure switch (20), safety valve (29),
regulator (46) and pressure gauge (27). The gauge
shows the air tank pressure. The air pressure coming
from the air tank is controlled by the regulator knob.
Turn the knob clockwise to increase pressure and
counterclockwise to decrease pressure. Refer to Figure 3. To avoid minor readjustment 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 lessthan that desired, then bring up to
the desired pressure. Depending on the air flow
requirements of each particular accessory, the outlet
regulated air pressure might have to be adjusted under
flow conditions.
Pressure Switch

PiPE
NIPPLE

Start-Up

PLUG

Procedures

All units are shipped without oil. Serious
damage may result if the following break=in
instructions are not closely followed. This
operation has to be completed only once
when first putting the unit in service.

PRESSURE LOADS BEYOND DESIGN L_MITS
MAY CAUSE TANK RUPTURE OR EXPLOSION.
PRESSURE SW_TCH OPERATION IS RELATED
TO MOTOR HP, TANK RATmNG AND SAFETY
VALVE
SETTING°
DO NOT ATTEMPT
TO
ADJUST, REMOVE, OR DEFEAT THE PRESo
SURE SWmTCH, OR CHANGE AND MODIFY ANY
PRESSURE CONTROL RELATED DEWCE.

Place unit on a level surface. Remove oil fill plug (50)
and slowly add a special compressor oil such as
Sears 9-16426 or SAE 20-20W SF motor oil until it is

The pressure switch (20) starts the motor when the air
tank pressure drops below the factory set cut-in pressure and stops the motor when the air tank pressure
reaches the factory set cut-off pressure. (See specification chart, page 5.)

even with the top of the oil fill hole. When filling the

Safety Valve

Note

OVER°PRESSURmZATmON
OF THE AiR
TANK MAY CAUSE TANK RUPTURE OR
EXPLOSmONo THE OUTFmT mSPROTECTED
FROM THE OVERoPRESSURJZATION BY A
SAFETY VALVE.
DO NOT ELIMINATE,
MAKE ADJUSTMENTS
OR SUBSTiTUTiONS TO THiS DEVICE.

Avoid using long extension cords. They can
cause a power loss to the motor. Add extra air
hose instead of extension cords.
If an extension cord must be used, follow the recommendations listed below using a 3-wire extension cord.
Cord Length
0-50 Feet

Minimum Wire Size
12 gauge

Pressure Release Valve
TANK

{Models 919.174410 & 919.174320 Only)
The pressure release valve located on the bottom of the
pressure switch is designed to unload air from the compressor head automatically at unit shut off. This protects
the motor from starting against air pressure remaining in
the compressor head and tubing. When the motor stops
running, air will be heard escaping from the valve for a
few seconds. When the motor is running, no air should
be leaking from the pressure release valve.
Note
Models 919.174212& 919.174311are designed to
operate without this unloading feature.
MAINTENANCE
Replacing

Air intake Filter

Figure 3
The pressure switch (20) is pre-set to shut off the motor
automatically at the maximum operating pressure. If the
pressure switch does not shut off the outfit at its cut-off
pressure setting, the safety valve will protect against
high pressure by popping at its pre-set pressure.
Motor

The motor has a thermal overload protector, tf the motor
overheats for any reason, the overload protector will
shut off the motor. The motor must be allowed to cool
before restarting. Turn the ON-AUTO/OFF switch to the
OFF position. To restart, turn the ON-AUTO/OFF switch
to the ON position. Depress the reset button located on
the end of the motor. Refer to Figure 1.
Note
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.

A dirty air intake filter will not allow the compressor to
operate at full capacity. When the intake filter becomes
dirty, oily, or covered with paint overspray, replace it. Do
not operate the compressor with the air intake filter
removed. To replace the filter, use needle nosed pliers
and pull or pry the old filter out. Replace with new. Refer
to Figure 1.
Checking Safety Valve

OVER-PRESSUR_ZATmON
CAUSING
TANK
RUPTURE
OR EXPLOSmON MAY OCCUR JF
THE SAFETY
VALVE
DOES NOT WORK
PROPERLY.
OCCASIONALLY
PULL THE
R_NG ON THE SAFETY
VALVE
TO MAKE
SURE
THAT
THE
VALVE
OPERATES
FREELY, mFTHE VALVE IS STUCK OR DOES
NOT OPERATE
REPLACED.

SMOOTHLY,

Checking and Changing

IT MUST

Oil

2. Fuses blow out when starting motor.
3. Lights dim and remain dim when motor is
started.
8

Overfilling
with oil will cause premature
compressor failure. Do not overfill.

Checkoillevelinthecrankcase
beforeeachuse.Theoil
levelshouldbeevenwiththetopofthefirlholeandmust
notbeallowedtobelowerthan3/8"fromthetopatany
time.itis recommended
thattheoilinthebase(51)be
changed
afterevery100hoursofoperation.
Todrainthe
oil,remove
theoildrainplug(50)andcollecttheoilina
suitablecontainer.
Besureto replacetheplugsecurely
beforeaddingnewoil.Useaspecialcompressor
oiJ,such
as Sears9-16426
or SAE20-20WSFmotoroil (crankcaseoilcapacity
is 16fluidounces).
Underextreme
winterconditions
use10weightoil.

Replacing

SERIOUS
INJURY
OR DAMAGE
MAY
OCCUR mFPARTS OF THE BODY OR LOOSE
ITEMS GET CAUGHT
mN MOVmNG PARTS.
NEVER OPERATE
THE OUTFmT WITH THE
BELT
GUARD
REMOVED.
THE
BELT
GUARD
SHOULD
BE REMOVED
ONLY
WHEN
THE
POWER
CORD
JS
DISCONNECTED.

Location of Air Compressor
Locate the unit in a dry, clean, cool and well ventilated
area. The compressor crankcase and head are designed
with fins which allow for proper cooling. Clean or blow off
fins and any other parts of the compressor that collect
dust or dirt. A dean compressor runs cooler and provides
longer service. Do not place rags, containers or other
matedal on or against the belt guard which wouJd obstruct
ventilation openings necessary for proper compressor
operating temperature, ff humidity is high, a Sears air filter
can be used to remove excessive moisture. Follow the
instructions
packaged with the air filter for proper
installation.

Draining Water From Air Tank

[
/

Belt

The motor is mounted on an adjustable motor base. By
loosening the wing nut (25), the motor can be tilted in to
allow for easy tightening or removal of the belt (73).

To replace belt:
1. Unplug unit from power source before repairing.
2. Remove screws (1) from the back of the belt guard.
Remove belt guard (2).
3. Loosen wing nut (25) and tilt motor in.
4. Remove belt and replace with new.

WARNING

WATER WmLL CONDENSE
mN THE AmR
TANK. IF NOT DRAmNED, THE WATER W_LL
CORRODE
AND WEAKEN
THE TANK.
DRAIN
THE TANK
AS iNSTRUCTED
BELOW.
Water should be drained from the air tank weekly depending on where and how often the outfit has been used. If
humidity is high, drain more often. To drain the water that
has gathered in the air tank, open drain cock valve (41,
page 10) and allow to drain. When empty, close the valve
tightly before operating the compressor.

Note
The belt should be centered over the grooves
on the flywheel and motor pulley.
5_

Push the motor back into regular position and tighten
wing nut securely by hand. Proper tension is approximately 1/4" belt deflection measured midway between the pulley and flywheel when a 3 pound weight
or equivalent finger pressure is applied at this point.
A loose belt will squeal at unit start-up.

6. Replace belt guard (2) and screws (1).

Note
if drain cock valve is clogged, release air
pressure in the air tank and then remove.
Clean and reinstall the valve.

Air Compressor

1
65_t_

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Craftsman 919174212 User Manual AIR COMPRESSOR Manuals And Guides L0810281

CRAFTSMAN Air compressor Manual L0810281 CRAFTSMAN Air compressor Owner's Manual, CRAFTSMAN Air compressor installation guides

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