CRAFTSMAN Air Compressor Manual L9120135

User Manual: CRAFTSMAN CRAFTSMAN Air compressor Manual CRAFTSMAN Air compressor Owner's Manual, CRAFTSMAN Air compressor installation guides

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SEARS

CRAFTSMAN

Model No.

919.727360

IMPORTANT:

Read the Safety Guidelines

and All Instructions Carefully

Before Operating

OWNERS MANUAL FOR

CRAFTSMAN

PERMANENTLY LUBRICATED

TANK MOUNTED

AIR COMPRESSOR

SAFETY GUIDELINES

ASSEMBLY

OPERATION

MAINTENANCE

TROUBLESHOOTING

REPAIR PARTS

Record in the spaces provided.

(1) The Model Number can be found on the

maintenance label on top of the motor

shroud or on the bar code label on the

rear of air tank.

(2) The Date Code Number can be found

on the bar code label on the rear of the

air tank.

(3) The Serial Number can be found on the

bar code label on the rear of the tank.

(4) The Tank Registration Number is

located on the metal data plate which is

welded onto the backside of the air

tank. (This data plate is painted the

same color as the tank.)

Retain these numbers for future reference.

Model No

Serial No

Date Code

Tank Registration No

MGP-727360 9/20/99

Sold by Sears Canada, Inc., Toronto, Ont. M5B 2B8

TABLE OF CONTENTS

Page

WAR RANTY ............................................................ 2

SAFETY GUIDELINES-DEFINITIONS ...................... 2

SAFETY GUIDELINES ............................................. 3

Page

Lubrication and Oil ............................................ 8

Grounding Instructions ..................................... 8

Voltage and Circuit Protection .......................... 9

Extension Cords ............................................... 9

Break-in Procedure ........................................... 9

IMPORTANT SAFETY INSTRUCTIONS ................... 3 OPERATING PROCEDURES ................................. 10

GENERAL INFORMATION ....................................... 6

GLOSSARY ............................................................. 6

SPECIFICATION CHART ......................................... 6

DESCRIPTION OF OPERATION .............................. 7

TOOLS NEEDED FOR ASSEMBLY ......................... 7

ASSEMBLY .............................................................. 8

INSTALLATION AND BREAK-IN PROCEDURES ..... 8

Location of Air Compressor .............................. 8

MAINTENANCE ..................................................... 11

Air Filter - Inspection and Replacement .......... 11

Check Valve -Replacement ............................. 11

Safety Valve - Inspection ................................ 1t

Motor .............................................................. 11

Storage ........................................................... 11

TROUBLESHOOTING GUIDE ............... ................ 12

AIR COMPRESSOR DIAGRAM ............................. 13

COMPRESSOR PUMP DIAGRAM ........................ 15

HOW TO ORDER REPAIR PARTS ......................... 20

FULL ONE YEAR WARRANTY ON 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 THROUGHOUT CANADA 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

(90) from the date of purchase.

This Craftsman Air Compressor warranty gives you specific legal rights and you may have other rights

which vary from province to province.

Sears Canada, Inc., Toronto, Ont. M5B 2B8 ......... _ 1

SAFETY GUIDELINES -DEFINITIONS-----'

This manua_ contains information that is important for you to know and understand. This information retates to protecting

YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this informat ,

symbots to the right. Please read the manual and pay attention to these sections. ............

_o_

DANGER indicates an imminently hazardous situation which, if

not avoided, will result in death or serious inlay.

WARNING indicates a potentially hazardous situation which, if

not avoided, could result in death of serio si "u .

CAUTION indicates a potentially hazardous situation which, if

not avoided, _ result in mjnor or moderate iniur_.

CAUTION used without the safety alert symbol indicates a

potentially hazardous situation which, if not avoided, _ result

np_j_d_Ldam_g._

IMPORTANT SAFETY INSTRUCTIONS

IMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT IN SERIOUS INJURY AND PROPERTY DAM-

AGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUCTIONS BEFORE USING THIS EQUIPMENT.

HAZARD

RISK OF EXPLOSION OR FIRE

WHAT CAN HAPPEN

IT IS NORMAL FOR ELECTRICAL CONTACTS WITHIN THE

MOTORAND PRESSURESWITCHTO SPARK.

IF ELECTRICAL SPARKS FROM COMPRESSOR COME INTO

CONTACT WITH FLAMMABLE VAPORS, THEY MAY IGNITE,

CAUSING FIRE OR EXPLOSION.

RESTRICTING ANY OF THE COMPRESSOR VENTILATION

OPENINGS WILL CAUSE SERIOUS OVERHEATING AND COULD

CAUSE FIRE.

COMBUSTIBLE MATERIALS WHICH COME INTO CONTACT WITH

HOT ENGINE PARTS CAN BECOME IGNITED.

UNATTEN DED OPERATION OF THIS PRODUCT COULD RESULT

IN PERSONAL INJURY OR PROPERTY DAMAGE.

HOWTOPREVENTIT

ALWAYS OPERATE THE COMPRESSOR IN AWELL VENTILATED

AREA FREE OF COMBUSTIBLE MATERIALS, GASOLINE OR

SOLVENT VAPORS.

IFSPRAYING FLAMMABLE MATERIALS. LOCATE COMPRESSOR

AT LEAST 20 FEET AWAY FROM SPRAY AREA. AN ADDITIONAL

LENGTH OF HOSE MAY BE REQUIRED.

STORE FLAMMABLE MATERIALS IN A SECURE LOCATION

AWAY FROM COMPRESSOR.

NEVER PLACE OBJECTS AGAINST OR ON TOP OF

COM PRESSOR. OPERATE COMPRESSOR INAN OPEN AREA AT

LEAST 12 INCHES AWAY FROM ANY WALL OR OBSTRUCTION

THAT WOULD RESTRICT THE FLOW OF FRESH AIR TO THE

VENTILATION OPENINGS.

ADD FUEL OUTDOORS iN A WELL VENTILATED AREA MAKE

SURE THERE ARE NO SOURCES OF IGNITION, SUCH AS

CIGARE]q-ES NEAR REFUELING LOCATION.

OPERATE COMPRESSOR 1N A CLEAN, DRY, WELL VENTILATED

AREA A MINIMUM OF FOUR FEET FROM ANY BUILDING, OBJECT

OR WALL. DO NOT OPERATE UNIT INDOORS OR IN ANY CON-

FINED AREA.

ALWAYS REMAIN IN ATTENDANCE WITH THE PRODUCT

WHEN IT IS OPERATING.

RISKOF BURSTING [ _

AIR TANK: THE FOLLOWING CONDITIONS COULD LEAD TO A WEAKENING OF THE TANK, AND RESULT IN A

VIOLENT TANK EXPLOSION AND COULD CAUSE PROPERTY DAMAGE OR SERIOUS INJURY.

WHAT CAN HAPPEN

1. FAILURE TO PROPERLY DRAIN CONDENSED WATER

FROM THE TANK, CAUSING RUST AND THINNING OF THE

STEEL TANK.

2. MODIFICATIONS OR A]q-EMPTED REPAIRS TO THE TANK.

3. UNAUTHORIZED MODIFICATIONS TO THE UNLOADER

VALVE, SAFETY VALVE, OR ANY OTHER COMPONENTS

WHICH CONTROL TANK PRESSURE.

4. EXCESSIVE VIBRATION CAN WEAKEN THE AIR TANK AND

CAUSE RUPTURE OR EXPLOSION. EXCESSIVE

VIBRATION WILL OCCUR IF THE COMPRESSOR IS NOT

PROPERLY MOUNTED OR IF THE ENGINE OPERATES

ABOVE RECOMMENDED RPM

ATTACHMENTS & ACCESSORIES:

EXCEEDING THE PRESSURE RATING OF AIR TOOLS, SPRAY

GUNS, AIR OPERATED ACCESSORIES, TIRES AND OTHER

INFLATABLES CAN CAUSE THEM TO EXPLODE OR FLY APART.

AND COULD RESULT IN SERIOUS INJURY

HOWTO PREVENT IT

DRAIN TANK DALLY OR AFTER EACH USE. IF TANK DEVELOPS A

LEAK, REPLACE IT IMMEDIATELY WITH A NEW TANK OR REPLACE

THE ENTIRE COMPESSOR,

NEVER DRILL INTO, WELD, OR MAKE ANY MODIFICATIONS TO

THE TANK OR ITS ATFACHMENTS.

THE TANK IS DESIGNED TO WITHSTAND SPECIFIC OPERATING

PRESSURES. NEVER MAKE ADJUSTMENTS OR PARTS

SUBSTITUTIONS TO ALTER THE FACTORY SET OPERATING

PRESSURES.

DO NOT REMOVE THE STIFFENER BAR CONNECTING THE

COMPRESSOR PUMP TO THE ENGINE, EXCEPT TO ADJUST BELT

TENSION, THEN SECURELY TIGHTEN THE STIFFNER BAR NUTS.

THIS BAR CONTROLS OUTFIT VIBRATION.

FOR ESSENTIAL CONTROL OF AIR PRESSURE, YOU MUST INSTALL

A PRESSURE REGULATOR AND PRESSURE GAUGE TO THE AIR

OUTLET OF YOUR COMPRESSOR. FOLLOW THE EQUIPMENT

MANUFACTURERS RECOMMENDATION AND NEVER EXCEED THE

MAXIMUM ALLOWABLE PRESSURE RATING OF ATrACHMENTS.

NEVER USE COMPRESSOR TO INFLATE SMALL LOW-PRESSURE

OBJECTS SUCH AS CHILDREN'S TOYS, FOOTBALLS, BASKET-

BALLS. ETC.

RISK FROM FLYING OBJECTS

WHAT CAN HAPPEN

THE COMPRESSED AIR STREAM CAN CAUSE SOFT TISSUE

DAMAGE TO EXPOSED SKIN AND CAN PROPEL DIRT, CHIPS,

LOOSE PARTICLES AND SMALL OBJECTS AT HIGH SPEED.

RESULTING IN PROPERTY DAMAGE OR PERSONAL INJURY

HOWTO PREVENT IT

ALWAYS WEAR ANSI Z87.1 APPROVED SAFETY GLASSES WITH

SIDE SHIELDS WHEN USING THE COMPRESSOR.

NEVER POINT ANY NOZZLE OR SPRAYER TOWARD ANY PART OF

THE BODY OR AT OTHER PEOPLE OR ANIMALS.

ALWAYS TURN THE COMPRESSOR OFF AND BLEED PRESSURE

FROM THE AIR HOSE AND TANK BEFORE ATTEMPTING

MAINTENANCE, ATTACHING TOOLS OR ACCESSORIES.

RISK TO BREATHING

WHAT CAN HAPPEN

THE COMPRESSED AIR FROM YOUR COMPRESSOR IS NOT SAFE

FOR BREATHING! THE AIR STREAM MAY CONTAIN CARBON

MONOXIDE, TOXIC VAPORS OR SCUD PARTICLES FROM THE

TANK.

SPRAYED MATERIALS SUCH AS PAINT, PAINT SOLVENTS, PAINT

REMOVER, INSECTICIDES, WEED KILLERS, CONTAIN HARMFUL

VAPORS AND POISONS.

HOWTO PREVENT IT

ALWAYS OPERATE AIR COMPRESSOR OUTSIDE IN A CLEAN,

WELL VENTILATED AREA. AVOID ENCLOSED AREAS SUCH AS

GARAGES, BASEMENTS, STORAGE SHEDS, WHICH LACK A

STEADY EXCHANGE OF AIR. KEEP CHILDREN, PETS AND OTHERS

AWAY FROM AREA OF OPERATION

NEVER INHALE AIR FROM THE COMPRESSOR EITHER DIRECTLY

OR FROM A BREATHING DEVICE CONNECTED TO THE

COMPRESSOR.

WORK IN AN AREA WITH GOOD CROSS-VENTILATION. READ

AND FOLLOW THE SAFETY INSTRUCTIONS PROVIDED ON THE

LABEL OR SAFETY DATA SHEETS FOR THE MATERIAL YOU ARE

SPRAYING. USE A NIOSH/MSHA APPROVED RESPIRATOR

DESIGNED FOR USE WITH YOUR SPECIFIC APPLICATION

RISK OF ELECTRICAL SHOCK

WHAT CAN HAPPEN

YOUR AIR COMPRESSOR IS POWERED BY ELECTRICITY. LIKE

ANY OTHER ELECTRICALLY POWERED DEVICE, IF IT IS NOT USED

PROPERLY IT MAY CAUSE ELECTRIC SHOCK.

REPAIRS ATTEMPTED BY UNQUALIFIED PERSONNEL CAN

RESULT IN SERIOUS INJURY OR DEATH BY ELECTROCUTION.

ELECTRICAL GROUNDING: FAILURE TO PROVIDE ADEQUATE

GROUNDING TO THIS PRODUCT COULD RESULT IN SERIOUS

INJURY OR DEATH FROM ELECTROCUTION. SEE GROUNDING

.INSTRUCTIONS

HOWTO PREVENT IT

NEVER OPERATE THE COMPRESSOR OUTDOORS WHEN IT IS

RAINING OR IN WET CONDITIONS.

NEVER OPERATE COMPRESSOR WITH COVER COMPONENTS

REMOVED OR DAMAGED.

ANY ELECTRICAL WIRING OR REPAIRS REQUIRED ON THIS

PRODUCT SHOULD BE PERFORMED BY AUTHORIZED SERVICE

CENTER PERSONNEL IN ACCORDANCE WITH NATIONAL AND

LOCAL ELECTRICAL CODES

MAKE CERTAIN THAT THE ELECTRICAL CIRCUIT TO WHICH THE

COMPRESSOR IS CONNECTED PROVIDES PROPER ELECTRICAL

GROUNDING, CORRECT VOLTAGE AND ADEQUATE FUSE

PROTECTION.

RISK FROM MOVING PARTS

WHAT CAN HAPPEN

THE ENGINE CAN START ACCIDENTALLY IF THE FLYWHEEL IS

TURNED BY HAND OR MOVED BY PULLING ON THE STARTER

ROPE

MOVING PARTS SUCH AS THE PULLEY, FLYWHEEL AND BELT CAN

CAUSE SERIOUS INJURY IF THEY COME INTO CONTACT WITH

YOU OR YOUR CLOTHING,

ATTEMPTING TO OPERATE COMPRESSOR WITH DAMAGED OR

MISSING PARTS OR ATTEMPTING TO REPAIR COMPRESSOR

WITH PROTECTIVE SHROUDS REMOVED CAN EXPOSE YOU TO

MOVING PARTS AND CAN RESULT IN SERIOUS INJURY.

HOW TO PREVENT IT

ALWAYS DISCONNECT THE SPARK PLUG AND BLEED PRESSURE

FROM THE TANK BEFORE PERFORMING MAINTENANCE.

NEVER OPERATE THE COM PRESSOR WITH GUARDS OR COVERS

WHICH ARE DAMAGED OR REMOVED.

ANY REPAIRS REQUIRED ON THIS PRODUCT SHOULD RE

PERFORMED BY AUTHORIZED SERVICE CENTER PERSONNEL.

RISK OF BURNS

WHAT CAN HAPPEN

TOUCHING EXPOSED METAL SUCH AS THE COMPRESSOR HEAD

OR OUTLET TUBES OR CONTACT WITH HOT ENGINE PARTS,

SUCH AS THE MUFFLER, CAN RESULT IN SERIOUS BURNS.

THE GASOLINE ENGINE, THE ENGINE MUFFLER, THE COMPRES-

SOR HEAD AND TUBING BECOME VERY HOT DURING OPERATION.

HOWTO PREVENT IT

NEVER TOUCH ANY EXPOSED METAL PARTS ON ENGINE OR

COMPRESSOR DURING OR IMMEDIATELY AFTER OPERATION

ENGINE AND COMPRESSOR WILL REMAIN HOT FOR SEVERAL

MINUTES AFTER OPERATION.

DO NOT REACH AROUND PROTECTIVE SHROUDS OR ATTEMPT

MAINTENANCE UNTIL UNIT HAS BEEN ALLOWED TO COOL

RISK OF FALLING

WHATCANHAPPEN

A PORTABLE COMPRESSOR CAN FALL FROM A TABLE,

WORKBENCH OR ROOF CAUSING DAMAGETO THE COMPRES-

SOR AND COULD RESULTIN SERIOUSINJURY OR DEATH TO

THE OPERATOR.

HOWTO PREVENT IT

ALWAYS OPERATE COMPRESSOR IN A STABLE SECURE

POSITION TO PREVENT ACCIDENTAL MOVEMENT OF THE UNIT.

NEVER OPERATE COMPRESSOR ON A ROOF OR OTHER

ELEVATED POSITION. USE ADDITIONAL AIR HOSE TO REACH

HIGH LOCATIONS.

RISK OF PROPERTY DAMAGE WHEN TRANSPORTING

COIVlPFESSOR

(Fire, Inhalation, Damage to Vehicle Surfaces)

WHAT CAN HAPPEN

FUEL OR OIL CAN LEAK OR SPILL AND COULD RESULT IN FIRE

OR BREATHING HAZARD, SERIOUS INJURY OR DEATH CAN RESULT.

FUEL OR OIL LEAKS WILL DAMAGE CARPET, PAINT OR OTHER SUR-

FACES IN VEHICLES OR TRAILERS.

HOWTO PREVENT IT

IF COMPRESSOR IS EQUIPPED WITH A FUEL SHUT-OFF VALVE,

TURN THE VALVE TO THE OFF POSITION BEFORE TRANSPORT-

ING TO AVOID FUEL LEAKS. IF COMPRESSOR IS NOT EQUIPPED

WITH A FUEL SHUT-OFF VALVE, DRAIN THE FUEL FROM TANK

BEFORE TRANSPORTING TRANSPORT FUEL ONLY IN AN OSHA

APPROVED CONTAINER ALWAYS PLACE COMPRESSOR ON A PRO

TECTIVE MAT WHEN TRANSPORTING TO PROTECT AGAINST DAM-

AGE TO VEHICLE FROM LEAKS. REMOVE COMPRESSOR FROM

VEHICLE IMMEDIATELY UPON ARRIVAL AT YOUR DESTINATION.

$5W.99 -- 8/2/99

GENERAL INFORMATION

You have purchased an air compressor unit consisting of

a one cylinder, single-stage air compressor pump and air

tank. Included are wheels, regulator, gauges, and handle.

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, blow guns, nailers/staplers, air brushes,

and inflator kits. An air pressure regulator is required for

most of the applications.

An inline air filter which removes moisture and dirt from

compressed air should be used where applicable.

An inline regulator can be used if a more precise adjust-

ment of air pressure is needed downstream.

GLOSSARY

CFM: Cubic Feet per Minute.

SCFM: Standard Cubic Feet per Minute; a unit of measure

of air delivery.

PSh Pounds per Square Inch; aunit of measure of pres-

sure.

ASME: American Society of Mechanical Engineers; made,

tested, inspected and registered to meet the standards of

the ASME,

Cut-In Pressure: While the motor is off. air tank pressure

drops as you continue to use your accessory. When the

tank pressure drops to a certain low level and the pressure

switch lever is in "Auto", the motor will restart automati-

cally. The low pressure at which the motor automatically

restarts is called "cut-in pressure."

Cut-Out Pressure: When you turn on your air compressor

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 pres

sure higher than its capacity. The high pressure at which

the motor shuts off is called "cut-out pressure."

CSA: Electrical products sold in Canada are required to be

certified to the applicable CSA standard (s), Canadian Stan-

dards Association (CSA) is a standards writing and safety

testing organization. Products that are CSA certified have

been evaluated and tested and found to meet or exceed

the applicable CSA standard (s) for safety and electrical

performance.

SPECIFICATION CHART

Model No.

Bore

Stroke

Voltage - Single Phase

Minimum Branch Circuit Requirement

Fuse Type

Amperage at Maximum Pressure

Air Tank/Capacity

Approximate Cut-in Pressure

Approximate Cut-out Pressure

SCFM @ 40 psi

SCFM @ 90 psi

919.727360

2 3/8"

1.35"

120

15 amps

Time Delay

15,0

ASME!30 gal. (U.S.)

100

130

7.8

5.5

DESCRIPTION OF OPERATION

Air Compressor Pump: To compress air, the piston moves

up and clown in the cylinder. On the downstroke, air is

drawn in through the air intake valves. The exhaust valves

remain closed, On the upstroke of the piston, air is com-

pressed. The intake valves close and compressed air is

forced out through the exhaust valves, through the outlet

tube, through the check valve and into the air tank.

Check Valve: 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 valve "closes", allowing air pressure to

remain inside the air tank.

Pressure Switch: The pressure switch is fitted with a small

lever. It is labeled "Auto/O" for automatic run or off. In the

"O" position, the motor will not run. In the "Auto" position,

it 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 Io+

cated on the side of the pressure switch is designed to

automatically release compressed air trapped within the

compressor head and outlet tube. This short release of air

wilt occur when the air compressor reaches "cut-out" pres-

sure or the unit is shut off. If the air is not released, the

motor will not be able to start when next required.

Flow Valve: The flow valve allows air to flow from the head

as the motor is getting "up to speed". Once the motor

reaches normal operating speed, the flow valve closes and

the pump begins to compress air, thus requiring less amp

draw on initial start.

Safety Valve: If the pressure switch does not shut off the

air compressor at its cut-out pressure setting, the safety

valve will protect the tank against high pressure by "pop-

ping out" at its factory set pressure (slightly higher than the

pressure switch cut-out setting).

Regulator: The air pressure coming FROM the air tank is

controlled by the regulator. The regulator control knob is a

vibration proof design. Lift the regulator knob to engage

and depress the knob to lock. Turn the regulator knob clock-

wise to increase pressure and counter-clockwise to de-

crease pressure. 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 less

than that desired, then bring up to the desired pressure.

Depending on the air requirements of each )articular ac-

cessory, the outlet regulated air pressure ma, have to be

adjusted while operating the accessory.

Regulator Gauge: The outlet pressure gauge indicates the

air pressure available at the outlet side of the regulator. This

pressure is controlled by the regulator and is always less

than or equal to the tank pressure. See "Operating Proce-

dures".

Tank Pressure Gauge: The tank pressure gauge indicates

the reserve air pressure in the tank.

Cooling System: This compressor contains an advanced

design cooling system. At the heart of this cooling system

is an engineered fan. It is perfectly normal for this fan to

blow air through the vent holes in large amounts. You know

that the cooling system is working when air is being ex-

pelled.

Drain Valve: This valve is located at the bottom of the

tank. To drain accumulated moisture from the tank, pull on

the safety valve until tank pressure is 15 PSI. Unscrew the

drain valve and allow the water to drain.

Tools Needed for Assembly

• a 9/16" socket and an open end wrench for attaching

the wheels

• a 3/8" open end wrench or socket to tighten handle

screws

ASSEMBLY

Installing Wheels, Handles, Rubber

Foot Strip

THE WHEELS AND HANDLE DO NOT

PROVIDE ADEQUATE CLEARANCE,

STABILITY OR SUPPORT FOR

PULLING THE UNIT UP AND DOWN

STAIRS OR STEP& THE UNIT MUST

BE LIFTED, OR PUSHED UP ARAMP.

1. Attach the handle to the compressor saddle by

inserting the handle inside the compressor saddle and

lining up the two bolt holes on each side. Install the

four screws, two on each side. Tighten securely.

2. Install one shoulder bolt and one nut for each wheel.

Tighten securely. The compressor will sit level if the

wheels are properly installed.

3, Clean and dry underside of air tank leg opposite wheels.

Remove the protective paper strip from the adhesive

backed rubber foot strip. Attach the rubber foot strip

to the bottom of leg. Press firmly into place,

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 obstructions

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 fresh

intake and cooling air.

Lubrication and Oil

This unit needs no lubrication or oiling.

Grounding Instructions

RISK OF ELECTRICAL SHOCK. In the

event of a short circuit, grounding

reduces the risk of shock by providing

an escape wire for the electric

current. This air compressor must be

properly grounded.

This portable air compressor is equipped with a cord hav-

ing 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 ordi-

nances. The outlet must have the same configuration as

the plug. DO NOT USE AN ADAPTER.

Inspect the plug and cord before each use. Do not use if

there are signs of damage.

IMPROPER GROUNDING CAN RESULT IN

ELECTRICAL SHOCK.

Do not modify the plug that has been

provided. If it does not fit the available

outlet, the correct outlet should be

installed by a qualified technician.

If repairing or replacing cord or plug, the grounding wire

must be kept separate from the current-carrying wires.

Never connect the grounding wire to a flat blade plug

terminal. The grounding wire has insulation with an outer

surface that is green with or without yellow stripes.

If these grounding instructions are not completely under-

stood, or if in doubt as to whether the compressor is prop-

erly grounded, have the installation checked by a quali-

fied electrician.

120 Volt Models

white

15 AMP PLUG OUTLET

_ _GROUNDED

GR_N_SG J _

Voltage and Circuit Protection

Refer to page 5 (Specification Chart) for the voltage and

circuit protection requirements of your compressor. Use

only a fuse or circuit breaker that is the same rating as the

branch circuit the air compressor is operated on. If the

compressor is connected to a circuit protected by fuses,

use only dual element time delay fuses.

Extension Cords

It is preferable to use extra air hose instead of an exten-

sion cord to avoid voltage drop and power loss to the

motor, and to prevent overheating.

If an extension cord must be used, be sure it is:

12 gauge (AWG) or heavier. (Wire size increases as

gauge number decreases. 10 AWG and 8 AWG may

also be used. DO NOT USE 14 OR 16 AWG.)

a three-wire extension cord that has a three-connec-

tor grounding plug, and a three-slot receptacle that

wi!l accept the plug.

n,: longer than 50 feet

rr] good condition

Break-in Procedure

Serious damage may result if the following

break-in instructions are not closely followed.

This procedure is required only once, before the air com-

pressor is put into service.

1. Set the pressure switch "AUTO/O" lever in the "O"

position for "Off".

2. Plug the power cord into the correct branch circuit

receptacle.

3. Do not attach hose to outlet. Leave the outlet open to

the atmosphere.

4. Turn the regulator clockwise, opening it fully, to

prevent air pressure build-up in the tank.

5. Move the "AUTO/C)" tever to AUTO". The com-

pressor will start,

6. RUN THE COMPRESSOR FOR 15 MINUTES. Make

sure the regulator is open and there is no tank pros-

sure build up.

7. After 15 minutes, close the regulator by turning _t

counterclockwise. The air tank will fill to cut out

pressure and then the motor will stop.

OPERATING PROCEDURES

1. Before attaching air hose or accessories, make sure

the "AUTO/O" lever is set to "O" and the air regulator

is closed.

2. Attach hose and accessories.

TOO MUCH AIR PRESSURE CREATES A

HAZARDOUS RISK OF BURSTING. CARE-

FULLY FOLLOW STEPS 3 AND 5 BELOW

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.

3. Check the manufacturer's maximum pressure rating

for air tools and accessones. The regulator outlet

pressure must never exceed the maximum pressure

rating.

4. Turn the "AUTO/O" 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

compressor 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 "AUTO/O" lever to "O".

8. Turn the regulator counterclockwise and set the

outlet 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 pressure

is approximately 20 psi.

11. Drain water from air tank.

WATER WILL CONDENSE IN THE AIR

TANK. IF NOT DRAINED, WATER WILL

CORRODE AND WEAKEN THE AIR TANK

CAUSING A RISK OF AIR TANK RUP-

TURE.

NOTE:

If drain cock valve is plugged, release

all air pressure. The valve can then be

removed, cleaned, then reinstalled.

12.After the water has been drained, close the drain

valve. The air compressor can now be stored

MAINTENANCE

UNIT CYCLES AUTOMATICALLYWHEN POWER IS ON. WHEN DOING MAINTENANCE, YOU MAY BE

EXPOSED TO VOLTAGESOURCES, COMPRESSEDAIR OR MOVING PARTS.PERSONALINJURIES CAN

OCCUR. BEFORE PERFORMING ANY MAINTENANCE OR REPAIR, UNPLUGTHE COMPRESSORAND

BLEED OFF ALL AIR PRESSURE.

ALL MAINTENANCE AND REPAIR OPERATIONS NOT LISTED MUST BE DONE BY A QUALIFIED SERVICE TECHNICIAN.

Air Filter - Inspection and Replacement Safety Valve -Inspection

Hot surfaces. Risk of burn. Compressor heads

are exposed when filter cover is removed. Allow

compressor to cool prior to servicing.

"_"-_--Filter Retainer

Filter

Keep the air filter clean at all times. Do not operate the com-

pressor 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 filter to

be sure it is clean.

Check Valve Cleaning -Replacement

Risk of personal injury. Manifold assembly con-

tains compressed air which can be hazardous.

Manifold gets hot during operation.

Before servicing:

• Unplug or disconnect electrical supply to

compressor.

•Bleed tank of pressure.

Allow compressor to cool.

1. Release all air pressure from air tank and unplug outfit.

2. Remove shroud. (Key Nos. 1 and 2)

3. Loosen the top and bottom nuts and remove the outlet

tube. (Key Nos. 31, 33, and 34)

4. Remove the pressure release tube, fitting, and connecto[

(Key Nos. 25, 26 and 27)

5. Unscrew the check valve (turn counterclockwise) using a

socket wrench. (Key No. 17)

6. 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 a Teflon based pipe 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.

If the safety valve does not work properly,

over-pressurization may occur, causing air tank

rupture or an explosion. Before starting compres-

sor, 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.

Motor

The motor has an automatic reset thermal overload protector.

If the motor overheats for any reason, the overload protector

will shut off the motor. The motor must be allowed to coot

down before restarting. The compressor will automatically

restart after the motor cools.

If the overload protector shuts the motor off frequently, check

for a possible voltage problem. Low voltage can also be sus-

pected 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.

Storage

Before you store the air compressor, make sure you do the

following:

1. Review the Maintenance and "Operating Procedures"

sections 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

PERFORMING REPAIRS MAY EXPOSE VOLTAGE SOURCES, MOVING PARTS OR COMPRESSED AIR SOURCES.

PERSONAL INJURY MAY OCCUR. PRIOR TO ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR AND

BLEED OFF TANK AIR PRESSURE.

PROBLEM CAUSE CORRECTION

Excessive tank pressure - safety

valve pops off.

Air leaks at fittings or hose.

Air leaks at pressure switch

release valve.

Air leaks in air tank or at air tank

welds.

Pressure switch does not shut off

motor when compressor reaches

cut-out pressure.

Pressure reading on the regulated

pressure gauge drops when an

accessory is used.

Pressure switch cut-out too high.

Tube or hose fittings are not tight

enough.

Defective pressure switch release valve.

Defective or dirty check valve.

Defective air tank.

Air leaks between head and valve Leaking seal.

plate.

It is normal for some pressure drop

to occuE

Move the pressure switch lever to the "O"

position. If the compressor doesn't shut off,

disconnect from the electrical outlet source

and return to a Sears Service Center to re-

place the pressure switch.

Return the compressor to Sears Service Cen-

ter to check and adjust, or replace switch.

Tighten fittings ustng teflon tape where air

can be heard escaping. Check fittings with

soapy water solution. DO NOT OVER-

TIGHTEN.

Return to Sears Service Center for replace-

ment of pressure switch.

Check to see if the pin in the bottom of the

pressure release valve is stuck. If it does not

move freely, return to the Service Center for

replacement of pressure switch.

A defective check valve results in a constant

air leak at the pressure release valve when

there is pressure in the tank and the com-

pressor is shut off. Remove and clean or re-

place check valve. DO NOT OVERTIGHTEN.

Air tank must be replaced. Do not repair the

leak. Return compressor to Sears Service

Center.

DO NOT DRILL INTO, WELD OR OTHER-

WISE MODIFY AIR TANK OR IT WILL

WEAKEN. THE TANK CAN RUPTURE OR

EXPLODE.

Torque head screws to 7-10 ft. Ibs. If this does

not stop leak, replace seal.

If there is an excessive amount of pressure

drop when the accessory is used, adjust the

regulator.

NOTE

Adjust the regulated pressure under flow con-

ditions (while accessory is being used).

Air leak from safety valve. Possible defect in safety vatve. Operate safety valve manually by pul{ing on

ring. If valve still leaks, it should be

replaced.

Knocking noise Defective check valve. Remove and clean, or replace.

TROUBLESHOOTING GUIDE (Continued)

PROBLEM CORRECTION

Compressor is not supplying

enough air to operate acces-

sories.

CAUSE

Compressor is not large enough for

air requirement.

Motor will not run or restart.

Regulator knob continuous air

leak. Regulator will not shut

off at air outlet.

Restricted air intake filter.

Hole in hose.

Check valve restricted.

Air leaks.

Present tank pressure exceeds

pressure switch "cut-in" pressure.

Fuse blown, circuit breaker tripped.

Motor overload protection switch has

tripped.

Possible defective motor or

capactioc

Paint spray on internal motor parts.

Check valve stuck open, putting

pressure on head.

Pressure release valve on pressure

switch has not unloaded head

pressure.

Broken exhaust varve.

Di_y ordamaged regul_orinternal

paKs.

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 any paint spray or drywall

sanding area.

Check and replace if required.

Remove and clean, or replace.

Tighten fittings.

Motor will start automatically when tank pressure

drops below "cut-in" pressure of pressure switch.

1. Check fuse box for blown fuse and replace, if

necessary. Reset 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 Time Delay fuses

ere acceptable.

3. Check for low voltage conditions and/or

proper extension cord.

4. Disconnect the other electrical appliances

from circuit or operate the compressor on its

own branch circuit.

5. Check for loose electrical connections.

Let motor cool off and overload switch will auto-

matically reset.

Return to Sears Service Center for inspection or

replacement, if necessary.

Have compressor checked at Sears Service

Center. Do not operate the compressor in the paint

spray area. See flammable vapor warning.

Remove and c_ean, or replace the check valve.

Bleed the line by pushing the lever on the pressure

switch to the "0" position; if the valve does not

open, replace it.

Inspect and replace if necessary.

Replace regulator.

AIR COMPRESSOR DIAGRAM

52 l

_47

PARTS LIST

KEY

NO. QUANTITY PART NUMBER DESCRIPTION

1 1 CAC-1317 Shroud, Front

2 1 AC-O029 Shroud, Rear

3 1 LA-3143 Label, Performance

4 1 LA-3260 Label, Billboard

5 1 CL-1222 Label, Model Number

6 1 SSF-553-1 Screw #10-24x9/16 Pan HD (Torque 15-35 in./Ibs.)

7 1 SSG-3102 O-ring

x 8 1 CAC-1373 Filter Retainer

x 9 1 CAC-1372 Filter Foam

10 1 AC-0012 Console, Shroud

11 1 CAC-61 Ring Panel Mounting

12 1 AC-0009-1 Gauge RT hand

13 1 AC-0010-1 Gauge LT hand

14 1 AC-0374 Manifold

15 1 SSP-480 Nipple, 1/4 x 2.5"

16 1 LA-2632-1 Label Warning

17 1 AC-0631 Check Valve

18 1 SSP-485 Reducer

19 1 AC-O007 Regulator

22 1 97503734 Safety Valve

23 1 H-2101 Adaptor

24 1 AC-0375 Pressure Switch

26 2 SSP-7811 Nut/Sleeve Assy.

27 1 AC-0028 Pressure Relief Tube

31 1 SSP-7821-1 Nut, Compression (Torque 120-140 in./Ibs.)

32 1 SSG-3105 O-Ring

33 1 SSP-7813 NuVSleeve Assy. (Torque-hand tight plus one turn)

34 1 AC-0097 Outlet Tube

37 1 SUDL-413-2 Cord Assembly

38 2 ACG-18 Cup, Saddle Mount

39 2 91895680 Screw, 1/4_20 x .75 (Torque 9-12 ft./Ibs.)

40 3 ACG-19 Isolator

41 1 TA-4318 Tank - 30 Gal. (U.S.)

42 1 LA-3069 Label, Sears Craftsman

43A 1 LA-2633 Label, Drain Tank (French)

43 1 LA-1978-1 Label, Drain Tank

44 1 SSP-470-1 Hex Reducer Bushing

45 1 SS-2707 Drain Valve

46 1 SUDL-6-1 Strip, Rubber Foot

47 2 CAC-60 Shoulder Bolt

48 2 CAC-4313 Wheel, 10"

49 2 SSF-8080-ZN Nut, Hex 3/8"

50 1 AC-0564 Handle

51 4 SSF-981 Screw

X Key No's. 8 and 9 can be purchased as KK-5041 Muffler/Foam Kit

COMPRESSOR PUMP DIAGRAM

PARTS LIST

KEY

NO.

+"58

•59

+*60

"61

+ *62

+ 63

+"65

QUANTITY

PART NUMBER

MO-9083

AC-0140

AC-0108

SSF-586

SSF-615

AC-0263

ACG-2

DAC-308

ACG-29

SSF-3158-1

SSG-8156

AC-0032

ACG-45

CAC-1371

AC-0037

SSF-927

DAC-161

DESCRIPTION

Motor

Eccentric Bearing Assy.

Fan Kit

Screw 1/4 - 20 (Torque 100-120 in./Ibs.)

Screw (Eccentric, Torque 100-120 in./Ibs.)

Sleeve, Cylinder

Connecting Rod

Compression Ring

Connecting Rod Cap

Screw, #10-24 (Torque 61-70 in./Ibs.)

O-ring

Valve Plate Assy.

O-ring, Head

Muffler

Head

Screw 1/4" - 20 x 1 1/4" (Torque 7-10 ft./Ibs.)

Shim Rolled Edge

NOT ILLUSTRATED

MGP-727360 Owners Manual

ALSO INCLUDED

• H-7040-1

• AC90

• AC100

• AC20

• AC150

• 9-71715

Hose, 3/8" x 25' Long

Quick Connect 1/4" Female (qty 2)

Quick Connect Plug 1/4" Male (qty 2)

Dual Tire Chuck

Blow Gun

Sears Ratchet

• Key No's. 58, 59, 60, 61,62, and 65 can be purchased as KK-4835 Connecting Rod Kit.

+ Key No's 58, 60, 62, 63, and 65 can be purchased as K-0058, Compression Ring Kit.

NOTES

SE_A/R6

CRAFTSMAN

MODEL NO.

SERVICE

HOW TO ORDER

REPAIR PARTS

OWNERS MANUAL FOR

PERMANENTLY LUBRICATED

TANK MOUNTED

AIR COMPRESSOR

The model number of your Sears Air Compressor can be found

on the maintenance rabel on the top of the shroud or on the bar

code label on the rear of the air tank.

SERVICE AND REPAIR PARTS

CALL 1-800-665-4455"

Keep this number handy should you require a service call or

need to order repair parts.

If ordering parts make sure you have the name, make and

model no. of the merchandise and the name and number of

the part you wish to order.

*If calling locally, please use one of the following numbers:

Regina -566-5124 Montreal - 333-5740

Toronto - 744-4900 Halifax - 454-2444

Kitchener - 894-7590 Ottawa - 738-4440

Vancouver - 420-8211

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

electronically transmitted to a Sears Repair Parts Distribution

Center for handling.

Sold By Sears Canada, Inc., Toronto, Ont. MSB 2B8

CRAFTSMAN Air Compressor Manual L9120135

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