Craftsman MG1-OILFREE Owner's Manual

SEARS

CRAFTSMAN

NOTE: For identificationof Repair

Parts, see separate Parts List
Manual.

IMPORTANT:

Read the Safety Guidelines
and All Instructions

Carefully Before Operating

GENERAL MANUAL FOR

PERMANENTLY LUBRICATED

TANK MOUNTED

AIR COMPRESSOR

SAFETY GUIDELINES

i

iASSEMBLY
;rOPERATION

i MAINTENANCE

iTROUBLESHOOTING

i REPAIR PARTS

Record in the spaces provided.
(1) The model number which can be

found on the maintenance label on
the top of the motor cover or on the

tank.

(2) The code number which can be

found on the small bar code label on
the rear of the air tank.

(3) The Manufacturers Number is lo-

cated 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.

Code No.

Mfg. No.

I MG1-OILFREE 9/17/941

Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

TABLE OF CONTENTS

Page

WARRANTY ............................................................................................................................... 2

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

WARNING CHART ...................................................................................................................... 3

GLOSSARY ............................................................................................................................... 5

ACCESSORIES FOR USE WITH SEARS AIR COMPRESSORS ................................................. 5

GENERAL INFORMATION .......................................................................................................... 5

DESCRIPTION OF OPERATION .................................................................................................. 6

ASSEMBLY ............................................................................................................................... 7

INSTALLATION AND BREAK-IN PROCEDURES ......................................................................... 7

Location of Air Compressor ................................................................................................... 7

Lubrication and Oil ................................................................................................................ 7

Extension Cords ................................................................................................................... 7

Voltage and Circuit Protection ............................................................................................... 7

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

Break-in Procedure ............................................................................................................... 8

OPERATING PROCEDURES ...................................................................................................... 9

MAINTENANCE ......................................................................................................................... 10

Air Filter- Inspection and Replacement ................................................................................ 10

CheckValve-Replacement .................................................................................................. 10

Safety Valve - Inspection ...................................................................................................... 10

Motor .................................................................................................................................. 10

Storage ............................................................................................................................... 10

TROUBLESHOOTING GUIDE ..................................................................................................... 11

HOWTO ORDER REPAIR PARTS ............................................................................................. 16

FULL ONE YEAR WARRANTY ON AIR COMPRESSORS

Ifthis 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., Hoffman Estates, IL 60179 U.S.A.

SAFETY GUIDELINES

This manual contains information that is important foryou to know and understand. This information relatesto 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.

IMPORTANT SAFETY INFORMATION -
A HAZARD THAT MIGHT CAUSE
SERIOUS INJURY OR LOSS OF LIFE.

Information for preventing damage to

equipment.

NOTE

Information that you should pay special

attention to.

HAZARDS CAN OCCUR IF EQUIPMENT IS NOT USED PROPERLY.

PLEASE READ THE FOLLOWING CHART.

WHAT TO
LOOK FOR WHAT COULD HAPPEN HOW TO PREVENT IT

Hot Parts

Flammable

Vapors

Air Tank

The metal compressor components such as mani-
fold, tubes, etc. become hot when the air compressor
is running. If you touch them, you may be seriously

burned.

It is normal for the motor and pressure switch to spark

when compressor starts or stops. A spark can ignite
vapors from gasoline or solvents, causing a fire or
explosion.

Modifications to air compressor components in an
attempt to reach higher air pressure can cause the air

tank to rupture or explode.

Incompatabitity between tank and compressor will
cause the tank to rupture.

Modifications to the air tank will cause it to weaken.

Avoid contact with metal components of the compres-
sor during or immediately after operation. Reaching

under or removing portions of the plastic enclosures
such as the console cover exposes hot surfaces.
Allow compressor to cool prior to servicing.

If spraying a flammable material, provide ample ven-

tilation. Never spray in a closed area. There must be

a flow of fresh air at all times.

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.

Do not adjust, remove or tamper with the safety valve
or pressure switch. If safety valve or pressure switch

replacement is necessary, a part with the same rat-

ings must be used.
Never replace the air tank with a different model or a

larger tank. Return to Authorized Service Center if
replacement is required.

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

The tank may rupture or explode. If leaks develop due
to corrosion or tank is damaged, return to Authorized

Service Center for replacement.

SAFETY GUIDELINES

WHATTO
LOOK FOR

Compressed

Air

Electricity

Toxic Vapors

Unsuitable
Solvents

WHATCOULD HAPPEN

Compressad air can propel dust, dirt or loose par-
ticles it comes in contact with. These propelled par-

ticles may cause serious injury or damage.

Too much air pressure applied to air tools or acces-
sories can cause damage or risk of bursting.

Your air compressor is powered by electricity. Like
any other electdca;_y powered device, if it is not used
properly it may cause electrical shock.

It is normal for compressed air to contain toxic or
irritatingvapors. Such vapors are harmful if inhaled.

Certain materials you are spraying (like paint, weed
killer, sand or insecticide) can be harmful if you inhale

them.

The solvents 1,!,1 - Trichloroethane 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 galva-

nized components and cause corrosion and weaken-

ing of parts. This does not affect your air compressor

- but it may affect the equipment being used.

HOWTO PREVENT IT

Never point any nozzle or sprayer toward a person or
any part of the body.

Always wear safety goggles or glasses when using
the air compressor.

Always turn the air compressor off before attaching

or removing accessories.

Check the manufacturer's pressure rating for air
tools and accessories. Regulator outlet pressure
must never exceed the maximum pressure rating.

Always unplug the air compressor prior to mainte-

nance or repair.

Never use the air compressor outdoors when it is
raining.

Always plug the cord into an electrical outlet with the
specified voltage and adequate fuse protection.

Never directly inhale the compressed air produced by

this unit.

Read labels and safety data for all materials you spray.
Follow all safety precautions.

Use a mask or respirator if there is a chance of inhaling
toxic sprayed materials. Masks and respirators have
limits and will only provide protection against some
kinds and limited amounts of toxic material. Read
mask and respirator instructions 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 intend to spray contains the solvents
listed at left (read the label or data sheet), do not use
accessories that contain aluminum or galvanized
parts. You must either change the material you intend
to spray, or use only stainless steel spray equipment.

GLOSSARY

CFM: Cubicfeet perminute,

SCFM: Standard cubic feet per minute; a unit of measure

ofairdelivery.

PSIG: Pounds per square inchgauge; aunit of measure of
pressure.

ASME: Amedcan Society of Mechanical Engineers; made,

tested, inspected and registered to meet the standards of

the ASME.

U.L. Listed: This product is Listed by Underwriters

Laboratories, Inc. (UL). Samples ofthis product have been
evaluated by UL and meet applicable UL Standards for
Safety.

Cut-In Pressure: While the motor is off, airtank pressure
drops as you continue to use your accessory. When the
tank pressure drops to a certain low level the motor will

restart automatically. The low pressure at which the motor
automatically re-starts is called "cut-in pressure."

Cut-Out Pressure: When you turn onyour aircompressor
and it begins to run, air pressure in the air tank begins to

build. It buildsto a certain high pressure before the motor
automatically shuts off - protecting your air tank from

pressure higher than its capacity. The high pressure at

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

ACCESSORIES FOR USE WITH

SEARS AIR COMPRESSORS

•SPRAY GUNS

,BLOWGUNS

•AIR CAULKING GUNS

•PNEUMATIC POWER
WASHERS

.SANDBLASTERS

•AIR BRUSHES

•AIR LINE FILTERS
"TIREAIRCHUCKS
°PAINTTANKS
"AIRTANKS

•INFLATOR KITS

•QUICKCONNECTOR SETS
(various sizes)

.VISCOSIMETER

•AIR PRESSURE REGULATORS

-OIL FOG LUBRICATORS

,AIRTOOLS:

Sanders
Drills

Impact Wrenches

Hammers

.AIRHOSE:

1/4", 5/16" or 3/8" I.D.

in various lengths

•NAILER/STAPLERS
Decking

Farming
Roofing
Siding
Finishing
Carpentry
Upholstery
Picture Framing

•DRAIN CLEANER

-DUSTER GUN

GENERAL INFORMATION

You have purchased an air compressor unit consisting of a
one cylinder, single-stage air compressor pump and air
tank. included are an air hose, tire air chuck, wheels,

regulator, gauges, and handle.

This air compressor requires no oil. Nowyou can enjoy all

the benefits of having anair compressorwithout ever having

to purchase, add or change oil.

Your air compressorcan be used for operating paint spray
guns, air tools, caulking guns, grease guns, air brushes,

sandblaster, or inflating tires and plastic toys, spraying

weed killers, insecticides, etc. An air pressure regulator is

required for most of the applications.

An air filter which removes moisture and dirt from com-
pressed air should be used where applicable.

These accessories can be purchased from most Sears

Parts Departments.