Craftsman 921.166380 Owner's Manual

Mode_ No. 921.166380

Before using this product,
read this manual and follow

at! its Safety Runes and
Operating instructions.

• Safety instructions
installation & Operation

_, Maintenance & Storage
_, Troubleshooting Guide

Parts List

_, Espa_ol, p. 10

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

Www.sea rs. COrn

08/11/2006

Part No. E101586

Table of Contents

Page

Warranty .............................................................. See Belo_

Safety SymboUs .......................................................... 1

Umportant Safety Unstructions & Guidelines ..................................... 1

Specifications ............................................................ 2

GUossary ................................................................ 2

Duty Cycle .............................................................. 2

Parts & Features ......................................................... 3

UnstaHation& AssemMy .................................................... 4

Operating Procedures ..................................................... 5

Detaching Unit from Dolly .................................................. 6

Maintenance ............................................................. 6

Storage ................................................................ 6

Troubleshooting Guide ..................................................... 7

Exploded View ........................................................... 8

Parts List ............................................................... 9

Espa_ol ................................................................ 10

ONE YEAR FULL WARRANTY ON CRAFTSMAN AIR COMPRESSOR

Ufthis Craftsman Air Compressor falls due to manufacturer's defects in materiaUor workmanship

within one year of the date of purchase, RETURN UTTO THE NEAREST SEARS STORE OR

SERVUCE CENTER UNTHE UNUTED STATES and it wHUbe repUaced or repaired (at our option),

free of charge,

Ufthis Air Compressor is used for commerciaU or rentaUpurposes, this warranty applies for onUy90

days from the date of purchase, This warranty gives you specific legal rights and you may also

have other rights which vary from state to state,

Sears, Roebuck and Co., Dept. 817WA,

Hoffman Estates, IL 60179

Safety Symbols

The information listed below should be read and understood by the operator, This information is given to protect the

user while operating and storing the air compressor, We utilize the symbols below to allow the reader to recognize important
information about their safety,

indicates an imminently hazardous situation which, if not

avoided, wiii result in death or serious injury,

indicates a potentially hazardous situation which, if not

avoided, could result in death or serious injury

indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury,

When used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may
result in property damage,

mmportant Safety mnstructions and Guidelines

_,Save aH instructions WARNING: This product contains one or more chemicals

known to the State of California to cause cancer and birth

defects or other reproductive harm,

Wash hands after handling.

improper operation or maintenance of this product could result in serious injury and/or property damage, Read and

understand all of the warnings and safety instructions provided before using this equipment,

Risk of Moving Parts

Risk of Burns

Risk of Falling

i

Risk from Flying Objects

The air compressor should be operated on a dedicated 15 amp circuit, if the circuit does
not have 15 free amps available, a larger circuit must be used, Always use more air
hose before utilizing extension cords, All extension cords used must be 12 gauge with a
maximum length of 25 ft, The circuit fuse type must be a time delay, Low voltage could
cause damage to the motor,

if the air compressor is in operation, all guards and covers should be attached or
installed correctly, if any guard or cover has been damaged, do not operate the
equipment until the proper personnel has correctly repaired the equipment, The power
cord should be free of any moving parts, twisting and/or crimping while in use and while
in storage,

There are surfaces on your air compressor that while in operation and thereafter can
cause serious burns if touched, The equipment should be allowed time to cool before
any maintenance is attempted, items such as the compressor pump and the outlet tube
are normally hot during and after operation,

Operation of the air compressor should always be in a position that is stable, Never use
the air compressor on a rooftop or elevated position that could allow the unit to fall or
be tipped over, Use additional air hose for elevated jobs,

Always wear ANSi Z87,1 approved safety glasses with side shields when the air
compressor is in use, Turn off the air compressor and drain the air tank before
performing any type of maintenance or disassembly of the hoses or fittings, Never point
any nozzle or sprayer toward any part of the body or at other people or animals,

important Safety instructions & Guide/ines

Risk of Breathing

i

Risk of

E_ectrica_ Shock

Risk of

E×p_osion or Fire

Risk of Bursting

Avoid using the air compressor in confined areas, Always have adequate space
(12 inches) on all sides of the air compressor, Also keep children, pets, and others out of
the area of operation, This air compressor does not provide breathable air for anyone or
any auxiliary breathing device, Spraying material wiii always need to be in another area
away from the air compressor to not allow intake air to damage the air compressor filter,

Never utilize the air compressor in the rain or wet conditions, Any electrical issues or

repairs should be performed by authorized personnel such as an electrician and should
comply with all national and local electrical codes, The air compressor should also have
the proper three prong grounding plug, correct voltage, and adequate fuse protection,

Never operate the compressor near combustible materials, gasoline or solvent vapors,

if spraying flammable materials, locate the air compressor at bast 20 feet away from the
spray area, Never operate the air compressor indoors or in a confined area,

Always drain the air compressor tank daily or after each use, if the tank develops a leak,
then replace the air compressor, Never use the air compressor after a leak has been
found or try to make any modifications to the tank, Never modify the air compressor's

factory settings which control the tank pressure or any other function,

Specifications

Pump .......................... Oil-lube direct drive Air Tank Capacity ......................... 4 Gallons

Motor ........................... 1,0 HP (induction)

Bore ....................................... 1,65"

Stroke ...................................... 1,26"

Voltage Single Phase ....................... 120 VAC

Minimum Circuit Requirement ................ 15 Amps

Cutqn Pressure ............................. 95 PSi

Cut-out Pressure ........................... 125 PSi

SCFM @ 90 PSi ................................ 2,4

Oil Capacity ......................... 90 mL or 3 oz,

Oil Type ........................ SAE 30 Non-detergent

Glossary

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

for air delivery,

PSI¢: Pounds per square inch gauge; a unit of measure

for pressure,
ASME: American Society of Mechanical Engineers,
California Code: Unit may comply with California Code

462 (I) (2)/(M) (2),
Cut-In Pressure: The air compressor wiii automatically

start to refill the tank when the pressure drops

below the prescribed minimum,

Cut-Out Pressure: The point at which the motor stops

when the tank has reached maximum air

pressure,

Code Certification: Products that bear one or more of

the following marks: UL, ULc, ETL CSA, have

been evaluated by OSHA-certified independent
safety laboratories and meet the applicable
Underwriters Laboratories Standards for Safety,

Duty Cycle

This is a 50% duty cycle air compressor,
could damage the air compressor,

Do not run the air compressor more than 30 minutes of one hour, Doing so

Parts & Features

See figures below for reference.

f

Regulator Gauge

indicates the outgoing air pressure to the tool and is

controlled by the regulator.

Chock Valve

When the pump is not in operation the valve closes to

retain air pressure inside the tank. An internal

component.

Tank Pressure Gauge

indicates the reserve air pressure in the tank.

Outlet Tube

Tank Safety Valve

Used to allow excess tank pressure to escape into
the atmosphere. This valve should only open when
the tank pressure is above the maximum rated
pressure.

Pressure Switch

This controls the power to the motor and also the
cutdn/cut-out pressure settings. This switch serves as
the Auto-On/Off positions for the unit.

Pressure Belbf Valve

The pressure relief valve located on the side of the
pressure switch, is designed to automatically

release compressed air when the air compressor

reaches cut-out pressure. The released air should
only escape momentarily and the valve should then

close,

Pressure Relief Tube

Regulator

The air pressure coming from the air tank is controlled
by the regulator, To increase the pressure turn the
knob clockwise and to decrease the pressure turn the
knob counterclockwise,

Quick Connect

Offers a quick release feature for
attaching and removing the air hose.

J
J
I

I Tank Drain Valve e!

Used to drain condensation from the air tank.

Located at bottom of tank.

Air Intake Fitter

Provides clean air to the pump and must always be
kept free of debris. Check on a daily basis or before

each use.

mnsta ation & Assembly

The air compressor should be turned off, unplugged from
the power source, the air bled from the tank and the unit
allowed time to cool before any maintenance is performed,

Personal injuries could occur from moving parts, electrical
sources, compressed air or hot surfaces, The quick
connect assembly must be attached before use, Failure
to assemble correctly could result in leaks and possible
injury, if unsure of assembly instructions or you experience
difficulty in the assembly please call your local service
department for further instruction,

all local codes and ordinances, Check with a qualified

electrician or service personnel if these instructions are not

completely understood or if in doubt as to whether the tool

is properly grounded,

Grounding Pin

Grounded

Outlet

AssembJy

1, Remove air compressor, handle assembly, hardware,

oil bottle, intake filter, manual and accessories from
the styrofoam,

2, Remove the plastic plug from the compressor intake

port, (see diagram below)

8, Install the filter in the compressor intake port,

(see diagram below)

4, Remove the oil fiii cap from the crankcase and fiii until

the oil reaches the top of the red dot in the sight glass,

Oil capacity is 3 oz, (seebe!ow)Use SAE-30 non-deter
gent (API CG/CD heavy duty motor oil), Under extreme
cold weather conditions, 32 ° F (0°C) or below, use

SAE-10 weight oil,

5, Replace the oil cap,
6, Attach the handle to the frame with the saddle bolts

from the outside of the handle and the knobs on the

inside,

Estimated Assembly Time: Approximately 5 minutes

Getting Started - Location of the Air Compressor
The air compressor should always be located in a dean,
dry and well ventilated environment, The unit should have
at minimum, 12 inches of space on each side, The air filter
intake should be free of any debris or obstructions,
Check the air filter on a daily basis to make sure it is dean
and in working order,

improper installation of the grounding plug wiii result in a
risk of electric shock, if repair or replacement of the cord

or plug is necessary, do not connect the grounding wire to

either fiat blade terminal, The wire with insulation having an
outer surface that is green with or without yellow stripes is
the grounding wire, Check with a qualified electrician or

serviceman if the grounding instructions are not completely

understood, or if in doubt as to whether the product is

properly grounded, Do not modify the plug provided,

if it wiii not fit the outlet, have the proper outlet installed

by a qualified electrician,

This product is for use on a circuit having a nominal rating
of 120 volts and is factory-equipped with a specific electric
cord and plug to permit connection to a proper electric
circuit, Make sure the product is connected to an outlet

having the same configuration as the plug, An adapter

should not be used with this product, if the product must

be reconnected for use on a different type of electric circuit,
qualified service personnel should make the reconnection,

Extension Cords

Use only a 3-wire extension cord that has a 3-blade
grounding plug and a 3-slot receptacle that will accept the

plug on the product, Make sure your extension cord is in
good condition, When using an extension cord, be sure to

use one heavy enough to carry the current your product will
draw, Cords must not exceed 25 feet and No, 12 AWG size

must be used, An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating,

Grounding instructions
This product should be grounded, in the event of an electrical
short circuit, grounding reduces the risk of electric shock by
providing an escape wire for the electric current,
This product is equipped with a cord having a grounding
wire with an appropriate grounding plug, (See the figure at
top right corner,) The plug must be plugged into an outlet
that is properly installed and grounded in accordance with

Break in Procedures

No break in procedure is required by the user,
This product is factory tested to ensure proper operation and