Craftsman 921.165720 Manuale utente

Owner's Manual

icR. M..i

AiR COMPRESSOR

33-gallon

1.7 HP

Oil-Free, UMC

Model No. 921.165720

CAUTION:

Before using this product, read this

manual and follow all its Safety

Rules and Operating instructions.

•Safety instructions

•Installation & Operation

•Maintenance &Storage

•Troubleshooting Guide

• Parts List

•EspaSol, p. 24

Sears Brand Management Corporation, Hoffman Estates, IL 60179

U.S.A.

www.sears.com/craftsman

04/12/2013

Part No. E106178

Page

Warranty .......................................... see below

Safety Symbols ............................................ 3

Important Safety Instructions & Guidelines ....................... 3

Specifications ............................................. 9

Glossary ................................................. 9

Duty Cycle ............................................... 10

Overview ................................................ 11

Assembly ................................................ 12

Installation ............................................ 13-14

Operating Procedures ...................................... 15

Maintenance ............................................. 16

Storage ................................................. 16

Troubleshooting Guide .................................. 17-18

Parts List ............................................. 19-21

Spanish ................................................. 24

Service Number .................................... back cover

ONE YEAR FULL WARRANTY ON CRAFTSMAN

AIR COMPRESSOR

If this Craftsman Air Compressor fails due to manufacturer's defects

in material or workmanship within one year of the date of purchase,

RETURN IT TO THE NEAREST SEARS STORE OR SERVICE CENTER IN

THE UNITED STATES and it will be replaced or repaired (at our option),

free of charge.

If this Air Compressor is used for commercial or rental purposes, this

warranty applies for only 90 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 Brand Management Corporation, Hoffman Estates, IL 60179

U.S.A.

2- ENG

This manual contains information that 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

symbols below. Please read the manual and pay attention to these symbols.

Indicates an imminently

hazardous situation which, if not

avoided, will 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.

Indicates a practice

not related to personal injury which,

if not avoided, may result in property

damage.

_This product contains chemicals known to the State of California

to cause cancer, and birth defects or other reproductive harm. Wash hands after

handling.

_Some dust contains chemicals known to the State of California

to cause cancer, birth defects or other reproductive harm such as asbestos and

lead in lead based paint.

To reduce the risk of injury, read the instruction manual._\__J

SAVE THESE INSTRUCTIONS

RISK OF EXPLOSION OR FIRE

WHAT CAN HAPPEN HOW TO PREVENT IT

= Itis norma! f0r e!ectdca! e Always operate the compressor

Contacts within the motor and in a well ventilated area free

piessure Switch to spark. , CombuStible materials,

gasoline, or solvent vapors.

• If electrical sparks from • If spraying flammable materials,

compressor come into contact locate compressor at least

with flammable vapors, they may 20' (6.1 m) away from spray

ignite, causing fire or explosion, area. An additional length of

air hose may be required.

• Store flammable materials

in a secure location away

from compressor.

3- ENG

Restricting any of the com-

pressor ventilation openings

will cause serious overheat-

ing and could cause fire.

Unattended operation of this prod-

uct could result in personal injury

or property damage. To reduce the

risk of fire, do not allow the com-

pressor to operate unattended.

• Never place objects against

or on top of compressor.

• Operate compressor in an open

area at least 12" (30.5 cm) away

from any wall or obstruction that

would restrict the flow of fresh

air to the ventilation openings.

e Operate compressor in a

clean, dry well ventilated area.

Do not operate unit in any

confined area. Store indoors.

• Always remain in attendance with

the product when it is operating.

Always turn off and unplug

unit when not in use.

__ RISK TO BREATHING (ASPHYXIATION)

WHAT CAN HAPPEN

*The compressed air directly from

your compressor is not safe

breathing, The ai[ stream may

contain carbon monoxide, toxic

vapors, 0r solid particles from the air

tank. Breathing these c0ntaminants

can cause serious injury or death:

Exposure to chemicals in dust

created by power sanding,

sawing, grinding, drilling,

and other construction

activities may be harmful.

Sprayed materials such as paint,

paint solvents, paint remover,

insecticides, weed killers, may

contain harmful vapors and poisons.

HOW TO PREVENT IT

•Never use air obtained directly

from the compress0r t0 supply

air for human consumption. The

compressor is not equipped with

suitable filters and in.line safety

equipment for human consumption.

Work in an area with good cross

ventilation. Read and follow

the safety instructions provided

on the label or safety data

sheets for the materials you are

spraying. Always use certified

safety equipment: NIOSH/OSHA

respiratory protection or properly

fitting face mask designed for use

with our s ecific a lication.

4- ENG

I_ IR_r_ RISK OF BURSTING

Air Tank: On February 26, 2002, the U.S. Consumer Product Safety Commission

published Release # 02-108 concerning air compressor tank safety:

Air compressor receiver tanks do not have an infinite life. Tank life is dependent

upon several factors, some of which include operating conditions, ambient condi-

tions, proper installations, field modifications, and the level of maintenance. The

exact effect of these factors on air receiver life is difficult to predict.

If proper maintenance procedures are not followed, internal corrosion to the

inner wall of the air receiver tank can cause the air tank to unexpectedly rupture

allowing pressurized air to suddenly and forcefully escape, posing risk of injury to

consumers.

Your compressor air tank must be removed from service by the end of the year

shown on your tank warning label.

The following conditions could lead to a weakening of the air tank, and result in a

violent air tank explosion:

WHAT CAN HAPPEN HOW TO PREVENT IT

• Failure to properly dra!n condensed • Drain air tank daily Or after each use.

water from air tank, causing rust If air tank deve!ops a !eak, replace

and thinning of the Steel air tank, it immediate!y with a new air tank

or replace the entire compressor.

• Modifications or attempted

repairs to the air tank.

o Unauthorized m0difications

to the safety Valve or any

other components which

control air tank pressure.

and other inflatables can cause

them to explode or fly apart, and

could result in serious injury.

Never drill into, weld, or make any

modifications to the air tank or its

attachments. Never attempt to

repair a damaged or leaking air

tank. Replace with a new air tank.

e The air tank is designed to withstand

specific operating pressures.

Never make adjustments or

parts Substitutions to alter the

factory set operating pressures.

Attachments & accessories:

Exceeding the pressure rat-

ing of air tools, spray guns, air

operated accessories, tires,

Follow the equipment manufacturers

recommendation and never exceed

the maximum allowable pressure

rating of attachments. Never use

compressor to inflate small low

pressure objects such as children's

toys, footballs, basketballs, etc.

5- ENG

_-_ RiSK OF ELECTRICAL SHOCK

WHAT CAN HAPPEN

Your 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

HOW TO PREVENT iT

• Never operate the compressor

outdoors when it is raining

or in wet conditions.

Never operate compressor

with protective covers

removed or damaged.

• Any electrical wiring or repa!rs

required on this product should be

injury or death by electrocution: performed by authorized service

' centei personne! in aCcordanCe with

national and local electrical code&

Electrical Grounding: Failure to

provide adequate grounding to this

product could result in serious injury

or death from electrocution. Refer to

Grounding instructions paragraph

in the Installation section.

Make certain that the electrical

circuit to which the compressor

is connected provides proper

electrical grounding, correct voltage

and adequate fuse protection.

__ RiSK FROM FLYING OBJECTS

HOW TO PREVENT iT

Always wear certified safety

equipment: ANSI Z87.1 eye

protection (CAN/CSA Z94.3)

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 air tank before

attempting maintenance,

attaching tools or accessories.

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.

6- ENG

__ RiSK OF HOT SURFACES

WHAT CAN HAPPEN HOW TO PREVENT iT

•Touching exposed metal such Never touch any exposed metal

as the compresSor head, engine parts on compressor during or

head, engine exhaust or outlet immediately after operation.

tubes, can result in serious burns. Compressor wi!l remain hot for

several minutes after Operation.

,' D0n0t reach around protective

shrouds or attempt maintenance

until unit has been allowed to cool.

WHAT CAN HAPPEN

Moving parts such as the pulley,

flywheel, and belt can cause

serious injury if they come into

contact with you or your clothing.

0 Attempting to operate compressor

with damaged or missing parts or

attempting to repair compressor

with protective shrouds removed

can exPOSe you to moving parts

HOW TO PREVENT iT

• Never operate the compressor

with guards or covers which

are damaged or removed.

Keep your hair, clothing, and

gloves away from moving parts.

Loose clothes, jewelry, or long hair

can be caught in moving parts.

Air vents may cover moving parts

and should be avoided as well.

e Any repairs required on this product

should be performed by authorized

service center personnel.

and can result in serious injury.

7- ENG

__ RiSK OF UNSAFE OPERATION

WHAT CAN HAPPEN HOW TO PREVENT iT

• Unsafe operation of your • Review and understand all

compressor could lead to serious instructions and warnings

injury or death to you or others, in this manual.

• Become familiar with the operation

and controls of the air compressor.

Keep operating area clear of all

persons, pets, and obstacles.

Keep children away from the

air compressor at all times.

Do not operate the product

when fatigued or under the

influence of alcohol or drugs.

Stay alert at all times.

Never defeat the safety fea-

tures of this product.

Equip area of operation

with a fire extinguisher.

Do not operate machine

with missing, broken, or

unauthorized parts.

__ RiSK OF FALLING

WHAT CAN HAPPEN HOW TO PREVENT IT

= Ap0rtable compressor can fa!Ie Always operate compressor in a

from a table, workbench, or roof stable secure position to prevent

causing damage to the c0mpress0r accidental movement of the un t.

and could result in serious injury Never operate compressor on a

Or death to the oPerator., roof or other e!evated Position. Use

additional air h0se tO reach high ....

locations:

8- ENG

__ RiSK OF iNJURY FROM LiFTiNG

WHAT CAN HAPPEN HOW TO PREVENT iT

= Serious injurycan result = The compressor is too heavy to be

from attempting to lift lifted by one person. Obtain assis-

too heavy an object, tance from others before lifting.

RISK FROM NOISE

WHATCANHAPPEN I HOWTOPREVENTiT

• Under some conditions and durationlo Always wear Certified safety

of use; noise from this Pr0duct equipment: ANSI S12:6

may contribute to hearing loss: I (S3.19) hearing protection.

SAVE THESE INSTRUCTIONS

FOR FUTURE USE

Model No. 921.165720

Running Horsepower 1.7 *

Bore 2.875" (73.025 mm)

Stroke 1.45" (36.83 mm)

Voltage 120

Hz-Single Phase 60

Minimum Branch Circuit Requirement 15 amps

Fuse Type Time Delay

Air Tank Capacity (Gallon) 33 (124.9 liters)

Maximum Air Pressure 165 PSi

Approximate Cut-in Pressure 135 PSIG

Approximate Cut-out Pressure 165 PSIG

SCFM @ 40 PSi 6.8 *

SCFM @ 90 PSi 5.1 *

* Tested per ISO 1217

Refer to Glossary for abbreviations.

Air Filter

Porous element contained within a

metal or plastic housing attached to

the compressor cylinder head which

removes impurities from the intake air of

the compressor.

Air Tank

Cylindrical component which contains

the compressed air.

Check Valve

Device that prevents compressed air

from flowing back from the air tank to

the compressor pump.

Cut-In Pressure

The low pressure at which the motor will

automatically restart.

Cut-Off Pressure

The high pressure at which the motor

will automatically shut off.

Electric Motor

Device which provides the rotational

force necessary to operate the

9- ENG

compressor pump.

NPT (National Pipe Thread)

A seal thread tape must be used to

provide a leak-free seal on pipe threaded

connections.

Pressure Regulator Knob

Regulates the outgoing pressure from

the air outlet to the tool. It is possible to

increaseor decrease the pressure at the

outlet by adjusting this control knob.

Pressure Switch

Automatically controls the on/off

cycling of the compressor. It stops the

compressor when the cut-off pressure

in the tank is reached and starts the

compressor when the air pressure drops

below the cut-in pressure.The pressure

switch will not automatically start and

control the compressor unless the

manual AUTO/Off Switch isin the

AUTO position.

PSI (Pounds Per Square inch)

Measurement of the pressure exerted

by the force of the air. The actual PSi is

measured by a pressure gauge on the

compressor.

Pump

Produces the compressed air with a

reciprocating piston contained within the

cylinder.

Regulator Pressure Gauge

Displays the current line pressure. Line

pressure isadjusted by rotating the

pressure regulator knob.

Pressure Relief Valve

Prevents air pressure in the air tank from

rising over a predetermined limit.

SCFM (Standard Cubic Feet Per Minute)

A unit of measure of air delivery.

Tank Pressure Gauge

indicates the pressure in the air tank.

Thermal Overload Switch

Automatically shuts off the compressor

ifthe temperature of the electric motor

exceeds a predetermined limit.

This air compressor pump iscapable of running continuously. However, to prolong

the life of your air compressor, it is recommended that a 50%-75% average duty

cycle be maintained; that is,the air compressor pump should not run more than 30-

45 minutes in any given hour.

Accessories for this unit are available at the store the unit was purchased.

The use of any other accessory not recommended for use with this tool could

be hazardous. Use only accessories rated equal to or higher than the rating of

the air compressor.

10- ENG

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