Craftsman 919.724591 User Manual

Owner’s Manual

Permanently Lubricated

Single Stage

Portable

AIR COMPRESSOR

Model No.

919.724591

•Safety Guidelines

•Assembly

•Operation

•Maintenance

•Service and Adjustments

•Troubleshooting

•Repair Parts

CAUTION: Read the Safety Guidelines and

All Instructions Carefully Before Operating.

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

A14841 Rev. 0 10/14/05

TABLE OF CONTENTS

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

SPECIFICATION CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

SAFETY GUIDELINES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

DUTY CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15

MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17

SERVICE AND ADJUSTMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19

STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-23

REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27

HOW TO ORDER REPAIR PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

WARRANTY

FULL ONE YEAR WARRANTY

If this CRAFTSMAN Inflator fails due to a defect in material or workmanship within one year from the date of purchase, Sears will at its option repair or replace it free of charge. Contact your nearest Sears Service Center (1-800- 4-MY-HOME®) to arrange for product repair, or return the CRAFTSMAN product to the place of purchase for replacement.

If this Air Compressor is used for commercial or rental purposes, this warranty applies for only ninety days from the date of purchase.

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

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

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2- ENG

SPECIFICATION CHART
Model No.	919-724591
Running Horsepower	1.6
Bore	2.375"
Stroke	1.35"
Voltage-Single Phase	120
Minimum Branch Circuit Requirement	15 amps
Fuse Type	Time Delay
Air Tank Capacity	33
Approx. Cut-In	120
Approx. Cut-out	150
SCFM @ 40 psig	7.8
SCFM @ 90 psig	5.5

Refer to Glossary for abbreviations.

SAFETY GUIDELINES - DEFINITIONS

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						Indicates a potentially
				imminently hazardous						hazardous situation
	situation which, if not avoided, will result						which, if not avoided, may result in minor
	in death or serious injury.						or moderate injury.
										Used without the
				Indicates a potentially
				hazardous situation						safety alert symbol
	which, if not avoided, could result in						indicates a potentially hazardous situation
	death or serious injury.						which, if not avoided, may result in
							property damage.

IMPORTANT SAFETY INSTRUCTIONS

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains

chemicals known (to the State of California) to cause cancer, birth defects or other reproductive harm. Some example of these chemicals are:

•lead from lead-based paints

•crystalline silica from bricks and cement and other masonry products

•arsenic and chromium from chemically-treated lumber

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, always

wear MSHA/NIOSH approved, properly fitting face mask or respirator when using such tools.

When using air tools, basic safety precautions should always be followed to reduce the risk of of personal injury.

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IMPORTANT SAFETY INSTRUCTIONS

Save these instructions

Improper operation or maintenance of this product could result in serious injury and property damage. Read and understand all warnings and operation instructions before using this equipment.

HAZARD

WARNING: Risk of explosion or fire

What Could Happen	How To Prevent It
It is normal for electrical contacts within	Always operate the compressor in a
the motor and pressure switch to spark.	well ventilated area free of combustible
	materials, gasoline, or solvent vapors.
If electrical sparks from compressor	If spraying flammable materials, locate
come into contact with flammable	compressor at least 20 feet away from
vapors, they may ignite, causing fire or	spray area. An additional length of hose
explosion.	may be required.
	Store flammable materials in a secure
	location away from compressor.
Restricting any of the compressor	Never place objects against or on top
ventilation openings will cause serious	of compressor. Operate compressor in
overheating and could cause fire.	an open area at least 12 inches away
	from any wall or obstruction that would
	restrict the flow of fresh air to the
	ventilation openings.
	Operate compressor in a clean, dry well
	ventilated area. Do not operate unit
	indoors or in any confined area.
Unattended operation of this product	Always remain in attendance with the
could result in personal injury or	product when it is operating.
property damage. To reduce the risk	Always disconnect electrical power by
of fire, do not allow the compressor to	moving pressure switch lever to the off
operate unattended.	position and drain tank daily or after
	each use.

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HAZARD

WARNING: Risk of 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 Could Happen

Failure to properly drain condensed water from tank, causing rust and thinning of the steel tank.

Modifications or attempted repairs to the tank.

Unauthorized modifications to the unloader valve, safety valve, or any other components which control tank pressure.

Excessive vibration can weaken the air tank and cause rupture or explosion

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.

How To Prevent It

Drain tank daily or after each use. If tank develops a leak, replace it immediately with a new tank or replace the entire compressor.

Never drill into, weld, or make any modifications to the tank or its attachments.

The tank is designed to withstand specific operating pressures. Never make adjustments or parts substitutions to alter the factory set operating pressures.

For essential control of air pressure, you must install a pressure regulator and pressure gauge to the air outlet (if not equipped) of your compressor. 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.

HAZARD

WARNING: Risk from Flying Objects

What Could 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.

How To 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.

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HAZARD

WARNING: Risk of Electrical Shock

	What Could Happen	How To Prevent It
	Your air compressor is powered by	Never operate the compressor outdoors
	electricity. Like any other electrically	when it is raining or in wet conditions.
	powered device, If it is not used	Never operate compressor with
	properly it may cause electric shock.
		protective covers removed or damaged.
	Repairs attempted by unqualified	Any electrical wiring or repairs required
	personnel can result in serious injury	on this product should be performed by
	or death by electrocution.	authorized service center personnel in
		accordance with national and local
		electrical codes.
	Electrical Grounding: Failure to provide	Make certain that the electrical circuit
	adequate grounding to this product	to which the compressor is connected
	could result in serious injury or death	provides proper electrical grounding,
	from electrocution.	correct voltage and adequate fuse
	See grounding instructions.	protection.

HAZARD

WARNING: Risk to Breathing

What Could Happen	How To Prevent It
The compressed air directly from your	Air obtained directly from the compressor
compressor is not safe for breathing.	should never be used to supply air for
The air stream may contain carbon	human consumption. In order to use air
monoxide, toxic vapors, or solid	produced by this compressor for
particles from the tank. Breathing these	breathing, suitable filters and in-line
contaminants can cause serious injury	safety equipment must be properly
or death.	installed. In-line filters and safety
	equipment used in conjunction with the
	compressor must be capable of treating
	air to all applicable local and federal
	codes prior to human consumption.
Sprayed materials such as paint, paint	Work in an area with good cross
solvents, paint remover, insecticides,	ventilation. Read and follow the safety
weed killers, may contain harmful	instructions provided on the label or
vapors and poisons.	safety data sheets for the materials
	you are spraying. Use a NIOSH/MSHA
	approved respirator designed for use
	with your specific application.

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HAZARD

WARNING: Risk of Burns

	What Could Happen	How To Prevent It
	Touching exposed metal such as the	Never touch any exposed metal parts
	compressor head or outlet tubes, can	on compressor during or immediately
		after operation. Compressor will remain
	result in serious burns.
		hot for several minutes after operation.
		Do not reach around protective shrouds
		or attempt maintenance until unit has
		been allowed to cool.

HAZARD

WARNING: Risk from Moving Parts

What Could Happen	How To Prevent It
Moving parts such as the pulley,	Never operate the compressor with
flywheel, and belt can cause serious	guards or covers which are damaged or
injury if they come into contact with you	removed.
or your clothing.
Attempting to operate compressor with	Any repairs required on this product
damaged or missing parts or	should be performed by authorized
attempting to repair compressor with	service center personnel.
protective shrouds removed can expose
you to moving parts and can result in
serious injury.

HAZARD

WARNING: Risk of Falling

What Could Happen

A portable compressor can fall from a table, workbench, or roof causing

damage to the compressor and could result in serious injury or death to the operator.

How To 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.

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HAZARD

WARNING: Risk of Serious Injury or Property Damage When Transporting Compressor

(Fire, Inhalation, Damage to Vehicle Surfaces)

What Could Happen

Oil can leak or spill and could result in fire or breathing hazard; serious injury or death can result. oil leaks will damage carpet, paint or other surfaces in vehicles or trailers.

How To Prevent It

Always place COMPRESSOR on a protective mat when transporting to protect against damage to vehicle from leaks. Remove COMPRESSOR from vehicle immediately upon arrival at your destination.

HAZARD

WARNING: Risk of Unsafe Operation

What Could Happen

Unsafe operation of your air compressor could lead to serious injury or death to you or others.

How To Prevent It

Review and understand all instructions and warnings 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 features of this product.

Equip area of operation with a fire extinguisher.

Do not operate machine with missing, broken, or unauthorized parts.

SAVE THESE INSTRUCTIONS

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GLOSSARY

Become familiar with these terms before operating the unit.

CFM: Cubic feet per minute. SCFM: Standard cubic feet per minute; a unit of measure of air delivery.

PSIG: Pounds per square inch gauge; a unit of measure of pressure.

Code Certification: Products that bear one or more of the following marks: UL, CUL, ETL, CETL, have been evaluated by OSHA certified independent safety laboratories and meet the applicable Underwriters Laboratories Standards for Safety.

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 the motor will restart automatically. The low pressure

at which the motor automatically restarts is called "cut-in" pressure.

Cut-Out Pressure: When an air compressor is turned on and 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 pressure higher than its capacity. The high pressure at which the motor shuts off is called "cut-out" pressure.

Branch Circuit: Circuit carrying electricity from electrical panel to outlet.

ACCESSORIES

This unit is capable of powering the following Accessories. The accessories are available through the current Power and Hand Tool Catalog or full-line Sears stores.

Accessories		•	Air Pressure Regulators
•	In Line Filter	•	Oil Fog Lubricators
•	Tire Air Chuck	• Air Hose:1/4", 3/8" or 1/2" I.D. in
• Quick Connector Sets (various			various lengths
	sizes)

Refer to the selection chart located on the unit to select the tools this unit is capable of powering.

DUTY CYCLE

Air compressors should be operated on not more than a 50% duty cycle. This means an air compressor that pumps air more than 50% of one hour is considered misuse, because

the air compressor is undersized for the required air demand. Maximum compressor pumping time per hour is 30 minutes.

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A14841

ASSEMBLY

Contents of Carton

1 -	Air Compressor
1 -	Handle
1 -	Grip Handle
4 - Self Tapping Screw
2 -	Wheels
2 -	Shoulder Bolts, 3/8-16
2 -	Hex Nuts, 3/8-16
1 -	Rubber Strip

Tools Required for Assembly

1 - 9/16" socket or open end wrench

1 - 1/2" socket or open end wrench

Assemble Handle

1.To make installation easier, submerge handle grip into warm soapy water. Remove handle grip from soapy water and slide onto handle.

2.Insert the handle inside the compressor saddle and line up the two bolt holes on each side.

Handle

Grip

Screw

Handle

Nut

Shoulder

Wheel Bolt

Rubber Strip

3.Install the four screws, two on each side.

4.Tighten securely.

Assemble Wheels

It will be necessary to brace or

support one side of the unit when installing the wheels because the compressor will have a tendency to tip.

1.Attach wheels with shoulder bolts and nuts as shown. NOTE: Place the bolts in the bottom hole of the wheel bracket on units 20-29 gallons and in the top hole on units 30 gallons and up.

2.Tighten securely. NOTE: The unit will sit level if the wheels are properly installed.

The wheels and handle do not

provide adequate clearance, stability or support for pulling the unit up and down stairs or steps. The unit must be lifted, or pushed up a ramp.

Assemble Rubber Strip

1.Clean and dry underside of air tank leg opposite wheels.

2.Remove the protective paper strip from the adhesive backed rubber foot strip.

3.Attach the rubber foot strip to the bottom of leg. Press firmly into place.

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INSTALLATION

HOW TO SET UP YOUR UNIT

Location of the Air Compressor

Locate the air compressor in a clean, dry and well ventilated area. The air compressor should be located at least 12" away from the wall or other obstructions that will interfere with the flow of air. The air compressor pump and shroud are designed to allow for proper cooling. The ventilation openings on the compressor are necessary to maintain proper operating temperature. Do not place rags or other containers on or near these openings.The air filter must be kept clear of obstructions which could

reduce air flow to the air compressor.

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.

The portable air compressor is equipped with a cord having a grounding wire with an appropriate grounding plug (see following illustrations). The plug must be used with an outlet that has been installed and grounded in accordance with all local codes and ordinances.

1.The cord set and plug with this unit contains a grounding pin. This plug MUST be used with a grounded outlet.

IMPORTANT: The outlet being used must be installed and grounded in accordance with all local codes and ordinances.

2.Make sure the outlet being used has the same configuration

as the grounded plug. DO NOT USE AN ADAPTER. See illustration.

Plug

Grounded

Outlets

Grounding Pin

3.Inspect the plug and cord before each use. Do not use if there are signs of damage.

4.If these grounding instructions are not completely understood, or if in doubt as to whether the compressor is properly grounded, have the installation checked by a qualified electrician.

IMPROPER GROUNDING CAN

RESULT IN ELECTRICAL SHOCK.

Do not modify the plug provided. If it does not fit the available outlet, a correct outlet should be installed by a qualified electrician.

Repairs to the cord set or plug MUST be made by a qualified electrician.

11ENG

A14841

Extension Cords

Use extra air hose instead of an extension 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:

•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

•in good condition

•no longer than 50 feet

•12 gauge (AWG) or larger. (Wire size increases as gauge number decreases. 10 AWG and 8 AWG may also be used. DO NOT USE 14 OR 16 AWG.)

Voltage and Circuit Protection

Refer to the Parts Manual for the voltage and minimum branch circuit requirements.

Certain air compressors can be operated on a 15 amp circuit if the following conditions are met.

1.Voltage supply through branch circuit is 15 amps.

2.Circuit is not used to supply any other electrical needs (lights, appliances, etc.).

3.Extension cords comply with specifications.

4.Circuit is equipped with a 15 amp circuit breaker or 15

amp time delay fuse. NOTE: If compressor is connected to a circuit protected by fuses, use only time delay fuses. Time delay fuses should be marked "D" in Canada and "T" in the US.

If any of the above conditions cannot be met, or if operation of the compressor repeatedly causes interruption of the power, it may be necessary to operate it from a 20 amp circuit. It is not necessary to change the cord set.

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OPERATION

Know Your Air Compressor

READ THIS OWNER’S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT. Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference.

Pressure

Switch "On/Auto/

Off" Switch

Safety Valve

Outlet

Pressure Gauge Tank

Pressure Gauge

Regulator

Description of Operation

Become familiar with these controls before operating the unit.

On/Auto/Off Switch: Turn this switch "ON/AUTO" to provide automatic power to the pressure switch and "OFF" to remove power at the end of each use.

Pressure Switch: The pressure switch 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.

Safety Valve: If the pressure switch does not shut off the air compressor at its "cut-out" pressure setting, the safety valve will protect against high pressure by "popping out" at its factory set pressure (slightly higher than the pressure switch "cut-out" setting).

Outlet Pressure 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.

Tank Pressure Gauge: The tank pressure gauge indicates the reserve air pressure in the tank.

Regulator: Controls the air pressure shown on the outlet pressure gauge. Pull the knob out and turn clockwise to increase pressure

and counterclockwise to decrease pressure. When the desired pressure is reached push knob in to lock in place.

Drain Valve:
The drain valve
is located at
the base of the
		Drain
air tank and is		Valve
used to drain
condensation
at the end of each use.

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Pressure

Release

Valve

Check Valve

Cooling System (not shown): 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 expelled.

Air Compressor Pump (not shown): Compresses air 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.

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

Release Valve: The pressure release valve, located on the side of

the pressure switch, is designed to automatically release compressed air from the compressor head and the outlet tube when the air compressor reaches "cut-out" pressure or is shut off. The pressure release valve allows the motor to restart freely. When the motor stops running, air will be heard escaping from this valve for a few seconds. No air should be heard leaking when the motor is running, or continuous leaking after unit reaches "cut-out" pressure.

Air Intake Filter (not shown): This filter is designed to clean air coming into the pump. This filter must always be clean and ventilation openings free from obstructions. See "Maintenance".

How to Use Your Unit

How to Stop:

1.Set the "On/Auto/Off" lever to "OFF".

Before Starting

Break-in Procedure

Serious damage may result if the

following break-in instructions are not closely followed.

This procedure is required before the air compressor is put into service and when the check valve or a complete compressor pump has been replaced.

1.Make sure the "On/Auto/Off" lever is in the "OFF" position.

NOTE: If quick connect is installed, pull coupler back until it clicks to prevent air from escaping through the quick connect.

"On/Auto/ Pressure Off" Switch Switch

Safety

Valve

	Outlet	Tank
	Pressure
		Pressure
	Gauge
		Gauge

Regulator

Quick

Connect

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14ENG

2.Plug the power cord into the correct branch circuit receptacle. (Refer to Voltage and Circuit Protection paragraph in the Installation section of this manual.)

3.Open the drain valve fully (counter-clockwise) to permit air to escape and prevent air pressure build up in the air tank during the break-in period.

4.Move the "On/Auto/Off" lever to "ON/AUTO" position. The compressor will start.

5.Run the compressor for 15 minutes. Make sure the drain valve is open and there is minimal air pressure build-up in tank.

6.After 15 minutes, close the drain valve (clockwise). The air receiver will fill to "cut-out" pressure and the motor will stop.

The compressor is now ready for use.

Before Each Start-Up:

1.Place "On/Auto/Off" lever to "OFF".

2.Pull regulator knob out, turn counter-clockwise until it stops. Push knob in to lock in place.

3.Attach hose and accessories. NOTE: The hose or accessory will require a quick connect plug if the air outlet is equipped with a quick connect.

Too much air pressure

causes a hazardous risk of bursting. Check the manufacturer’s maximum pressure rating for air tools

and accessories. The regulator outlet pressure must never exceed the maximum pressure rating.

How to Start:

1.Turn the "On/Auto/Off" lever to "ON/AUTO" and allow tank

pressure to build. Motor will stop when tank pressure reaches "cutout" pressure.

2.Pull the regulator knob out and turn clockwise to increase pressure. When the desired

pressure is reached push knob in to lock in place. The compressor is ready for use.

NOTE: Always operate the air compressor in well-ventilated areas free of gasoline or other combustible vapors. If the compressor is being used to operate a sprayer DO NOT place near the spray area.

15ENG

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