Owner’s Manual CRAFTSMAN AIR COMPRESSOR 2-gallon 1.5 HP (peak) Oil Lubricated Model No. 921.152100 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 Español, p. 12 Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A. www.sears.com/craftsman 06/05/2002 Part No.
TABLE OF CONTENTS Page Warranty........................................................................................................................... 2 Safety Instructions................................................................................ 3 Important Safety Instructions & Guidelines.................................................. 3 Specifications...................................................................................... 4 Glossary...............................................
Safety Instructions 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. A DANGER A CAUTION Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Important Safety Instructions & Guidelines Risk from Flying Objects 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. Risk to Breathing Avoid using the air compressor in confined areas.
Glossary CFM: Cubic feet per minute. SCFM: Standard cubic feet per minute; a unit of measure for air delivery. PSIG: 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 will automatically Cut-Out Pressure: The point at which the motor stops when the tank has reached maximum air pressure.
Installation & Assembly A WARNING A WARNING The air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could occur from moving parts, electrical sources, compressed air or hot surfaces. The regulator assembly must be attached before use. Failure to assemble correctly could result in leaks and possible injury.
A WARNING Improper installation of the grounding plug will 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 flat 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.
Maintenance NOTE: Any service procedure not covered in the maintenance schedule below should be performed by qualified service personnel.
Troubleshooting Guide ThG air compressor should be turned off and unplugged from the power source before any maintenance is performed as well as the air bled from the tank and the unit allowed time to cool. Personal injuries could occur from moving parts, electrical sources, compressed air, or hot surfaces. A WARNING PROBLEM POSSIBLE CORRECTION Air leaks at the check valve A defective check valve results in a constant air leak at the pressure release valve or at the pressure relief valve.
Craftsman Air Compressor Model 921.
Craftsman Air Compressor Model 921.