Service Manual’s also called Shop & Repair Manuals are books available from the manufacturer. The service guides cover complete directions to diagnose & repair the specific product. The service guides are very detailed and may include comprehensive service information and procedures, removal and installing procedures, dissassembly and assembly, and overhaul procedures, analysis and testing procedures & detailed illustrations. These are the same manuals the pros use.
Parts Catalogs also called Parts Manuals are guides available from the manufacturer showing a complete list of the builder parts or assemblies for the specific item by detailed illustration or a numerical listing of the part numbers & names. It doesn’t include any assembly, maintenance, or owners directions.
Owners Manual’s also called Operator/Operating and Instruction Manuals are guides available from the product builder accompanying the specific product detailing how to install or operate the specific product, safety directions & warranty material.