Service Manuals also called Shop and Repair Manuals are books published by the product makers. They include extensive directions to analyze and fix the certain item. They are very detailed and may contain comprehensive servicing info and procedures, removal and installation procedures, dissassembly and assembly, and overhaul procedures, analysis and testing procedures & complete in-depth illustrations. These specific service manuals are the same exact manuals the techs use.
Parts Catalogs also called Parts Manuals are guides published from the product builder showing a complete listing of the makers parts or assembly for the particular product by detailed illustration or a numerical listing of parts numbers and names. It does not contain any assembly, maintenance, or owners instructions.
Owners Manual’s also called Operator/Operating & Instruction Manuals are guides published directly from the product makers accompanying the specific item detailing how to install or operate the exact item, safety directions and warranty material.