Generally there are three manual types produced for each piece of equipment. You will want the correct manual depending upon your needs. The following guidelines are important depending on what you want a manual to do for you. Manual Type Definitions: Service Manual = Repair / Overhaul / Troubleshooting; Operators Manual = Basic Maintenance / Operation / Fluid Types / Quantities and Adjustments; Parts Catalog = Exploded Views / Parts Names / Factory (OEM) Parts Numbers