The following is a description of typical manuals:

Operator Cards may be available to provide a convenient reference for guiding the user in the installation and basic operation of the system and/or unit. The operator cards contain abbreviated pertinent information provided in the Level I/II Manual and are useful to facilitate operation of the system an/or unit in customer locations.

Level I/II Manual contains information regarding installation and basic operation of a system or an individual unit. Also included are procedures for performing scheduled preventive maintenance, fault isolation to a defective unit, and unit removal and replacement.

Level III Manuals provide information needed to perform scheduled preventive maintenance, fault isolation, and removal and replacement procedures for units down to the assembly or chassis-mounted component level.

Level IV Data Packages provide all parts lists, component location diagrams, and schematic diagrams to aid in component level repair when this approach is cost effective.