The purpose of this manual is to serve as a guide for railroad personnel engaged in the operation of the ELECTRO-MOTIVE 1750 HP GP9 locomotive. The first three sections of the manual present the necessary information to enable the Engineman to successfully operate the locomotive "over the road." A general description and location of the component parts is contained in Section 1. Section 2 outlines the Recommended procedures to be followed for successful operation of the locomotive equipment. A description and general operation of the most commonly used "extras," including dynamic brakes, is found at the end of Section 2. Section 3 outlines the possible causes, location, and Correction of difficulties that may be encountered while "on the road." Sections 4 and 5 of the manual have been included for those who desire a more thorough knowledge of the locomotive's Systems and Electrical equipment. Charts and wiring diagrams are used to illustrate the descriptive material. Section 6, Steam Generator, covers the operation and troubleshooting procedures to be followed if the locomotive is equipped with a Vapor Heating Corporation OK series steam generator. Principal articles of each section are numbered consecutively for ready reference, as is each page of the section. Articles and pages are numbered in the 100 series type of numbering. A page in the 400's is in Section 4 as is any article numbered in the 400's.
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