Operation and maintenance manual

About the Manual QSB4.5 and QSB6.7
Page i-2 Section i - Introduction
About the Manual
General Information
This manual contains information needed to correctly operate and maintain your engine as recommended by
Cummins Inc. For additional service literature and ordering locations, refer to Service Literature (Section L).
This manual does not cover vehicle, vessel, or equipment maintenance procedures. Consult the original vehicle,
vessel, or equipment manufacturer for specific maintenance recommendations.
Both metric and U.S. customary values are listed in this manual. The metric value is listed first, followed by the U.S.
customary in brackets.
Numerous illustrations and symbols are used to aid in understanding the meaning of the text. Refer to Symbols in this
section for a complete listing of symbols and their definitions.
Each section of the manual is preceded by a Section Contents to aid in locating information.