This manual contains instructions on the operation and preventive maintenance of your Detroit Diesel engine. Sufficient descriptive material, together with numerous illustrations, is included to enable the operator to understand the basic construction of the engine and the principles by which it functions. This manual does not cover engine repair or overhaul.

Whenever possible, it will pay to rely on an authorized Detroit Diesel Allison Service Outlet for-all your service needs from maintenance to major parts replacement. Authorized service outlets in the U.S. and Canada stock factory original parts and have the specialized equipment and personnel with technical knowledge to provide skilled and efficient workmanship.
The operator: should familiarize himself thoroughly with the contents of the manual before running an engine, making adjustments, or carrying out maintenance procedures.

The information, specifications and illustrations in this publication are based on the information in effect at the time of approval for printing. Generally, this publication is reprinted annually. It is recommended that users contact an authorized Detroit Diesel Allison Service Outlet for information on the latest revision. The right is reserved to make changes at any time without obligation.