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TM 55-1905-220-14-6
General Information - Detroit Diesel N-71 (Cont)
(8) Assembly
(a) Following cleaning and inspection, the engine should be assembled using new parts as determined by
the inspection.
(b) Use of the proper equipment and tools makes the job progress faster and produces better results.
Likewise, a suitable working space with proper lighting must be provided.
(c) Keep the working space, equipment, tools and engine assemblies and parts clean at all times. The area
where assembly operations take place should, if possible, be located away from the disassembly and cleaning
operation. Also, any machining operations should be removed as far as possible from the assembly area.
(d)  Particular attention should be paid to the storing of parts and sub-assemblies. After removal and
cleaning, and prior to assembly, they should be stored in such a place or manner as to keep them clean. If
there is any doubt as to the cleanliness of such parts, they should be recleaned.
(e) When assembling an engine or any part thereof, refer to the table of torque specifications for proper
bolt, nut and stud torques
(9) Work Safety
(a)  A maintenance man can be severely injured if caught in the pulley or belts of an engine that is
accidentally started. To avoid such a misfortune, take. these precautions before starting to work on an engine:
Tag all electrical switches so that the electrical circuit is disrupted. Accidental contact with the starter button will
produce an engine start.
(b) Make sure the mechanism provided at the governor for stopping the engine is in the STOP position.
This will mean the governor is in the NO-FUEL position. The possibility of the engine firing by accident is
(c) Some Safety Precautions to Observe When Working On The Engine:
1. Consider the hazards of the job and wear protective gear such as safety glasses, safety shoes, hard hat,
etc., to provide adequate protection.
2. When lifting an engine component, make sure the lifting device is fastened securely. Be sure the item to be
lifted does not exceed the capacity of the lifting device.
3. Always use caution when using power tools.


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