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 TURB'
IMPELLER
GAS INLET
ENGINE
CYLINDER
EXHAUST GAS
DISCHARGE
ENGINE EXHAUST GAS FLOW
AMBIENT AIR
COMPRESSED AIR FLOW
Figure 3-16. Diagram of turbocharger operation.
2744 is provided at the back of this publication. A
the pressure waves. Usually, a cylindrical unit with
completed example of DD Form 2744 is located in
baffles, expansion chambers, and sound absorption
appendix F, figure F-l. It is authorized for electronic
materials is used.
generation.
3-11. Service practices.
(1) Record keeping. Engine log sheets are an
a. Maintenance program. Service practices for
important part of record keeping. The sheets must
diesel engines consist of a complete maintenance
be developed to suit individual applications (i.e.,
auxiliary use) and related instrumentation. Accu-
program that is built around records and observa-
rate records are essential to good operations. Notes
tions. The maintenance program includes appropri-
should be made of all events that are or appear to be
ate analysis of these records. DD Form 2744
outside of normal range. Detailed reports should be
(Emergency/Auxiliary Generator Operation Log)
logged. Worn or failed parts should be tagged and
should be used to record inspection testing of
protectively stored for possible future reference and
emergency/auxiliary generators. A copy of DD Form
3-22
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