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 CHAPTER 3 (CONTINUED)
SECTION V. MAINTENANCE PROCEDURES (Continued).
3-171. PISTONS, CONNECTING RODS, AND CYL INDER LINERS.
The following is an index to the piston connecting rods and cylinder liner maintenance instructions.
DESCRIPTION
PARAGRAPH
Piston
Connecting Rods
Connecting Rod Bearings
Cylinder Liner
REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTS
You can help improve this manual. If you find any mistakes or if you know of a way to improve the
procedures,. please let us know. Mail your letter, DA Form 2028 (Recommended Changes to
Publications and Blank Forms) or DA Form 2028-2 located in the back of this manual direct to:
Commander, U.S. Army Troop Support Command, ATTN: DRSTR-MPSD, 4300 Goodfellow Blvd., St.
Louis, MO 63120. A reply will be furnished to you.
3-171.1. PISTON - MAINTENANCE INSTRUCTIONS.
a. The trunk-type malleable iron piston is plated with a protective coating of tin which permits close fitting, reduces
scuffing and prolongs piston life. The top of the piston forms the combustion chamber bowl and is designed to compress
the air into close proximity to the fuel spray.
b. Each piston is internally braced with fin-shaped ribs and circular struts, scientifically designed to draw heat
rapidly from the piston crown and transfer it to the lubricating oil spray to ensure better control of piston ring temperature.
3-2911
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