TM-9-2815-220-24
AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines
TM-9-2815-220-24 - Page 76 of 1563
TM 9-2815-220-24
THEORY OF OPERATION
0004 00
ENGINE COMPONENTS (Continued)
Crankcase Breather and Fire Extinguisher Systems:
The engine crankcase breather system is completely enclosed which allows the engine to be
submerged without entrance of water and permits the crankcase to be vented.
The breather
system is vented through the left turbosupercharger exhaust outlet into the vehicle exhaust
system.
The engine fire extinguisher system is equipped with a fire extinguisher tube located in the
"V."
The tube has small holes drilled along the entire length to direct carbon dioxide (CO
2
) in
predetermined directions around cylinders, the fuel injection pump, and inter-cylinder
components in case of fire.
WP 0004 00-14
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