THEORY OF OPERATION (cont) - TM-9-2350-292-20-1

TM-9-2350-292-20-1 Carrier Ammunition Tracked M992A1(NSN 2360-01-362-3021) EIC:AE6 Manual
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TM 9--2350--292--20--1 0005 00--1 THEORY OF OPERATION 0005 00 THIS WORK PACKAGE COVERS: Powerpack, Tracks and Suspension, Fixed Fire Extinguisher System, Hydraulic System, Winch and Spade Assemblies, Auxiliary Power Unit, Gas/Particulate Filter Unit (GPFU), M2A2 Air Purifier with M3 Heaters, Smoke Grenade Launcher System, M239, Exhaust Smoke Generating System, Deep Water Fording Kit, and Electrical System POWERPACK Consists of the engine, cross--drive transmission and right and left output reduction gear drive. The powerpack is removed from the vehicle as one complete unit. The front of the engine is referred to as the damper--end or front, the rear of the engine is referred to as the fly- wheel--end or rear. As viewed from the front or damper--end toward the rear or flywheel--end, the side to the right is called the right--side and the side to the left is called the left--side. Viewing the engine from the front, the right bank of cylinders is numbered 1R through 6R and the left bank of cylinders is numbered 1L through 6L. 6R 5R 4R 3R 2R 1R MAIN ENGINE ENGINE REAR (FLYWHEEL END) ENGINE FRONT (DAMPER END) 6L 5L 4L 3L 2L 1L VEHICLE LEFT VEHICLE FRONT VEHICLE REAR CROSS--DRIVE TRANSMISSION (CENTER SECTION) VEHICLE RIGHT LEFT OUTPUT REDUCTION GEAR RIGHT OUTPUT REDUCTION GEAR LEFT DRIVE SPROCKETS AND HUB RIGHT DRIVE SPROCKETS AND HUB LEFT DRIVE COUPLING RIGHT DRIVE COUPLING ENGINE RIGHT BANK ENGINE LEFT BANK ENGINE The Teledyne Vehicle Systems model AVDS--1790--8CR engine is a 12--cylinder, 90--degree, V--type, 4--cycle, air-- cooled, turbosupercharged diesel engine. The cylinder assemblies are individually replaceable units with overhead valves and valve rocker assemblies in the head. The cylinders are arranged in two banks of six cylinders each. Each bank of cylinders has an overhead camshaft arrangement to actuate the valves of each cylinder. The engine’s fuel injection system utilizes a fuel metering pump which supplies metered fuel to individual cylinders through fuel injector nozzles. The engine fuel pump assembly, located at the front of the engine, delivers fuel to the metering pump. A turbosupercharger is located on each side of the engine at the rear. The exhaust--gas driven turbosupercharger increases the air flow pressure entering the air intake manifolds.

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