TM-9-2350-261-20-1 Unit Maintenance Manual Volume 1 M113A2 M577A2 M1064 M1068 M1059 M901A1 Download
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TM 9-2350-261-20-1 THEORY OF OPERATION — Continued 0003 00 POWER PLANT COMPONENTS The power plant consists of three main components: Engine (1) is a liquid cooled, V-type, six cylinder, compression ignition (CI) unit. Starting is by a heavy duty 24 volt starter (2). Engine is protected from low oil pressures and high temperatures by switches in the oil and cooling systems which activate warning light circuits. Transfer gearcase (3) is a compact unit that transfers power from engine flywheel to transmission torque converter. An engine disconnect allows the engine to run without transferring power to the transmission. A power takeoff drives the differential oil pump (4) and a ramp pump (5). Another power takeoff drives the cooling fan (6), and a third drives the generator (7). Transmission (8) is a three speed, constant mesh, planetary gear train with hydraulic torque converter and lockup clutch. It automatically selects the proper gear based on road, load conditions, and range selected. 0003 00-6