TM 9-2350-277-10
THEORY OF OPERATION -- Continued
0003 00
DRIVER'S CONTROLS
The engine, transmission, steering system, and braking system are driver controlled. Engine startup and shutdown are
controlled by electrical signals and mechanical linkages connected to the accelerator pedal, the fuel shutoff cable, and the
hand throttle cable. Steering and braking are controlled through linkages connected to the transmission. The hand brake is
hand controlled.
ENGINE AND DRIVE TRAIN
The engine converts air and diesel fuel into energy. The engine delivers this power to the transmission and variable speed
fan drive. The variable speed fan drive drives the alternator and cooling fan. Air for combustion flows through the
air cleaner, turbocharger, and the engine. Fuel flows from the fuel tanks to fuel injectors which inject the fuel into the
combustion chambers. A drive train transfers power from the engine to the carrier tracks. The drive train consists of the
engine, transmission, drive lines, final drive assemblies, and drive sprockets.
COOLING SYSTEM
The engine and transmission generate heat during normal operation. The cooling system transfers some of the heat to the
outside to maintain a safe operating temperature. A mixture of antifreeze and water is pumped through the cooling system to
cool the engine and transmission. The engine cooling system has a capacity of 13.3 gallons (50.3 liters).
HULL ELECTRICAL SYSTEM
The electrical system operates on four wet cell batteries connected in series/parallel arrangement. Electrical power flows from
the batteries through the distribution box, cables, subsystems assemblies, and to the hull. The hull is a ground.
RAMP
The ramp is located at the rear of the carrier to permit rapid entry and exit. The ramp is hinged at the bottom and has two
locks at the top. The ramp is raised or lowered by a hydraulic system. This system consists of a pump attached to the engine,
a single action cylinder, and a fluid reservoir.
The M58 has a direct vision port in the ramp door.
0003 00-2
Change 2
