TM 5-5420-226-20-1
SYSTEMS OPERATION - Continued
ELECTRICAL SYSTEM. An interrelated system of electrical components, consisting of starting
system; charging system (batteries and generating system); lighting, including infrared lighting;
electrical controls and gages; warning lights, switches, and transmitters; and various relays,
circuit breakers, switches, and receptacles, all interconnected by wiring harnesses, cables, and
leads located throughout tank hull and on engine and transmission. Repair of harnesses and
powerplant wiring is limited to replacement of faulty connectors and to substitution of jumper
wires for defective harness wires.
CHARGING SYSTEM.
28-volt, 300-ampere air-cooled generator produces direct current
electrical output through voltage regulator to batteries.
Regulator acts as reverse current
relay preventing current flow back to generator when battery voltage exceeds generator output.
Series parallel connected batteries supply direct current electrical power to master relay and
starter relay.
CHARGING SYSTEM
TA106586
2-14
