TM 5-3800-205-10-2
THEORY OF OPERATION - CONTINUED
0003 00
ELECTRICAL SYSTEM
1.
The electrical system consists of two 12-volt batteries connected in series, with negative grounding, providing 24 volts
to operate the electrical systems and components.
2.
The system contains all the necessary switches, circuit breakers, fuses, relays, harnesses, and connectors to operate the
machine, including a NATO slave receptacle.
3.
The three major systems comprising the electrical system are:
a.
starting and charging systems;
b.
service, work, and blackout lights; and
c.
EMS monitoring and alarm system.
KEY CIRCUIT TO MACHINE
CIRCUIT
ELECTRICAL
BREAKER
BREAKER
SYSTEMS
MAIN
NEUTRAL
STARTER
START
STARTER
SWITCH
SWITCH
NATO
BATTERY
STARTER SLAVE
DISCONNECT
MOTOR
RECEPTACLE SWITCH
390-977
HYDRAULIC SYSTEM
1.
General.
a.
The machine hydraulic system supports both steering and water distributor hydraulic systems.
b.
The hydraulic system consists of vane pumps; control, check, and spool type valves; filters; hydraulic motor; lines,
hoses, and fittings; oil cooler; and hydraulic tank. Two vane type pumps mounted on the torque converter provide
hydraulic system pressure.
c.
The water pump for the water distributor is hydraulically powered.
0003 00-6
