TM-9-2350-238-20-2
CRANE (CAB) COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT,ARMORED, M578
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL
MAY 1993
CHANGE 1
TM-9-2350-238-20-2 - Page 12 of 495
TM 9-2350-238-20- 2
d.
Electrical System (4).
The electrica l
(3)
The 300-ampere, 24-volt d c
system includes batteries, master relay ,
generator operates whenever the engine i s
generator, voltage regulator, starter an d
running. It provides electrical power to re-
solenoid, neutral position switch and starte r
charge the batteries and operate the vehicle .
control relay, instrument and switch panels ,
circuit breakers, vehicle lighting, warnin g
(4)
The voltage regulator controls th e
switches and transmitters, and wirin g
harnesses and leads. Electrical power is pro-
vided by a 24-volt, 300-ampere generator an d
four series-parallel-connected, 12-volt storag e
batteries. Output of the generator is controlle d
by a solid state voltage regulator. Electrica l
components are controlled by switches lo -
cated in the driver’s compartment. Leads an d
wiring harnesses distribute current to all elec-
trical components. A slave receptacle allow s
connection of the vehicle electrical system t o
another power source .
(1)
Four 12-volt batteries are connecte d
in series-parallel to produce 24 volts, and t o
provide electrical power to start and operat e
the vehicle .
output voltage and current of the generator. I t
is a solid state unit and is not adjustable. Cir-
cuit breakers protect the generator from elec-
trical overload .
(5)
The starter is a direct cranking, non -
reversible, 24-volt unit. It is actuated by a
two-coil starter motor solenoid mounted o n
the starter .
(6)
The neutral position switch close s
when the transmission shift lever is in neutra l
position. This completes the circuit for th e
starter control relay to supply battery powe r
to the two starter windings when the star t
switch is pressed .
(2)
The batteries transmit powe r
through contacts in the master relay. Whe n
the master switch is on, the master relay is
energized and power is available to all circuits
in the vehicle .
1- 5
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