M2/M3 BFV: HULL POWER DIST SYSTEM - OD1606 - LESSON 1/PE 1
LESSON 1.
PRACTICAL EXERCISE - ANSWERS
a.
The electrical system provides all electrical power for the
vehicle.
The system operates on four wet cell batteries which
charge, regulate, and monitor equipment.
The batteries provide a
normal operating voltage of 27.5 volts with an amperage capability of
200 amps per hour.
The batteries supply the vehicle with electricity when the engine is
off. All electrical power is delivered through the distribution box.
Electrical power flows from the batteries through the distribution
box, cables, and wiring assemblies to the hull. The hull is a ground
for the electrical system.
The turret also receives power from the
hull power distribution system.
The dc generator recharges the batteries and supplies electricity
while the engine is running. The do generator has a 200 amp per hour
capability.
There are seven electrical subsystems that receive electrical power
from the hull power distribution system. These seven subsystems are
as follows:
(1) Interior and exterior lighting
(2) Fuel system
(3) Starting and charging system
(4) Communication
(5) Fire suppression
(6) Ventilation and heating
(7) Bilge pumps
b.
When removing the vehicle ground cable, the FIRE SUPPRESSION
switch should be in the MANUAL position.
c.
To adjust the generator output voltage first unscrew the
coupling and remove the plug from the generator using electrical
connector pliers. Now reinstall the plug and align the mark with the
voltage position shown on the instruction plate.
Hold the mark in
the aligned position and install
37
Previous Page
