Part C- Recognition of the New Charging System

Figure 1-11. Model X200 -4 cross drive Transmission

Figure 1-13. M113A3 Batteries andChaging System.

Introduction To The M113a3 Armored Personnel Carrier
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This completes part B.

Part C describes and illustrates the M113A3

charging system.

PART C - RECOGNITION OF THE M113A3 NEW CHARGING SYSTEM

M113A3 Batteries and Charging System.

The M113A3 electrical system provides the power for the carrier. The

system operates on four wet cell batteries and includes charging,

regulating, and monitoring equipment. The batteries provide a normal

24 volts with an amperage capability of 200 amperes per hour.

The

batteries supply the carrier with electricity when the engine is not

running and are stored in the battery compartment at the left rear

side of the carrier personnel compartment.

The distribution box, located on the left side of the driver's

compartment,

distributes

all

electrical

power

the

APC

uses.

Electrical power flows from the batteries through the distribution

box, cables, and wiring assemblies to the electrical equipment, with

the hull serving as the ground for the electrical system.

alternator, with a 200 ampere per hour capacity, recharges the M113A3

batteries when the engine operates.

The alternator mounts on the

lower right side of the engine and is driven by a belt attached to

the engine crankshaft pulley.

A voltage regulator, located in the

driver's

compartment,

regulates

the

voltage

provided

the

alternator to the carrier's batteries (fig. 1-13).

You can easily troubleshoot the charging system by connecting the

STE/ICE to the DCA located in the driver's compartment. Figure 1-13

illustrates the location of the regulator, the power distribution

box, the batteries, the alternator, and the wiring harness.

M113A2 Batteries and Charging System.

The M113A2 electrical system operates with two 24-volt batteries, a

100 or 200 ampere generator (depending on requirements), a generator

voltage regulator, and a master switch panel (power distribution).

The batteries are located in a compartment at the right rear portion

of the personnel compartment.

The generator mounts on the right rear portion of the engine and is

driven by a belt attached to a pulley on the transfer

OD1712

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