Figure 1-10. Electrical System -726250065

TM 9-2320-364-34-1

Figure 1-10. Electrical System

Electrical system (Figure 1-10) power is provided by four 12-volt series-parallel connected batteries (1). PLS trucks

are either equipped with the dual voltage control system (DUVAC) and a 145 AMP alternator or the polarity protection

system and a 200 AMP alternator. The DUVAC (2) delivers up to full alternator output on demand to either the 24 volt

load, 12 volt load, or any combined load requirement from a single alternator. The DUVAC system can maintain

battery equalization and balance even when the batteries are not matched or when they are in different charge states.

Separate voltage regulation is provided for each battery bank. The battery box (3) is located on the left-hand fender

and vents to the truck exterior. This location provides protection from the environment and allows ready access for

service. The fiberglass battery box cover is designed to prevent short circuits during maintenance and operation.

Power is distributed throughout the truck by wiring harnesses. The harnesses are interconnected by pin connectors.

Connectors are provided at the rear of the truck to supply power for towed loads.

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