Section XIII. ELECTRICAL SYSTEM - TM-10-3930-630-120066

TM 10-3930-630-12

Section XIII. ELECTRICAL SYSTEM

4-45.

General

CAUTION

a. This section provides organizational

Before attempting any replacement or repairs to

maintenance of the truck electrical system, except for

the electrical system, refer to paragraph 4-46

electrical applications of the instrument panel which are

and disconnect the battery ground (negative)

b. The electrical system is protected by three

cable.

fuses.

4-46.

Battery and Cables

A 10-amp fuse mounted beneath the instrument panel

protects the instrument system. The horn electrical

a. General. The battery is mounted at the

system is protected by a 20-amp fuse mounted on the

same fuse holder as the 10-amp fuse described above.

front of the engine compartment. It stores electrical

Lights are protected by a 20-amp fuse mounted in a

energy and supplies power to start the truck engine and

fuse holder which is part of the cable supplying the

operate the lights and instruments.

b. Inspection.

headlight.

c. To further understand the electrical system,

(1) Lift seat up and tilt seat and support

refer to figure 3-1. This electrical schematic diagram

forward

illustrates the system and shows interconnections and

(2) Lift seat prop from right side of

routing.

compartment and install prop to hold seat in an open

position.

(3) Inspect battery (fig. 4-28) for good

condition and any evidence of leakage.

Figure 4-28. Battery, installed view.

4-38