IGNITION SWITCH.

TM 10-3930-623-12

1-39. SPOTLIGHT ASSEMBLY. The sealed-beam

1-41.

IGNITION SWITCH.

The ignition switch is

spotlight is mounted on the left hand hoist upright. This

mounted on the instrument panel. Setting the ignition

light is operated by a toggle switch mounted on the

switch to ON position energizes the ignition system and

instrument housing.

instrument panel gages.

1-40.

COMBINATION TAIL AND STOP LIGHT

1-42. SENDING UNITS. Three sending units on the

ASSEMBLY.

The tail and stop light assembly is

truck actuate instruments on the instrument panel. The

mounted within a steel guard on the upper rear of the

fuel gage sending unit is mounted atop the fuel tank.

engine compartment. The taillight operates when the

This unit consists of a float mounted on an arm attached

spotlight is turned on. The stop light is operated by the

to a sliding contact.

The position of the arm is

brake light switch when the-foot brakes are used.

proportional to the quantity of fuel. The slider shorts out

turns of a resistance winding to change the current in the

gauge circuit proportional to the fuel level, which is

registered on the instrument.

Figure 1-9. Drive Axle, Exploded View

1-10