AD30 Underground Articulated Truck Machine Electrical System Head Light/Park Light Caterpillar


Head Light/Park Light
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Illustration 1g01001146

Head light/park light circuit

The components of the head light/park light circuit are the head light switch, the head light dimmer switch, the high beam relay, the low beam head lights, the high beam head lights, the stop/tail lights, and the front park/turn lights.




Illustration 2g00995539

Dash panel

(1) Head light switch




Illustration 3g00995540

Cab

(2) Head light dimmer switch




Illustration 4g00995541

Front view of machine

(3) High beam head lights

(4) Low beam head lights

(5) Front park/turn lights




Illustration 5g00995545

Rear view of machine

(6) Stop/tail light




Illustration 6g01010585

Front view of machine (front cover plate removed)

(7) High beam relay

With the battery disconnect switch in the ON position, 24 volt power is supplied from the batteries via circuit breaker #1 and circuit breaker #2 to the head light switch.

When head light switch (1) is in the ON position, 24 volt power is supplied to low beam head lights (4) and head light dimmer switch (2) .

With the head light switch in the ON position, the head light dimmer switch controls high beam head lights (3). When the head light dimmer switch is pushed down by the operator, 24 volt power is supplied to high beam relay (7). The high beam relay will energize and high beam head lights (3) and the high beam indicator will turn on.

With the key start switch in the ON position, 24 volt power is supplied from the batteries via circuit breaker #6 to the dash light option plug, front park/turn lights (5), rear tail light (6) and the dash lamps.

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