PACCAR 579, 567 — Lights, Daytime Running (Override)

CONTROLS - Dash Switches Turn switch on for Auxiliary Lights. NOTE NOTE Lights, Beacon Vehicles having an air slide fifth wheel have a fifth wheel slider lock controlled by a switch on the instrument panel. By placing the switch in the unlock po- sition you can slide the fifth wheel to various positions to adjust weight dis- tribution. The generic air accessory switch is de- signed by the original equipment man- ufacturer to reset when the ignition power is turned off. When ignition is turned off, this circuit will exhaust air pressure. 3 Turn switch on for Beacon Light(s).

Lights, Daytime Running (Override) Fuel Heater Generic, Spare SPARE Turn switch on to power customer installed accessory. This switch overrides the normal operation of the Day Time Running Light (DRL) system. During normal operation the DRL will turn on lights when the headlights are turned off, engine is on and the park brakes are dissengaged. The override switch will turn the DRL off in these instances. The DRL is also turned off when the headlights are turned ON. Turn switch on to activate Fuel Heater. Ignition Key Switch Generic Air, Accessory The ignition key switch (located to the left of the steering column) has four positions: ACC (Accessories), OFF, ON, and START.

Provides accessory air to the end of frame connection when switch is turned on. Lights, Auxiliary Y53-6047-2HEN (03/18) 97