Operation - Section 32 OM3226 Page 32-12 Operator Cab and Controls CONTROL SWITCHES AND GAUGES FIGURE 32-11. PANEL, GAUGES, INDICATORS, AND CONTROLS 1. Key Switch 2. Timer Delayed Engine Shutdown Switch 3. Fog Light Switch (Optional) 4. Ladder Light Switch 5. Backup Light Switch 6. Panel Illumination Lights 7. Vent(s) - Cab Air Conditioner/Heater 8. Engine Cold Weather Starting Aid Switch (Optional) 9. Rotating Beacon Light Switch (Optional) 10. Heated Mirror Switch (Optional) 11. Not Used 12. Wheel Brake Lock Switch 13. Parking Brake Switch 14. Digital Tachometer 15. Right Turn Signal Indicator Light 16. High Beam Headlight Indicator Light 17. Left Turn Signal Indicator Light 18.
Digital Speedometer/Payload Meter Display 19. Voltmeter Gauge 20. Engine Oil Pressure Gauge 21. Engine Water Temperature Gauge 22. Fuel Gauge 23. Gauge - Not Used In This Application 24. Engine Hourmeter 25. Gauge - Not Used In This Application 26. Switch - Not Used In This Application 27. Headlight Switch 28. Panel Illumination Lights Dimmer Rheostat 29. Payload Meter Switch Key Switch Key switch (1, Figure 32-11) is a three-position (OFF, RUN, START) switch. When the switch is rotated one position clockwise, it is in the RUN position and all electrical circuits (except start) are activated.
With the selector switch in neutral, rotate the key switch fully clockwise to the START position, and hold this position until the engine starts. The START posi- tion is spring-loaded to return to RUN when the key is released. With the truck stopped, turn the key switch counterclockwise to OFF for normal engine shutdown. Use the engine shutdown switch on the center console if the engine does not shut off with the key switch. NOTE: A ground level shutdown switch is located on the lower, front left side of the truck.