OM3037 Operation - Section 3 Operating Instructions Page 3-23 INSTRUMENT PANEL The operator and service technician must understand the function and operation of each instrument and control. Control functions are identified with “International” symbols that the operator should learn to recognize immedi- ately. This knowledge is essential for proper and safe operation. Note: Items that are marked OPTIONAL do not apply to every truck. FIGURE 3-6. INSTRUMENT PANEL GAUGES, INDICATORS & CONTROLS 1. Keyswitch 2. Engine Shutdown Switch with Timer Delay (Optional) 3. Fog Light Switch (Optional) 4. Ladder Light Switch 5. Backup Light Switch 6. Panel Illumination Light(s) 7.
Vent(s) - Cab Air Conditioner/Heater 8. Engine Starting Aid Switch (Optional) 9. Rotating Beacon Light Switch (Optional) 10. Heated Mirror Switch (Optional) 11. Blank - Not Used In This Application 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 19. Voltmeter Gauge 20. Engine Oil Pressure Gauge 21. Engine Water Temperature Gauge 22. Fuel Gauge 23. Blank(s) - Reserved For Future Options 24. Engine Hourmeter 25. Blank - Not Used In This Application 26. Blank - Not Used In This Application 27. Headlight Switch 28.
Wiper / Washer Switch 29. Panel Illumination Lights Dimmer Rheostat 30. Payload Meter Switch