Operation - Section 3 OM3017.3 Page 3-30 Instrument Panel and Indicator Lights (67, Figure 3-8) HOURMETER (69, Figure 3-8) CIRCUIT BREAKER PANEL The hourmeter registers the total number of hours the engine has been in operation. Circuit breakers (Figure 3-9) are provided to protect various circuits from an excess current condition. If a malfunction in the circuitry occurs, the appropriate circuit breaker will open the circuit. After the circuit breaker cools, it can be reset by pushing the button. (68, Figure 3-8) OVERSPEED ALARM HORN (OPTIONAL) This alarm will sound when truck speed reaches overspeed setting. Dynamic Retarding and Dynamic Retard Indica- tor light will also come on.
Refer to speed grade decal in operator’s cab for correct speeds in downhill hauling. Report any faulty circuit that is protected by a circuit breaker, as serious damage may result from overcurrent conditions. FIGURE 5-9. CIRCUIT BREAKER PANEL 1. Hoist Limit (15 amp.) 6. Eng. Temp. & Fuel Gauges 10. Keyswitch to Starter Solenoid 2. Volt Meter / Turn Signal / (5 amp.) (10 amp.) Relay Coils / Status Lights 7. Drain Valve and Air Dryer 11. Windshield Washer (10 amp.) (15 amp.) Heater (5 amp.) 12. Alarm (see NOTE) 3. Heater Blower (15 amp.) 8. Lincoln Lube Timer (10 amp.) 13. Engine Service, Ladder Lights, 4. Dry/Slippery Road (5 amp.) 9. 12VDC Power Supply & Opt. Fog Lights (15 amp.) 5. Rad.
Pre-Charge Solenoid (Lower Right Side of Console) 14. Cigar Lighter (20 amp. Fuse) (5 amp.) (10 amp.) NOTE: Alarm Horn (12) alerts the operator of a malfunction within a system. When the alarm horn sounds during operation, a warning light will flash to provide a visual aid for determining which system is malfunctioning .