Operation Section 1. Engine Oil Pressure Indicator Light - Indicates insufficient engine oil pressure. The light will come on when the ignition switch is turned to the ON position. The light should go off after the engine is started. If the light turns on while operating the lift truck, insufficient engine oil pressure is indicated. Park the lift truck and stop the engine. Check the system for a malfunction. The light will turn on when the oil pressure drops to approximately 70kPa (10psi). 2. Alternator Indicator Light - Indicates if the battery charging system is operational. The light will come on when the ignition switch is turned to the ON position.
The light should go off after the engine is started, indicating the alternator is producing sufficient voltage to charge the battery. If the light turns on with the engine running, check the alternator charging system for a malfunction. 3. Diesel Engine Start Preheat Indicator Light (Diesel Engine Only) - The light will come ON when the key is turned to the ON position from the OFF position. This indicates that the glow plugs are preheating the pre- combustion chambers for easier starting. The amount of time needed to preheat the pre- combustion chambers is approximately seven seconds, depending on the surrounding air temperature.
When the light goes OFF the maximum pre-combustion chamber temperature has been reached and the key can be turned to the START position to start the engine. 4. Diesel Engine Water in Fuel Filter Indicator Light - Indicates when the engine is running, there is water in the fuel filter exceeds 100cc. The light will come ON when the ignition switch is turned to the ON position. The light should go off after the engine is started. If the light turns on with the engine running, park the lift truck and stop the engine. Drain some fuel (and any water) until clean fuel flows from the filter which approximately takes 5 to 6 seconds. 5.
Fuel Level Gauge - Indicates fuel level (Gas, Diesel, or Dual Fuel Trucks Only) 6. Engine Coolant Temperature Gauge - Indicates coolant temperature. If both tenth & ninth flash out of phase while operating the lift truck, overheating is indicated. Park the lift truck and stop the engine. Check the cooling system for a malfunction. Both tenth & ninth will flash out of phase when the coolant temperature reaches approximately 106°C (223°F) on all engines. 7. Transmission Oil Temperature Gauge - Indicates transmission oil temperature. If both tenth & ninth flash out of phase while operating the lift truck, excessive transmission oil temperature is indicated.
Park the lift truck and stop the engine. Check the system for a malfunction. Both tenth & ninth will flash out of phase when the transmission oil temperature reaches approximately 80 to 100° C (175 to 220° F). 8. G420F(E) LP Engine Malfunction Indicator Lamp (MIL) - G420F(E) engine control system is equipped with built-in fault diagnostics. Detected system faults can be displayed by the Malfunction Indicator Lamp (MIL) as Diagnostic Fault Codes(DFC) or flash codes, and viewed in detail with the use of service tool software. When the ignition key is turned ON the MIL will perform a self-test, illuminate once and then go OFF.
If a detected fault condition exists, the fault or faults will be stored in the memory of the engine control module(ECM). Once a fault occurs the MIL will illuminate and remain ON. This signals the operator that a fault has been detected by the SECM. 9. Seat Belt Warning Light - Indicates when the seat belt does not fastened by operator. The light will come on when the ignition switch is turned to the on position the light should go off often engine is started. 10. Service Hour Meter - Indicates the total number of hours the engine and the lift truck have operated. The hour meter will operate when the ignition switch is in the ON position, whether the engine is running or not.
The hour meter is used to determine lubrication and maintenance intervals. 11. Parking indicator light - The light will come ON when the parking lever is applied. 12. Front Floodlights - Push down on the switch(17), to the first step, to turn the front floodlights on. Front and Rear Floodlights - Push down on the switch(17), to the second step, to turn both the front and rear floodlights on. The floodlights are optional. 38