BUCKET AR-GP 3841700 - Caterpillar

If no oil pressure is indicated, STOP the engine. The engine will be damaged from operating without oil pressure.
Engine Oil Pressure - This gauge indicates the pressure of the engine lubrication system. Engine oil pressure will be highest after a cold engine has been started. The engine oil pressure will decrease as the engine warms up. The typical range of engine oil pressure at rated engine speed is 275 to 606 kPa (40 to 88 psi). A lower oil pressure is normal at a lower engine speed. If the load is stable and the gauge reading changes suddenly, perform the following procedure:
Remove the load.
Reduce the engine speed to low idle.
Check the oil level or determine the cause of the change. If the engine oil pressure drops below a preset value, the Low Oil Pressure indicator on the control panel will turn ON and the engine will shut down. The GSC and the Electronic Control Module (ECM) will log the event in internal memory.
System Battery Voltage - This gauge indicates the current battery voltage that is being measured by the ECM. A diagnostic code will be generated by the ECM if the engine experiences a high voltage condition or a low voltage condition. Engine operation may be unpredictable if a system voltage that is within an acceptable range is not maintained.
Exhaust Temperature - This gauge indicates the engine exhaust temperature. Maximum exhaust temperature is approximately 575°C (1065°F).
Engine Oil Temperature - This gauge indicates the temperature of the engine oil. The GSC may be programmed to shut down the engine if an excessive engine oil temperature is experienced. Maximum oil temperature at rated speed with a full load is 107 °C (224 °F).
Engine Coolant Temperature - The typical range for the engine coolant temperature is 87 to 98°C (189 to 208°F). Higher temperatures may occur under certain conditions. The engine coolant temperature reading may vary according to load. The maximum allowable temperature with a pressurized cooling system is 107 °C (224 °F). The reading should never exceed the boiling point for the pressurized system that is being used. The GSC may be programmed to shut down the engine if an excessive engine coolant temperature is experienced. If the engine is operating above the normal range and steam becomes apparent, perform the following procedure:
Reduce the load and the engine speed.
Inspect the cooling system for leaks.
Determine if the engine must be shut down immediately or if the engine can be cooled by reducing the load.
To help prevent engine damage, never exceed the high idle rpm. An overspeed can result in serious damage to the engine. The engine can be operated at high idle without damage, but the engine should never be allowed to exceed the high idle rpm.
Tachometer - This gauge indicates engine speed. When the speed control is set to full throttle without load, the engine is running at high idle. The engine is running at the engine full load speed when the speed control is at full throttle with maximum