ROADING AR 4976262 - 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.