CORE AS-OIL COOLER 3752987 - Caterpillar

Keep engine speed low until the engine oil pressure registers on the gauge or the engine oil indicator light goes out.If the gauge does not register or the light does not go out within ten seconds, stop the engine and investigate the cause before starting again. Failure to do so, can cause engine damage.
Allow a cold engine to warm up at low idle for at least five minutes. Engage the implement controls and disengage the implement controls in order to warm up the hydraulic component. Cycle all of the controls in order to allow the warm oil to circulate through all of the cylinders and lines.
Look at the hydraulic oil tank and the transmission oil levels. Maintain the oil levels to the "FULL" marks.
Frequently look at the action light and the gauge display during operation. Elevated Low Idle
If the jacket water coolant temperature is less than 70 °C (158 °F),the ECM will set cold start conditions. The brakes must be applied and the machine must be in low idle. The system will activate after ten minutes. Low idle RPM may be increased to 1000 RPM, and engine power will be limited. Ether may be injected by the ECM, if necessary. Cold Mode will be deactivated when the engine is above 60 °C (140 °F) or after 14 minutes of running.Elevated low idle can be disabled by placing the transmission in gear from neutral or by releasing the parking brake. Cold Mode may reactivate if the temperature conditions still exist, and the transmission is not in gear. Cold Mode also varies the fuel injection amount and timing for white smoke limiting.