BEARING-MAIN-YM 3769079 - Caterpillar

Keep engine speed low until the engine oil pressure registers on the gauge or the engine oil indicator light goes out.If it 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.
You can begin to operate the machine with a reduced load.
When the oil pressure reaches the normal operating range and the temperature gauge begins to move, you may operate the machine at full load.
Illustration 1 g00696047
Monitor the lights and gauges frequently during operation.
Check oil levels in the power train, the engine, and the hydraulic systems when the oil is at operating temperature. Maintain the oil levels to the FULL marks.