CHUCK 4V3872 - Caterpillar

Keep the engine speed low until the engine oil indicator light goes out.If 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.
Steering the machine completely to the steering stops while the hydraulic oil is below 0 °C (32 °F) can damage the steering system.In temperatures below 0 °C (32 °F) work warm oil into the system by steering only a small amount at a time in each direction. Slowly increase the amount of each turn before steering completely to the steering stop.
Allow a cold engine to warm up at LOW IDLE for at least 5 minutes.
Cycle all controls in order to allow warm oil to circulate through all of the lines and the cylinders.Observe the following recommendations during the warm-up period for the engine:
In temperatures above 0°C (32°F), the warm-up period is 5 minutes.
In temperatures below 0°C (32°F), the warm-up period is 15 minutes or longer.
In temperatures below -18°C (0°F), more time is required if the hydraulic controls are sluggish.
Do not use the machine if the filter indicator is ON.
Do not operate the machine above LOW IDLE during the warm-up period. HIGH IDLE operation with cold oil can cause high back pressures in the hydraulic system. Wait for the hydraulic warm-up notification on the monitoring system to turn off before operating the machine at HIGH IDLE.