If the oil warning light does not go out after starting the stacker engine, what might be the cause?

If the oil warning light does not go out after starting the stacker engine, it is a critical indicator that there may be an issue with the oil level. Low oil levels can prevent the engine from receiving adequate lubrication, which can lead to serious engine damage. The oil warning light is designed to alert the operator when oil pressure is low, which typically occurs when the oil level is insufficient. This alert should prompt the operator to check the oil level and top it off if necessary before operating the equipment further to prevent any potential failure.

While other factors such as temperature, contamination, or a faulty warning light could affect the engine's performance or oil system, the most immediate and common cause for the warning light remaining on is indeed a low oil level. It's essential to address this issue promptly to ensure the stacker operates smoothly and safely.