When should the red gear oil be checked?

Checking the red gear oil at multiple points, specifically before starting, at idle, and 20 minutes after securing the engine, is crucial for several reasons.

First, checking the oil before starting ensures that the system has adequate lubrication when the engine is first cranked, which is vital for preventing wear and damage due to insufficient lubrication. Next, monitoring the oil level and condition at idle offers a clear assessment of how the oil circulates through the system under operating conditions, helping to identify any potential anomalies or leaks that could arise during normal operation.

Lastly, checking the oil 20 minutes after shutting down is important because it allows for the oil to settle. This provides a more accurate reading of the oil level and condition when there is no agitation from the running engine, which can affect the visibility of the oil's true level if checked immediately after shutdown.

This comprehensive approach ensures the smooth operation of the gearbox, promotes longevity, and allows the operator to catch potential issues before they become significant problems, contributing to the overall reliability and safety of the vessel.