How do you tell if air compressor is bad on Detroit 60 series?

To determine if the air compressor on a Detroit 60 Series engine is bad, check for signs of air leaks, unusual noises, or poor performance in air pressure. Inspect the compressor for oil leaks and ensure that it maintains the proper air pressure levels during operation. Additionally, listen for excessive noise or vibration, which could indicate internal damage. If performance issues persist despite these checks, consider having it tested or replaced by a professional.