What do you have to regularly check on the air compressor?

You answered correctly. On the air compressor, it is important to regularly check the pressure line connection and the V-belt. The pressure line connection must be secure to prevent air leaks and maintain system pressure. The V-belt transmits power to the compressor, so it should be checked for proper tension, wear, or damage to ensure reliable operation. The speed governor, answer 3, is not typically a part of the standard air compressor checks for drivers. This will help you maintain the air brake system's safety and reliability. Make sure to regularly inspect these components as part of your routine vehicle checks.