Why is it important to check the air pressure regularly in a dual-air brake system?

Checking the air pressure regularly in a dual-air brake system is crucial to ensure both systems are operational. A dual-air brake system is designed with two separate air systems to enhance safety and reliability. If one system fails, the other can still function, providing crucial braking power. Regularly monitoring air pressure confirms that both systems maintain adequate pressure levels for effective operation. Insufficient pressure in either system could compromise the vehicle's braking ability, increasing the risk of accidents.

While efficiency of the service brakes, preventing brake fade, and avoiding legal issues are significant considerations, the fundamental reason for checking air pressure is to guarantee that both the primary and secondary air systems are fully operational. This proactive maintenance helps ensure safety on the road.