header bg

Question:

When operating a vehicle with a dual air brake system, the driver should:

A Let the air compressor build up a minimum of 100 psi pressure in the primary and secondary systems before driving.
Explaination

Before driving a vehicle with a dual air brake system, allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems. Watch the air pressure gauges to monitor the pressure levels.