What is the required air pressure for cut-in and cut-out testing in vehicle inspections?

The required air pressure for cut-in and cut-out testing in vehicle inspections is set within the range of 80 - 145 psi. This range is critical for ensuring that the vehicle's air brake systems are functioning correctly.

Cut-in pressure refers to the point at which the compressor starts to pump air into the system to build pressure, while cut-out pressure is when the compressor stops once the maximum air pressure is reached. Maintaining these pressures is vital for the safe operation of the vehicle, as improper air pressure can lead to brake failure or inefficiency.

The specifications for air pressure are established to ensure that vehicles meet safety standards and operate effectively under different conditions. This testing is a crucial part of vehicle inspections, as it helps prevent potential accidents caused by inadequate braking performance. Using the correct air pressure range ensures compliance with regulations and contributes to road safety, making it essential knowledge for those involved in vehicle maintenance and inspection.