What is the acceptable range for governor cut-out pressure during the air pressure governor testing?

The acceptable range for governor cut-out pressure during air pressure governor testing is crucial for ensuring the safe and effective operation of the braking system in commercial vehicles. The range of 115 to 135 p.s.i. is considered optimal because it reflects the pressure thresholds that allow the governor to function reliably, ensuring that the air system maintains adequate pressure to engage the brakes effectively when required.

This range ensures that the brakes can be applied with enough force and are responsive under various operating conditions. If the cut-out pressure is too low, it may lead to inadequate air supply for braking, posing significant safety risks. Conversely, if the cut-out pressure is excessively high, it may lead to unnecessary wear on the system and could also pose operational challenges.

Choosing a range like 115 to 135 p.s.i. is based on established industry standards, which are designed to optimize vehicle safety and performance during operation. These criteria are in line with regulatory requirements that drivers and vehicle operators must adhere to for the safe operation of air-braked vehicles.