The Gas Circuit Is Damaged. Don'T Rush To Stop? It Will Be Easier To Do So

When a circuit in the braking system is damaged, we should drive to a nearby maintenance point for maintenance after confirming that other parts are undamaged. Why?

Let’s first understand the “protection device” four circuit protection valve in the braking system. After understanding, we will know why we are not in a hurry to stop when a circuit in the braking system circuit is damaged!

1. The four circuit protection valve (hereinafter referred to as the four circuit protection valve) is composed of multiple pressure limiting check valves (usually four) arranged according to a certain relationship, and some of them are appropriately attached with other functional mechanisms, so as to realize the separate supply of air source in the braking system of commercial vehicles and ensure the independent and normal operation of each circuit
2. In the four circuit braking system, if one or more circuits fail, the braking air pressure of the intact circuit can be maintained.
3. If you see that the air pressure in the front axle circuit is low (air leakage), other circuits can still supply air. If you see that the air pressure in the rear axle circuit is gone, stop the vehicle in time and use the remaining braking efficiency to stop the vehicle in a safe area in a short time circuit is damaged of  circuit is damaged.
4. Warm tip: when the front axle of the four circuit protection valve is damaged, the brake pressure of 6.5 pressure can still be retained in other circuits, and the brake is still effective!