It is normal practise to hold the train using only the independent brake, or locomotive brake as you call it, when you are stationary, and release the train brake. But the brake line can easily leak a bit, after all there is a lot of quick connectors between each car, and any one of those can leak a little. Therefore air leaks the most while train brakes are off.
I don't know the specifics of american railroad brake equipment, but i DO know they use an automatic brake valve on each car. That means to release train brakes you need high pressure in the brake line usually 90 psi. To engange brakes you lower this pressure, this causes each valve on each car to activate and put pressure into the brake cylinders. The air is taken from a reservoir on each car that refills when you release the brakes by raising the pressure again.
he has the locomotive brake fully applied , with the train brakes set to continious service. the compressor usely does not stay on that long without both brakes fully applied. (hopefully he had 4 to 5 handbrakes set as well:)
It is normal practise to hold the train using only the independent brake, or locomotive brake as you call it, when you are stationary, and release the train brake. But the brake line can easily leak a bit, after all there is a lot of quick connectors between each car, and any one of those can leak a little. Therefore air leaks the most while train brakes are off.
randknu 1 year ago
I don't know the specifics of american railroad brake equipment, but i DO know they use an automatic brake valve on each car. That means to release train brakes you need high pressure in the brake line usually 90 psi. To engange brakes you lower this pressure, this causes each valve on each car to activate and put pressure into the brake cylinders. The air is taken from a reservoir on each car that refills when you release the brakes by raising the pressure again.
randknu 1 year ago
he has the locomotive brake fully applied , with the train brakes set to continious service. the compressor usely does not stay on that long without both brakes fully applied. (hopefully he had 4 to 5 handbrakes set as well:)
negerpungrally2 2 years ago