eli5 Why do trucks and busses do the “tsshhh” thing when they stop?
In: Engineering
Automatic air dryer. Let’s a spit of air out of the primary air tank. It connected via piece of quarter inch tube to the air governor on the air compressor so when the air governor shuts off the compressor it sends a signal to the dryer.. before that we used to have a valve on the bottom of the tanks with the cable you pulled.. before that we just had a petcock you had to open by hand. Before that we just had a tank full of water.
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