Posted by John in La on November 16, 2013 at 06:20:01 from (96.33.136.54):
In Reply to: Semi brake question posted by notjustair on November 15, 2013 at 17:40:30:
Some good answers but most are dealing with brakes to tight or stuck pieces. And yes it is true that if one brake is sticking it will smell. Most times if it is bad enough to smell it will smoke also on longer distances.
Your truck could also not be proportioning the air supply equally between the truck and trailer causing on to be doing most of the stopping.
With all that said it could be just a simple adjustment problem. We had a trailer that if you used the foot valve the rig did not seem to be stopping well. On the other hand if you cranked down on the hand valve the trailer brakes would smell and smoke would pour out. The trailer brakes were out of adjustment and the throw of the chamber was not allowing them to apply fully. So while the trailer brakes would apply hard enough to heat up they were not applying hard enough to cause any real stopping power. Same thing happens to a truck going down a mountain. The brakes that are not adjusted tight enough are the first ones to smoke.
So we got to ask. How much throw do you have on the shaft where it comes out of the chamber.
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