Re: OT--Trailer Brakes

Posted by Randy-IA on August 12, 2007 at 13:23:15 from (207.177.83.181):

In Reply to: Re: OT--Trailer Brakes posted by john in la on August 12, 2007 at 06:36:43:

And while the t-bolt idea can work it's not such a good idea depending on the condition of the air chambers . The spring pressure inside them is VERY high . The best way to do this is mentioned before , by airing the trailer up with your compressor , but don't go over 120 -130 psi . Otherwise chock the wheels and crawl under and look at the rod that comes out of the air chambers , follow it to the crank that moves the bar that goes into the brake , that crank is called a slack adjuster and looks like half a dogbone or a connecting rod in an engine , there should be a hex bolt sticking out the narrow side of the big end with a collar around it preventing you from putting a wrench on it . That collar is spring loaded to keep the hex bolt from turning so you need to push it back which sometimes requires a hammer and punch and some gentle hammering . If they are loose put the box end 9/16th's on it and watch the brake linings in the drum . Turn the bolt in whatever direction is needed to make the linings move away from the drums . It's really pretty easy once you look at it . If it's a newer trailer it might have self adjusters on it but they should work the same way . Good luck . BTW - The bolt might turn pretty hard . I'm assuming it's an older trailer since it's being used as a storage trailer but it still should work similar if it's a newer trailer ...Randy

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