Posted 11/30/2012 06:41 (#2724548 - in reply to #2723991) Subject: Re: Adjusting semi and trailer air brakes
halfway between Lapeer and Port Huron, MI
I always snug down and back off a 1/4 may be go 3/8 on steer axle, do this on my trucks and lots of school buses. DOT goes by CVSA specs 2" max on short stroke chambers 2 1/2" on long strokes, short strokes are round where the hoses thread in, longs are square.
Adjusting semi and trailer air brakes
