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blowing brake lines on trailer

rockyridgefarm

rockyridgefarm

Well-known Member
Hey all,

I have a trailer with Dexter electric over hydraulic brakes, Dexter axles. I bought it new fall 2015. I just finished fixing a brake line for the third time since I bought it. It breaks them right at the flare. The lines and everything is still in great shape and I never overload the trailer. Is this something that I am causing? I turn the gain down when I am unloaded and turn it up when loaded heavy. I have 19,000 lbs of hay on right now to deliver Monday. I probably put 5,000-8,000 miles on the trailer a year.
 
Disc or drum. Disc brake calipers move and some people run steel lines to them,then they have to break sooner or later.
The second thing that comes to mind is single flairs instead of double flairs.
 
Where on the trailer are the lines breaking?
Stress on the lines maybe?
Poor flares out of the gate maybe?
Carl
 
If the flair is breaking it is likely flexing. I would put a stainless steel braded line in place of the original. Google braded
steel brake lines. Jim
 
They have all been breaks pretty much flush with the threaded head, so vibration is probably the answer. I wonder if i should be mounting some sort of cradle and wrapping them with pieces of rubber tubing to absorb some of the vibration

Thanks for all the input.
 
If your breaking the line at the flare are you using a SHORT NUT or a LONG NUT , The use of a LONG NUT will help along with a bracket and a clamp close to the fitting . Trailers have more stiffer rides then a car or truck and stuff receives more shock on the humps and bumps . Usually on a new brake line you get one short and one long nut always use the long nut where the most vibration maybe as say one fitting is mounted to the frame and there is a bracket that holds the line solid close to the frame mount then use the short nut and if where they tie to the next part ther is a good distance between frame mounting where the line can flex and vibrate use the long nut there.
 
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