Frederick T Haas
Member
I have a 2012 wilkens walking floor trailer, we have put new drums, and new shoes on it and even after adjusting the brakes will not hold a loaded trailer. Any help resolving this problem would be appreciated.
Strange.... couple questions first. Has Automatic slack adjusters? It should have. 2 Are you experienced with this type of brake work? Is a picture of the brake shoes, drum, brake pot and slack adjuster with brakes released available?I have a 2012 wilkens walking floor trailer, we have put new drums, and new shoes on it and even after adjusting the brakes will not hold a loaded trailer. Any help resolving this problem would be appreciated.
I does have automatic slack adjusters, I have done some brake repairs, but I'm no mechanic. I have done some further trouble shooting, and 3 of the S cam shafts have some play in them at the bushing, could this be the problem? Everything else seems to be working properly.Strange.... couple questions first. Has Automatic slack adjusters? It should have. 2 Are you experienced with this type of brake work? Is a picture of the brake shoes, drum, brake pot and slack adjuster with brakes released available?
Yes, the parking brake does not hold, stroke is good on all of them, however there is some play in 3 of the bushings, not major, but some. We are thinking this could be the problem.When you say hold a loaded trailer are you talking parking brakes ? If so the springs may be broken in your brake cans take the rubber plug out shine a light in for a look run your finger in the spring checking for breaks given that they still rely on the foundation brakes to be in good working order have someone apply the brakes and measure the stroke, look for wore s cam bushings brake can mounts rusted and flexing
I will check that out, but just wondering, will the brakes look like they are working with a spring broke?Parking brake side of the brake chambers is more than likely bad. Moisture, and dirt will cause them to
rust the killer spring inside and eventually it breaks. Average life of a brake can is 4 to 6 years and those
start to fail.
They do seem to hold better with the jonny bar, but no totally. I guess I better check the springs. Thanks for the info.Will the trailer hold with the jonny bar on the brakes? If it does it would confirm the springs being broken
I will check that out, but just wondering, will the brakes look like they are working with a spring broke?
What for? those air chambers are more than likely original equipment. 11 years old.
I have done some brake repairs, but I'm no mechanic.
A couple of the chambers have been replaced, I am not a mechanic but I do know how to adjust the brakes, and they are properly adjusted. They are automatic, but I have found that even these need adjusted ocassionaly, but I don't like messing with the chambers, or s cam bushings, the boss has decide to take it to a shop. Thanks for all the responses, I appreciate them.We have trucks and trailers that are almost 20 years old, and have never had to replace a chamber due to a rotted spring. Not saying that isn't his problem, but I'd sure as heck be verifying that he has the slacks properly adjusted before assuming the chambers are shot. By his own admission, he says he isn't a mechanic.
Our trailer hauls garbage to a landfill, so they take a lot of mud, and other debris, 2 of them have been replaced, but not recently.We have trucks and trailers that are almost 20 years old, and have never had to replace a chamber due to a rotted spring. Not saying that isn't his problem, but I'd sure as heck be verifying that he has the slacks properly adjusted before assuming the chambers are shot. By his own admission, he says he isn't a mechanic.
Brake chambers packed full of mud under the piston.Our trailer hauls garbage to a landfill, so they take a lot of mud, and other debris, 2 of them have been replaced, but not recently.