When I first got my 1-Ton I was delighted to see how easy it was to adjust the back brakes. Just put a wrench on the adjuster and turn it, clockwise to tighten and anti clockwise to loosen. Then I tried it and promptly stripped the teeth on the cam due to rust in the fine threads in the end caps of the wheel cylinder that had frozen tight. I ended up using a brass punch and a small hammer to get the end cap to move. When you put everything back together lightly lubricate the threads so that they can't rust up and it's a fine idea to carefully move the adjusters back and forth a little every so often.