[mnhoff]

Do all Newells have automatic slack adjusters or did the earlier units have to crawl under and manually adjust?

[Fulltiming]

My 1992 has to be adjusted every year.

[cubeman]

The majority of problems with being out of adjustment has been with foundation brakes themselves, not the slack. Worn s-cams, s-cam bushings, return springs, etc. Any of those issues will prevent a slack from adjusting properly