2010 337 Pete Brakes keep backing off and needing adjustments.

That sounds like the pawls in your autoslacks are shot. When the mechanism that holds the slack in adjustment gets worn they will back off when you apply the brakes. Is it just on or two that are doing this?

 

Oh and DOT says that auto slacks are to be adjusted when installed and you are not supposed to touch them again. They are designed to adjust the clearance or stroke on their own. You will have to replace the bad ones.

 

you must put self/ADJ back on the front re/ smart/### inspector might put you OSS.

 

That's why you have to adjust them. They're manual slacks not automatic. They should be adjusted at the beginning of the day when you do your pretrip inspection. Although on a 2010 they're illegal. Anything after 10/94 must have automatic slacks.