-
Three axle alignment- not
Sitting in Goodlettsville now, learned something new after 10 years of ownership. There is no adjustment on the drive and tag axles for alignment on my vintage. The tech said all they can do is cut the radius rods that locate the axles and reweld them back together hoping they get it right. Since this was an effort to do the right thing even though I had no symptoms, I passed.
They did find some play in the drag link ball joints, but they did not have those parts in Goodlettesville. So that will be a diy project when I get back home.
My first time here, it is a very nice facility, been open about eight years. Branch Manager says it is the companies biggest service center.
-
5 Replies
-
As I understand this….the adjustment is on the drive axle where it’s bolted to the frame. Using shims to set equal tracking related to front axle. Helping to understand …way out of adjustment sometimes referred to as “dog tracking”.
In many of the Marathons cabinet build outs and tank mounts interfered with access to bolts when shims needed to be added or subtracted. As in any alignment there is always a degree of tolerance the tech must deal with.
I had the 3 point alignment done at Nashville. My OEM shims no adjustment was needed but access to both inside bolts would have been a issue caused by convertor boxing the bolt heads in.
-
Yes Al, your understanding is consistent with what the tech explained to me on chassis that are adjustable. Adjustability did not start he said until a couple years after mine.
On to Jeff’s tomorrow.
-
As I’ve posted before, our coach wandered between the lines on the Interstate from the very first time I drove it. Thinking it was a problem with the steering box I was headed in that direction for a “fix” until I mentioned the problem to Peter Campbell while I was at ETLC a few months after we bought the coach. He explained to me what was causing the problem (not the steering box) and that I needed a three axles alingment which I had done at Prevost Jacksonville. Tech showed me how “far out” my drive axles were (“someone” had misaligned the drive axle after the caoch left the factory and before I bought it). Solved the problem.
Interesting (and frustrating) that the axles on the older coaches can’t be adjusted. You’d think that radius rods would have adjustable rod ends on them. Maybe someone from Prevost will jump in and explain the logic of the older coaches.
-
Gentlemen,
I am gathering some information on your question and will answer it as soon as I get that information.
Thanks!
-
I had my 1991 H340 at Nashville in October for the 3 axle alignment and had no issue with the job. My tags were off about .5 inch and they corrected this issue. Drives were within tolerance but could have adjusted if needed. Had to replace the tie rod in front due to rusted ends that could not be adjusted. The adjustment and the Centramatic balancers from Jeff made it drive like a new coach.
Log in to reply.