Like so many with the HWH cascading steps I finally had to do the upper rail reinforcement weld repair. Other than having to be a contortionist to get up into the step well to get the upper rail out it was fairly easy.
I did find something interesting upon disassembly. A little back story, my steps seem to be very sloppy, kind of duck walking and moving side to side when extending which was cause by the slop in the upper rail. Even with the steps fully deployed I could grab the bottom of the steps and there was a lot of side to side movement at the upper rail.
When I was disassembling the steps there was a long shim the fell out that was in-between the upper rail mount and the frame (Pic Attached)
Trying to figure out why this would be there I realized that this shim was spacing the upper rail out away from the frame and it was causing was the upper rail to move outwards from the step assembly which was causing the slop.
After the reinforcement repair and putting it all back together I decided to leave that shim out and boy I am glad I did. I can not believe the difference it made in the operation. No more duck walking and no more side to side slop. I thought it was always strange that the guides on the upper rail hung out of the track some and removing the shim fixed it.
I also adjusted the hydraulic pistons so they have a little more out force on the steps when fully extended so they are taking some of the load when you step on them thus relieving some of the stress on the upper rail. I cleaned all the tracks and rails using a red scotch bright then 000 Steel wool to polish them up and finished with dry silicone to give the guides a nice smooth service to glide on. And now the steps have never worked better, they are quite, don't wobble and seem real solid now.
I want to give a shout-out to ewlee for posting instruction on removing the upper rail without removing the entire step assembly, it made it a much simpler project. You can find it here, post #14 https://www.irv2.com/forums/f103/hwh...84949.htmlpost