Inverted Roller Adjustment

[Jeeper44]

2001 Monaco Diplomat. It has the galley/sofa slide on the driver's side. When we bought the coach the tiles were broken where the rear inverted roller sits when the slide is retracted. Over the last couple of years more of the tiles around it have started breaking in a line. Is there an adjustment procedure for that particular roller? I understand it takes a lot of the weight of the galley when the slide is moving and stowed. It seems to me if the roller was raised slightly the galley would just tip down more and the weight on the roller really wouldn't change. Thinking it out a bit more another possibility is that roller is lower than the other inverted rollers so its taking more of the slide weight than it should. The only other thing I can think of is the subfloor is getting weak allowing too much flex. There's no signs of any water damage and the slide itself is in great shape.

Does anyone have a source for a match to the 8" off white tiles Monaco used in 2001?

[Will52]

Rollers can be adjusted it may a challenging to do. And the slide may need to come out?

[Jeeper44]

I got it adjusted so the slide works better. Then I sold it and bought a 2005 Knight