I bought a used RO150 off eBay. Knew it needed some parts and got them ordered. Got the parts in and installed and now I don't know if the sander is working right. Very hard to control on rotex mode even on the lower settings. I was just messing around sanding a piece of maple and it was jerking all over the place. This is with not dust extraction hooked up. Random orbit mode seems ok but not really sure what normal for this sander is. Definitely more effort to control than my ets 125. Just seems to be a lot of vibration. I don't mind sending it back to festool for them to check but I just wanted some advice first. Here are some links to some videos I took of the pad moving around.
This is rotex mode
This random orbit
Thank you
This is rotex mode
This random orbit
Thank you