Mystery solved? I think I have the wrong belt from Felder. I checked planarity as best I could (can't say it was a great check, but nothing seriously out of wack) and remounted the belt again. I noticed the belt seemed a little proud on the outside edge. this pic shows the scoring blade drive and the idler. I dont know much about belts, but I think I can count. The belt has 7 ribs, but the pulleys only have 6 landings. Unless someone here can tell me otherwise (like - "it's fine like that"?), I'll see if I can get Felder to replace with the correct part.
Ron
p.s. According to the parts manual and the Felder store, this is the correct part - so like I said, I don't know anything about belts. I can only assume now that it was hung wrong ("extra" rib on the inside on one pulley and outside on another).?
