Join Date: Aug 2012
Location: South Central Manitoba
Mentioned: 0 Post(s)
Quoted: 167 Post(s)
I ran into a situation like that on the feeder chain of a 7721. Everything looked fine with the restricted view of the feederhouse, but when we finally broke the chain (after a couple lower shafts that drive it) we discovered that the gears were not in alignment. It was caused when the PO installed 1 or 2 of the gears backwards on the shaft. I suspect if there are no stripped keyways, that someone may have installed one or more of your spiders backwards and changed the orientation to the shaft.