Scottscoaled wrote:That min.serv. 19? threw me for a loop. Mine says min. serv. 400. Mines a 520 so I assumed the Fitsgibbons was an old 350. It's not. Anyway, it has a spacer plate for a 350 on the stoker. It holds the stoker farther out from the base. It changes how the auger and tube fits in. It pushes up on the tube and makes the auger tight to begin with. Could be a major reason for the pins shearing.
I think SVRC in that pic is 134 and I found a pic of a COBCO 520 that had SVRC of 155. I think both are light - would have expected 166+. Maybe somebody forgot the big pickup factor EFM used for rating. 400 sounds like something in the 900-1300 range.
Spacer plate moves pot toward mounting side by 1"? So it would push up on the auger tube by approx. rise/run of auger pipe x 1" = 3/16" where tube passes through opposite side of base? I agree it's worth checking, but not sure if it is significant for the pins..