Dave H (MI)
Well-known Member
Headed for Chicago for a few days. Before leaving I thought I would run a sample and get her tested at the elevator. I have a recurring problem with the 863 corn head I thought I would bounce off the experts. Third row from the left and the left side of the row looking down from above. The chain will stop running periodically. Did it several times last season. Already did it once this year just running a few bushels for a sample. Here is what happens and what I have done to fix it:
Seems like a simple thing. You have a drive sprocket and a driven sprocket and a chain that runs around them. The roll pin on the drive sprocket keeps shearing. At first I thought it was flying out so I put a strong wire thru the center and twisted it in place...gone. Tried a bolt, broke. Near as I can tell, the only thing that could cause this is something jerking the chain. So I replaced both sprockets just in case a tooth or two was hooked and catching the chain. This did not work. I do not remember if this is a new chain or not. When I get back I am going to look under there and see if the snoot is able to rattle down into the chain at any point (like when I raise and lower the head). I cannot find anything else. Like I said, it is all new except possibly the chain. It is not a hard repair to replace a pin, but it is a REAL nuisance to keep driving in to the shed almost daily. I'm a one man show these days with both kids at school. I cannot afford the down time. Just wondering if anyone has any thoughts.
Seems like a simple thing. You have a drive sprocket and a driven sprocket and a chain that runs around them. The roll pin on the drive sprocket keeps shearing. At first I thought it was flying out so I put a strong wire thru the center and twisted it in place...gone. Tried a bolt, broke. Near as I can tell, the only thing that could cause this is something jerking the chain. So I replaced both sprockets just in case a tooth or two was hooked and catching the chain. This did not work. I do not remember if this is a new chain or not. When I get back I am going to look under there and see if the snoot is able to rattle down into the chain at any point (like when I raise and lower the head). I cannot find anything else. Like I said, it is all new except possibly the chain. It is not a hard repair to replace a pin, but it is a REAL nuisance to keep driving in to the shed almost daily. I'm a one man show these days with both kids at school. I cannot afford the down time. Just wondering if anyone has any thoughts.