Combines feeder chain off by one tooth

[jeff]

loosen the chain and then take 1" deep socket or something of the like and slip it between the sprocket and the offending chain probably the right side. Now roll the chain backward and walla. If it is the rear chain tie some string or something to the socket so you can find it. To the cause, could be wore chain or out of adjustment. They told us at the Hesston plant to tighten a little more than the book called for. I think the book says 5.2" on the spring length. There are also stripers to install at the back of the chain that are supposed to help. Side note a striper never helped me with anything. I was told today at the 4 State Farm Show that the new 6 series will have the hyper mod to improve flow between chains.

 

[NDDan]

Normally a guy wouldn't need to even loosen chain. We us a 1_2" bolt with string tied to it or be ready to catch it when it comes around sprocket. Insert between chain and sprocket on run of chain that has jumped. You should be able to feel where chain is slack. Normally left bottom as sitting in cab. Slowly pull over belt as you feed just enough bolt in to cover chain link. Now check tention of chains (front and rear). A loose back one can cause constipation between chains which can cause front chain to jump. We tighten the rear chain a couple tenthes tighter than specs on three strand systems (four strand systems are heavier and they all ready have you tentioning chain at 4.8"ish range). A white mark that lines up with washer pushing on spring will make checking chain tentions a snap. If continuing to jump chain you need to check all belt tentions associated with feeder, check floor area completely to be sure there isn't mud and or floor wearing threw and snaging straw, if in corn you may need rear feed stripper (we only would us it in corn),check square tube in front feeder to be sure there are no arrows bolted to or welded to the bottom of it, and if it is a 2 series especially if '93 or newer you would benifit from floor mod job. '08 machines have the floor mods done. 6 series could be refined but from what here the '08s are doing great.

 

[bucko]

I am not sure if it would be helpful or not in this case, but there is a tip on the hypermods website under the feederhouse link that may be of interest.