In Reply to: Re: feeder chain off by one tooth posted by jeff on July 19, 2008 at 18:34:44:
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.