Posted by Bob Kerr on December 09, 2007 at 07:32:34 from (64.12.116.73):
In Reply to: IHC Thresher Belting posted by Alek Salka on December 07, 2007 at 09:18:59:
You mush have the tractor pulley lined up with the machine drive pulley. If it is off, it will walk the belt off when under load and you don"t want the belt coming off on the inside near the tractor. I get the tractor straight and Almost to the point where the belt will be tight, then have someone slip the belt on the tractor pulley and back up the rest of the way till its tight. I also have someone block both rear wheels and set the brake. Also block the wheels on the machine Most threshers I have seen or ran need the twist in the belt. That was done on porpose! Wind can affect a non twisted belt easier that a non twisted belt plus there is more pulley- belt contact with a twist. Also a non twisted belt can slap it self when under a non constant load.That causes belt wear. The rub on a twisted belt is much less than the pressure of the slap on non twisted. Start running the machine slow and then throttle up gently to the working speed ONLY if the belt stays cetered on both pulleys. Old belts and machines don"t like shock loads. I ran a 32" JD thresher with my ol 10-20. There needs to be hand signals worked out for the person on the tractor (who must stay there while everything is running to quickly shut down in emergency like if someone tosses a pitch fork in with the wheat and it does happen!) and the lead man on the thresher. Depending on the tractor and thresher, proper pulley speed at the thresher must be checked or the grain won"t clean right(too slow) or it gets blown out the back with the chaff (too fast). One thing that is important! while that belt is turning, KEEP EVERYONE AWAY FROM IT! A belt can grab clothing and pull you in! If the belt has lacing or not. Static electricity will also build up so if the thresher and tractor has rubber tires drop a chain off both machines to the ground. On steel wheels static isn"t much of a problem but it still happens. My Grandpa when he was a teenager got too close and static pulled his clothes in and the belt lacing snagged them,and it pulled the coveralls right off him where he stood. He was lucky! but heavily bruised up. Be careful but have fun.
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