In Reply to: Re: Re: Re: Straw wrapping on L2 tresher rattle chain posted by Gleamer on October 19, 2004 at 21:52:46:
Thanks for the advice on the cylinder extension. Local dealer was no help. Like most dealers you have to know the part number for the item. Found it in my L2 parts book but that was of no value either because it doesn't give a part number. This is what it says: "order through machinery". The parts book shows a picture of an extension with 11 teeth. I found two junked L2 combines, with an extension, that had 9 teeth. They both have mounting holes for the M combines but were mounted in L2s with just the two center bolts. Not a comfortable way to mount but seems they worked okay. I installed one and it has stopped the wrapping.
As far as slowing the throttle down while doing dry edible beans I must disagree with you. There are definite advantages in product quality. I used to use a sprocket slow-down kit to reduce the cylinder speed well below the standard belt pulleys. The disadvantages here are obvious. Sprockets wear more and are noisier. Also it was a hassle to install and remove because the speed was then too slow to be of use in corn and small grains. I compromised by getting a smaller drive pulley for the cylinder. Found a pulley the size I wanted but not able to find one that had the right mountings. Machined the center mounting from another pulley and used it. Works great. Slows the cylinder considerably (not as much as the slow-down sprocket kit) yet can still speed it up to do corn and small grains. Slowing the throttle to between 2000 and 2100 rpms has no detrimental effect on the airflow; just open the air slightly to compensate. Combine studies have shown that reducing the elevator speeds reduce cracking and splitting. I have found that the slow-down improves grade 1-2%. The quality improvement more then offset the loss in capacity.