Greg, if it's cutting ragged, check to see is you have the proper drive sheave for an SCH knife. It should take a larger sheave to turn the wobble box faster. I think the smallest was 213mm for the clean cut knife and the next size was 250mm for the standard knife. I think your going to want the 250mm or one a bit larger for the SCH. I believe you want to drive the SCH at @500-525rpm. If you've got the 213mm on now then the rpm is @418rpm, and that's too slow unless you creep through the field.
500 seriers cutterbar tilt questions
Cut beans yesterday and 1st time using new to me a 500 series 20ft head on a R50. this head is a SCH setup with a new sickle and guards look great. It left a ragged cut and would like to cut lower. By lower I mean the feather sheets need to be flatter. It cuts the stalk low enough. #1 looks like the guards are slightly pointed up. what is the recommended tilt. I don't have any rocks. #2 Read the adjustments in the book for down pressure on skid plates and my springs are roughly 2 5/8". The ground is very soft and I never pushed any dirt once or leave marks. I'm thinking it could have more down pressure. #3. I'm running in the low position and my old 300 head would go lower, problem is beans are sitting on the feather sheets and i have to power down to feed better. Reel is about as low as I want to go as will almost get into guards when I power it down. I feel it needs to go down about an inch to flatten out better. I haven't check the deminsion of the rod to the the 3 springs on the header height control. Do you shorten or lengthen a tad to go lower. Otherwise it floats great across the head. Also beans stems were tough which was probably most of the problem, but got a little time to tweak. Thanks Greg
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Yep, OD of the sheave. And it's the one that drives the WB sheave, should also have the sprocket for the header conveyor bolted to it (4 bolts). BTW, took me most of last years harvest to figure it out. A lot of heads came set up for the quick-cut/double cut knife, and when you switch to a standard or SCH knife it looks like it's moving in slow motion. Most dealers I've talked to don't even know they have different size sheaves available! No wonder some guy's hate the SCH when they switch to it. Also, you should be able to tilt your bar down quite a ways as the SCH just naturally cuts a little higher than the other systems. I guess that's why some went to the extreme of flipping the guards up side down and such to get a little closer. I've never seen it, so I can't say how it's done, but last year I was ready to try anything to make this outfit work like I wanted.
I run a 320 flex on my R-50/AWS wind reel, and that sure helps even out the feeding and bunching. I put the one piece feather sheets on before wheat harvest, and I'm hoping to see how well it works. We're a good two weeks from starting soys here. Suppose I'd need to upgrade from the R-50 to be able to use a head with lateral tilt, and that's going to be a very long time from now I'm sure!
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