I know JD Seller and many others have done hundreds of John Deere corn meters. I generally go through my corn meters myself. I did convert them to precision components a few years ago. I always check that all of the fingers are true, springs have good tension, the belt is good, look for corrosion, etc. I generally change the brush every year as well with a new maroon Precision brush. Spin them to look for proper finger action as they turn. My question is how tight should the nut be that holds the cover over the fingers - the nut with the cotter pin. Sometimes I think the meters turn a little hard. I always have nearly a perfect stand so I feel fine about doing them myself. Am I missing anything else? Thanks.
- Thread starter andy r
- Start date
Dave H (MI)
Well-known Member
1/12th? Wonder how they came up with that?
Mike Aylward
Well-known Member
The 1/12th figure sounds more precise than "half a flat"..
. I set them slightly different than this but it will get you close. In addition to setting the fingers, be VERY careful to center the belt in the housing. If the belt drags on either side of the housing it will skew your setting on the fingers and also make the meter jerk, causing all kinds of problems. The belt should run in the center of the bottom roller and not make contact on either side. This is very important for best results of the meter. Mike
. I set them slightly different than this but it will get you close. In addition to setting the fingers, be VERY careful to center the belt in the housing. If the belt drags on either side of the housing it will skew your setting on the fingers and also make the meter jerk, causing all kinds of problems. The belt should run in the center of the bottom roller and not make contact on either side. This is very important for best results of the meter. MikeMike Aylward
Well-known Member
I usually press down on the finger unit until all the slack is out. Then I tighten the nut finger tight against the finger unit then back it off about one flat. This gives a more consistent setting. You need to center the belt before you set the fingers. The belt will not drag if it is set right. THEN set the fingers. If you cannot center the belt you may have a sprung housing. I've run into several that were (been dropped, chain wrapped up, etc.) If a housing is sprung it's best to just buy a new one and start over. There are several things that can affect the accuracy of the unit. I try to set used finger units to obtain at least 98% accuracy on my stand (less than 20 skips or doubles out of 1000 seeds). Sometimes it's not easy given the variability of seed grading anymore. The sweet spot for a finger pickup to do it's best work is in the neighborhood of 46-54 lbs. per bag. They will plant larger or smaller seeds but the best results are in the medium-sized range. Mike
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