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Make sure those meters are plate-type or plateless. If plateless, take off the black plastic cover (held on with 3 1/4" bolts). Now you can see what condition the backing plate is for wear or rust...you will see 2 "speed bumps" and a brush. If the speed bumps are grooved or rusted the backing plate should be replaced. The fingers wear on the bottom side, so you have to turn off the big nut to get at that evidence. The brush WILL need replacing, hike over to the JD dealer and buy some and install them yourself; make sure the new brush is fully seated. The fingers will show a flat spot if worn enough...if you can"t see any flat spots, you might be good to go here. If worn, go buy a whole finger set; buying individual fingers is not the way to go and the springs are probably weak anyway. Now is the time (with finger set removed)to turn the shaft by hand to see how the belts run...if things run smoothly chances are the belts might be OK. If belts seem stiff, they have to come out or you will break them at the other end of the field (Murphy"s Law). When reassembling, make sure the finger set is fully seated, then the big nut needs to be finger tightened, then turn the nut about 1/8 more, put castle nut cover over nut, insert cotter key and bend.
Now check that black plastic cover around the bolt holes (5 of them)for cracking; if cracked or broken, buy new ones right now. See if you can turn meter by hand, should be a little resistance. Put meter on planter and hope for the best. You really need to have someone who knows what they are doing for final assembly so you can plant with assurance that you will have a good stand of corn. There are machines now made for testing those meters "at speed" and they are great for knowing how the meter will do for accuracy. $225 is a high price if you are talking about just the meters...maybe you got the hoppers also? And the best advice I can give you is READ THE OPERATOR"S MANUAL. Then read it a second time.
Not being a smartbutt here, but you will understand if/when you have a train wreck in the field. LA in WI
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