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| First thing to check would be the singulator spool arms; make sure they are not bent or twisted, the flexible arms can be damaged fairly easily. check the seed disc for excessive wear or grooves. Clean the seed sensor emitter & detector lens with hot soapy water. if these all check ok, The simplest way to test this would be to swap the suspect seed sensor with one from another row that is working well. If the erratic population readings follow the sensor, you just need to replace it. If the problem stays on the same row, take a closer look at the seed meter drive.
Edited by Redwrench 5/19/2013 20:12
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