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Row units on right-hand side of machine not planting.
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Right-hand drill-shaft drive coupler cotter pin sheared.
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Repair cause of pin shearing and replace cotter pin.
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Row units on left-hand wing frame not planting.
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Left-hand drill-shaft drive coupler cotter pin sheared.
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Repair cause of pin shearing and replace cotter pin.
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Closing wheels leave severe imprint in soil.
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Too much spring-force.
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Adjust closing-wheel spring.
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Closing wheels not firming soil around seed.
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Insufficient spring-force.
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Adjust closing-wheel spring.
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Closing wheel running on top of seed furrow.
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Improper centering.
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Align.
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Closing wheels not applying equal force.
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Closing-wheel frame not level.
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Adjust.
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Consistent shearing of drill-shaft cotter pin.
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Drill shaft not aligned properly.
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Loosen bearing and align shaft.
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Seed tubes plugging.
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Planter rolling backward when lowering.
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Lower planter while moving forward.
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Inconsistent seed depth.
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Planting rough seed bed.
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Use down force spring attachment on planting units.
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Seed tube partially plugged or improperly installed.
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Inspect seed tubes. Ensure seed tubes are hooked properly in unit shank.
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All row units not planting on planter.
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Cotter pin in contact drive tire sprocket to seed transmission sheared.
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Repair cause of pin shearing and replace cotter pin.
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