
196-366m
Troubleshooting
Great Plains
| | 4/22/19
49
Troubleshooting
Problem
Cause
Solution
Planting too much
Incorrect seed rate or drive type.
Check seed rate information on page ci or in
the Veris section beginning on page lxvii.
Seed size and weight may vary.
Adjust seed rate handle.
Actual field size is different.
Verify field size.
Excessive overlap.
Irregular shaped field.
Adjust marker, page xliv.
Incorrect tire size or air pressure.
Correct tire size and air pressure, page cix.
Seed cup door open too much.
Refer to page xli.
Planting too little
Incorrect seed rate or drive type.
Check seed rate information beginning on
Excessive field speed.
Reduce field speed.
Seed size and weight may vary.
Adjust seed rate handle.
Incorrect tire size or air pressure.
Correct tire size and air pressure, page cix.
Check seed level in seed box.
Fill seed box.
Actual field size is different.
Verify field size.
Excessive gaps between drill
passes.
Adjust marker, page xliv.
Build up of seed treatment in seed
cups.
Clean out seed cups.
Plugged opener seed tube.
Lift drill, expose bottom of seed tube and
clean out.
Obstruction in seed cup from foreign
matter or unclean seed.
Clean seed cup.
Thrown or worn drive chains
Check drive chains.
Worn sprockets and/or chain idlers.
Replace sprockets and/or chain idlers.
Uneven seed spacing.
Excessive field speed.
Reduce field speed.
Unclean seed.
Use clean seed.
Build up of seed treatment in seed
cup.
Clean out seed cup.
Seed-Lok plugging.
Lock up Seed-Lok, page xlv.
Uneven seed spacing (cont’d)
Damaged or missing seed flap.
Replace seed flap.
Opener disks not turning.
See “Opener disks not turning freely” in this
Troubleshooting chart.
Plugged opener seed tube.
Lift up drill, expose bottom of seed tube and
clean out.
Worn/rusted sprockets and/or chain
idler.
Check and replace any worn/rusted
sprockets or chain idlers.
Opener not penetrating low spots.
Adjust opener, see instructions beginning on
Drive type too slow.
Use faster drive type and readjust seed rate
handle.
Seed cup flutes are open too far.
Close flutes to a more narrow position.