Great Plains 3S-4010HDF Operator Manual - Manual (Page 61)

Great Plains Manufacturing, Inc. Troubleshooting 57
03/28/2012 196-522M
Uneven seed depth Excessive field speed Slow down.
Coulter depth adjustment Verify coulter-to-opener relationship.
Coulter down-force insufficient -
coulters not achieving depth Add weight or, if weight is sufficient, increase
coulter spring settings.
Insufficient opener down force for con-
ditions Adjust row unit cam, page 48.
Conditions too wet Wait for dryer weather.
Seed-Lok plugging Lock up Seed-Lok, page 52.
Damaged or missing seed flap Replace seed flap.
Damaged opener seed tube Check for damage at tip of seed tube.
Partially plugged opener seed tube Lift up drill, expose bottom of seed tube and
clean out.
Incorrect choice of coulter Change coulter blade.
Skimming (gauge wheels skipping, or
off ground entirely) Reduce coulter and/or row unit down forces,
or add weights.
Opener disks not turning
freely Opener plugged with dirt Clean opener. Adjust scraper.
Planting conditions too wet Wait until drier weather.
Seed-Lok is plugging opener Lock up Seed-Lok, page 52.
Too much blade-to-blade contact Adjust disk contact. See page 51.
Failed disk bearings Replace disk bearings.
Bent or twisted opener frame Replace opener frame.
Meter flutes locked up or
shaft twisted Obstruction(s) in meter cups Clean out cups.
Treatment build-up in cups Disassemble and clean cups/flutes.
Press wheels not com-
pacting the soil as
desired Too wet or cloddy Wait until drier weather or rework ground.
Coulter set too shallow Adjust coulter depth. See page 37 or
page 45.
Incorrect press wheel depth setting Adjust T-handle. See page 53.
Opener spring pressure too low or too
high Reduce opener spring pressure.
Problem Cause Solution