Uneven seed spacing, Opener disks not turning freely, Acremeter not measuring accurately – Great Plains 3S-4000HDF Operator Manual User Manual
Page 74
70
3S-4000HD/HDF
Great Plains Manufacturing, Inc.
195-067M
2013-06-13
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
®
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.
Openers not penetrating low spots.
Adjust opener, see instructions
beginning on page 58.
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.
Opener disks not turning freely
Opener plugged with dirt.
Clean opener.
Planting conditions too wet.
Wait until drier weather.
Seed-Lok
®
is plugging opener.
Lock up Seed-Lok
®
Failed disk bearings.
Replace disk bearings.
Bent or twisted opener frame.
Replace opener frame.
Partially plugged opener seed tube.
Lift up drill, expose bottom of seed
tube and clean out.
Acremeter not measuring
accurately
Note: Acremeter is most accurate
when seeding back and forth
with markers with few head-
lands, curves and point rows.
Incorrect tire size or air pressure.
Correct tire size or air pressure,
page 103.
Excessive overlap or gaps between
passes.
Avoid overlap or gaps. Adjust marker.
Soil conditions.
Loose soil and slippage will cause
variations in acres registered.
Acremeter not for your width of drill.
Refer to drill parts manual.
Actual field size different.
Verify field size.
Seed cup sprockets locked up or
seed drive shaft twisted.
Foreign matter lodged in seed cup
sprockets.
Clean out seed cup sprockets.
Build-up of dried liquid insecticide in
seed cups.
Remove build-up by disassembling
each seed cup and scraping the
foreign substance from turning
surfaces.
Problem
Cause
Solution