Great Plains 1525P Operator Manual User Manual
Page 55
8/14/2006
118-949M
53
Troubleshooting
Uneven seed depth (cont’d)
25 Series Opener side depth wheels are
set too deep for soil conditions or coulter
depth.
Check 25 Series Opener adjustments,
page 24.
25 Series Opener press wheel spring
force is set too high.
Check 25 Series Opener adjustments,
page 24.
Incorrect spring pressure on openers.
Correct spring pressure, page 25 or page
26.
Seed-Lok™ building up with dirt.
Engage Seed-Lok™ in dry conditions,
page 50.
Damaged or missing seed flaps.
Replace seed flaps.
Damaged opener seed tube.
Check disk spreader, page 63.
Partially plugged opener seed tube.
Lift up drill, expose bottom of seed tube
and clean out.
Incorrect choice of coulter.
See hitch operator’s manual.
Opener disks not turning
freely.
Opener plugged with dirt.
Clean opener.
Planting conditions too wet.
Wait until drier weather.
Seed-Lok™ is plugging opener.
Drill frame height incorrect.
Check drill frame height, page 33.
Drill not level front-to-back in the field.
Readjust top link to level drill.
25 Series Opener side depth wheels not
adjusted correctly.
too tight - dragging on blade
too loose - allowing dirt between blade
and wheel
Check 25 Series Opener adjustments,
page 24.
25 Series Opener press wheel spring
force is set too high.
Check 25 Series Opener adjustments,
page 24.
Too much blade-to-blade contact.
Take shims under head of bolt and put
between opener and disk bearing, see
page 62 for information.
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.
HD 10 series openers set too deep. Soil
flowing over blade contact point.
Set press wheeel to shallower setting.
Reduce spring pressure on opener. See
Adjustments on page 29.
Acremeter does not measure
accurately
NOTE:
Acremeter is most accu-
rate when seeding back and forth
with markers with few headlands,
curves and pointrows. Incorrect
Acre Meter
Incorrect tire size or air pressure
Correct tire size or air pressure, page 142.
Excessive overlap or gaps between
passes.
Avoid overlap or gaps. Check marker
adjustment, page 48.
Soil conditions.
Loose soil and slippage will cause varia-
tions in acres registered.
Check that acremeter is for your width of
drill.
Refer to drill parts manual.
Actual field size different.
Verify field size.
Incorrect Acre Meter
Part Number: 890-870C: 221 tire revolu-
tions per acre.
Problem
Cause
Solution