Great Plains 2N-3020 Operator Manual - Manual (Page 33)

31
Section 4 Troubleshooting
2/28/08 2N-2420 and 2N-3020 Two-Section Folding No-Till Drill 196-164M-A
Great Plains Mfg., Inc.
Section 4
Troubleshooting
Problem Solution
Uneven seed spacing or stand Check for plugging in seed cups.
Check for plugging in seed tubes.
Reduce ground speed.
Check that opener disks turn freely.
Shift speed-change gearbox to a faster drive type and adjust the seed-rate handle
to a lower number.
Increase spring pressure so openers penetrate low spots. Refer to Opener Adjust-
ments, “Adjustments,” page 21.
Check for trash or mud build-up on Seed-Lok
® wheels.
Opener disks not turning freely Check for trash or mud build-up on disk scraper. Re-adjust scraper if necessary.
Refer to Disk Scraper Adjustment, “Adjustment,” page 28.
Check if disk scraper is adjusted too tight, restricting disk movement. Refer to Disk
Scraper Adjustment, “Adjustment,” page 28.
Check disk bearings.
Check opener frame for possible damage.
If opener disks turn freely by hand but not in field, reduce down pressure on
opener. Refer to Opener Adjustments, “Adjustments,” page 21.
Check if press wheels are adjusted too high. Refer to Opener Adjustments,
“Adjustments,” page 21.
Actual seeding rate is different than
desired Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appendix,”
page 44.
Check gauge-wheel size. Proper size is 11L x 15 8-ply.
Clean seed-treatment build up out of seed cups and shafts.
Refer to Setting the Seeding Rate, “Adjustments,” page 21, for instructions on
calculating seeding rate.
Excessive seed cracking Use slower drive type on gearbox and adjust seed-rate handle to a higher number.
Position seed-cup doors to a lower notch. Refer to Setting the Seeding Rate,
“Adjustment,” page 22.
Acremeter does not measure accurately Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appendix,”
page 44.
Check gauge-wheel tire size. Proper size is 11L x 15 8-ply.
Check seeding operation for excessive overlap or gaps between passes.
Consider soil conditions; loose soil and slippage will cause variations in acres reg-
istered.
Check that your acremeter is for your drill width. Refer to the parts manual.
Uneven seeding depth Check if drill tongue is running level with ground. Refer to Hitch Height Adjust-
ment, “Drill Preparation and Setup,” page 10.
Check if drill frame is level. Refer to Leveling Adjustment, “Adjustments,” page
28.