Great Plains 2000 Operator Manual - Manual (Page 29)

26
Section 4 Troubleshooting
12, 15 and 20 Foot Series Three-Point Drills 118-389M-A 2012-03-27
Great Plains Mfg., Inc.
Section 4
Troubleshooting
Problem Solution
Uneven seed spacing or uneven stand Check for plugging in seed cups.
Check for plugging in seed tubes.
Reduce ground speed.
Check if opener disks are turning freely.
Use faster drive type and position seed-rate handle to a lower setting.
Increase opener spring pressure to penetrate low spots. Refer to Opener
Down Pressure, “Adjustments,” page 14.
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. Adjust scraper. Refer to Disk
Scraper Adjustment, “Adjustments,” page 25.
Check if scraper is adjusted too tight, restricting disk movement. Refer to
Disk Scraper Adjustment, “Adjustments,” page 25.
Check disk bearings.
Check opener frame for damage.
If opener disks turn freely by hand but not in field, reduce down pressure on
disk opener.
Refer to Opener Down Pressure, “Adjustments,” page 14.
Check press wheel adjustment. On 00 Series and 10 Series openers, refer to
Opener Depth, “Adjustments,” page 15. On 20 Series openers, refer to
Opener
Down Pressure, “Adjustments,” page 14.
Actual metering rate is different than
desired Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appen-
dix,” page 39.
Check tire size. Proper size is 9.5L x 15 for 12- and 15-foot drills and 11L x 15
for 20-foot drills.
Regularly clean seed treatment from seed cups.
Check drill box setting.
Refer to Seeding Rate, “Adjustments,” page 15, or Fertilizer Meter Rate,
“Adjustments,” page 22 for instructions on calculating metering rate.
Acremeter does not measure accu-
rately Check tire pressure. Proper inflation is listed on Tire Inflation Chart, “Appen-
dix,” page 39.
Check tire size. Proper size is 9.5L x 15 for 12- and 15-foot drills and 11L x 15
for 20-foot drills.
Check planting operation for excessive overlap or gaps between passes.
Consider soil conditions. Loose soil and slippage will cause variations in
acres registered.
Check that your acremeter is for your width of drill. Refer to the parts manual.
Press wheels not compacting the soil
as desired Reset press-wheel depth. On 00 Series and 10 Series openers, refer to Opener
Depth, “Adjustments,” page 15. On 20 Series openers, refer to
Opener Down
Pressure, “Adjustments,” page 14.
Increase down pressure on disk openers. Refer to Opener Down Pressure,
“Adjustments,” page 14.
Excessive seed cracking Use slower drive type and position seed-rate handle to a higher setting.
Position seed-cup handles to a lower notch.