Great Plains NTA2000D Operator Manual - Manual (Page 59)

39 9/13/2006 NTA 2000D 148-632M
Great Plains Mfg., Inc.
Problem Solution
Drill raising and lowering rough and uneven Check for air trapped in hydraulic lines or cylinders. Bleed hydraulics if necessary.
Refer to Bleeding the Hydraulic Systems, “Preparation and Setup,” page 15.
Coulters not going deep enough Retract tongue cylinder.
Add weight to hitch frame. Refer to Coulter Down Pressure, “Adjustments,” Page
29.
Too much weight is being used by openers; set drill openers to lightest spring set-
ting. Refer to Opener Down Pressure, “Adjustments,” page 31.
Shorten coulter springs to increase down pressure. Refer to Coulter Springs,
“Adjustments,” Page 29.
Lower Coulters on Frame. Refer to Coulter Depth, “Adjustments,”, page 27.
Drill not tracking behind coulters Check if coulters are aligned with openers.
Check if leaf spring is out of alignment. Refer to Leaf Spring Adjustment, “Adjust-
ments,” page 31.
Openers plugging in no-till conditions Drill across standing residue.
Drill Seeding too deep Change the press-wheel setting. Refer to Opener Depth, “Adjustments,” page 30.
Remove weight from hitch.
Uneven seed spacing or uneven stand Check for plugging in the metering wheel.
Check to be sure feed flaps are set evenly.Refer to Feed Flaps, “Meter,” page 35.
Check if seed tubes are plugged.
Reduce ground speed.
Check that opener disks turn freely.
Increase opener down pressure so opener disks penetrate. Refer to Opener Down
Pressure, “Adjustments,” page 31.
Check for trash or mud build-up on optional Seed-Lok ® wheels.
Opener disks not turning freely Check for trash or mud build-up on disk scrapers. Readjust scrapers. Refer to Disk
Scraper Adjustment, “Adjustments,” page 31.
Check if scrapers are too tight, restricting disk movement. Refer to Disk Scraper
Adjustment, “Adjustments,” page 31.
Check disk bearings.
Check opener frame for possible damage.
Check if opener disks turn freely by hand but not in field. If so, reduce down pres-
sure on openers. Refer to Opener Down Pressure, “Adjustments,” page 31.
Check press-wheel adjustment for seeding depth. Refer to Opener Depth,
“Adjustments,” page 30.
Actual seeding rate Check seed-rate setting. “Seed Rate Charts,” page 48.
is different than desired Check air pressure in contact tire Refer to Tire Inflation Chart, “Appendix,” page
53.
Excessive seed cracking Position feed flap handle to a lower notch.
Uneven seeding depth Check that openers have sufficient down pressure. Refer to Opener Down Pres-
sure, “Adjustments,” page 31.
Troubleshooting