Great Plains NTA2000 Operator Manual - Manual (Page 58)

36 NTA 2000 148-561M 2/2/2006
Great Plains Mfg., Inc.
Troubleshooting
Problem Solution
Drill raising and lowering rough and uneven Check for air trapped in hydraulic lines or cylinders. Bleed hydraulics if nec-
essary. Refer to Bleeding the Hydraulic Systems, “Preparation and Setup,”
page 11.
Coulters not going deep enough Retract tongue cylinder.
Add weight to hitch frame. Refer to Coulter Down Pressure, “Adjustments,”
Page 25.
Too much weight is being used by openers; set drill openers to lightest
spring setting. Refer to Opener Down Pressure, “Adjustments,” page 27.
Shorten coulter springs to increase down pressure. Refer to Coulter
Springs, “Adjustments,” Page 25.
Lower Coulters on Frame. Refer to Coulter Depth, “Adjustments,”, page 23.
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,
“Adjustments,” page 27.
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 26.
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
31.
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 27.
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 28.
Check if scrapers are too tight, restricting disk movement. Refer to Disk
Scraper Adjustment, “Adjustments,” page 28.
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
pressure on openers. Refer to Opener Down Pressure, “Adjustments,” page
28.
Check press-wheel adjustment for seeding depth. Refer to Opener Depth,
“Adjustments,” page 26.
Actual seeding rate Check seed-rate setting. “Seed Rate Charts,” page 44.
is different than desired Check air pressure in contact tire Refer to Tire Inflation Chart, “Appendix,”
page 49.
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
Pressure, “Adjustments,” page 28.