Great Plains CP1000 Operator Manual - Manual (Page 34)

32
Section 4 Troubleshooting
CP1000 Three-Meter Drill and Hitch 148-358M 7/5/2005
Great Plains Mfg., Inc.
Section 4
Troubleshooting
Problem Solution
Drill raising and lowering rough and uneven Check for too little play in slide-block area. Refer to Maintenance, “Maintenance
and Lubrication,” page 34.
Check for air trapped in hydraulic lines or cylinders. Bleed hydraulics if necessary.
Refer to Bleeding the Hydraulic Systems, “Preparation and Setup,” page 12.
Coulters not going deep enough Retract tongue cylinder.
Add weight to hitch frame. Refer to Coulter Down Pressure, “Adjustments,” page
18.
Too much weight is being used by openers; set drill openers to lightest spring set-
ting. Refer to Opener Down Pressure, “Adjustments,” page 19.
Shorten coulter springs to increase down pressure. Refer to Coulter Down Pres-
sure, “Adjustments,” page 18.
Drill not tracking behind coulters Check if coulters are aligned with openers.
Check that pivot-lock tubes are in drilling position. Refer to Figure 2-2 , page 13 .
Check if leaf spring is out of alignment. Refer to Leaf Spring Adjustment, “Adjust-
ments,” page 20.
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 19.
Remove weight from hitch.
Uneven seed spacing or uneven stand Check for plugging in seed cups.
Check if seed tubes are plugged.
Reduce ground speed.
Check that opener disks turn freely.
Use a faster drive type and a lower seed-rate-handle setting. Refer to Setting the
Seeding Rate, “Adjustments,” page 21.
Increase opener down pressure so opener disks penetrate. Refer to Opener Down
Pressure, “Adjustments,” page 19.
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 19.
Check if scrapers are too tight, restricting disk movement. Refer to Disk Scraper
Adjustment, “Adjustments,” page 19.
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 19.
Check press-wheel adjustment for seeding depth. Refer to Opener Depth,
“Adjustments,” page 19.