Great Plains 2420P Operator Manual - Manual (Page 49)

2012-04-17 118-769M
47 Troubleshooting
Drill boxes do not empty
evenly Right and left hand seed rates are not
set the same. Readjust rates, see Seeding Rate
Chart.
Tire sizes or tire inflation not equal on
right and left gauge wheels. Correct tire size or tire inflation, page
90.
Meter(s) are shut off. Open meter(s).
Opener seed tube plugged. Lift up drill, expose bottom of seed
tube and clean out with wire.
Sliding seed tube plugged. Clean out sliding seed tube.
Drive chains damaged or missing. Replace drive chains.
Drive torque requirements different
on right and left gauge wheel drives. Check gauge wheels and tires.
Unequal number of sliding seed tubes
in each box compartment.
Planting around fields vs. back-and-
forth. Correct planting operation.
Rough field conditions may move
seed in the box.
Chain Debris in retainer clip Be sure retainer clip is facing oppo-
site way of chain travel
Press wheel or openers plug-
ging Planting conditions too wet. Wait until drier weather.
Drill not running level front-to-back in
the field. Readjust top link to level drill.
Drill frame height incorrect. Adjust drill frame height, page 30.
Coulters not set deep enough to cut
residue. Check coulter adjustment in hitch
operator’s manual.
Opener set too deep. Readjust, page 25 or page 27.
Opener spring force too high. Readjust, page 25 or page 27.
20 Series Openers press wheel spring
force too high. Readjust, page 27.
20 Series Openers 1 x 12 press wheel
stagger adjustment not correct. Correct press wheel stagger.
Backed up with drill in the ground Clean out and check for damage.
Failed disk bearings Replace disk bearings.
Disk blades worn. Adjust or replace disk blades, page
55.
20 Series Opener side depth wheels
not adjusted correctly. Readjust, page 27.
Scraper worn or damaged. Replace scraper.
Drill is not pulling level front-
to-back Incorrect top link adjustment. Readjust top hitch link to level drill.
Problem Cause Solution