Great Plains 3N-3020P Operator Manual - Manual (Page 53)

4/23/2010 196-248M
51 Troubleshooting
Acremeter does not measure
accurately, continued Excessive overlap or gaps between
passes. Avoid overlap or gaps. Check marker
adjustment, page 45.
Soil conditions. Loose soil and slippage will cause
variations in acres registered.
Check that acremeter is for your width
of drill. Refer to drill parts manual.
Actual field size different. Verify field size.
Press wheels not compacting
the soil as desired Too wet or cloddy. Wait until drier weather or rework
ground.
Coulter set too shallow. Check coulter adjustment in hitch
operator’s manual.
Drill not running level front-to-back in
the field. Re-adjust hitch-height. See “Hitch
Height Adjustment,” page 18.
10 Series Openers - incorrect press
wheel depth setting. Check opener adjustment, page 33.
Opener spring pressure too high. Reduce opener spring pressure.
20 Series Openers - not enough pres-
sure on press wheels. Check opener adjustment, page 33.
Excessive seed cracking Excessive field speed. Slow down. Check Seeding Rate
Chart for correct maximum field
speed.
Unclean seed. Use clean seed.
Incorrect seed meter wheel. Change seed meter wheel, page 38.
Incorrect seed size for seed meter
wheel. Verify seed count on seed bag with
seed meter wheel.
Build up of seed treatment in seed
meter wheel pockets. Clean seed meter wheel. Add more
talc lubricant.
Worn or damaged seed meter wheel. Replace seed meter wheel.
Worn or damaged meter slide. Replace meter slide, page 57.
Damaged, old or dry seed. Use clean, new seed.
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
107.
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.
Planting around fields vs. back-and-
forth. Correct planting operation.
Drill boxes do not empty
evenly, continued Rough field conditions may move
seed in the box.
Problem Cause Solution