Great Plains 2420P Operator Manual - Manual (Page 48)

2410P and 2420P
118-769M 2012-04-17
46
Acremeter does not measure
accurately
NOTE:
Acremeter is most accu-
rate when seeding back and
forth with markers with few
headlands, curves and
pointrows. Incorrect Acre Meter
Incorrect tire size or air pressure Correct tire size or air pressure, page
90.
Excessive overlap or gaps between
passes. Avoid overlap or gaps. Check marker
adjustment, page 40.
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.
Incorrect Acre Meter 7 1/2” and 10” row spacing
Part Number: 890-677C: 239 Revolu-
tions
15” row spacing
Part Number: 890-678C 225 Revolu-
tions
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. Readjust top link to level drill.
10 Series Openers - incorrect press
wheel depth setting. Check opener adjustment, page 25.
Opener spring pressure too high. Reduce opener spring pressure.
20 Series Openers - not enough pres-
sure on press wheels. Check opener adjustment, page 27.
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 34.
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 50.
Damaged, old or dry seed. Use clean, new seed.
Problem Cause Solution