Great Plains 2525P Operator Manual - Manual (Page 56)

52 2020P/2025P and 2520P/2525P Great Plains Manufacturing, Inc.
118-231M 2013-05-10
Uneven seed depth
Excessive field speed. Slow down. Check Seeding Rate Chart for
correct maximum field speed.
Coulter depth adjustment Check hitch operator’s manual.
Planting conditions too wet. Wait until drier weather.
Drill frame height incorrect. Check drill frame height, page 16.
Drill not level front-to-back in field. Readjust top link to level drill.
Opener side depth wheels are set too
deep for soil conditions or coulter depth. Check opener adjustments, page 37.
Opener press wheel spring force is set too
high. Check press wheel adjustments, page 47.
Incorrect spring pressure on openers. Correct spring pressure, page 29.
Seed-Lok™ building up with dirt. Lock up Seed-Lok™, page 46.
Engage Seed-Lok™ only in dry conditions
Damaged or missing seed flaps. Replace seed flaps.
Damaged opener seed tube. Check disk spreader, page 36.
Row-unit not penetrating low spots. See “Row Unit Down Pressure” on
page 29.
Partially plugged opener seed tube. Raise drill, expose bottom of seed tube
and clean out.
Incorrect choice of coulter. See hitch operator’s manual.
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 43.
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 64.
Damaged, old or dry seed. Use clean, new seed.
Wrong wheel family for meter Green wheel for 25 Series and black
wheel for 20 Series.
Problem Cause Solution