Great Plains 3N-4025P Operator Manual - Manual (Page 65)

4/23/2010 196-286M
63 Troubleshooting
Planting too little, continued Obstruction in meter (foreign material
or uncleaned seed). Clean seed meter.
Thrown or worn drive chains. Check drive chains.
Worn sprockets and/or chain idlers. Replace sprockets and/or chain idlers,
page 75.
Uneven seed spacing Excessive field speed. Slow down.
Unclean seed. Use clean seed.
Lack of talc lubricant. Add talc lubricant, page 85.
Build up of seed treatment in meter. Clean out seed meter, page 70. Add
more talc lubricant.
Seed-Lok plugging. Lock up Seed-Lok, page 55.
Damaged or missing seed flap. Replace seed flap.
Opener disks not turning. See “Opener disks not turning freely” in
this Troubleshooting chart.
Plugged opener seed tube. Lift up drill, expose bottom of seed tube
and clean out.
Worn/rusted sprockets and/or chain
idler. Check and replace any worn/rusted
sprockets or chain idlers.
Seed meter wheel damaged or worn. Check seed meter wheel and replace.
Seed meter slide worn. Replace seed meter slide, page 71.
Plugged sliding seed tube. Clean out sliding seed tube.
Incorrect seed meter wheel for seed
size. Verify seed count on seed bag with seed
meter wheel.
Uneven seed depth Excessive field speed. Slow down.
Coulter depth adjustment Check Operator’s manual.
Planting conditions too wet. Wait until drier weather.
10 Series Opener press wheel depth
too deep for soil conditions or coulter
depth. Check 10 Series Opener adjustments,
page 34.
15 Series Opener side depth wheels
are set too deep for soil conditions or
coulter depth. Check 15 Series Opener adjustments,
page 35.
15 Series Opener press wheel spring
force is set too high. Check 15 Series Opener adjustments,
page 35.
20 and 25 Series Opener side depth
wheels are set too deep for soil condi-
tions or coulter depth. Check 20 Series Opener adjustments,
page 38 or page 41.
20 and 25 Series Opener press wheel
spring force is set too high. Check 20 or 25 Series Opener adjust-
ments, page 38 or page 41.
Incorrect spring pressure on openers. Correct spring pressure, page 34, page
38 or page 41.
Seed-Lok building up with dirt. Lock up Seed-Lok, page 55.
Engage Seed-Lok in dry conditions,
page 55.
Problem Cause Solution