Great Plains YP1625 Operator Manual - Manual (Page 56)

1625
401-182M 7/12/2005
54
Troubleshooting
Problem Cause Solution
Planting too much Incorrect seed rate. Check seed rate information in the
Veris section beginning on page 71.
Actual field size is different. Verify field size.
Excessive overlap.
Irregular shaped field. Adjust marker, page 47.
Incorrect tire size or air pressure. Correct tire size and air pressure,
page 97.
Improper main shaft sprocket. Check sprockets, Veris uses 23-
tooth. Conventional uses 25-tooth.
Improper gap on speed sensor. Check speed sensor on planter for
1/16” to 1/8” gap from wheel.
Improper gap can cause erratic
speed signal causing monitor to
falsely report improper seeding rate.
Monitor may also falsely report a
low rate on soybeans by as much as
5 percent due to difficulty in count-
ing all of the seeds.
Meter wheel or finger pickup has
more cells than indicated on seed
rate chart. Charts are based on either 6 finger
or 12 finger meters or various wheel
counts.
Planting too little Incorrect seed rate. Check seed rate information.
Excessive field speed. Reduce field speed.
Seed size and weight may vary. Adjust seed rate handle.
Incorrect tire size or air pressure. Correct tire size and air pressure,
page 97.
Actual field size is different. Verify field size.
Excessive gaps between planter
passes. Adjust marker, page 47.
Plugged row-unit seed tube. Lift planter, expose bottom of seed
tube and clean out.
Thrown or worn drive chains Check drive chains.
Worn sprockets and/or chain idlers. Replace sprockets and/or chain
idlers.
Improper main shaft sprocket. Check sprockets, Veris uses 23-
tooth. Conventional uses 25-tooth.
Improper gap on speed sensor. Check speed sensor on planter for
1/16” to 1/8” gap from wheel.
Improper gap can cause erratic
speed signal causing monitor to
falsely report improper seeding rate.
Monitor may also falsely report a
low rate on soybeans by as much as
5 percent due to difficulty in count-
ing all of the seeds.