Great Plains 2420P Operator Manual - Manual (Page 45)

2012-04-17 118-769M
43 Troubleshooting
Problem Cause Solution
Planting too much Incorrect seed rate or sprocket com-
bination. Check seed rate information begin-
ning on page 30.
Wrong seed meter wheel installed. Install correct seed meter wheel.
Seed size and weight vary from volu-
metric chart. Adjust transmission or tire pressure.
Actual field size is different. Verify field size.
Excessive overlap.
Irregular shaped field. Adjust marker, page 37.
Incorrect tire size or air pressure. Correct tire size and air pressure,
page 90.
Meter clean out door is open. Close and pin meter clean out door,
page 33.
Seed meter wheel spring or retaining
cap damaged or missing. Check seed meter wheel spring and
retaining cap, page 34.
Incorrect seed meter wheel for seed
size. Verify seed count on seed bag with
seed meter wheel.
Seed meter wheel not seated cor-
rectly on meter shaft. Check installation of seed meter
wheel, page 34.
Seed meter wheel damaged or miss-
ing. Check seed meter wheel and replace
if damaged.
Seed meter slide is sticking open. Remove and clean seed meter slide
and check for wear, page 50.
Seed meter slide worn. Replace seed meter slide, page 50.
Planting too little Incorrect seed rate or sprocket com-
bination. Check seed rate information begin-
ning on page 30.
Excessive field speed. Slow down. Check Seeding Rate
Chart for correct maximum field
speed
Incorrect seed meter wheel for seed
size. Verify seed count on seed bag with
seed meter wheel.
Seed size and weight vary from volu-
metric chart. Adjust transmission or tire pressure.
Incorrect tire size or air pressure. Correct tire size and air pressure,
page 90.
Check seed level in seed box. Fill seed box.
Actual field size is different. Verify field size.
Excessive gaps between drill passes. Adjust marker, page 37.
Troubleshooting