Great Plains YP2425F-2470 Operator Manual - Manual (Page 89)

2014-07-14 Table of Contents Index 401-406M
Great Plains Manufacturing, Inc. Table of Contents Index 85
Troubleshooting
General Troubleshooting
Problem Cause Solution
Planting too
little Incorrect seed size for meter wheel can
cause skips Replace meter wheels to match seed
Meter drive not engaged Engage drive coupler, page 68
Worn meter components Replace worn components
Incorrect seed rate. Check seed rate information.
Excessive field speed. Reduce field speed.
Seed size and weight may vary. Finger meter brush may need adjustment, page 79.
Incorrect tire size or air pressure. Correct tire size and air pressure, page 121.
Incorrect fan air flow Adjust fan speed and/or fan baffle, page 58
Excessive gaps between planter passes. Adjust marker, page 52.
Plugged row-unit seed tube. Raise planter, expose bottom of seed tube and clean out.
Thrown or worn drive chains Check drive chains.
Worn/rusted sprockets, chains and/or
chain idlers. Replace sprockets, chains and/or chain idlers.
Improper sprocket. Check sprockets
Speed sensor calibration Perform calibration per DICKEY-john
®
documentation
with planter lowered.
Speed sensor angle. With planter lowered, check radar speed sensor angle per
DICKEY-john
®
recommendations.
Meter wheel or finger pickup has fewer
cells than indicated on seed rate chart. Charts are based on either 6 finger or 12 finger meters or
various wheel cell counts.
Planting too
much Incorrect seed size for meter wheel can
cause doubles Replace meter wheels to match seed
Worn meter components Replace worn components
Meter clean-out door left open Close door
Incorrect seed rate. Check seed rate information in the seed monitor manual.
Actual field size is different. Verify field size.
Excessive overlap.
Irregular shaped field.
Adjust marker, page 52.
Incorrect tire size or air pressure. Correct tire size and air pressure, page 122.
Improper sprocket. Check sprockets
Speed sensor calibration Perform calibration per DICKEY-john
®
documentation
with planter lowered.
Speed sensor angle. With planter lowered, check radar speed sensor angle per
DICKEY-john
®
recommendations.
Brush too loose on finger pickup meter Adjust brush, page 79
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 cell counts.
For planters equipped with Row-Pro™, see also
“Row-Pro™ Troubleshooting” on page 149.