Great Plains YP4025F-1670 Operator Manual - Manual (Page 95)

2014-09-08 Table of Contents Index 401-571M
Great Plains Manufacturing, Inc. Table of Contents Index 91
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 75
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 85.
Brush too tight on finger meter Adjust brush, page 85.
Incorrect fan air flow Adjust fan speed and/or fan baffle. See page 61
Excessive gaps between planter
passes. Adjust marker, page 60.
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.
Loose finger assemblies in finger
meters Have dealer service meters.
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 60.
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 85
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.