Great Plains YP4025F-1670 Operator Manual - Manual (Page 96)

92 YP4010HD/YP4025/F Table of Contents Index Great Plains Manufacturing, Inc.
401-571M Table of Contents Index 2014-09-08
Uneven
seed
spacing Hydraulic meter drive motor rpm too
low for reliable control by proportional
valve. 1. Increase field speed.
2. Use a seed wheel with lower cell count.
Switch from 12 finger meters to 6 finger meters.
3. Install a low speed kit (page 127).
Excessive field speed. Reduce field speed.
Unclean seed. Use clean seed.
Seed-Lok
®
plugging. Lock up Seed-Lok
®
, page 88.
Row-unit disks not turning. See “Row-unit disks not turning freely.” in this
Troubleshooting chart.
Plugged row-unit seed tube. Raise planter, expose bottom of seed tube and clean out.
Worn/rusted sprockets, chains and/or
chain idler. Check and replace any worn/rusted sprockets, chains or
chain idlers.
Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean out.
Lack of proper seed lubrication on
seed. See “Seed Lubricants” on page 125.
Use of excessively sticky or wet seed
treatment. Check your treatment.
Uneven
seed depth Excessive field speed. Reduce field speed.
Planting conditions too wet. Wait until drier weather.
Incorrect coulter depth setting. See coulter manual.
Excessive or improper row unit down
pressure spring setting. See “Refer to Figure 78” on page 71.
Damaged seed tubes. Check seed tubes for damage.
Seed-Lok
®
building up with dirt. Lock up Seed-Lok
®
, page 88.
Row-unit not penetrating low spots. See “Refer to Figure 78” on page 71.
Rough planting conditions. Rework the field.
Seed firmer not in place and set to
correct tension. See “Seed Firmer Adjustments” on page 88.
Population
Alarms False alarms or actual seed rate
errors due to monitor setup with
incorrect row count and/or spacing. Review planter configuration and monitor setup.
Row-unit
disks not
turning
freely.
Row-unit plugged with dirt. Clean row-unit.
Planting conditions too wet. Wait until drier weather.
Incorrect side depth wheel
adjustment See “Side Gauge Wheel Adjustment” on page 78.
Seed-Lok
®
is plugging row-unit. Lock up Seed-Lok
®
, page 88.
Failed disk bearings. Replace disk bearings.
Bent or twisted row-unit frame. Replace row-unit frame.
Partially plugged row-unit seed tube. Raise planter, expose bottom of seed tube and clean out.
Excessive
seed
cracking. Incorrect seed meter wheel Replace wheels with those matching seed
Unclean seed. Use clean seed.
Damaged, old or dry seed. Use clean, new seed.
Problem Cause Solution