Great Plains 3P4025AH Operator Manual - Manual (Page 80)

76 3P4025AH Table of Contents Index Great Plains Manufacturing, Inc.
411-099M Table of Contents Index 2014-07-29
General Troubleshooting
Problem Cause Solution
Population
Alarms See “Population Troubleshooting Charts” on page 72.
Excess Seed
Remaining See “Population Troubleshooting Charts” on page 72.
Field size different. After ruling out population problems, re-check geography.
Excessive gaps between planter
passes. Re-check pass geometry reference (e.g. GPS).
Seed
Consumption
Too High
See “Population Troubleshooting Charts” on page 72.
Field size different. After ruling out population problems, re-check geography.
Excessive overlap.
Irregular shaped field. Re-check pass geometry reference (e.g. GPS).
Rows Not
Planted If not detected by optional seed
monitor, check for plugged row-unit
seed tube Lift planter, expose bottom of seed tube and clean out.
Uneven
seed
spacing See “Population Troubleshooting Charts” on page 72.
Excessive field speed. Reduce field speed.
Unclean seed. Use clean seed.
Damaged seed tube Inspect; repair or replace.
Seed-Lok
®
plugging. Lock up Seed-Lok
®
, page 66.
Row-unit discs not turning. See “Row-unit discs not turning freely” in this
Troubleshooting chart.
Worn/rusted sprockets and/or chain
idler or bearings. Check and replace any worn/rusted sprockets 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 Lubricant” on page 97.
Uneven
seed depth Excessive field speed. Reduce field speed.
Planting conditions too wet. Wait until drier weather.
Incorrect coulter depth setting. See coulter manual or set unit mounted coulter.
Excessive or improper row unit down
pressure spring setting. See “Row Unit Down Pressure” on page 52.
Damaged seed tubes. Check seed tubes for damage.
Seed-Lok
®
building up with dirt. Lock up Seed-Lok
®
, page 66.
Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 52.
Rough planting conditions. Rework the field.
Seed firmer not in place and set to
correct tension. See “Seed Firmer Adjustments” on page 65.