Great Plains YP4025A Operator Manual - Manual (Page 101)

Great Plains Manufacturing, Inc. Table of Contents Index Troubleshooting 97
2013-04-24 Table of Contents Index 401-627M
General Troubleshooting
Problem Cause Solution
Population
Alarms See “Population Troubleshooting Charts” on page 91.
Excess Seed
Remaining See “Population Troubleshooting Charts” on page 91.
Field size different. After ruling out population problems, re-check geography.
Excessive gaps between planter
passes. Adjust marker, page 167.
Seed
Consumptio
n Too High See “Population Troubleshooting Charts” on page 91.
Field size different. After ruling out population problems, re-check geography.
Excessive overlap.
Irregular shaped field.
Adjust marker, page 167.
Rows Not
Planted If not detected by 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 91.
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 86.
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 135.
Planter does
not fold or
unfold fully Fold cylinders out of phase Re-phase cylinders, refer to page 32
Air in lines Bleed fold circuit, refer to page 108
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 25 series row-units, page 72.
Damaged seed tubes. Check seed tubes for damage.
Seed-Lok® building up with dirt. Lock up Seed-Lok®, page 86.
Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 72.
Rough planting conditions. Rework the field.
Seed firmer not in place and set to
correct tension. See “Seed Firmer Adjustments” on page 86.