Great Plains YP1630F-1670 Operator Manual - Manual (Page 74)

70 YP1630F Table of Contents Index Great Plains Manufacturing, Inc.
401-832M Table of Contents Index 2012-12-27
Planter does
not fold or
unfold fully Fold cylinders out of phase Re-phase cylinders, refer to page 30
Air in lines Bleed fold circuit, refer to page 93
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. Adjust down-pressure (page 51).
Damaged seed tubes. Check seed tubes for damage.
Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 51.
Rough planting conditions. Rework the field.
Seed firmer not in place and set to correct
tension. See “Seed Firmer Adjustments” on page 61.
Press wheel or
row-units
plugging Planting conditions too wet. Wait until drier weather.
Too much pressure on row-units. Reduce down pressure on row-units.
Coulters set too deep, bring up excess dirt
and moisture. Check coulter adjustment.
Planter not set to run level from front to
rear. Check tongue height page 19
Backed up with planter in the ground. Clean out and check for damage.
Failed disc bearings. Replace disc bearings.
Disc blades worn. Replace disc blades.
Scraper worn or damaged. Side depth
wheels not set correctly. Adjust side depth wheels page.
Row-unit discs
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 Adjustments” on page 54.
Failed disc bearings. Replace disc bearings.
Bent or twisted row-unit frame. Replace row-unit frame.
Partially plugged row-unit seed tube. Lift up planter, expose bottom of seed tube and clean
out.
Press wheels
not
compacting
the soil as
desired. Incorrect spring handle setting See “Press Wheel Adjustments” on page 62.
Insufficient row unit down-force See “Row Unit Down Pressure” on page 52.
Use of incorrectly shaped tire for your
conditions. Wedge shaped wheels work best on narrow spacings
and in wet conditions. Round edge wheels work best in
wider row spacings and drier conditions.
Not level front to rear. Check tongue height.
Press wheels not aligned with openers. Align press wheels (page 62).
General Troubleshooting
Problem Cause Solution