Great Plains YP1625 Operator Manual - Manual (Page 78)

74 YP1225 and YP1625 Great Plains Manufacturing, Inc.
401-226M-A 03/12/2012
Uneven
seed depth Excessive field speed. Reduce field speed.
Planting conditions too wet. Wait until drier weather.
Incorrect coulter depth setting. Set coulters to run 1/4” above seed depth (bottom of opener
blades).
Excessive or improper row unit down
pressure spring setting. See 25 series row-units, page 53.
Damaged seed tubes. Check seed tubes for damage.
Seed-Lok building up with dirt. Lock up Seed-Lok, page 70.
Row-unit not penetrating low spots. Adjust row-unit, see instructions beginning on page 53.
Rough planting conditions. Rework the field.
Seed firmer not in place and set to
correct tension. See “Seed Firmer Adjustments” on page 70.
Excessive
seed
cracking. Incorrect seed wheel cell size. Use correct size wheel for seeds you are planting.
Unclean seed. Use clean seed.
Damaged, old or dry seed. Use clean, new seed.
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 16.
Backed up with planter in the
ground. Clean out and check for damage.
Failed disk bearings. Replace disk bearings.
Disk blades worn. Replace disk blades.
Scraper worn or damaged. Adjust or replace scraper.
Side depth wheels not set correctly. See “Side Gauge Wheel Adjustments” on page 61.
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 Adjustments” on page 61.
Seed-Lok is plugging row-unit. Lock up Seed-Lok, page 70.
Failed disk bearings. Replace disk 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 71.
Insufficient row unit down-force See “Row-Unit Down Pressure” on page 54.
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. See “Raising/Lowering Tongue” on page 16.
Problem Cause Solution