Great Plains YP3025 Operator Manual - Manual (Page 61)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 57
2013-09-09 Table of Contents Index 401-703M
10HD Series Row Adjustments
Refer to Figure 60
(which depicts a row unit fully populated with all optional ac-
cessories supported for use on at least one 10HDP model -
some models may not support some accessories)
From front to back, a Great Plains 10HD Series row unit
can include the following capabilities (some optional):
1. UMC Row Cleaner: optional
Row cleaners clear debris ahead of the furrow. See
page 68 for adjustments.
2. Unit-Mounted Coulter (UMC): optional
UMCs cut residue and prepare the soil ahead of the
seed furrow. See page 69 for adjustments.
3. Dual Down Pressure Springs: standard
Each row unit is mounted on the YP30 planter via
parallel arms which allow the row unit to indepen-
dently move up and down while remaining parallel to
the ground. The adjustable spring provides the force
to get the row unit and attachments into the soil. See
page 62 for adjustments.
4. Row Unit Spring Cam: standard
Adjustment sets the down-force used by the row unit.
See “10HDP Series Down-Pressure” on page 62.
5. Row-Unit Lock-Up: holes standard, pins optional
If rows are shut off with seed tube plugs, row unit
wear can be reduced by locking them up. See “Row
Unit Shut Off” on page 67.
6. Disc Blades: standard, 2 per row unit
Double disc blades open a furrow, creating the seed
bed. Spacers adjust the blades for a clean furrow.
See “Row-Unit Opener Disk Adjustments” on
page 70.
7. Seed Meter (standard - choice of models)
A precision or finger pickup meter is standard, with a
choice of wheels or finger sets. See page 74 for
changing meters and wheels. See page 77 for finger
meter adjustments.
8. Drive Coupler
Disengage unused rows during calibration or when
using alternate row spacings. See page 67.
9. Scrapers: (spreader shown)
A lower separator/scraper is standard.
An upper rear carbide scraper is optional.
See page 104.
10. Seed delivery tube: standard
No adjustments are necessary. See page 67 for
seed tube shutoff above meter. Standard tubes
include a seed sensor for the optional seed monitor.
11. Seed firmer:
Reduces seed bounce and aids emergence by
pressing seed gently into the furrow.
A seed flap (not shown) is standard. See page 105
for replacement.
Keeton seed firmer (not shown)
Improves seed-soil contact, and provides a stable
arm for a low-rate liquid fertilizer delivery tube. See
“Keeton Seed Firmer Adjustment” on page 81.
Seed-Lok™ firming wheel (shown)
Improves seed-soil contact. See “Seed-Lok® Seed
Firmer Lock-Up” on page 82.
12. Press wheels: standard (choice of types)
These close the seed trench. The wheels also sup-
port the free end of the row unit, and provide the pri-
mary control over seeding depth. See “10HDP
Opener Depth” on page 60.
Machine Damage Hazard:
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
Figure 60
10HD Series Row Unit
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