Great Plains YP3025 Operator Manual - Manual (Page 63)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 59
2013-09-09 Table of Contents Index 401-703M
25 Series Row Unit Adjustments
Refer to Figure 62 (which depicts a row unit fully populated
with all optional accessories supported for use with the
YP3010HDP, YP3020P and YP3025 planter)
From front to back, a Great Plains 25 Series row unit can
include the following capabilities (some optional):
1. Dual Down Pressure Springs: standard
Each row unit is mounted on the planter with parallel
arms which allow each row unit to independently
move up and down while staying horizontal. Adjust-
able springs provide the force to get the row unit and
attachments into the soil. See “Row Unit Down
Pressure” on page 62.
2. Row cleaners: optional
Row cleaners clear trash from the row. Twin-row
planters support single-arm cleaners. Single-row
planters support single- or double-arm cleaners. See
“Unit-Mount Cleaner Adjustments” on page 68.
3. Disk Coulter: optional, choice of blades
Coulters cut any remaining trash, and create a
groove for light no-till planting. The down force
needed to cut and widen the coulter groove is sup-
plied by the row unit. The depth relative to the
opener is set by a choice of hub mounting holes. See
“Unit-Mounted Coulter Adjustments” on page 69.
4. Disc Blades: standard, 2 per row unit
Double disc blades widen the coulter groove, creat-
ing the seed bed. Setup controls depth and width.
See “Row-Unit Opener Disk Adjustments” on
page 70.
5. Depth Side Gauge Wheels: standard
The depth gauge wheels set the planting depth.
They also have adjustments for spacing and angle.
See “25P Opener Depth” on page 61 and “Side
Gauge Wheel Adjustment” on page 71.
6. Seed meter: required, choice of models/features
Meters deliver singulated or volumetric seed. See
“Seed Meter Setup and Adjustment” on page 74.
7. Seed delivery tube: standard (not shown)
No adjustments are necessary.
8. Seed firmer (optional):
Keeton seed firmer (shown mounted)
Improves seed-soil contact, and provides a stable
arm for a low-rate liquid fertilizer delivery tube. See
See “Keeton Seed Firmer Adjustment” on
page 81.
Seed-Lok® firming wheel (shown in inset)
Improves seed-soil contact. See “Seed-Lok® Seed
Firmer Lock-Up” on page 82.
9. Gauge Wheel Scraper: optional
The depth gauge wheels also accept an optional
scraper. See “Gauge Wheel Scraper Adjustments”
on page 73.
10. Press wheels: standard (choice of types)
These close the seed trench. See “Press Wheel
Adjustment” on page 83.
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 62
25 Series Row Unit
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