Great Plains YP4025F-1670 Operator Manual - Manual (Page 72)

68 YP4010HD/YP4025/F Table of Contents Index Great Plains Manufacturing, Inc.
401-571M Table of Contents Index 2014-09-08
25 Series Row Unit Adjustments
Refer to Figure 74 (which depicts a row unit fully populated
with all optional accessories supported for use with the
YP4010HD/YP4025/F 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.
Adjustable springs provide the force to get the row
unit and attachments into the soil. See “Refer to
Figure 78” on page 71.
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 75.
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
supplied 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 76.
4. Disc Blades: standard, 2 per row unit
Double disc blades widen the coulter groove,
creating the seed bed. Setup controls depth and
width. See “Row-Unit Opener Disk Adjustments”
on page 77.
5. Depth Side Gauge Wheels: standard
The depth gauge wheels have adjustments for
spacing and angle. See “Side Gauge Wheel
Adjustment” on page 78.
6. Seed meter: required, choice of models/features
Meters deliver singulated or volumetric seed. See
“Seed Meter Setup and Adjustment” on page 81.
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 88.
Seed-Lok
®
firming wheel (shown in inset)
Improves seed-soil contact. See “Seed-Lok
®
Seed
Firmer Lock-Up” on page 88.
9. Gauge Wheel Scraper: optional
The depth gauge wheels also accept an optional
scraper. See “Gauge Wheel Scraper Adjustments”
on page 80.
10. Press wheels: standard (choice of types)
These close the seed trench. See “Press Wheel
Adjustment” on page 89.
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 74
25 Series Row Unit
18287
25193
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