25 series row unit adjustments – Great Plains YP2425F-2470 Operator Manual User Manual
Page 69
Great Plains Manufacturing, Inc.
Adjustments
65
2014-07-14
401-406M
25 Series Row Unit Adjustments
Refer to Figure 77 (which depicts a row unit fully
populated with all optional accessories supported for use
with the YP24 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 “Row Unit
Down Pressure” on page 66.
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 69.
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
“Coulter Adjustments” on page 70.
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 72.
5.
Depth Side Gauge Wheels: standard
The depth gauge wheels have adjustments for
spacing and angle. See “Side Gauge Wheel
Adjustment” on page 73.
6.
Seed meter: required, choice of models/features
Meters deliver singulated or volumetric seed. See
“Seed Meter Setup and Adjustment” on page 75.
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
Firmer Lock-Up (older style)” on page 82.
9.
Gauge Wheel Scraper: optional
The depth gauge wheels also accept an optional
scraper. See “Adjusting Gauge Wheel Scrapers”
on page 74.
10. Press wheels: standard (choice of types)
These close the seed trench. See “Press Wheel
Adjustment” on page 83.
Certain Machine Damage:
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
Figure 77
25 Series Row Unit
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