Row unit adjustments – Great Plains 2525F Operator Manual User Manual
Page 32
28 2020F, 2025F, 2520F and 2525F
118-232M
01/23/2012
Row Unit Adjustments
Refer to Figure 27 (which depicts a 25-Series row unit fully
populated with all optional accessories supported for use
with the 2020F, 2025F, 2520F and 2525F drill)
From front to back, a Great Plains 20 or 25 Series seed
cup row unit can include the following capabilities (some
optional):
1.
Down Pressure Springs: standard
Each row unit is mounted on the drill 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 29.
2.
Disk Coulter: optional, choice of blades
(25 Series only)
Coulters cut 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 “25 Series Coulter Adjust-
ments” on page 34.
3.
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 36.
4.
Depth Side Gauge Wheels: standard
The depth gauge wheels have adjustments for spac-
ing and angle. See “Side Gauge Wheel Adjust-
ment” on page 37.
5.
Seed delivery tubes: standard
No adjustments are necessary.
6.
Seed firmer (optional):
Keeton seed firmer (shown mounted)
Improves seed-soil contact. See “Keeton Seed
Firmer Adjustment” on page 39.
Seed-Lok™ firming wheel (shown in inset)
Improves seed-soil contact. See “Seed-Lok™ Seed
Firmer Lock-Up” on page 39.
7.
Gauge Wheel Scraper: optional
The depth gauge wheels also accept an optional
scraper. See “Adjusting 25 Series Gauge Wheel
Scrapers” on page 38.
8.
Press wheels: standard (choice of types)
These close the seed trench. See “Press Wheel
Adjustment” on page 40.
Certain Machine Damage:
Do not back up with row units in the ground. To do so will
cause severe damage and row unit plugging.
FigureSpacer
Figure 27
25 Series Row Unit
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