Great Plains 3S-4010HDF Operator Manual - Manual (Page 48)

44 3S-4010HD and 3S-4010HDF Great Plains Manufacturing, Inc.
196-522M 03/28/2012 E
10HD Series Row Unit Adjustments
Refer to Figure 49
(depicting an opener populated with optional accessories
)
From front to back, a Great Plains 10HD Series row unit
can include the following capabilities (some optional):
1. Unit-Mounted Coulter (UMC): optional
UMCs are used instead of frame-mounted coulters
and are often preferred where soils are not rocky.
See “Unit-Mounted Coulter Adjustments” on
page 45.
2. Down Pressure Springs and Cam: standard
Each row unit is mounted on the drill via parallel
arms which allow the row unit to independently move
up and down while remaining parallel to the ground.
The cam-adjustable springs provides the force to get
the row unit and attachments into the soil. See “Row
Unit Down Pressure” on page 47.
3. Row Unit Lock-Up: optional
If altering row spacing, unused rows can be raised to
reduce wear. Seed flow is stopped at the boxes. See
“Row Shut Off” on page 49.
4. 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 “Disk Blade Adjustments” on page 51.
5. Scraper Separator: standard
No adjustments are necessary.
6. Seed delivery tubes: standard
No adjustments are necessary. There are one, two
or three separate tubes for main seed, Fertilizer and
Small Seeds.
7. Seed firmer: seed flap (not shown) standard:
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 52.
Seed-Lok™ firming wheel (shown)
Improves seed-soil contact. See “Seed-Lok™ Seed
Firmer Lock-Up” on page 52.
8. Press wheels: standard (choice of types)
Adjusted by a T-handle, these close the seed trench.
The wheels also support the free end of the row unit,
and provide the primary control over seeding depth.
See “Opener Depth (Press Wheel Height)” on
page 53.
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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 49
10HD Series Row Unit
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