Great Plains CDA600 Operator Manual - Manual (Page 45)

43 Centurion CDA600
270-600M-ENG
2013-06-14
4.11 Seeding Elements
The Centurion has precise injection molded
seed distribution heads with built-in tramline
shut offs and optional seed flow sensors
accurately deliver seed to each coulter.
Accurate Seed Placement is handled by
heavy duty coulter arms with 40-210kg
adjustable down-pressure and easy depth
adjustment. There is an option of 167mm
or 125mm coulter spacing.
The Centurion's acclaimed drilling coulter
features a pair of robust 4mm discs
staggered front/back by 8mm so they open
an effective seed slot. Discs are mounted
on heavy-duty arms that can apply up to
210kgs down pressure which ensures
penetration in the hardest conditions.
4.11.1 Row Unit
Adjustments
The Great Plains 00 Series row unit can
include the following capabilities (some
optional):
4. Adjustment / Operation
1. Down Pressure Spring - Each row
unit is mounted on the implement
via arms which allow the row unit to
independently move up and down. The
adjustable spring sets the force at which
the opener rides up over obstructions.
See “Row Unit Spring Adjustment” on
opposite page.
2. Disc Blades - Double disc blades
open a furrow, creating the seed bed.
Spacers adjust the blades for a clean
furrow. See “Disc Blade Adjustments”
on page 44.
3. Seed delivery tube - This tube
delivers material from the hopper. No
adjustments are necessary.
4. Press wheels - These close the seed
trench. The press wheels also support
the free end of the row unit, and provide
the primary control over seeding depth
via the T-handle. See “Opener Depth
(Press Wheel Height)” on page 46.
5. Seed firmer - seed flap (not shown) A
seed flap requires no adjustment, other
than replacement when worn.
Keeton® seed firmer (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 46.
6. Inside Scraper - Helps prevent clogging
between disc blades. See “Opener Disc
Scraper Adjustments” on page 45.
7. Following Harrow - Levels the ground
after seeding.
Figure 19. Row Unit