Great Plains CTA4000 HD Operator Manual - Manual (Page 53)

Great Plains Manufacturing, Inc. Adjustments 49
2012-11-28 160-037M
Disk Scraper Adjustments
Disk scrapers are optional. See page 61 for ordering
information. To keep opener disks turning freely, dirt
scrapers are mounted between disks to clean as disks
rotate.
Refer to Figure 66
As field conditions vary, scrapers may need to be
adjusted. In damp conditions, lower scrapers. If openers
are not turning freely, raise scrapers. To adjust, loosen
nut
and move scraper blade as needed.
Sharp Object Hazard:
Row unit disk blades may be sharp. Use caution when making
adjustments in this area.
Seed Firmer Adjustments
00HD Series row units include a seed flap, and accept
one of two optional seed firmers.
The seed flap requires no adjustment, but may need to
be replaced if worn, and may need to be shortened if an
optional seed firmer is added after initial delivery.
Sharp Object Hazard:
Row unit disk blades may be sharp. Use caution when
making adjustments in this area. To adjust the Keeton
®
Seed
Firmer, lower the implement until the disks of the row units
are resting on the ground.
Keeton
®
Seed Firmer Adjustment
The optional Keeton
®
Seed Firmer is an engineered
polymer shape that slides down the seed trench. It
traps seeds as they exit the seed tube and firms them
into the bottom of the “V”.
Refer to Figure 67
The Firmer is provided with a preset tension which is
recommended for using the first year. The tension
screw
can be tightened in subsequent years
according to your needs. Firmers should provide just
enough tension to push seeds to the bottom of the
trench.
Figure 66
Opener Disk Scraper
27075
1
2 1 2
Figure 67
Keeton
®
Seed Firmer
26443
1
1