Great Plains 606NT Operator Manual - Manual (Page 42)

38 3P605NT, 3P606NT, 605NT & 606NT Table of Contents Index Great Plains Manufacturing, Inc.
151-061M Table of Contents Index 2014-02-10
Small Seeds Tube Adjustment (Option)
Refer to Figure 41
On a drill with the Small Seeds option, deeper seed
placement may be achieved by rotating the seed tube
to face forward.
This orientation is suggested only if the seed firmer is a
seed flap. If a Keeton
®
or Seed-Lok
®
is present, seed
falls on the firmer and may be scattered rather than
placed deeper.
Opener Depth (Press Wheel Height)
A press wheel attached to each opener body controls
seeding depth
. To maintain consistent depth, the
relationship between the bottom of the opener discs and
press wheel is fixed upwardly by an adjustable stop on
each opener.
The press wheels also close the seed trench and gently
press soil over seed. To provide consistent soil firming,
press wheels are free to move down from normal
operating position. This maintains pressing action even if
opener discs encounter obstructions or hard soil.
To adjust, first raise openers slightly, then lift and slide
T handles
on top of openers Adjust all press wheels to
the same height.
• Each increment of the handle adjusts the seeding
depth by approximately
1 ⁄
8
in. (6.3 mm). The range is
approximately 0 to 3
1 ⁄
2
in. (0-89 mm) seeding depth.
• For more shallow seeding, slide T handles forward
toward implement.
• For deeper seeding, slide T handles backward
away from implement.
If moving the T handle backward doesn’t cause the
opener to achieve desired depth, adjust the opener
frame down-force (page 34).
Figure 41
Small Seeds Tube
18618
1
1
Figure 42
Adjusting Opener Depth
26441
1
2
B
F 1
2
F
B