Great Plains 3P600 Operator Manual - Manual (Page 29)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 25
2011-10-21 Table of Contents Index
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 21).
Figure 19
Adjusting Opener Depth
26441
1
2
B
F 1
2
F
B