Great Plains NTA2007HD Operator Manual - Manual (Page 84)

80 Great Plains Manufacturing, Inc. Contents Index NTA607/2007HD
166-283M Contents Index 04/04/2011
Planting Depth Adjustments
Planting depth is affected by several adjustments, sum-
marized here:
Refer to Figure 65
1.
Soil Conditions:
Changes in field conditions can require changes to
several of the adjustments below.
2. Row Unit Opener Depth: (page 93)
The T-handle directly controls opener depth by set-
ting the press wheel height.
3. Tool Bar Height: (page 81)
Spacers at the center section (master) lift cylinders
control the center section tool bar height when the
implement is lowered.
Wings must also be level (page 129) for this adjust-
ment to accurately set wing gauge wheel height.
In more challenging conditions, increased cart
weight transfer (page 85) may be required to prevent
openers from lifting tool bar.
4. Wing Weight Transfer: (page 85)
If the wings are not operating at desired planting
depth, more center section weight may need to be
transferred to wings.
5. Coulter Depth: (option, page 87)
Optional coulters prepare the furrow ahead of the
openers. If coulters are running too shallow or too
deep, the openers may not operate at the desired
depth.
6. Row Unit Spring Adjustment: (page 90)
Several rows (in tire tracks) may need to be set to
higher down-force in challenging conditions.
7. Opener Wear: (page 90)
Over time, opener disk wear can cause established
T-handle settings to become too shallow.
Null4:
Null4:
Figure 65
NTA607/2007HD Implement
31193
1
2
3
4
5
6
7