Great Plains 3P1006NT Operator Manual - Manual (Page 38)

34 3P1006NT Table of Contents Index Great Plains Manufacturing, Inc.
151-144M Table of Contents Index 2011-12-20
Coulter Depth (Individual Rows)
The running depth of all coulters is adjusted
simultaneously by changing the tool bar height. Adjusting
the height of a small number of coulters may be useful
for rows in tire tracks.
Adjust individual coulters as follows.
1. On level ground, lower the drill until coulters just
touch the ground.
2. Raise the drill by the extra amount you need to lower
the rows in tracks.
Refer to Figure 23
3.
At each coulter to be adjusted, slightly loosen all six
bolts ( ,
) at the mount.
4. Using a rubber mallet, tap the spring bar up or
down until the bottom edge of the coulter disc is at
ground level.
5. Tighten the two clamp bolts until both U-bolts are
firmly against the edge of the spring bar . It is
normal for there to be a small gap between the
clamps.
6. Tighten the four U-bolts .
7. Lower the drill and pull forward 30 feet (10m).
8. Check coulter blade to opener blade (furrow
centerline) alignment.
Drill Weight Adjustment
In heavy no-till conditions, or if it is otherwise necessary
to increase coulter spring force, extra frame weight is
probably required (or the higher forces will just lift the drill
off the ground, resulting in unreliable ground drive
operation).
Adding weight requires the optional weight kit and
user-provisioned standard “suitcase” tractor weights (kit
does not include weights). See page 64 for ordering and
page 91 for installation.
The kit includes two brackets. Each bracket accepts up
to five 100 pound (45 kg) weights. The following table
shows the additional force per row that the kit can
provide.
Note: Do not adjust the bar height of all coulters. Use the
tractor 3-point lift arms and front gauge wheels to
set group coulter height (page 16).
Figure 23
Frame-Mounted Coulter Height
10300
2
1
3
1 2
3
1
3
2
Figure 24
Adding Weights
28364
Weights Additional Force per Row
Added Pounds Kilograms
2 13 6
4 27 12
6 40 18
8 53 24
10 67 30
32800C