Great Plains 3N4010HDA Operator Manual - Manual (Page 40)

36 3N-4010HDA Table of Contents Index Great Plains Manufacturing, Inc.
196-444M Table of Contents Index 2013-09-24
Before making any adjustments to individual
frame-mounted coulters, setup the seeding depth on the
row units, and verify that the coulter tool bar height is set
for your conditions.
Individual Frame-Mounted Coulter Depth
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 32
3.
At each frame-mounted 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 disk 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 nor-
mal for there to be a small gap between the clamps.
6. Tighten the four U-bolts .
7. Lower the drill to planting height and pull forward 30
feet (10m).
8. Check coulter blade to opener blade (furrow center-
line) alignment.
Figure 32
Frame-Mounted Coulter Height
10300
1
2
3
1 2
3
1
3
2