Great Plains 3N-4025P Operator Manual - Manual (Page 41)

4/23/2010 196-286M
39 Adjustments
Refer to Figure 38
To adjust down pressure, use adjustment tool
stored under walkboard. Position tool in hole on
spring mounting plates, and pull down. Move the
adjustment cam to the new setting.
Refer to Figure 39
Minimum and maximum settings are indicated by
position of adjustment cam.
Opener Seeding Depth
Refer to Figure 40
Side depth wheels beside the opener disks con-
trol opener seeding depth. The position of an
adjustable stop determines seeding depth.
Adjustment
tool
Figure 38
Adjustment Tool
18409
Figure 39
Adjustment Cam Settings
12104
Minimum setting Maximum setting
Figure 40
20 Series Opener with Meter
Side depth wheel
Disk
18273