Great Plains 3N-4025P Operator Manual - Manual (Page 44)

3N-4010P, 3N-4015P, 3N-4020P and
3N-4025P
196-286M 4/23/2010
42
Refer to Figure 46
Minimum and maximum settings are indicated by
position of adjustment cam.
Each notch on the adjustment cam will increase
the down pressure on the opener springs. Use the
chart below as a setting reference.
Spring Down Pressure
Opener Seeding Depth
Refer to Figure 47
Side depth wheels beside the opener disks con-
trol opener seeding depth. The position of an
adjustable stop determines seeding depth.
Cam Notch Pounds
one 345
two 370
three 400
four 450
five 500
six 550
21966 Minimum setting
Maximum setting 21967
Figure 47
25 Series Opener with Meter
Side depth wheel
Disk
20451
Figure 46
Adjustment Cam Settings