Great Plains 3N-3020P Operator Manual - Manual (Page 63)

3N-3010P and 3N-3020P
196-248M 4/23/2010
61
paper up until it stops. The distance must be be-
tween 1/2 and 1 3/4 inches. Add or remove shims
as needed to get the correct contact point.
Disk edges are sharp. Be careful when working in this
area.
20 Series Opener Disk Spreader
Refer to Figure 61
1. On 20 Series openers, remove side gauge
wheel arm and wheel assembly by removing
5/8 inch bolt (4) to access opener disks and
spreaders.
2. With the unit raised, check blade spreader (1)
for wear. Replace spreader if it is 7/16 inch
wide or narrower, or if opener is plugging with
dirt. To replace, remove disk blade (3). Drive
out roll pins (2) and install a new spreader.
NOTE: Disk spreaders are loose to move free-
ly.
20433
Figure 61