Great-plains 2025P Operator Manual User Manual Page 74

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2025P, 2020P Bedded, and
2010HDP
118-928M
8/14/2006
72
Opener Disks
1. On 20 or 25 Series openers, remove side
gauge wheel arm & wheel assembly by re-
moving 5/8 inch bolt (4) to access opener
disks and spreaders. See Figure 100 on the
previous page.
2. Check disk blades for wear.
3. When reinstalling disk blades, put two shims
(4) between bearing and shank on one blade
and two shims under bolt. Tighten bolt. On
opposite side, reinstall blade with two shims
between bearing and shank and two shims
under bolt. Tighten bolt.
Refer to Figure 101
4. Check contact point between disk blades.
Place a piece of paper in top gap between
disk blades. Bring paper down until it stops. In
lower gap place another piece of paper. Bring
paper up until it stops. The distance must be
between 1/2 and 1 3/4 inches. Add or remove
shims as needed to get the correct contact
point.
!
CAUTION
Disk edges are sharp. Be careful when working in this
area.
20 Series Opener Disk Spreader
Refer to Figure 102
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.
Figure 101
Opener Disks Contact Point
1/2 inch to
1 3/4 inches
18412
20433
Figure 102
Disk Spreader
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