Great Plains YP1625 Operator Manual - Manual (Page 78)

74 YP1225 and 1625 Great Plains Manufacturing, Inc.
401-226M 07/09/2009
Disk Spreaders and Scrapers
Note: It is normal for the blade spreader to have some
looseness in the holder and between the blades.
Some looseness is required for proper operation.
Refer to Figure 93
1.
Remove side gauge wheels from arms to access
row-unit disks and scrapers.
2. With the unit raised, check blade spreader for
wear. Replace spreader if it is 1 ⁄
2
in wide or narrower.
To replace, remove disk blade , drive out roll pins
, and install new spreader.
3. When reinstalling disk blades, put two shims
between bearing and shank on each blade. Tighten
bolts.
Note: You may need fewer washers on worn disks.
4. Check that outside disk scrapers are formed to
disk blades to help remove any mud. Bend and twist
scrapers to fit blades as necessary. After every 200
acres of operation, check outside scrapers for proper
adjustment and wear. Replace outside scrapers as
necessary.
25 Series Row-Unit Side Wheels
Figure 94
1.
Lift opener side wheel off the ground. Move tire in
and out to check for end play. Check for roughness in
bearing by rotating wheel. If bearings are rough,
inspect and replace if necessary.
2. The side wheels are preset at the factory. However,
because of normal wear it may become necessary to
make adjustments so the wheel remains close to the
disk. To prevent plugging, loosen clamp bolt
and
slide arm inward to take up gap between side
wheel and disk blade. If more adjustment is needed,
go to step 3.
3. Remove bolt and wheel . Remove shims
from the inside of wheel and place them on the out-
side of wheel
. Always place removed shims from
the inside to the outside. When installed, wheel
should turn freely and not hit the arm at the curve.
Do not add any more shims than necessary.
4. Disassemble side gauge wheel arm from unit.
Remove bushing from sleeve and check for
wear. If necessary, replace bushing.
5. When reinstalling side gauge wheels, align tab on
hex adjustment
with notch in bushing. Replace
bolt and tighten.
6. Adjust side gauge wheels. See “Side Gauge Wheel
Adjustments” on page 52.
!
CAUTION
Disk edges are sharp. Be careful when working in this area.
Figure 93
Spreaders and Scraper s
22839
1
2
3
4
5
2
4
1
2
3
4
14
11
17
16
10
18
13
15
12
Figure 94
Adjusting Gauge Wheel Spacing
21894
{
5
10
11
12 13 14
15
11
16 17
18