10hd opener maintenance, 10hd disk spreader-scraper, 20 series opener maintenance – Great Plains 3N-4025P Operator Manual User Manual
Page 156: 20 series side gauge wheels

152
3N-40P
Great Plains Manufacturing, Inc.
196-538M
2014-01-29
10HD Opener Maintenance
10HD Disk Spreader-Scraper
Refer to Figure 211
To perform this inspection (and replacement), it may be
necessary to remove one or both opener disk blades.
1.
With unit raised, remove bolt
holding on one or
both blades.
Note: Keep the spacer washers
on the outside of the
disk on the bolt. Do not misplace the spacers
on
the insider of the disk. They control disk-to-disk
contact.
2.
Check blade spreader
for wear. Replace spreader
assembly if the lower section
ahead of the seed
tube bracket is
1
⁄
2
inch (13 mm) thick or narrower.
3.
To replace, remove seed tube
, drive out roll
pins
and install new spreader.
4.
When reinstalling disk blades, put spacers back on in
same order as removed.
Note: It is normal for blade spreader to have some
looseness in the holder and between the blades.
Some looseness is required for proper operation.
20 Series Opener Maintenance
20 Series Side Gauge Wheels
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 the bearings are rough,
inspect and replace if necessary.
2.
Check for the correct number of flat washers
and
machine washer
between the side gauge
wheel
and the wheel arm
. There must be three
flat washers
and one machine washer
between
the wheel bearing and arm with the machine
washer
next to the arm. There should be three flat
washers
and one lock washer
on the outside of
the wheel. When installed, the wheel should turn
freely and not hit the arm at the curve. Do not add
any more washers than necessary.
3.
Disassemble side-gauge-wheel arm from unit.
Remove bushing
bushing for wear. Replace bushing if necessary.
4.
When reinstalling side gauge wheels, align tab on
hex adjustment
with notch in bushing. Replace
bolt and tighten.
Figure 211
10HD Spreader/Scraper
27228
3
2
1
4
5
6
7
1
2
3
4
5
6
7
Figure 212
20 Series Side Depth Wheel
20432
1
2
3
4
5
6
7
8
9
4
3
5
7