Great Plains NTA3007HD Operator Manual - Manual (Page 100)

96 NTA907HD or NTA3007HD
166-207M 04/04/2011
Adjusting Disk Contact
Row unit disk blades may be sharp. Use caution when making
adjustments in this area.
Refer to Figure 104
1.
Unfold the drill (page 25). Leave the row units raised.
2. Place blocking or stands under the opener sub-
frames.
3. Remove the bolt retaining the opener disk on one
side. Carefully remove the blade , noting how
many spacers are outside the disk and how many
are inside the disk. Do not lose the hub components
and spacers.
4. To reduce the spacing between the disks (the normal
case), move one spacer washer from the inside to
the outside.
Note: When installing new blades, it is generally neces-
sary to move outside spacers back inside after both
disks are mounted.
5. Re-assemble and check disk contact.
Disk Scraper Adjustments
Disk scrapers are optional. See page 143 ordering infor-
mation and page 166 for installation. To keep opener
disks turning freely, dirt scrapers are mounted between
disks to clean as disks rotate.
Row unit disk blades may be sharp. Use caution when making
adjustments in this area.
Refer to Figure 105
As field conditions vary, scrapers may need to be
adjusted. In damp conditions, lower scrapers. If openers
are not turning freely, raise scrapers. To adjust, loosen
bolt and move scraper as needed.
Null4:
Figure 104
Adjusting Disk Spacers
29350
1
3
2
3
2
1
2
3
Null4:
Figure 105
Opener Disk Scraper
26463