Great Plains 3S-3000HDF Operator Manual v2 - Manual (Page 60)

56 3S-3000HD Table of Contents Index Great Plains Manufacturing, Inc.
195-068M Table of Contents Index 2014-02-11
Disk Blade Adjustments
Opener disc angle and stagger is not adjustable, but
disc-to-disc spacing is, and may need attention as discs
experience normal wear. Spacers will need to be reset
when blades are replaced.
Refer to Figure 55
The ideal spacing causes the blades to be in contact for
about one inch. If you insert two pieces of paper between
the blades, the gap between them should be 0 to 1.75in
(0-4.4cm).
If the contact region is significantly larger or smaller (or
there is no contact at all), it needs to be adjusted by
moving one or more spacer washers. If the contact
region varies with blade rotation, one or both blades is
likely bent and in need of replacement.
FigureSpacer Adjusting Disc Contact
Sharp Object Hazard: Row unit disk blades may be sharp. Use
caution when making adjustments in this area.
Refer to Figure 56
1.
Raise the drill and lock it up by moving the Trans-
port/Field handle to TRANS.
2. Remove the bolt retaining the opener disc on one
side. Carefully remove the blade , noting how
many spacers are outside the flange dust cover
and inside the disk. Do not lose the hub components
and spacers.
3. To reduce the spacing between the discs (the normal
case), move one spacer washer from the inside to
the outside of the flange dust cover.
4. Re-assemble and check disc contact.
Disk Scraper Adjustments
Sharp Object Hazard: Row unit disk blades may be sharp. Use
caution when making adjustments in this area.
Disk scrapers are optional. See page 94 ordering
information and page 105 for installation. To keep opener
disks turning freely, dirt scrapers are mounted between
disks to clean as disks rotate.
Refer to Figure 57
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.
FigureSpacer
FigureSpacer
Figure 55
Checking Disk Contact
26395
FigureSpacer
Figure 56
Adjusting Disk Spacers
26385
4
1
3
3
3
2
1
2
3 4
FigureSpacer
Figure 57
Opener Disk Scraper
26463