Great Plains 1300 13-Foot Operator Manual - Manual (Page 40)

36 1300 and 1300F Table of Contents Index Great Plains Manufacturing, Inc.
175-157M Table of Contents Index 2014-04-15
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 must be reset when
blades are replaced.
Refer to Figure 34
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 1.75 inch (0 to 4.4 cm).
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.
Adjusting Disc Contact
Sharp Object Hazard:
Row unit disk blades may be sharp. Use caution when making
adjustments in this area.
Refer to Figure 35
1.
Raise the openers and lock them with the transport
pin.
2. Remove the bolt retaining the opener disc on one
side. Carefully remove the disc, noting how many
spacers are outside the disk and inside the disk.
Do not lose the hub components and spacer
washers.
3. To reduce the spacing between the discs (the normal
case), move one spacer washer from the inside to
the outside of the disc.
4. Re-assemble and check disc contact.
Disk Scraper Adjustments
To keep opener disks turning freely, dirt scrapers are
mounted between disks to clean as disks rotate.
Standard 00 Series row units include a double-disk
slotted scraper. A carbide scraper is optional (page 55).
Refer to Figure 36
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.
Sharp Object Hazard:
Row unit disk blades may be sharp. Use caution when making
adjustments in this area.
Figure 34
Checking Disk Contact
26451
2
1
3
3
3
3
Figure 35
Adjusting Disk Spacers
26385
Figure 36
Opener Disk Scraper
16163