Great Plains 3S-4010HDF Operator Manual - Manual (Page 55)

Great Plains Manufacturing, Inc. Adjustments 51
03/28/2012 196-522M
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 60
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 mov-
ing 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 61
1.
Raise the drill and install the transport locks.
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.
FigureSpacer:
FigureSpacer:
Figure 60
Checking Disk Contact
26447
FigureSpacer:
Figure 61
Adjusting Disk Spacers
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