Great Plains YP1625 Operator Manual - Manual (Page 64)

60 YP1225 and YP1625 Great Plains Manufacturing, Inc.
401-226M-A 03/12/2012
Row-Unit Opener Disk Adjustments
Opener Disc Contact Region
Refer to Figure 83
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.
The ideal spacing causes the blades to be in contact for
about one inch
. If you insert two pieces of paper
between the blades, they should slide to within zero
(touching) to 1.5in (3.8cm) of each other. If zero, the gap
between the blades should not be significantly greater
than the thickness of two sheets of paper.
If the contact region is significantly larger or there is a
large gap, it needs to be adjusted by moving one or more
spacer washers.
Adjusting Disc Contact
Refer to Figure 83 and Figure 84
1.
Raise the planter and install lift cylinder locks.
2. Remove the side gauge wheels on the row unit in
need of adjustment.
3. Remove the bolt retaining the opener disc on
one side. Carefully remove the disc. Do not lose the
hub components and spacer washers
, . Make
note of how many spacer washers are between
the disk and the nut bar .
Note: When the bolt is fully removed from the disk, a dust
cap or hold-down bracket will be loose.
4. To reduce the spacing between the discs (the normal
case), move one spacer washer from the inside
to
the outside of the disc. Do not discard any spac-
ers. They will be moved to the inside upon eventual
replacement of a completely worn out blade.
5. Re-assemble and check disk contact.
Row-Unit Planting Depth
Refer to Figure 85
Side depth wheels
outside the row-unit disks con-
trol row-unit planting depth. The position of an adjustable
T-handle stop
determines planting depth.
Set planting depth by adjusting handle . To adjust, first
raise row-units slightly, then lift and slide handle on top of
row-units. Adjust all handles to the same setting.
For shallower planting, slide handle forward toward
meter.
For deeper planting, slide handle back from meter.
FigureSpacer:
1
FigureSpacer:
Figure 83
Opener Disc Contact Region
26127
2
1
FigureSpacer:
Figure 84
Opener Disc Spacers
26128
6
5
3
4
7
8
2
3 4
5 6
5
7
8
5
6
FigureSpacer:
Figure 85
25 Series Side Depth Wheel
22886
3
1
2
1 2
3
3