Great Plains YP2425A Operator Manual - Manual (Page 58)

54 YP2425A Table of Contents Index Great Plains Manufacturing, Inc.
401-626M Table of Contents Index 2014-02-10
Marker Disk Adjustment
Sharp Object Hazard:
Use caution when making adjustments in this area. Marker
disks may be sharp.
Refer to Figure 62
1.
To change angle of cut, and the width of the mark,
loosen
1 ⁄
2
inch bolts holding the disk assembly.
For a wider mark , increase the angle of the
marker with respect to the tube . For a narrower
mark , reduce the angle.
Note: Do not set a marker angle wider than need to make
a useful mark. Excess angle increases wear on all
marker components.
2. Tighten bolts .
Note: The direction of travel tends to drive the disk
angle to Wide. If bolts are not tight enough, or
loosen over time, the disk will slip into the Wide
mark configuration.
Marker Extension
Marker width needs to be adjusted once for the initial
YP2425A Planter setup, and later only if changing row
spacing (including locking up row units for single-row
operation on a twin-capable planter).
1. Move the planter to a location where both markers
may be safely unfolded. Unfold the planter. Lower
the planter. Unfold one marker.
2. Find the suggested initial marker Extension in the
following table. Extension distance is the same for
both planter sides unless otherwise noted.
Refer to Figure 63 and Figure 64
3. Measure out the Extension distance from the
center-line of each outside end row unit (or row unit
in use for twin-row in lock-up). Do not measure to
center of row pair.
4. Mark the ground at this point.
5. To adjust marker width, loosen nuts on U-bolts .
Move marker disk tube in or out to get the proper
adjustment. Tighten nuts .
6. Repeat step 3 through step 5 for the other side.
7. With the planter still lowered, drive forward a few feet
for each side.
8. Check the mark locations. Adjust to obtain the table
value.
Figure 62
Marker Disk Angle
11757
T
2
1
N
W T
2
W
1
N
Figure 63
Marker Extension
26054
Row Spacing Marker Extension
15 inch Single 360 inch (914 cm)
20 inch Single 370 inch (940 cm)
70 cm Single 945 cm (372 inch)
30 inch Single 375 inch (952.5 cm)
30 inch Twin-Row 371 inch (942 cm)
30 inch Twin,
rear units locked-up
371 inch Left Side (942 cm)
379 inch Right Side (963 cm)
E
E
2
T
E
Figure 64
Marker Extension Adjustment
26055
1
2
3
E
1 2
3
1