Great Plains YP825A Operator Manual - Manual (Page 169)

Great Plains Manufacturing, Inc. Table of Contents Index Appendix C - Initial Setup 165
2014-08-15 Table of Contents Index 401-651M
Marker Extension
Marker extension needs to be adjusted once for the initial
YP425A, YP625A and YP825A planter setup, and later
only if changing row spacing (including row shut-off for
single-row operation on a twin-capable planter).
1. Move the planter to a location where both markers
may be safely unfolded.
2. Lower the planter. Pull forward and lower rows into
ground.
Note: Due to the relatively steep arm angles of short
markers, extension measurements are likely to be
incorrect if the main tool bar is not at normal
operating height (26 inches).
3. Tilt up and unfold one marker.
Find the suggested initial marker Extension in the
table on this page.
Note: When using altered twin-row spacings, marker
extensions are different for left and right.
Refer to Figure 151 and Figure 152
4.
Measure out the Extension distance from each
outside end row unit (whether in use or not). Do not
measure to center of row pair.
5. Mark the ground at this point.
6. To adjust marker width, loosen nuts on U-bolts .
Move marker disk tube in or out to get the proper
adjustment. Tighten nuts .
7. Repeat steps 3 through 6 for the other side.
8. With the planter still lowered, drive forward a few feet
for each side.
9. Check mark locations. Adjust to obtain table value.
Figure 151
Marker Extension
31039
E
Figure 152
Marker Extension Adjustment
25450
1
2
3
E
E
1 2
3
1