Great Plains YP1625 Operator Manual - Manual (Page 53)

Great Plains Manufacturing, Inc. Adjustments 49
03/12/2012 401-226M-A
Marker Adjustments
See also:
“Marker Setup” on page 129 and,
“Marker Maintenance” on page 82.
Crushing and Sharp Object Hazards:
You may be injured if hit by a folding or unfolding marker.
Markers may fall quickly and unexpectedly if the hydraulics
fail. Never allow anyone near the planter when folding or
unfolding the markers.
Dual Marker Speed Adjustment
Refer to Figure 61
Adjust folding speed for dual markers with hex adjust-
ment screws on sequence valve body. There is an
adjustment screw for raising speed
and one for lower-
ing speed . You can identify adjustment screws by
markings stamped in the valve body.
Turn adjustment screws clockwise to decrease folding
speed and counterclockwise to increase folding speed.
With tractor idling at normal operating speed, adjust
marker folding to a safe speed. Excessive folding speed
could damage markers and void the warranty.
After adjusting folding speed, tighten jam nuts on hex
adjustment screws to hold settings.
FigureSpacer:
Marker Disk Adjustment
Sharp Object Hazard:
Marker disks may be sharp. Use caution when making adjust-
ments in this area.
Refer to Figure 62
To change angle of cut, and the width of the mark, loosen
1 ⁄
2
-inch bolts holding disk assembly.
For a wider mark (W), increase the angle of the marker
with respect to the tube
. For a narrower mark (N),
reduce the angle.
You can also invert the disc blade on the hub to change
the direction of throw.
Tighten bolts .
Note: The direction of travel (T) tends to drive the disk an-
gle to Wide. If bolts are not tight enough, or loosen
over time, the disk will slip into the Wide mark con-
figuration.
FigureSpacer:
Figure 61
Marker Extension Adjustment
14048
F
S
S
1
2
1
2
FigureSpacer:
Figure 62
Marker Disk Angle
11757
N
W
T 5
6
6
5
6