YP3025A
Appendix B - Pre-Delivery
171
2019-06-12
401-705M
Install Upper Marker Components
Marker disks and end tubes are removed for shipping.
The end tube may be inserted into the outer marker
arm
in any of four orientations. Great Plains
recommends that the spindle adjustment allow the disk
to pivot back, away from the direction of travel
.
If the markers are extended for this work, also set the
initial marker extension based on the row spacing.
1. At each marker, select one each:
marker disk and tube assembly
806-110C U-BOLT 5/8-11 X 3 1/32 X 4 1/2
and two sets:
803-021C NUT HEX 5/8-11 PLT
804-022C WASHER LOCK SPRING 5/8 PLT
2. Insert the end tube into the outer marker arm
.
Insert to initial marker extension value, or about
halfway if extension is not known. Secure with
U-bolt
, lock washers
and nuts
.
Dual Marker Speed Adjustment
Overhead Sharp Object Hazard:
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.
Refer to Figure 148 and Figure 149
Adjust folding speed for dual markers with hex
adjustment screws on the sequence valve body. The
valve sequence body is located on top of the left wing
frame.
Loosen jam nuts before making adjustments.
There is one adjustment screw for unfolding speed
and one for folding speed . You can identify adjustment
screws by markings stamped in valve body.
Turn adjustment screws clockwise ( : slower) to
decrease [un]folding speed and counterclockwise
( : faster) to increase [un]folding speed.
Figure 146
Marker Disk Spindle Orientation
11757
T
T
Figure 147
Marker Final Assembly
29177
36
1
35
34
2
36
34
35
36
35
34
Figure 148
Marker Sequence Valve Location
29302
1
2
S
F
