Great Plains YP4025F-1670 Operator Manual - Manual (Page 177)

Great Plains Manufacturing, Inc. Table of Contents Index Appendix B - Initial and Option Setup 173
2014-09-08 Table of Contents Index 401-571M
Refer to Figure 162 and Figure 163
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.
With tractor idling at a normal operating speed, adjust
marker folding to a safe speed. Excessive [un]folding
speed could damage markers and void the warranty.
After adjusting the folding speed, tighten jam nuts on hex
adjustment screws to hold settings.
Figure 162
Marker Sequence Valve Location
29302
1 2
F
S
S
Figure 163
Marker Speed Adjustment
14048
1
2
S
F