Great-plains 2025P Operator Manual User Manual Page 56

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2025P, 2020P Bedded, and
2010HDP
118-928M
8/14/2006
54
Folding Speed with Needle Valves
Refer to Figure 78
A needle valve controls the folding speed of mark-
ers that are plumbed separately. The needle valve
is near the rod end of the marker cylinder.
With tractor idling at a normal operating speed,
adjust marker folding to a safe speed. Turn adjust-
ment knob clockwise to reduce folding speed or
counterclockwise to increase folding speed. Ex-
cessive folding speed could damage markers and
void the warranty.
Folding Speed with Sequence Valve
Refer to Figure 79
If markers are tied together with an optional se-
quence valve (P/N 113-466A), adjust folding
speed with hex adjustment screws on the se-
quence-valve body. There is one adjustment
screw for raising speed (1) and one for lowering
speed (2). Identify adjustment screws by mark-
ings stamped in valve body.
With tractor idling at a normal operating speed,
adjust marker folding to a safe speed. Turn adjust-
ment screws clockwise to decrease folding speed
and counterclockwise to increase folding speed.
Excessive folding speed could damage markers
and void the warranty.
After adjusting the folding speed, tighten jam nuts
on hex adjustment screws to hold settings.
Marker Disk Adjustment
!
CAUTION
Marker disks may be sharp. Use caution when making
adjustments in this area.
Changing disk angle
Refer to Figure 80
If mark left by marker disk is not clearly visible, ad-
just disk angle to make a wider mark. Loosen two
1/2 inch bolts (1) holding disk assembly (2). Ro-
tate disk assembly as desired.
Figure 78
Needle Valve
17620
Figure 79
Speed Adjustment, Sequence Valve
14048
Hex adjustment
screws
Increase
speed
Decrease
speed
Figure 80
Disk Angle
11757
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