Great Plains 3N-4025P Operator Manual - Manual (Page 62)

3N-4010P, 3N-4015P, 3N-4020P and
3N-4025P
196-286M 4/23/2010
60
Marker Width
Refer to Figure 90
You will need to adjust marker width to account for
your row spacing. First determine the correct
marker width from the diagram on page 48, then
adjust the marker to the correct width. Finally,
check the actual marker width in the field and
make further adjustments as necessary.
To adjust marker width, loosen nuts (2) on
U-bolts (1). Move marker disk tube (3) in or out to
get the proper dimension.
To check that the marker is adjusted to the correct
width, lower drill in the field and drive forward a
few feet. Measure from the middle of the outside
row to the mark in the ground made by the marker
disk. The measurement should match those
shown in the diagrams. Make further adjustments
as necessary.
The diagram below shows marker width for 7 1/2-
inch, 10-inch and 15-inch opener spacing with all
meters open.
Wider row spacing can be achieved by shutting off
certain meters. The diagram on the next page
shows which rows to shut off, which to leave on
and the marker width to use.
18878
Figure 90
Marker adjustment