Great Plains
| 118-949M | 2018-07-03
60
1525P and 1510HDP
Adjustments
Marker Extension
If markers were ordered as a separate accessory, or not
dealer-installed, mount them per the installation
instructions supplied with the markers.
Check the marker extension
. The installation
instructions may not cover setting the correct marker
length, or may specify a length not optimal for your row
configuration.
3-Point Drill drills have their row units spaced equally
about machine centerline. Set the initial marker
extension to the values specified in the diagrams on the
following pages, measured from the centerline of the
outside row (not the centerline of a pair) to the mark left
in the ground when the drill is lowered.
If you modify your row spacing by shutting off rows, this
can also change the marker extension required. Some
changes can result in an asymmetric row spacing about
machine centerline. This usually causes the marker
extension to be different for left and right sides,
depending on the direction of planting for each
successive pass.
Making short practice passes confirms correct marker extension.
Marker Extension Adjustment
To adjust a marker width or disk pivot orientation:
1.
Lower drill to field position and extend the marker
side to be adjusted.
2.
If disk angle or direction is to be changed, make that
change before adjusting extension.
3.
Pull forward to fully settle drill and leave a mark to
check.
4.
On telescoping outer marker tubes, loosen both jam
nuts
and both
1
2
in set screws
.
5.
Move marker disk tube in or out to get the desired
mark placement. See diagrams starting on page 60
suggested initial marker extensions, measured from
outside row to mark.
6.
To change throw direction of marker, remove inner
tube completely, and reinsert at desired orientation.
7.
Tighten both
1
2
in set screws and then both jam
nuts.
8.
Pull forward to check actual results and fold marker.
Marker Extension Values
The diagrams in this section show marker extension
distances for all supported row unit configurations of all
drills covered by this manual.
Measure from the centerline of the outside row unit
in
use
on each side. Do not measure from a shut-off row
unit.
E
Figure 79
Marker Extension
E
Figure 80
Marker Extension Adjustment
19204
1
2