Great Plains 2510HDF Operator Manual - Manual (Page 25)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 21
2013-11-11 Table of Contents Index 288-340M
Marker Extension Setup
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.
Refer to Figure 19
10HDF drills have their row units spaced equally about
machine centerline. Set the initial marker extension
to
equal the swath, measured from tool bar center to the
mark left in the ground when the drill is lowered.
If you modify your row spacing by plugging seed meters,
you may 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 may be the easier way to
establish the correct marker extension.
Marker Extension Adjustment
Refer to Figure 20
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 page 21 for a table of
suggested initial marker extensions, measured from
drill centerline.
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.
Other marker topics in this manual include:
Operations:
“Marker Operations” on page 25
Adjustments:
“Marker Disk Angle” on page 29
“Marker Speed” on page 29
E
Figure 19
Marker Extension
Drill Model Marker Extension (Swath)
1510HDF-1810 180in (457 cm)
1510HDF-2475 180in (457 cm)
2010HDF-2410 240in (610 cm)
2010HDF-3275 240in (610 cm)
2510HDF-2015 300 in (762 cm)
2510HDF-20TR30 300 in (762 cm)
2510HDF-2910 290 in (737 cm)
2510HDF-4075 300 in (762 cm)
E
Figure 20
Marker Extension Adjustment
19204
1
2 1 2
2
1