Great Plains 2525A Operator Manual - Manual (Page 105)

Great Plains Manufacturing, Inc. Table of Contents Index Appendix B - Initial and Option Setup 101
2013-06-04 Table of Contents Index 118-999M
Marker Extension Values
The diagrams in this section show marker extension dis-
tances 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.
Reading a Marker Extension Diagram
Refer to Figure 92
Find the chart for your drill width (20ft or 25ft), row unit
Series (20 or 25), and row spacing.
The Figure title block identifies the drill model, size,
row unit type, default row count, default row spacing, and
whether the diagram applies to a modified row spacing.
Each illustration shows three drills, their tool bars repre-
sented by the horizontal lines
. The large arrows
show the direction of travel.
The small arrows show active row units. For modified
row spacings, the short vertical lines (no arrows) show
which row units to shut off.
Note that Left and Right extension dimensions may
not be the same, and can be substantially unequal.
Model 2025A Marker Extension
7.5 TO TR30
153.75 153.75 Right Extension
142.50 in
361.95 cm
Left Extension
172.50 in
438.15 cm
Figure 92: Model 2x2xA-0000 2xft 2x Series 00-Row
00in Single-Row: as 00in Twin-Row 26231
SAMPLE DIAGRAM
1
3
4
5
7 6
2
1
2 3
4
5
6 7
TR36
122.00 122.00 122.00 in
309.88 cm 122.00 in
309.88 cm
Figure 93: Model 2025A-12TR36 20ft 25 Series 12-Row
36in (8in pairs) Twin-Row: Standard Spacing 26233
TR38
129.00 129.00 129.00 in
327.66 cm 129.00 in
327.66 cm
Figure 94: Model 2025A-12TR38 20ft 25 Series 12-Row
38in (8in pairs) Twin-Row: Standard Spacing 26233