Great Plains 2525P Operator Manual - Manual (Page 20)

16 2020P/2025P and 2520P/2525P Great Plains Manufacturing, Inc.
118-231M 2013-05-10
Frame Height
Drill operating height affects the working range of the
drill openers. Initially adjust frame height as explained
under “Leveling the Drill” on page 15. You can make
further adjustments to compensate for field conditions.
Note: If your drill has 25 Series openers, the gauge
wheel height may need adjustment. Gauge wheels
are set for 20 Series at the factory, and your dealer
may not have re-adjusted them.
Link-Adjust Gauge Wheels
Refer to Figure 9
Make sure block mount of the spring linkage is in the
correct mount hole , for bedded/non-bedded.
Set spring linkage length. Dimensions are provided for
both centerline-to-centerline distance
and length of
reveal on the threaded rod:
Loosen top nut . Turn spring linkage to shorten or
lengthen. Retighten by turning spring linkage into top
nut . Single-link is right-hand threaded.
Turnbuckle-Adjust Gauge Wheels
Refer to Figure 10
1. Loosen jam nut near top clevis of each
gauge-wheel turnbuckle. Jam nut is left-hand
threaded.
2. Make sure upper clevis is in correct mount hole for
row unit Series, and bedded/non-bedded.
3. Adjust turnbuckle length per the following table:
4. After setting both gauge wheel assemblies to the
same configuration, tighten jam nuts
.
When adjusting the linkage length, remember:
• Lengthening linkage/turnbuckle raises drill.
• Shortening linkage/turnbuckle lowers drill.
• Level drill with top three-point link.
Note: Reducing opener height increases the risk of
opener damage on rocks or obstructions.
20 Series 25 Series
non-
bedded
top hole ;
6 1 ⁄
8
in (15.6cm),
reveal 3 ⁄
4
in (19mm)
top hole ;
c/l: 6 1 ⁄
2
in (16.5cm),
reveal 3 ⁄
8
in (9.5mm
bedded
bottom hole ;
6 1 ⁄
8
in (15.6cm),
reveal 3 ⁄
4
in (19mm)
bottom hole ;
c/l: 6 1 ⁄
2
in (16.5cm),
reveal 3 ⁄
8
in (9.5mm
20 Series 25 Series
non-
bedded
top hole ;
17 1 ⁄
2
in (44.5cm)
second hole ;
17 1 ⁄
2
in (44.5cm)
bedded
second hole ;
20 3 ⁄
4
in (52.7cm)
second hole ;
21 1 ⁄
2
in (54.6cm)
Figure 9
Link-Adjust
Gauge Wheel
26216
26217
5
1
2
3
6
4
1
6
5 6
3 3
2 2
Figure 10
Turnbuckle-Adjust
Gauge Wheel
22845
1
2
4
5
3
1
2 3
4
6
5 6
6
5
2 3
3 3
1
2
4
1