Great Plains 2525F Operator Manual - Manual (Page 38)

34 2020F, 2025F, 2520F and 2525F
118-232M 01/23/2012
25 Series Coulter Adjustments
Note: Coulters are not factory-installed. Check alignment
and depth prior to first use.
Coulter Depth Adjustment
The ideal operating depth for coulters is 1 ⁄
4
in (6mm)
above opener depth. Although they may have originally
been set to this depth, coulter (and opener) blades wear
with time, and may need adjusting.
Adjusting the coulter depth is accomplished by re-mount-
ing the coulter blade in one of the six mounting holes
arranged in a staggered pattern in the coulter bracket.
Refer to Figure 41 and Figure 42
Raise drill before working on coulters. Row unit may be
fully lowered or locked up. Do not attempt to move blade
when the current or new position causes it to contact the
ground during the adjustment. Be careful around the
front end of row units. Coulter blades may be sharp.
FigureSpacer
To adjust coulter depth:
1. Determine the present opener and coulter depths.
2. Note which bracket hole the coulter is presently
using.
3. Determine which new hole will position the coulter
closer to the
1 ⁄
4
in(6mm)-above depth. See the table
below.
4. Remove the 5 ⁄
8
-11 x 4in bolt, lock washer and nut (
in Figure 41).
5. Move the blade to the new position. Insert the bolt,
and tighten on the lock washer and nut.
If a worn coulter cannot be adjusted to satisfactory oper-
ating depth, replace coulter.
FigureSpacer
Figure 41
25 Series Unit-Mounted Coulter
29124
7
Hole
No.
Depth of (new) coulter blade relative
to (new) opener blades
1in (2.5cm) above
5 ⁄
8
in (1.6cm) above
1 ⁄
4
in (6mm) above
0
3 ⁄
8
in (1cm) below
3 ⁄
4
in (1.9cm) below
FigureSpacer
Figure 42
Coulter Blade Mounting Holes
29125
1
2
5
4
3
6
7
2
3
5
1
4
6