Great Plains 2510HDP Operator Manual - Manual (Page 53)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 49
2013-10-21 Table of Contents Index 118-245M
Unit-Mounted Coulter Adjustments
Unit-mounted coulters are optional. See page 130 for
ordering information.
Note: Unit-Mount Coulters are not factory-installed.
Check alignment and depth prior to first use.
Coulter Depth Adjustment
The ideal operating depth for unit-mounted coulters is
1 ⁄
4
in 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-mounting the coulter blade in one of the six mounting
holes arranged in a staggered pattern in the coulter
bracket.
Refer to Figure 34 and Figure 35
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.
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-above depth. See the table below.
4. Remove the 5 ⁄
8
-11 x 4in bolt, lock washer and nut (
in Figure 34).
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 the coulter blade.
Hole
No.
Depth of (new) coulter blade relative
to (new) opener blades
1in above
5 ⁄
8
in above
1 ⁄
4
in above
0 (factory standard hole)
3 ⁄
8
in below
3 ⁄
4
in below
Figure 34
10HD Series Unit-Mounted Coulter
22817
7
Figure 35
Coulter Blade Mounting Holes
23288
1
2
5
4
3
6
7
2
3
5
1
4
6