Great Plains YP1630F-1670 Operator Manual - Manual (Page 57)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 53
2012-12-27 Table of Contents Index 401-832M
Unit-Mounted Coulter Adjustments
Optional conservation coulters allow the row unit to
penetrate tough ground conditions. Adjust coulters to run
at the same depth as, or slightly deeper than the opener
discs. Coulter (and opener) blades wear with time, and
may need adjusting.
Raise planter and install cylinder locks before working on
coulters. Do not attempt to move blade when the current
or new position causes it to contact the ground during
adjustment. Be careful around the front end of row units.
Coulter blades may be sharp.
Refer to Figure 50
To adjust coulter depth, loosen the
3 ⁄
4
inch jam nuts
and
3 ⁄
4
×3 inch hex bolt ).
By turning cam stud , rotate cam casting to the desired
height. Each scale notch represents about 6 mm
(
1 ⁄
4
inch) of depth.
Tighten bolt and jam nut to values recommended on
“Torque Values Chart” on page 119.
Refer to Figure 51
The coulter disc
must be aligned with the opener
disc . If it is not, loosen the mounting bolts to adjust.
Row-Unit Opener Disc Adjustments
30 Series openers have three adjustments:
1. planting/seed depth
2. opener disc to disc clearance (page 54)
3. gauge wheel/opener disc clearance (page 54)
Setting Planting Depth
Refer to Figure 51
The “T” handle
sets planting depth by limiting the how
high the side depth gauge wheels ride relative to the
opener discs. The position of the seed tube itself is fixed
relative to the discs, and is not adjusted.
To adjust seed depth, pull the “T” handle up and back,
move it forward or aft, and set it back in a different pair of
holes in the scale.
• For shallower planting, move the “T” handle
forward.
• For deeper planting, move the “T” handle back.
7
8
9
Figure 50
30 Series Unit-Mounted Coulter
34563
7
8
9
Figure 51
Opener Adjustments
34459
2
3
1
4
5
6
4
5 6
1
1
1
1