Great Plains PT1230 AA1062 Operator Manual - Manual (Page 29)

27
Section 4 Adjustments
PT1230 Pull-Type Folding Planter 401-069M-A 10/10/12
Great Plains Mfg., Inc.
Row Unit Mounted Coulter Adjustment
The optional coulter allows the planter to penetrate tough
ground conditions. It is recommended that either the stan-
dard or heavy duty spring package be used in conjuction
with this coulter.
Adjust the coulter to run 1-4 to 3/8 inch shallower than the
opener disks. In heavy residue or hard soils, the coulters
may need to run deeper.
Refer to Figure 4-8:
1.
To adjust the coulter vertically, loosen the 3/4" jam nut
(#1) and the 3/4" x 3" long hex bolt (#2).
2. By turning the cam hex (#3), rotate the cam casting to
set the desired height.
3. Tighten the bolt and jam nut. Refer to Torque Values
Chart for Common Bolt Sizes in “Appendix” on
page
63.
1 x 12 Closing Wheel Adjustments
The 1 X 12 closing wheel option can be adjusted for down
force, alignment, and offset.
Closing Wheel Down Force Adjustment
Adjust the closing wheel down force to permit proper clos-
ing of the seed trench. It is recommended to start with the
T-handle in the first of 4 notches, see Figure 4-9.
If the seed trench is not closing move the handle to the
next notch back and try again. Keep moving the handle
back until the seed trench is closing, by doing this elimi-
nates unnecessary down force and compaction. In some
field conditions, the T-handle can be left in the forward slot
to minimize down force.
Coulter Adjustment
Figure 4-8
15053
Closing Wheel Alignment
Refer to Figure 4-10:
If one closing wheel is running in the seed trench or the
wheels are not centered over the seed trench, adjust the
closing wheels as follows:
1. Raise the planter slightly to remove weight from the
closing wheels.
2. Loosen the two 1/2" bolts.
3. Turn the press wheel adjuster left or right to center the
wheels over the seed trench.
Tighten the 1/2" bolts to the correct torque values in the
Torque Values Chart for Common Bolt Sizes in “Appen-
dix” on page
63.
Closing Wheel Adjuster
Figure 4-9
12346
Closing Wheel Alignment
Figure 4-10
12418