Great Plains PT1230 AA1080 Operator Manual - Manual (Page 35)

33
Section 3 Adjustments
4/12/05 PT1230 Pull-Type Folding Planter 401-069M-B
Great Plains Mfg., Inc.
Coulter Depth
Optional coulters allow row unit to penetrate tough ground
conditions. Adjust coulters to run at the same depth as the
opener disks.
1. To adjust coulter depth, loosen 3/4-inch jam nut (1)
and 3/4-by-3-inch hex bolt (2). See Figure 3-10.
2. By turning cam hex (3), rotate cam casting to the de-
sired height. Each notch represents about 1/4 inch of
depth.
3. Torque bolt and jam nut to values recommended on
Torque Values Chart, “Appendix,” page 62.
Figure 3-10
Row Unit Mounted Coulter
Opener Seeding Depth
Seeding depth is controlled by gauge wheels mounted on
the sides of the opener disks.
To adjust seeding depth:
1. Raise planter to remove weight from side gauge
wheels.
2. Raise and move T-handle shown in Figure 3-11.
• Move T-handle forward for deeper seeding depth.
• Move T-handle back for shallower seeding depth.
3. Move T-handles on all row units to the same location.
Figure 3-11
Opener Depth Adjustment
15053
12345
Side Gauge Wheels
The side gauge wheels have two, interrelated adjust-
ments:
• angle of side gauge wheel, and
• distance between side gauge wheel and opener disk.
Figure 3-12
Side Gauge Wheels
Adjust side-gauge-wheel angle so the wheels contact the
opener disks between 4 and 8 o’clock.
Figure 3-13
Wheel-to-Disk Contact Area
At the same time, keep the side gauge wheels close to the
opener disks so openers do not plug with soil or trash but
far enough out so the disks and wheels turn freely.
To adjust side gauge wheels:
1. Raise implement slightly to remove weight from side
gauge wheels.
2. Loosen hex-head bolt. Move wheel and arm out on o-
ring bushing. See Figure 3-14.
Side Gauge
Wheel
Side Gauge
Wheel
Opener
Disks
Incorrect Correct
17812
8:00 4:00