Great Plains CP1000 Operator Manual - Manual (Page 23)

21
Section 3 Adjustments
7/5/2005 CP1000 Three-Meter Drill and Hitch 148-358M
Great Plains Mfg., Inc.
Disk Adjustments
Refer to Figure 3-9.
If mark left by marker disk is not easy to see, change disk
angle to make a wider mark. Loosen two 1/2-inch carriage
bolts (1) holding disk mount. Rotate disk mount as
desired.
If the marker disk is not square with the ground when the
marker is lowered in the field, or if marker arm tends to fold
up while lowered in the field, change disk angle relative to
ground. Loosen 1/2-inch bolts (2) and rotate marker
mount until marker disk is square with ground.
To adjust where the disk marks, loosen u-bolt (3) and slide
marker-mount tube in or out as necessary. Re-tighten u-
bolt.
Figure 3-9
Disk Angle
Pivot Lock Tube Adjustment
To adjust tension on pivot-lock tubes, loosen jam (1) nut
and screw bolt (2) in or out to desired setting and re-tight-
ening jam nut. When pivot frame is 90 degrees to tongue,
bolt head should be about 2 mm (1/16 inch) away from
stop on pivot frame (3).
Figure 3-10
Adjust Tension on Pivot-Lock Tube
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Seed-Lok Lock Up
Optional Seed-Lok firming wheels provide additional
seed-to-soil contact. The wheels are spring loaded and do
not require adjusting. In some wet and sticky conditions
the wheels may accumulate soil.
To lock up firming wheels, hook one end of chain in the
opener-body hole just above the wheel arm (1). Pull firm-
ing-wheel arm (2) up as high as possible and wrap chain
around arm. Hook other end of chain in a link. Leave no
slack in chain; secure wheel arm in its highest position.
Figure 3-11
Seed-Lok Lock Up
Setting the Seeding Rate
Calibrating the seeding rate requires four steps:
• set correct drive type,
• setting seed-rate handle,
• positioning seed-cup doors, and
• checking seeding rate.
Refer to the seed-rate charts starting on page 24. These
charts list proper sprocket sizes and seed-rate-handle set-
tings for various seeds and seeding rates.
The seed-rate charts are based on cleaned, untreated
seed of average size and test weight. The charts are
based on 13.0/55-16 12 PR AW tires. Many factors will
affect seeding rates including foreign material, seed treat-
ment, seed size, field conditions, tire pressure and test
weight. You likely will need to make minor adjustments.
Set and check the seeding rate using procedures below,
then readjust rate as necessary.
1
2
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