Great Plains CTA4000 HD Operator Manual - Manual (Page 43)

Great Plains Manufacturing, Inc. Adjustments 39
2012-11-28 160-037M
Frame Level
Other than “Eyebolt Adjustment” on page 26, there is
no specific setup adjustment for leveling the wings to the
center section. When beginning planting, check frame
level with row units in level ground.
If one or both wings are angled up or down, check and
adjust the following items:
• opener sub-frame adjustment: all gauge wheel
trunnions in same frame pivot holes - see
“Opener-Subframe Adjustment” on page 45
• weight transfer setting - see “Adjusting Weight
Transfer” on page 42
• opener pivot height: all openers pivoting in same hole
at their mounts (possibly excepting rows in tire tracks)
- see page 47
• opener press wheel height: all row units set the same -
see page 50
• opener spring down-force: all row units set the same
(possibly excepting rows in tire tracks) - see page 47
Implement Lift Switch Adjustment
The type, location and operation of this switch depend on
the air cart model.
Lift Switch with ADC2350 Cart
Refer to Figure 49 (which, for clarity, depicts the switch
region without openers or gauge wheel)
An implement lift switch on the implement turns seed
metering off when the implement is raised. To adjust the
height at which seed metering is turned off, follow these
steps:
1. Do not place any part of body under implement while
making adjustments.
2. Locate the implement lift switch on the front center
of the mainframe.
3. Raise openers completely and lock them up by
setting Transport/Field valve handle to TRANS.
4. Loosen switch mount bolts and slide switch up or
down until actuator makes contact with the lift
arm and switch is reliably toggled on (up).
5. Tighten bolts.
Note: Do not set the switch to come on too low. The lift
arm can ride up and down over irregular ground,
and an early switch could result in patches of no
seeding.
If opener eyebolt adjustment is changed (see page 26),
re-check implement height switch.
Note: For reference, the ADC2350 lift switch wiring is:
Black (switch COM) to black (extension)
Red (switch N.C.) to red (extension)
Green (switch N.O.) not connected
Circuit open when drill is raised.
Figure 49
ADC2350 Implement Lift Switch
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