Great Plains NTA3010 Operator Manual - Manual (Page 23)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 19
2014-03-26 Table of Contents Index 160-219M-A
Level Frame Side to Side
All frame sections must be level to maintain even
seeding depth. Before using the implement in the field,
follow these steps to check or adjust level side-to-side.
Periodic frame-leveling adjustments should not be
necessary, but if you are having problems with uneven
depth, check drill levelness, and correct as necessary.
1. Check that the lift hydraulics are free of air and full of
oil. See “Bleeding Lift Hydraulics” on page 17.
2. Unfold and lower the implement. See “Implement
Unfold” on page 26. Make sure the lift cylinders are
fully retracted, then block up or otherwise support
the frame.
Refer to Figure 16
3.
Take a reference measurement by laying a straight
edge across the top of the two coulter mount
tubes
on the center section. Measure from the
bottom of the straight edge to the center of one
rockshaft-wheel axle. Because rockshaft gauge
wheels are not adjustable, all adjustments will be
made relative to this measurement.
Refer to Figure 16
4.
Move the straight edge to one of the wings. Measure
the distance from the bottom of the straight edge to
the center of wing-gauge-wheel axle.
If the wing measurement is the same as the reference
measurement, skip step 5 through step 9.
If the wing measurement differs from the reference
measurement:
5. Remove the pin from the rod end of the
wing-gauge-wheel cylinder.
6. Block or support the wing gauge wheels so the
distance from the bottom of the straight edge to the
center of the wing-gauge-wheel axle is the same as
the reference measurement taken in step 3.
Refer to Figure 16
7.
Loosen the nuts on the cylinder eye bolt.
8. Move the eye bolt in or out until the rod end of the
cylinder can be pinned to its lug.
9. Secure the eye bolt by tightening the nuts.
Repeat step 3 through step 9 as needed for the other
wing.
Figure 16
Leveling Reference
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1
1
Figure 17
Checking Wing Level
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Figure 18
Adjusting Wing Level
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