Great Plains YP4025A Operator Manual - Manual (Page 115)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 111
2013-04-24 Table of Contents Index 401-627M
Wing Leveling
Center Section Level Check
Vertical height and side-to-side level of the center section
cannot be adjusted, but needs to be verified before
checking/adjusting the wings. Soil accumulation on the
wheels, for example, can cause the center section to tilt.
Refer to Figure 13 on page 111 (which depicts planter on a
paved surface - actual measurement must be with rows pulled
forward in soil)
1.
Measure the elevation of both left and right sides of
the planter center section, at the ends of the center
section tool bar.
Wing Leveling
Wing leveling check/adjustment is required prior to first
use of the YP4025A planter, and periodically thereafter,
for example, if soil conditions change dramatically.
Refer to Figure 136 (which depicts planter on a paved surface
- actual measurement must be with rows pulled forward in
soil)
2.
Measure the outside ends of each wing section. This
should be the same as measured at step 1 above.
See page 111 for adjustments.
Wing Leveling, Inboard End
Wing leveling check/adjustment is required prior to first
use of the YP4025A Planter, and periodically thereafter,
for example, if soil conditions change dramatically.
Before performing this operation:
• Lower unfolded planter in soil. Pull forward until gauge
and caster wheels are in normal planting position.
• Row unit coulter/planting depths, and row unit
down-pressures must all be equal.
• Check center section height and level (page 22).
Refer to Figure 137
1.
Measure the height of the inboard end of each wing,
directly under the wing flex pivot.
2. Compare this height to that of the center section
obtained at step 1 on page 111.
3. If the heights differ by more than 1in (2.5cm), check
them again after leveling the wing ends. If they still
differ, the thrust washers in the wing pivots may be
worn and in need of replacement.
Note: Any unevenness in ground that tilts the wings or
center section causes the inner wing ends to move
up or down slightly with respect to the center frame.
Figure 136
Wing Level Check
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Figure 137
Wing Level Check, Inboard
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