Great Plains YP2425A Operator Manual - Manual (Page 25)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 21
2014-02-10 Table of Contents Index 401-626M
Center Section Level Check
Vertical height and side-to-side level of the center section
is set at the factory and cannot be field-adjusted. It does
need 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 20
4.
Measure the elevation of both left and right sides of
the planter center section, at the ends of the center
section tool bar (location
in Figure 13).
Wing Leveling
Wing Leveling, Inboard End
Wing leveling check/adjustment is required prior to first
use of the YP2425A Planter, and periodically thereafter,
for example, if soil conditions change dramatically.
Before performing this operation:
• Check center section height and level (page 20).
• Row unit coulter/planting depths, and row unit
down-pressures must all be equal.
5. Measure the height of the inboard end of each wing,
near the wing flex pivot (location
in Figure 13).
6. Compare this height to that of the center section
obtained at step 4 on page 21.
7. If the heights differ by more than 1in, 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.
Wing Leveling, Outboard End
Refer to Figure 14 and Figure 15
1.
Measure from the bottom of the wing tool bar to the
ground at the outer end of each wing (location
in
Figure 14).
2. Compare to the measurement at the outer end of the
center tool bar, at the wing pivot location. All
measurements should be identical, and close to 26in
(66cm).
3. If measurements do not match, loosen upper gauge
wheel lock nut
, and adjust eyebolt link length with
adjuster nut .
4. If adjustments are needed on either side, re-check
the other side after each adjustment, and re-adjust it
as needed.
5. Once level, tighten the lock nut .
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.
1
Figure 14
Wing End Level Check
26118
3
2
Figure 15
Leveling Wing
26036
2
1
3
1
2
1