Great Plains YP4425A Operator Manual - Manual (Page 110)

106 YP4425A Table of Contents Index Great Plains Manufacturing, Inc.
401-805M Table of Contents Index 2012-02-23
Wing Alignment
To check and adjust wing alignment:
1. Unfold planter. See “Unfolding the YP4425A
Planter” on page 23.
2. Set tongue height (page 20).
Lower planter. Pull forward.
Refer to Figure 127 and Figure 128
3.
Select a common reference point that is easy to
access at the wing-end and center section end row
units, such as the back of the press wheel
assembly
.
4. Check for proper alignment by running a string line
across back of planter toward outer ends of wings.
For proper alignment, outside ends of wings
should be 0-to-
1 ⁄
4
inch (0-to-6.4 mm) ahead of inside
ends of wings at center section .
5. To adjust wing alignment, shorten or lengthen eye
bolts
to change the length of the wing pull bar.
Adjust eye bolts in or out until dimension is
0-to-
1 ⁄
4
inch (0-to-6.4 mm) greater than
dimension .
6. Be sure both wings are adjusted equally or the
planter will tend to pull sideways behind the tractor.
Measure length of both pull bars, pin to pin, and set
the same.
Figure 127
Alignment Reference Point
29600
5
Figure 128
Wing Alignment
29270
8
7 6 6 7
8
5
6
7
8
6
7