Great Plains YP4025A Operator Manual - Manual (Page 117)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 113
2013-04-24 Table of Contents Index 401-627M
Wing Alignment
To check and adjust wing alignment:
1. Unfold planter. See “Unfolding the YP4025A
Planter” on page 25.
2. Set tongue height (page 22).
Lower planter. Pull forward.
Refer to Figure 139 and Figure 140
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
. On a twin-row planter, align using only
the rear units.
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
in (0-to-6mm) 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
in (6.4mm) 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 139
Alignment Reference Point
29600
5
Figure 140
Wing Alignment
29270
8
7 6 6 7
8
5
6
7
8
6
7