2019-06-12
401-705M
YP3025A
Adjustments
62
Marker Adjustments
There are three adjustments and two maintenance items
for markers:
•
Disk Angle (following)
Even if your row spacing rarely changes, you may
need to adjust disk angle for soil conditions and
planting speed.
•
Shear Bolt Replacement (
If a marker hangs up on an obstruction, a bolt at the
fold is designed to fail.
•
Marker Cylinder Bleed (
If marker operation is irregular, check that system is
not contaminated with air.
•
Marker Extension (
Once set for a specific row spacing, this only needs
periodic checking to ensure the clamp is secure.
•
Marker Speed (
page 171). Once initially set by your dealer, this
rarely needs modification.
Marker Disk Adjustment
Sharp Object Hazard:
Use caution when making adjustments in this area. Marker
disks may be sharp.
1. To change angle of cut, and the width of the mark,
loosen
3
/
8
inch bolts holding the disk assembly.
For a wider mark , increase the angle of the
marker with respect to the tube . For a narrower
mark , reduce the angle.
Do not set a marker angle wider than need to make a
useful mark. Excess angle increases wear on all
marker components.
2. Tighten bolts .
The direction of travel tends to drive the disk angle
to Wide. If bolts are not tight enough, or loosen over
time, the disk will slip into the Wide mark
configuration.
Overhead Sudden Marker Movement Hazard:
You may be injured if hit by a folding or unfolding marker.
Markers may fall quickly and unexpectedly if the hydraulics
fail. Never allow anyone near the Planter when folding or
unfolding the markers.
Figure 66
Marker Disk Angle
11757
T
2
1
N
W
T
