Great Plains YP1625A Operator Manual - Manual (Page 154)

150 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.
401-625M Table of Contents Index 2013-08-13
Marker Setup
Although markers are factory- or dealer-installed, they
are not precisely adjusted for your planter configuration.
Prior to first use, set the following:
• marker speed (page 56), and;
• marker extension (below).
You may also want to set/check:
• marker disk angle (page 56).
Marker Extension
Refer to Figure 160
Marker Extension is the distance from the mark in the
ground to the centerline (or furrow) of the end row unit
(whether that row is in use or not).
The tables on page 149 provide suggested initial values
for various standard and altered configurations. When
operating with rows locked up, measure to the outside
row whether in use or not. Extension values may be
different for left and right side, and may be different for
opposing passes (each pass in the opposite direction)
and concentric passes (each pass in the same direction).
The table only includes data for opposing passes.
Refer to Figure 161
To adjust marker extension:
1. Loosen nuts on U-bolts .
2. Move marker disc tube in or out to get the proper
adjustment.
3. To measure for marker width adjustment:
4. Lower planter in the field and drive forward a few
feet.
5. Measure from the centerline/furrow of the outside
active row to the mark in the ground made by marker
disc.
When correctly adjusted, there is a gap of one row space
between passes, as measure between center-lines of
outside active rows for single-row, or between
center-lines outside active twin row pairs.
1
Figure 160
Marker Extension
27451
Figure 161
Adjusting Marker Extension
18878
5
3
4
4 3
5