CONCORD NT30 Operator's Manual page 80

3. Operation
3.16.4 Opening disc offset
The opening disc offset is the amount of offset (A)
between the two opening discs (1) on each toolbar.
The opening disc offset prevents material from
accumulating between the two opening discs on
the opening disc assembly.
The opening disc offset is set at 114 mm (4.5 inch)
at the factory, but can be adjusted from 38 mm to
165 mm (1.5 to 6.5 inch).
Increase the opening disc offset for wet, sticky
soils.
Decrease the opening disc off set for dry, sandy
soils.
If operating in soil with large rocks, set the
opening disc offset to the maximum offset.
If the opening disc offset is too wide, there will not
be enough soil movement for sufficient trench
closure.
If the opening disc offset is too narrow, material will
build between the two opening discs.
Use the five sets of holes on one side (1) of the
opener mount to adjust one of the opening discs.
Use the two sets of holes on the opposite side (2)
to adjust the other opening disc offset . Each set of
holes will change the offset by 25 mm (1 inch)(A).
Opening disc offset table
The following table shows the opening disc offset
according to the position of the opening disc struts
(1) on the opening disc mount (2). The first column
shows the number of pairs of holes (3) forward of
the opening disc strut on the five position side of
the opener mount. The second column shows the
position of the opening disc strut on the two
position side of the opener mount, forward or rear.
The third column shows the opening disc offset.
Fig. 40
Fig. 41
Fig. 42
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Narrow-Transport Grain
Drill (322782B)