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Omnis FT Owner’s Manual – Ver. 2.0 06/2020 65
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HO R SCH
Cutting Coulter
Operation
The cutting coulters may be operated in three different settings:
1.
Top
– the coulter blade is just even with the opener knife tip. This is the proper settings to run in
most field conditions. As wear occurs on the blade the coulter may be set into the middle setting.
2. Middle – as wear occurs on the coulter blade this setting is 1.5” lower.
3. Bottom – used when the coulter blade is nearing the end of its working life.
Adjustment
The cutting coulters are preassembled and adjusted from the factory. However, adjustment to spring
tension is available and may be necessary.
1. Set spring tension by adjusting the ¾” lock nut until the spring is compressed to a length of 8-3/4”.
This should be the minimum set pre-load for this spring. If the spring can be rotated on the push
rod by hand, it is too loose and must be tightened.
2. Tighten 3/4” lock nut if greater spring pre-load is required, depending on field conditions and
desired seed depth.
3. Inspect the spring for pre-load before each operation. Maximum spring pre-load is up to 1-1/4” of
thread exposed from the lock nut.
NOTE: Replace any damaged or broken springs or other components immediately. For a
complete list of serviceable items, see Omnis FT Parts Catalog, or your nearest
authorized HORSCH dealer.
Picture to right indicates an assembled coulter unit
with spring installed and pre-load set to the minimum
setting, (8-3/4”).
The ¾” lock nut is installed and tightened against the
outer coil spring keeper.