GREAT PLAINS 606NT Manuale di istruzioni per l'installazione - Pagina 4
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Determine the new bar length required.
4) Loosen the clamp bolts (2) and use a mallet to adjust the
bar height. Once the desired height is achieved, re-tighten the
clamp bolts.
Coulter Down-Force Adjustment:
Coulter springs are preset at the factory giving the coulters an
initial operation force of 400+ lbs. This setting is adequate for
most field conditions. Re-setting the coulter spring shorten
than 9 3/4 inches can cause premature failure of parts.
Opener Down Pressure:
The "W" clips located on the opener spring rods should be in
the lowest hole. This is the correct location in all conditions.
The "W" clips can be raised one hole on openers behind wheel
tracks only if penetration is not adequate.
T-Handle Adjustment:
The depth of each opener is controlled by the height of the
press wheel. Varying the height of the press wheel changes
the seeding depth of the opener. Moving the "T" handle to the
front of the opener shallows the depth; moving the "T" handle
towards the rear of the opener increases the depth. For a start-
ing point, place the "T" handle in the center.
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