GREAT PLAINS 1006NT Manuale di istruzioni - Pagina 5
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8.) With the drill in the raised position, the clutch should be fully disengaged. The cam
plates will be on top of each other, and the jaws of the clutch will be fully separated.
When the drill is lowered to planting position, the jaws of clutch should be fully
engaged. To adjust, loosen bolts on clutch tab, slide tab forward or rearward to
change and retighten bolts.
1.) SET COULTER DEPTH: With the drill lowered, pull ahead at field speed until
desired coulter depth is achieved. Once satisfied, set the cylinder stop on the master
cylinder (the cylinder on the left side of drill). Re-check the coulter depth and adjust
if needed. By doing this the coulter depth will always return to the same depth.
A. If the cylinders are completely retracted and the coulters are not penetrating,
add weight to the drill. DO NOT re-adjust the coulter shanks, as lowering the
coulter shanks will not increase coulter penetration.
B. Coulter springs are preset at the factory giving the coulters an initial operating
force of 400+ lbs. This setting is adequate for most field conditions. Re-
setting the coulter spring shorter than 9¾ inches can cause premature failure of
parts.