8/2/18
196-126M
2N-2410 & 2N-3010
30
Adjustments
No-Till Seeding
To get full performance from your no-till drill, you need a
good understanding of coulter, opener and press wheel
operation.
Coulters. A no-till coulter is mounted independently and
directly ahead of each opener. The coulters cut through
heavy trash and make a groove in the soil. The coulters
are mounted directly on the box frame. Consequently,
the cutting depth of all coulters changes as the drill is
raised and lowered. The cutting depth of the coulters is
controlled by an adjustable hydraulic depth stop.
Coulters that run directly in tire tracks can be lowered
individually. Refer to
Coulter Adjustments
, this page, for
information on how to make these adjustments.
Openers.
Each opener is mounted on the drill with
parallel arms. This parallel-action mounting allows the
opener to move up and down while staying in-line with a
coulter. Opener double disks widen the coulter groove,
making a seed bed. A seed tube mounted between the
disks delivers seed to the trench.The down force needed
to cut and widen the coulter groove is supplied by two
springs nested in the parallel linkage. Adjusting these
springs changes opener down-force. Refer to
Opener
Down-Pressure Adjustment
, page 36, for information on
how to make this adjustment.
Press Wheels. Attached to the rear of each opener is
one of several press-wheel options. The press wheels
provide two important functions.
First, the press wheels close the furrow, gently pressing
the soil over the seed. To provide consistent seed
firming, the press wheels are free to move downward
from their normal operating position. This system
maintains pressing action even if the opener arm is lifted
when the disks encounter obstructions.
Second, the press wheels provide opener depth control.
The higher the press wheels run relative to the double
disks, the deeper seed will be placed. To maintain a
consistent depth, upward press-wheel movement is
restricted by an independently adjustable stop on each
opener. Refer to
Press Wheel Adjustment,
information on how to make this adjustment.
Coulter Adjustments
The drill is assembled so that when the coulters are at
two inches deep, the seeding depth is about one inch.
This is a good baseline setting for most seeding
operations. As field conditions warrant, you can change
settings on the entire drill or individual coulters.
