
3P1006NT
Operation
Great Plains | 151-144U | 2019/03/14
25
Opener Down Pressure
Opener springs provide the down pressure
necessary for opener disks to open a seed trench.
The springs allow the openers to float down into
depressions and up over obstructions.
In most soil conditions, the factory spring setting is
sufficient to make a consistent furrow. In extremely
heavy soil conditions, with the coulters running at the
desired depth, the openers may be making a furrow
of inconsistent depth. Rather than increase the
coulter depth, you can increase opener down force at
the row unit springs.
The W-clip (1) should be in the lowest hole, which is
the correct location for all conditions. The W-clip can
be raised on openers behind wheel tracks only if
penetration is not adequate.
To adjust the pressure, remove W-clip. Place the
W-clip in a higher hole in the spring rod for more
pressure or in a lower hole for less pressure.
Machine Damage Risk
Use this adjustment only for a few rows,
typically in tire tracks. Do not set row force
higher on all rows. Instead, use coulter
adjustments and frame weight adjustments.
Check the drill level after adjusting the row force.
Disk Scraper Adjustment
To keep opener disks turning freely, scrapers are
mounted between the disks to clean as the disks
rotate.
As field conditions vary, scrapers may need to be
adjusted. In damp conditions, scrapers may need to
be lowered. If openers are not turning freely, scrapers
may need to be raised.
To adjust a scraper, loosen the 3/8 inch bolt (1) and
move the scraper as needed.
The standard scraper is shown below. Optional
spring-loaded carbide scrapers are available. They
require no adjustment.
Opener Depth
A press wheel attached to each opener body controls
seeding depth. To maintain consistent depth, the
relationship between the bottom of the opener disks
and press wheel is fixed by an adjustable stop on
each opener.
The press wheels also close the seed trench and
gently press soil over seed. To provide consistent soil
firming, press wheels are free to move down from
normal operating position. This maintains pressing
action even if opener disks encounter obstructions or
hard soil.
Set opener seeding depth by adjusting the
press-wheel height (1). To adjust, first raise the drill
slightly, then lift and slide T-handles on top of
openers.
In no-till conditions, use the T-handle to set opener
depth near, and at any level above coulter depth.
In soft or conventionally tilled soil, the opener disk
depth is more independent of the coulters.
W-Clip Hole
Row Down Force Added
Highest
+27 kg
Middle
+14 kg
Lowest
Factory Setting
1
12103
1
12102
Maximum pressure
Minimum pressure
!
1
18647
Содержание 3P1006NT-1575
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