Great Plains AS20 Operator Manual - Manual (Page 24)

AS15 and AS20 Planting System 148-153M 4/14/05 22 Great Plains Mfg., Inc.
Section 4 Hitch, Drill, & Planter Adjustments For No-Till Planting Conditions
4. For extremely hard soil conditions, where 2000
pounds on the transport frame weight brackets does
not achieve the required coulter penetration, a tool
bar weight bracket kit (see the "Options" Section on
page 30 for ordering these kits) is available. Each
weight bracket kit contains two weight brackets
which will bolt above the ends of the coulter tool bar.
An equal amount of weight should be added on each
end of the coulter tool bar. With the transport frame
weight brackets weighted to the maximum recom-
mendations, or with the use of liquid fertilizer, a max-
imum total of 2400 pounds can be added to the tool
bar weight brackets. (1200 pounds per weight brack-
et).
!
CAUTION!
If the tool bar weight brackets contain the maximum recom-
mended weight, the All Seeds Hitch should NOT be transport-
ed full of liquid fertilizer.
5. In some extremely hard soil conditions, 20' coulter
tool bars may tend to have some upward flex, which
would affect the coulter penetration out on the ends
of the coulter tool bars. For these conditions, a
coulter tool bar brace kit (GP part no. 149-188A) is
available. This kit contains braces which support the
ends of 20' coulter tool bars to keep the coulter tool
bars rigid. A coulter tool bar brace kit is not needed
and will not fit if tool bar weight brackets are used on
the ends of the coulter tool bars.
6. The individual coulters on the All Seeds Hitch are
designed for quick, easy vertical adjustment.
Coulters which track in tire tracks or which see more
use as zone tillage coulters for planter row units may
require downward adjustment to compensate for ad-
ditional wear. Each coulter has a depth indicator
cam which pivots on the coulter spring bar and rests
against the top of the coulter clamp. The cams are
lettered A through D or A through G with each letter
indicating an additional 1/2" of coulter depth.
To adjust an individual coulter:
1. Loosen the 5/8" jam nuts on the 5/8" square
head set screws, and then loosen the set
screws.
2. Raise the coulter slightly and rotate the depth
cam to desired setting and allow the cam to rest
against the top of the coulter clamp.
3. Tighten the set screw on the side of the coulter
clamp first. This squares the coulter bar in the
clamp.
4. Tighten the set screw on the front of the coulter
clamp and then tighten both 5/8" jam nuts on
each set screw.
Planter & Coulter Adjustments
Down Floating Gauge Wheels
When using a 3-point mounted planter on an All Seeds
No-Till Hitch, the planter should be equipped with down-
ward floating gauge wheels. Downward Float on the
gauge wheels is necessary to maintain a constant unin-
terrupted drive wheel rotation in no-till conditions.
Current Great Plains Planters have spring loaded down
floating gauge wheels as standard equipment.
Planter Adjustments
1.
Lower the All Seeds Hitch and completely retract the
transport lift cylinders. Set the front tongue cylinder
so the zone till and fertilizer coulters are at the de-
sired depth. Note the setting on the cylinder depth
gauge so that you can return to the same depth after
lifting the planter.
2. Set the planter gauge wheels to maintain a frame
height of 21" from the bottom of the main frame to
the ground. Maintaining the proper frame height
sets the planter row units into the best position for
following uneven terrain while maintaining proper
seed placement.
3. Level the planter frame with the level link adjustment
trunnion or top link adjustment trunnion. A level
planter is essential for proper depth control and
seed placement.
4. Set the depth of each individual row unit by adjusting
the position of the side depth gauge wheels with the
sliding tee handle. With the depth set, adjust the
pressure on the furrow closing wheels to match your
soil conditions. It is also important to maintain the
proper depth on the row mounted coulter to provide
a tilled path for the planter row unit to follow. Set the
row mounted coulter at or 1/4" above the level of the
double disk openers. Refer to your planter operators
manual for additional and more specific planter ad-
justments.
Coulter Adjustments
The coulters on the All Seeds Hitch are designed with
the versatility to be used with either a drill or a planter for
no-till seeding. They are adjustable both vertically and
horizontally to band liquid fertilizer and to provide zone
tillage for no till planter row units.
The coulters on the All Seeds Hitch are set at the factory
to track 3 3/4" on either side of a planter row unit. This
provides a tilled zone in front of each no-till planter row
unit and allows you to band liquid fertilizer 3 3/4" off the
planter row with no lateral adjustment of the coulters
NOTE: Torque 5/8" set screws 85-100 ft-lbs to
obtain adequate holding force.