Great Plains 2SBM30 Operator Manual - Manual (Page 21)

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19 5/3/05 Great Plains Mfg., Inc.
Section 6 Drill & Gauge Wheel Adjustments
2SBD30 30-Foot, Folding, Soybean Machine 173-086M
Transport Wheel Adjustments
When leveling your Bean Machine, planter parallel arms
near the center of the machine that are higher above lev-
el than desired can be adjusted by raising the transport
frame. This is done by slowly raising the machine until
level with the hydraulic lift cylinders. Planter parallel
arms near the center that are lower than desired are ad-
justed by lowering the transport frame by retracting the
cylinders. Once the parallel arms are at the desired set-
ting, screw the threaded adjustment studs on top of the
vertical tubes down as far as possible and secure them
with the jam nuts, Figure 5-1. This adjustment will stop
the lift cylinder travel at the same point each time the
boxes are lowered for planting and assures accurate
seed depth control.
Gauge Wheel Adjustments
The planter rows near the outside of the machine are ad-
justed by raising or lowering the gauge wheels.
Raise the machine out of the ground and loosen the jam
nut located near the bottom clevis of the gauge wheel
turnbuckle, Figure 6-1. This turnbuckle is threaded to al-
NOTE: If it is noticed that one box row’s parallel arms
are different from the other box at the center of your
machine is a sign that your lift hydraulic master and
slave cylinders are out of sequence with one another.
In order to get them back in sequence simply raise
your machine all the way up and hold your tractor hy-
draulic control valve lever on for a few seconds. Now
lower your machine and both cylinders will be in se-
quence with one another and your two boxes should
be at the same level again.
Gauge Wheel Turnbuckle
Figure 6-1
10546
low easy gauge wheel adjustment. By lengthening the
turnbuckle the gauge wheel is lowered, also lowering
parallel arms. By shortening the turnbuckle the gauge
wheel is raised, also raising parallel arms. After adjust-
ing, be sure the turnbuckle on both gauge wheel arms
have the same pin center dimensions.
Down Force Row
Standard Spring Package
The standard down force spring package, consists of 2
non-adjustable springs applying approximately
90 lbs. of down force.
Optional Medium and Heavy Duty Spring Package
The medium and heavy duty spring packages consist of
2 or 4 adjustable springs, respectively. The medium duty
package can be adjusted from approximately 100 to 200
lbs. down force. The heavy duty package can be adjust-
ed from approximately 200 to 400 lbs. of down force.
Spring Adjustments
•
All spring adjustments must be made with the ma-
chine in the fully raised position.
•
The spring package is adjustable from 90 lbs. to 325
lbs. of down force when the parallel arms are horizon-
tal. Consult the Down Force Pressure Chart on
page 20 to obtain the desired down force.
•
Two springs can be purchased at your Great Plains
Dealer to make the medium duty package into a heavy
duty package or two springs can be removed from the
heavy duty package to make a medium duty package.
Add or subtract springs by removing the snap ring at
the end of the spring pivot rod. Slide the rod inward to
add or remove a spring from each side. Then attach or
remove the other spring end on the hex bar support.
Reinstall the spring rod and snap ring on each side.
NOTE: The maximum down force stated before is
reached when the parallel arms are all the way up.
NOTE: The maximum down force stated before is
reached when the parallel arms are all the way up. To
adjust the spring tension, lift the plunger by pulling up
on the roll pin handle and sliding the handle adjustment
assembly into the appropriate hole, see Figure 6-2.
Section 6
Drill & Gauge Wheel Adjustments