CrustBuster 4600 Series, Operation Maintenance Manual & Parts List

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8
Field Operation
Recommended Operating Speed
Operating speeds of 4-7 mph will provide
optimum results from your All Plant drill. Con-
ventional field conditions can warrant speeds in
the upper end of the range. High levels of
"tough" residue due to morning dew or recent
moisture, rough field conditions, rocky fields, or
hard ground may require lower speeds for
adequate performance.
Recommended Adjustment Procedure
Setting your All Plant drill requires adjustments
be made in a particular order to ensure the
opener will work properly. You will find it much
easier to set the drill if adjustments are made in
the following order:
1. Level the drill
2. Set toolbar rotation
3. Set down pressure
4. Set seed depth
Leveling the Drill
It is important to level the drill from front to back
first. The tongue and box should be as close to
level as you can get it by changing the drawbar
height on the tractor (on offset drawbars), or by
repositioning the clevis or mono hitch mounting.
Any time a different tractor is hooked to the drill
you should recheck level.
Clevis
Positions
Toolbar Adjustment
After the drill is leveled, rotation of the toolbar
must be set. Using the screw adjustable stop
on the lift cylinder, adjust rotation of the toolbar
until the 2" x 4" tubing the openers are mounted
on is perpendicular to the ground. Adjustment
range of the presswheel depth quadrant will be
affected if the toolbar does not rotate far
enough or goes beyond perpendicular. If the
toolbar is not set correctly, the opener travel
range will not allow for penetration into low
areas or provide clearance when meeting
obstructions.
Setting Down Pressure
The parallel linkage opener design assures the
operator the opener blades and presswheel
operate on the same level throughout the range
of up and down travel. Due to the location of
the down pressure spring, the pressure applied
to the opener remains relatively constant in the
entire range of travel. Changing the spring
position from the first (top) notch to the last
(bottom) notch provides 4 different levels of
force. Each notch represents approximately
these amounts of down pressure:
Notch 1 (top) 140#
Notch 2 275#
Notch 3 400#
Notch 4 525#
It may be necessary to add ballast to the drill in
the third or fourth notch. In order that all the
opener springs are able to achieve the down
pressure selected, the total weight of the drill
must equal that amount of pressure times the
number of row units on the drill. The parallel
linkage arms should have a "live working ac-
tion" during field operation. Setting the drill for
too much down pressure without adequate
weight will reduce the ability of the opener to
flex and give good performance.