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INDEX
Adjusting the Blade Leveler
Without the Blade Leveler, it is inherent that the left rear
corner blade of the machine would leave a small divot
because there is not any dirt flow to fill the void left by the
left rear blade. The "Blade Leveler" re-directs soil from a
single twenty-four inch cover disc blade. It redirects soil
into the area mentioned above. The Blade Leveler is
adjustable in height, in angle, as well as laterally.
The performance of the blade leveler is a function of both
speed and field conditions (loose dirt present.)
•
It is best to initially adjust the Blade Leveler to ride at
ground level, with the bottom edge parallel to the
ground. If it is set to high the loose dirt will escape
underneath the blade and not be delivered to where
it is needed.
•
If the ground speed will be ten miles per hour or
more, gap the Blade Leveler laterally a bit further left
of the left end cap of the left rear gang for most
working conditions. For most working conditions, it is
most effective when positioned approximately 1" to
1-1/2" to the left of the left rear gangbars left side end
cap.
See Figure 4-2.
END OF GANGBAR
Figure 4-2: Adjusting the Blade Leveler
F-1127-0622
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Operating Speed
The operating speed is very significant to the performance
of the HSL. It requires some speed to make it work
correctly and efficiently.
•
The minimum operating speed should be
approximately 7-1/2 to 8 miles per hour unless the
goal is to minimize the percent of crop residue being
buried.
•
Maximum operating speed recommended is
approximately 12 miles per hour.
The amount of crop residue that is buried is a function of
the operating speed.
•
The higher the speed of operation of the HSL, the
greater the percent of crop residue that will be buried.
•
The slower the speed of operation of the HSL, the
greater the percentage of crop residue left on the
surface.
When operating the HSL, higher speed can be a
substitute for operating deeper. On the other hand, in
some cases, it is desirable to reduce the percentage of
crop residue buried. In such cases the operator will need
to reduce the speed of operation. Typically the 8 to 10
miles per hour window of operating speed will yield the
most desirable results.
TYPICAL
Field Operation, 3-PT Hitch
SPACING
1"
1. The tractor must hold the 7812 HSL Front Gang from
going too deep. The Top Link of the 3-PT Hitch
controls the depth of the Rear Gang relative to the
Front Gang.
2. Lower the 7812 HSL to the ground and pull it a few
feet at the approximate desired depth.
3. Check for front-to-rear operating depth. Adjusting the
3-PT Hitch Top Link Mounting Point until the front and
rear operating depths are similar and the 7812-13
tracks straight.
a. Set disc depth by adjusting the max depth stop on
the 3-Point Control in the tractor.
b. Lock Locknut on Ratchet Top Link to secure it to
the adjusted length.
c. Tighten all hardware to the recommended
torques.
(rev. 4/97)," on page 2-2.
4. Always lift the HSL completely out of the ground
before turning to prevent disc damage or damage to
their respective mounting brackets.
5. Reduce speed at field ends, raise the HSL out of the
ground.
6. After a few hours of initial operation, check all
hardware for tightness. Tighten any loose hardware.
See "General Torque Specifications
4-3
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