Section 3: Adjustments
DH1048, DH1060, DH1560, DH1572, DH1590, DH2572 & DH2596 Disc Harrows 322-013M
12/7/18
15
Disc Gang Lateral Adjustment
Additional adjustments can be made by loosening
u-bolts (#1) and sliding disc gangs in or out to desired
position.
Disc Adjustments
Figure 3-2
Front Disc Gangs on DH10 Series
The recommended position for the front disc gangs (at
ground contact point) is 8 1/4" between inside gang disc
blades and equally spaced on either side of center frame
tube. Tighten u-bolts after adjustment.
Front Disc Gangs on DH15 Series
The recommended position for the front disc gangs (at
ground contact point) is 7 1/2" between inside gang disc
blades and equally spaced on either side of center frame
tube. Tighten u-bolts after adjustment.
Front Disc Gangs on DH25 Series
The recommended position for the front disc gangs (at
ground contact point) is 9 1/2" between inside gang disc
blades and equally spaced on either side of center frame
tube. Tighten u-bolts after adjustment.
Rear Disc Gangs on DH10 Series
The recommended position for the rear disc gangs (at
ground contact point) is 17 1/4" between inside disc
blades and equally spaced on either side of center frame
tube. Tighten u-bolts after adjustment.
NOTE:
The rear discs should be centered between
the front discs for optimum performance.
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Rear Disc Gangs on DH15 Series
The recommended position for the rear disc gangs (at
ground contact point) is 15" between inside disc blades
and equally spaced on either side of center frame tube.
Tighten u-bolts after adjustment.
Rear Disc Gangs on DH25 Series
The recommended position for the rear disc gangs (at
ground contact point) is 17" between inside disc blades
and equally spaced on either side of center frame tube.
Tighten u-bolts after adjustment.
Disc Leveling Front To Rear
The truest way to level your disc from front to rear is to
observe behind the center of the Disc Harrow. In most
soil conditions, a slight ridge in the center is actually a
level operation. More air pockets will form where soil is
thrown against each other, causing a small ridge to from
that will disappear after a soaking rain.
1.
If unit is leaving a significant ridge in the center,
raise disc rear gangs by shortening the center
3-Point link.
2. If unit is leaving a furrow (valley) in the center, lower
rear disc gangs by lengthening the center 3-Point
link.
3. See also Section 8: Troubleshooting for helpful
solutions to leveling the Disc Harrow.
Disc Blade Replacement
When replacing notched disc blades, assemble disc
blades in a spiral pattern.
Disc Replacement (Spiral)
Figure 3-3
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