SETUP
53
SHEAR BAR DESIGN
Refer to FIGURE 63 for the following explanations.
The DION shear bar contains two notches on each side. Specially designed bolts (items 2) sit in these notches and
are used only to initially adjust the shear bar parallel to the knife drum.
The shear bar clearance adjustment bolt (item 3) guides the bar laterally. Tightening it pushes the bar along the
notched ramps, moving the bar towards the cutter head knives (see arrows).
The condition of the shear bar is just as important as the knife sharpness for a high-quality cut. This bar features
two cutting faces coated with tungsten. When the edge loses its sharpness on one side, it can be rotated around
to use the other edge. Tungsten edges are indicated by item 4.
NOTE: For daily adjustments, after sharpening the knives for example, only the side adjustment bolt (item 3) is used.
Do NOT use the other 2 bolts (items 2) to continually adjust the shear bar with respect to the cutter head.
Improper adjustment of items 2 will cause serious damage to the harvester.
Ensure the shear bar is always installed with the tungsten edges facing upwards.
Figure 63 Shear bar adjustment
WARNING: Stop the PTO and turn off the tractor engine before servicing the harvester.
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