Wheel Alignment Cont.
6.If the wheels will go parallel but not copla- nar, then move the lower wheel at the adjustment hub (Figure 35) as necessary.
7.The adjustment hub allows you to move the lower wheel in the desired direction. Turning all the bolts clockwise in equal amounts pushes the wheel forward. Turning all the bolts counterclockwise brings the wheel backward, closer to the adjustment hub. Used individually, each bolt can control the direction that the wheel tilts.
8.Figure 36 shows the positions of the wheels when they are coplanar. When your wheels are coplanar, readjust the guide blocks and rear support bearings.
Note: The blade may track slightly off center when the wheels are coplanar. This is natural because the blade will be balanced on the crown of the tire, rather than just in the center of the tire. This will be more noticeable with larger blades.
Top Tilt
Side |
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Tilt |
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Side | ||
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| Tilt |
Bottom Tilt
Figure 35. Lower wheel adjustment control.
Figure 36. Coplanarity diagram.
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