Woodstock W1673 - Manual (Page 23)

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.
22
Figure 35. Lower wheel adjustment control.
Wheel Alignment Cont.
Top Tilt
Side
Tilt
Bottom Tilt
Side
Tilt
Figure 36. Coplanarity diagram.