-71-
Model W1849 (For Machines Mfd. Since 11/16)
SERVICE
4. Place coplanarity gauge up against both wheels in
positions shown in Figure 100. Make sure gauge fully
extends across rims of both wheels.
5. Check wheel alignment and adjust tracking knob
to bring both wheels into alignment as much as
possible. If wheels cannot be adjusted coplanar,
use Figure 101 to determine how to proceed with
alignment adjustments.
or
Wheels parallel
and aligned: No
adjustment
needed.
Wheels parallel, but
not coplanar with
each other: Shim
upper or lower wheel.
Upper wheel not
vertically aligned
with lower wheel:
Use blade tracking
knob to tilt upper
wheel.
Lower wheel not
laterally aligned
with upper wheel:
Adjust rear set
bolts to tilt lower
wheel left/right.
Coplanarity Gauge
WHEEL WHEEL
Figure 101. Wheel alignment illustration
with solutions to misalignment problems.
Coplanarity Gauge
Gauge Positions
Tracking
Knob
Adjustment
Hub
Wheels
Figure 100. Illustration of using
coplanarity gauge to check wheel
alignment.
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