59
Checking the Drive Wheel to Idler Wheel Alignment
Note:
Having the head frame as level as possible before conducting this check will greatly improve the
accuracy of the check and any needed adjustments.
Power down the mill and lock-out / tag-out main electrical panel.
Open the left and right cowling doors.
Install a new blade centered on each wheel. Do not rotate the wheels after the new blade
has been properly centered (this prevents the blade from tracking off center).
Ensure the new blade is tensioned properly, (see
page 41
) for more information.
Using a quality magnetic level or an 8” - 12" bubble level, follow the steps outlined
below.
If the three readings are not the same, rotate the idler and pull wheels clockwise and
evaluate the tracking in the reverse effect. This will indicate if the alignment is proper. If
it is not, go to”
tracking the blade”
(
pages 42-43
) section for adjustment instructions.
Figure 48
Figure 48B
Figure 48A
Step 1: Take
reading on
horizontal plane of
the head frame
Step 2: Take
reading on vertical
plane of the idler
wheel
Step 3: Take
reading on vertical
plane of the pull
wheel
