Blade Guide Bearings - Grizzly G0622 Owner's Manual

Blade Guide
Bearings
The blade guide bearings must be properly
adjusted to make square cuts. One bearing on
each assembly has an eccentric bushing that
allows it to be adjusted so the blade is square to
the vise. The bearings are secured in place by a
hex nut and lock washer, as shown in Figure 55.
Before adjusting the blade guide bearings, make
sure that you have squared the blade to the table
as discussed in the previous section.
Backing Bearing
Eccentric
Bushing
Figure 55. Blade guide adjustments.
-36-
To adjust the blade guide bearings:
1.
2.
3.
4.
5.
6.
Hex Nut
7.
DISCONNECT BANDSAW FROM POWER!
Position the vise to 90°, then lock it in place.
Put a machinist's square against the face of
the vise and move it over to the blade.
—The square should evenly touch both the
face of the vise and the blade. If it does,
skip ahead to Step 6.
—If the square does not evenly touch the
blade, but it does evenly touch the vise,
continue with the next step.
Loosen the hex nuts that secure the eccentric
bushings attached to the guide bearings.
Adjust the bearings as necessary to force the
blade to be 90° to the vise, then re-tighten the
hex nuts.
If any of the bearings are not touching the
blade evenly, loosen the hex nuts and adjust
them so the contact surface of the bearings
touch the blade evenly.
Note: Since the bearings twist the blade into
position, it is acceptable if there is 0.001"-
0.002" gap between the blade and the front
or back of the bearing. Just make sure not to
squeeze the blade too tightly with the bear-
ings. After the guide bearings are set, you
should be able to rotate the guide bearings
(although they will be stiff) with your fingers.
Adjust the backing bearing in the same man-
ner, but leave a gap between 0.002-0.003"
from the back of the blade.
Model G0622 (Mfd. Since 09/17)