Blade Guide Bearings - Shop fox W1715 Owner's Manual

W1715 Owner's Manual (Mfg. Since 2/08)
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.50.
Before adjusting the blade guide bearings, make sure that
you have squared the blade to the table as discussed in
the previous section.
To.adjust.the.blade.guide.bearings,.do.these.steps:
1. DISCONNECT BANDSAW FROM POWER!
2. Position the vise to 90°, then lock it in place.
3. 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.
4. Loosen the hex nuts that secure the eccentric
bushings attached to the guide bearings.
5. Adjust the bearings as necessary to force the blade
to be 90° to the vise, then re-tighten the hex nuts.
6. 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 bearings. After the guide
bearings are set, you should be able to rotate the
guide bearings (although they will be stiff) with
your fingers.
7. Adjust the backing bearing in the same manner, but
leave a gap between 0.002-0.003" from the back of
the blade.
Backing Bearing
Eccentric Bushing
Figure.50. Blade guide adjustment
-33-
Hex
Nut
controls.