Adjusting Support Bearings - Grizzly G0640X Owner's Manual

Adjusting Support
Bearings
NOTICE
Whenever changing a blade or adjusting ten-
sion and tracking, the upper and lower blade
support bearings and blade guide bearings
must be properly adjusted before cutting
operations.
The support bearings are positioned behind
the blade for support during cutting operations.
Proper adjustment of the support bearings is an
important part of making accurate cuts and also
keeps the blade teeth from coming in contact with
the guide bearings while cutting.
To adjust the support bearings:
1. Make sure the blade is tracking properly and
that it is correctly tensioned.
2.
DISCONNECT BANDSAW FROM POWER!
3. Familiarize yourself with the upper support
bearing controls shown in Figure 24.
Support
Bearing Cap
Screw
Figure 24. Upper support bearing controls.
G0640X 17" Wood/Metal Bandsaw
Guide Block
Assembly
Cap Screw
Guide Block
Adjustment
Shaft Cap Screw
4.
Check that the blade is approximately 90° to
the face of the support bearing as illustrated
in Figure 25 (it is not critical that it be pre-
cisely 90°—just make sure it is close.)
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Figure 25. Blade should be perpendicular (90°)
to the face of the support bearing.
—If the support bearing is 90° to the blade,
no adjustment to the guide block rotation is
necessary.
—If the support bearing is not 90° to the
blade, loosen the two guide block assem-
bly cap screws, rotate the blade guide
assembly side-to-side, until the blade is
90° the face of the support bearing as illus-
trated in Figure 25, then tighten the guide
block assembly cap screws and re-adjust
the blade guides.
5. Loosen the support bearing cap screw.
6. Place a 0.016" feeler gauge between the
support bearing and the blade, and position
the bearing 0.016" away from the back of the
blade as illustrated in Figure 26.
Figure 26. Blade should be aligned approxi-
mately 0.016" away from the bearing edge.
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0.016''
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