Adjusting The Blade Guides And Back-Up Bearing - Craftsman 113.244580 Owner's Manual

Adjusting the Blade Guides and Back-Up
Bearing
I WARNING: Turn off saw, remove switch key and I
I
unplug before making any adjustments.
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NOTE: The upper and lower blade guides and back-up
bearings support the band saw blade during cutting oper-
ations. The adjustment of the guides and bearings should
be checked whenever a different blade is installed.
1. Adjust the position of the blade guide support hous-
ings. Loosen the upper blade guide support housing
cap screw using a 1/8 Hex "L" wrench.
2. Slide the upper blade guide support housing on the
shaft until the front edge of the blade guides are about
1/32" behind the gullet of the blade. Tighten the cap
screw.
3. Repeat for the lower blade guide support housing. (You
may need to adjust the blade tracking before making
this adjustment.)
NOTE; If the front face of the blade guides are not 1/32"
behind the gullet of the blade the blade teeth will hit the
blade guides and this will ruin the blade. Proper adjust-
ment of the upper and lower blade guide support hous-
ings will prevent this from happening.
3. Adjust the blade guides. Loosen the two cap screws
that lock the upper blade guides into the housing and
press the two guides evenly against the sides of the
blade but do not pinch the blade. Release the guides
and rotate the upper wheel slightly clockwise moving
the blade downward. Make sure one guide is not fur-
ther away from the blade than the other. Tighten both
cap screws.
4. Repeat on the lower blade guides.
NOTE; Ideally, the space between the blade and the
guides should be approximately the thickness of a dollar
bill. This will provide maximum blade support and control
during cutting operations
5. Adjust the upper and lower back-up bearings. Loosen
the back up bearing cap screw using a 1/8" Hex "L"
wrench.
6. Move the back-up bearings to within 1/32" or less of
the back edge of the blade.
NOTE: The back-up bearing is used to support the back
edge of the blade while cutting. The blade should just
barely contact the bearings when you stop cutting.
Upper
Back-u
Bearing
Upper Blade
Guide
Su
Housing
BI;
Lowe
Guide
Support Housin
Lower Back-u
Bearing
Upper
P
Bearing
Cap Screw
Guide
Support Housing
Cap Screw
I
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Upper
Bearing
Cap Screw
Blade
Guide Support
Housing
Cap Screw
Lower Blade Guide
Support Housing
CaD Screw
///./,@v/_ U
:r Back-Up
Bearing Cap Screw
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