Adjusting Upper Blade Guides And Blade Support Bearing; Adjusting Lower Blade Guides And Blade Support Bearing - Craftsman 113.248340 Owner's Manual

Alignments and Adjustments (continued) _
Adjusting Upper Blade Guides and Blade
Support Bearing
WARNING: Blade guard has been removed for pic- I
lure clarity. Never operate the band saw without all
I
guards in place and in working order, Failure to
comply may cause serious injury.
1. Disconnect machine from the power source.
2. Blade must already be tensioned and tracking properly.
3. Loosen thumb screws and move guide blocks as close
to the blade as possible without pinching it. The thick-
ness of a dollar bill on each side of blade is a good rule
of thumb.
4. Tighten thumb screws.
5. Loosen thumb screw and turn knurled knob to move the
guide block bracket in or out until the front edge of the
guide blocksare just behindthe "gullets" of the saw teeth.
6. Tighten thumb screw.
7. Loosen thumb screw and turn knurled knob to move
the support bearing in or out until the bearing is !/64"
behind the blade.
8. Tighten thumb screw.
9, Blade support bearing should be adjusted so that the
back edge of the blade overlaps the front face of the
ball bearing approximately 1/8". To change position of
the bearing, remove screw bearing, and back of!
knurled knob completely to remove the bearing shaft.
Notice the bearing holder on the shaft is eccentric. Re-
install the bearing shaft, the bearing, and the screw.
Examine the overlap between the bearing face and the
blade. Change the position of the bearing shaft until
the overlap is approximately 1/8"
Adjusting Lower Blade Guides and Blade
Support Bearing
1. Disconnect machine from the power source.
2. Blade must already be tensioned and tracking properly.
3. Loosen thumb screws and move guide blocks as close
to blade as possible without pinching it. The thickness
of a dollar bill on each side of blade is a good rule of
thumb.
4. Tighten thumb screw,
5. Loosen thumb screw and move the guide block sup-
port in or out until the front edge of the guide blocks
are just behind the "gullets" of the saw teeth.
6 Tighten thumb screvy,
7. Loosen thumb screw and move the support bearing in
or out until it is 1/64" behind the sawblade
8. Tighten thumb screw.
9. The blade support bearing should be adjusted so that
the back edge of the blade overlaps the front face of
the ball bearing approximately 1/8". To change position
of the bearing, remove screw and bearing. Loosen
thumb screw and remove the bearing shaft. Notice the
bearing holder on the shaft is eccentric. Re-install the
bearing shaft, the bearing, and the screw. Examine the
overlap between the bearing face and the blade.
Change the position of the bearing shaft until the over-
lap is approximately 1/8".
Step 3
Suppport
Shaft
_Blade
Step 9 (upper and lower)
7
Step 5
18