Tensioning & Tracking Blade - Grizzly G0812 Owner's Manual

Note: It is sometimes possible to flip the
blade inside out, in which case the blade
will be installed in the wrong direction. After
installing, check to make sure the blade
teeth face the same direction as blade travel
(see Figure 28). Some blades will have a
directional arrow as a guide.
B l
a d
e T
r a
v e
l
Figure 28. Example of blade cutting direction.
8.
Use one hand to hold blade in place, then
work your way around the blade, making
adjustments so back of blade lightly touches
shoulder of wheels, as shown in Figure 29.
Blade
Wheel
Shoulder
Figure 29. Blade installed on wheels.
9. Complete blade change by using Tensioning
& Tracking Blade procedure that follows this
section.
10. Re-install wheel brush and blade guards,
then close and secure wheel cover. Ensure
guards do not touch blade.
11. Reposition left blade guide (refer to Blade
Guides on Page 37 for details).
12. Adjust blade tension to 25,000 to 30,000 PSI
(refer to next section for details).
Model G0812 (Mfd. Since 2/16)
Tensioning &
Tracking Blade
Proper blade tension is essential to long blade
life, straight cuts, and efficient cutting. The Model
G0812 features a blade tension indicator to assist
you with blade tensioning.
The three major signs of incorrect blade tension
are: 1) The blade stalls in the cut and slips on the
wheels, 2) the bandsaw does not make straight
cuts, and 3) the blade frequently breaks.
Loosen blade tension at the end of each day
to prolong blade life.
Tensioning Blade
Rotate blade tension handwheel (see Figure 30)
clockwise to tension blade and move tip of indica-
tor to correct PSI setting on graduated scale that
corresponds with blade type being used.
For bi-metal blades, like the one supplied with
your machine, set blade tension between 30,000
and 35,000 PSI (start low and adjust up from there
only as necessary for accurate cutting results).
For carbon blades, set blade tension at 20,000
PSI.
Blade Tension
Figure 30. Location of blade tension handwheel
and blade tension indicator.
Tension
Scale
Handwheel
-27-