Grizzly G1011Z - Manual (Page 12)

G1011 7" x 12'' Bandsaw -11-
Tension/Tracking If the tension seems correct, make the other
adjustments to the saw (aligning guides, tracking
and speed) and test run it on a scrap piece of
material. If the blade is not cutting properly, the
tension may be incorrect and you’ll need to read-
just the tension. Remember to reduce the blade
tension when the saw will not be in use, this will
help to prevent premature wear or breakage of
the blade.
TRACKING
To adjust tracking, disconnect the bandsaw from
the power source. Raise the saw bow as high
as possible and remove the cap screw from the
hinged wheel cover. This will allow you to see the
bandsaw wheel which has a machined step and
a groove on it.
The socket head cap screw and lock nut on the
top of the saw bow changes the plane of rotation
of this wheel. Turn the wheel by hand (remove
the belt guard and turn the motor pulley) for a
few revolutions and observe whether the edge of
the blade stays snug against the machined step.
If it does not, adjust the cap screw until the blade
stays against that step through several complete
revolutions of the blade.
Once it stays centered when rotated by hand,
lock the cap screw in place with the locking nut.
Reconnect the machine to power and turn the
machine on for just a few seconds. Observe the
action of the blade and the wheel during this test,
being sure to maintain a safe distance should
the blade become disengaged. If the blade stays
snug to the step, close the cover and secure with
the cap screw.
Proper blade tension and tracking are important
for optimum bandsaw performance.
See Figure
4 for bandsaw tension and tracking control loca-
tions.
Figure 4. Tension and tracking controls.
TENSION
Since a number of blade metal types and tooth
configurations will work in this saw, proper blade
tension is dependent upon the type of blade and
the material to be cut. Too much tension will
result in blade breakage. A properly tensioned
blade will track the cutting line accurately and the
cut will be smoother.
Initially proper blade tension can best be achieved
by determining the amount of blade deflection:
1. Ensure that the power is off and the saw is
unplugged. Slide the blade guide assembly
all the way to the left so the blade is fully
exposed.
2. Press, with moderate pressure, on the face
of the blade with your thumb.
3. Turn the tensioning knob at the top of the
machine to change the amount of tension.
The blade should flex no more than
1 /
4
".
The saw blade is dangerously sharp. Use
extra care when handling the blade, or work-
ing near it. Serious injury is possible.
Tension Control
Tracking Control