Blade Breakage - Grizzly G0812 Owner's Manual

Tracking Blade
The blade tracking has been properly set at
the factory. The tracking will rarely need to be
adjusted if the bandsaw is used and maintained
properly. The blade is tracking properly when the
back of the blade lightly touches the shoulder of
both wheels during operation (see Figure 31).
Tip: One way to gauge whether the blade is
tracking properly is to DISCONNECT MACHINE
FROM POWER and slide the end of a fingernail
between the end of the blade and the shoulder,
with the machine. If there is just enough space to
do that, the blade tracking is properly set.
Blade
Figure 31. Location of wheel shoulder.
To adjust blade tracking, rotate tracking cap screw
in Figure 32 until the blade is tracking properly.
Tracking Cap
Screw
Figure 32. Location of blade tracking cap screw.
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Many conditions may cause a bandsaw blade to
break. Some of these conditions are unavoidable
and are the natural result of the stresses placed
on the bandsaw; other causes of blade breakage
are avoidable.
The most common causes of avoidable blade
breakage are:
• Faulty alignment or adjustment of the blade
guides.
• Feeding blade through the workpiece too
Wheel
fast.
Shoulder
• Dull or damaged teeth.
• Improperly-tensioned blade.
• Left blade guide assembly set too high above
the workpiece. Adjust left blade guide assem-
bly as close to workpiece as possible.
• Using a blade with a lumpy or improperly fin-
ished braze or weld.
• Continuously running the bandsaw when not
in use.
• Leaving the blade tensioned when not in use.
• Using the wrong blade pitch (TPI) for the
workpiece thickness. The general rule of
thumb is to have no fewer than three teeth
in contact with the workpiece when starting a
cut and at all times during cutting.

Blade Breakage

Model G0812 (Mfd. Since 2/16)