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#2. Wear On Both Sides Of Teeth
#3. Wear On One Side Of Teeth
#4. Chipped Or Broken Teeth
Probable Cause :
A. Broken, worn or missing back-up guides allowing
teeth to contact side guides.
B. Improper side guides for band width.
C. Backing the band out of an incomplete cut.
Probable Cause :
A. Worn wheel flange, allowing side of teeth to contact
wheel surface or improper tracking on flangeless
wheel.
B. Loose or improperly positioned side guides.
C. Blade not perpendicular to cut.
D. Blade rubbing against cut surface on return stroke
of machine head.
E. The teeth rubbing against a part of machine such as
chip brush assembly, guards, etc.
Probable Cause :
A. Improper break-in procedure.
B. Improper blade selection for application.
C. Handling damage due to improper opening of
folded band.
D. Improper positioning or clamping of material.
E. Excessive feeding rate or feed pressure.
F. Hitting hard spots or hard scale in material
9-7
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