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Problem
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Possible Cause
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Saw blade keeps breaking
prematurely
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a. Blade tension too high
b. Guides tight or
maladjusted
c. Speed too low for feed
rate
d. Speed too high
e. Cracking at the weld
f. Blade too thick for
wheel diameter
g. Pitch too coarse
|
a. Reduce tension
b. Alter adjustment
c. Increase speed or
decrease feed
d. Reduce speed
e. Check welding
technique
f. Use lighter gauge
g. Use finer pitch
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Blade starts to camber and
cuts to one side - running out of square
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a. Saw guides too far
apart
b. Feed pressure too high
c. Roller guides not
adjusted
d. Band pitch too fine
e. Set removed by guides
f. Blade riding on wheel
flange
g. Hard inclusion in
material
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a. Adjust closer to
material
b. Reduce pressure
c. Adjust correctly
d. Use coarser pitch
e. Adjust or chamfer
guides
f. Adjust wheel tracking
g. Reduce cutting rate
|
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Vibration whilst cutting
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a. Work piece not
securely held
b. Incorrect feed
pressure
c. Not enough blade
tension
d. Wrong speed for
thickness
e. Pitch too coarse
f. Wrong tooth form
|
a. Improve clamping
b. Adjust
c. Increase tension
d. Adjust
e. Use finer pitch
f. Use variable pitch
|
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a. New blade not 'run in'
b. Feed rate too light
c. Speed too high
d. Pitch too coarse
e. Coolant not directed
f. Saw idling through
cut
g. Incorrect saw guides
for width
h. Teeth running in wrong
direction
i. Wrong blade quality
|
a. See Bernards FAQ page
b. Increase rate
c. Reduce speed
d. Use finer pitch
e. Direct at point of cut
f. Keep teeth engaged
g. Use correct guides
h. Refit blade correctly
i. Try different type
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Blade twisting
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a. Saw guide arms too far
apart
b. Blade binding in cut
c. Not enough blade
tension
d. Blade too wide for
radius
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a. Adjust correctly
b. Reduce feed rate
c. Increase tension
d. Use narrower blade
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