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Trouble Probable Cause Remedy
Cracks on back edge
of blade.
Workpiece being fed too quickly.
Reduce feed speed to lessen strain on
the blade.
Welding on blade not perfectly aligned.
Eliminate the welded part, and re-weld
properly; or acquire a new blade.
Support bearing is worn; caused by
constant contact with back of blade.
Replace support bearing. Adjust new
bearing according to instructions (see
pages 18 and 19).
Blade breaks
prematurely.
Feed force too great. Reduce feed force.
Blade pitch too coarse.
Refer to blade selection chart; use finer
pitch blade (see page 28).
Support bearing not properly supporting
blade.
Check support bearing for correct
position and signs of wear. Adjust or
replace as needed.
Blade tensioned too tightly. Reduce tension (see page 16).
Blade breaks close to
weld.
Blade overheated during welding.
Have blade annealed, or eliminate
brittle part and weld correctly.
Blade cooled too rapidly after welding.
Have blade annealed, or eliminate
brittle part and weld correctly.
Premature dulling of
saw teeth.
Blade “pitch” too fine.
Refer to blade selection chart (page
28). Use blade with coarser pitch.
Feed pressure too light. Increase feed pressure.
Cutting rate too low. Increase feed pressure and cutting rate.
Incorrect choice of blade.
Re-examine material. Select proper
blade from the chart (page 28).
Chipped tooth or foreign object lodged
in cut.
Stop the saw and remove lodged
particle. Replace blade if damaged.
Blade binds in the
workpiece.
Incorrect blade tension or damaged
blade.
Correct accordingly.
Blade too wide for desired radius.
Select narrower blade. See chart on
page 28.