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Trouble
Blade breaks
prematurely (cont.)
Blade breaks close to
weld.
Premature dulling of
saw teeth.
Probable Cause
Guide bearings not properly supporting
blade.
Blade tensioned too tightly.
Blade overheated during welding.
Blade cooled too rapidly after welding.
Blade pitch too fine.
Feed pressure too light.
Cutting rate too low.
Incorrect choice of blade.
Chipped tooth or foreign object lodged
in cut.
Remedy
Check
guide
position and signs of wear. Adjust or
replace as needed.
Reduce tension.
Have blade annealed, or eliminate
brittle part and weld correctly.
Have blade annealed, or eliminate
brittle part and weld correctly.
Refer to blade selection chart (sect.
13.0). Use blade with coarser pitch.
Increase feed pressure.
Increase feed pressure and cutting rate.
Re-examine material. Select proper
blade from chart (sect. 13.0).
Stop saw and remove lodged particle.
Replace blade if damaged.
25
bearings
for
correct
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