Trouble
Cracks on back edge of blade.
Blade breaks prematurely.
Blade breaks close to weld.
Premature dulling of saw teeth.
Probable Cause |
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Blade sharpened | incorrectly, becomes | Sharpen blade properly or replace. | |||||||||
overheated. |
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Band wheels have become misaligned. | Contact service representative. |
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Workpiece being fed too quickly. | Reduce feed speed to lessen strain on | ||||||||||
blade. |
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| Eliminate welded part, and | |||||||||
Welding on blade not perfectly aligned. | properly; or acquire a new blade. Round | ||||||||||
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| the back edge of a new blade. |
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Thrust bearing | is worn; caused by | Replace | thrust | bearing. | Adjust new | ||||||
bearing according to instructions (sect. | |||||||||||
constant contact with back of blade. | |||||||||||
8.14). |
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Feed force too great. | Reduce feed force. |
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Blade pitch too coarse. | Refer to blade selection chart; use finer | ||||||||||
pitch blade. |
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Guide bearings not properly supporting | Check | guide | bearings | for |
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position | and | signs of | wear. Adjust or | ||||||||
blade. |
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| replace as needed. |
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Blade tensioned too tightly. | Reduce tension. |
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Blade overheated during welding. | Have | blade | annealed, | or | eliminate | ||||||
brittle part and weld correctly. |
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Blade cooled too rapidly after welding. | Have | blade | annealed, | or | eliminate | ||||||
brittle part and weld correctly. |
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Blade pitch too fine. | Refer | to | blade | selection | chart | (sect. | |||||
13.0). Use blade with coarser pitch. | |||||||||||
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Feed pressure too light. | Increase feed pressure. |
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Cutting rate too low. | Increase feed pressure and cutting rate. | ||||||||||
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Incorrect choice of blade. | material. | Select | proper | ||||||||
blade from chart (sect. 13.0). |
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Chipped tooth or foreign object lodged | Stop saw and remove lodged particle. | ||||||||||
in cut. |
| Replace blade if damaged. |
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