Blade's

Answer:
Cause 1: Blade is mounted on a defective saw Remedy: Check for bad bearings, bent shaft, or worn mounting arbor. Check clamping discs to make sure they are clean, flat and of correct diameter. Cause 2: Blade runs at improper operating speed Remedy: Make certain that blade shaft is running at recommended RPM to match tenshioned speed of the saw.  For concrete saws, use a tachometer to check and see that engine is at proper speed. Cause 3: Blade collar diameters are not identical.  Blade bands as a result of dropping or twisting Remedy: Use proper size blade collars.
Answer:
Answer:
Cause 1: Blade flutters in cut as a result of losing blade tension Remedy:  Tighten the blade shaft nut.  Make sure blade is running at proper tensioned speed and that drive pin is functioning properly. Cause 2: Blade specification is too hard for the material being cut Remedy: Use a softer bond to eliminate stresses which create cracks.