Arbour Hole Out-of-Round CAUSE: Saw arbour badly worn due to improperly seated blade. REMEDY: Be certain the blade is properly seated on the arbour before tightening the flange. CAUSE: Blade flanges are not properly tightened, permitting blade to rotate on the shaft. REMEDY: Always wrench tighten arbour nut. Never hand tighten. Always use hex nuts, never use wing nuts. CAUSE: Blade flanges are worn and not providing support. REMEDY: Check flanges for wear, replace worn flanges will crack. The saw operator should use steady, even in-feed pressure, and be careful not to twist or jam the blade in the cut. CAUSE: Overheating through inadequate water supply or improper use of dry cutting blade. REMEDY: Use adequate water to cool wet cutting diamond blades. Allow adequate airflow around dry cutting blades to prevent overheating.
Cracked Segments CAUSE: Blade is too hard for material being cut. REMEDY: Use correct blade with softer bond.
Uneven Segment Wear CAUSE: Segments are worn on one side, reducing side clearance. It’s usually caused by misalignment of the saw or uneven water flow on both sides of the blade. REMEDY: Check saw alignment. Clean the water system, making certain that water is applied evenly to the leading edge of the blade. Check pump for supply of sufficient water. CAUSE: Blade is worn out-of-round due to bad bearings, worn arbour. REMEDY: Replace bearings in saw. CAUSE: Using the wrong blade on abrasive material. REMEDY: Consult the dealer or manufacturer for the proper blade specifications for material being cut.
Never use a blade with a cracked blank/core.
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