CAUSE

REMEDY

Change to a softer bond, which will wear away more readily, allowing the dull diamonds to be released and sharp, new cutting edges to become exposed.

The saw's blade shaft may have a groove scored in it, caused by a blade spinning between the flanges. A new blade, installed on the arbor shaft, will seat into the groove, and immediately run eccentrically when the saw starts.

Replace the worn shaft.

If the blade shaft bearings are worn, the shaft and mandrel will run eccentrically, causing the blade to wear out of round. Can happen with concrete saws when proper lubrication of the bearings is neglected.

Install new blade shaft bearings. In some cases it might also be necessary to replace the blade shaft if it is worn or out of alignment.

CAUSE

REMEDY

Using the wrong blade on highly abrasive material. (Example: hard concrete blade used on asphalt)

Recommend the proper blade specification for abrasive material.

Lack of sufficient water to the blade. Often detected by examining the segment and noting overexposed or highly exposed diamonds.

Clean up the water system. Make certain the water pump is functioning properly.

Insufficient power caused by loose V-belts, inadequate voltage/amperage, or improper RPMs.

Tighten belts (taut). Replace worn belts. Check voltage/amperage. Use proper size extension cord.

Blades become glazed due to excessive RPM.

Check blade shaft and flanges to ensure proper alignment of the blade and equipment.

Blade shaft RPM is too low.

Check the operating RPM of the blade shaft. If necessary, change equipment or modify the blade shaft speed.