1. Arbor Hole out-of round

Cause – Blade collar not properly tightened,allowing blade to rotate or vibrate on shaft.

Solution – Tighten arbor nut with wrench making sure blade is properly secured.

Cause – Blade not properly mounted.

Solution – Check to make sure blade is mounted on proper diameter of shaft before tightening arbor     nut.Make sure pin hole slides over drive pin.

2.Wobbling/warped blade

Cause – Blade collar mounted improperly.Incorrect collar size.Blade used at improper RPM.

Solution – Check RPM rating for blade and saw.Make sure equipment is operating at rated RPM.Use the correct sized blade collars.Check flanges for smoothness and tightness.

Cause – Steel core is not straight as a result of dropping or twisting.

Solution – Discard blade it is unsafe to use.if practical have manufacturer remove segment and rebraze onto new blank.

3.Segment loss.

Cause – Blade is too hard for material being cut.

Solution – Use blade with proper specification for material being cut.

Cause – Steel center is worn due to undercutting.

Solution – Use sufficient water to flush out cut.

4.Short blade life.

Cause - :Blade is too soft for material.

Solution – Choose blade with more water-resistant bond appropriate for the application.Check water flow and make sure blade is rated for the equipment used.

5. Slow cutting speed.

Cause – Material being cut is too hard for the blade.The hard material wears the exposed diamond but not the metal portion of the segment.The segment wears too slowly,no new diamonds are exposed.

Solution – Cut a soft abrasive material until diamonds are well exposed.Try asphalt block,sandtone,or dried mortar.Choose proper blade for the application.

6.Core or segment cracks.

Cause – Blade is too hard for material being cut.

Solution – Use a softer bonded blade.

Cause – Blade mounted improperly.Saw in need of repair.

Solution – Check it saw is in good condition and make sure blade is rated for the equipment used.Check all bearings,belts,shaft,and flanges.Check direction of blade travel.


Cause – Steel core wears faster than diamond segments caused by highly abrasive fines grinding against blade during cutting.

Solution – Use blade with wear-retardant cores.Increase water flow to flush out cut.

8. Overheated Diamond Saw Blade

Cause - Adequate coolant was not provided.

Solution - Check the water supply for an adequate volume and for obstructions through water system, Use dry diamond saw blades only for shallow cutting of 1-2 inches deep or step cutting. Allow the diamond saw blade to run free every 10-15 seconds to increase cooling ariflow.

Cause - Using improper specification for the material being cut.

Solution - Consult the manufacturer's specification chart for the proper diamond saw  blade.

9. Diamond Saw Blade Won't Cut

Cause - Diamond saw blade is too hard for the materials being cut. (Examples: block or general purpose diamond saw blade being used for extended period on hard brick. Asphalt diamond saw blade being used to cut hard concrete.)

Solution - Consult the dealer or manufacturer for the proper diamond saw blade to cut materials on the job.

Cause - Insufficient power to permit the diamond saw blade to cut properly. (Loose V-belts, low voltage, motor lacks horsepower).

Solution - Check belts, voltage/amperage and horsepower.

Cause - Diamond saw blade segments still appear to have plenty of life, but the diamond saw blade will not cut.

Solution - Some diamond saw blades have a non-diamond bearing section in the backing at the base of the diamond segment for better adherence to the steel core. A diamond saw blade used to this stage has worn out in the normal manner and should be replaced.

Cause - Diamond saw blades become glazed due to excessive RPM.

Solution - Match diamond saw blade specification and diameter to the machine RPM and cutting conditions.

Cause - Diamond saw blade becomes glazed due to inadequate pressure against the material being cut.

Solution -  Ensure proper pressure to keep the diamond saw blade sharpened, while avoiding an excess of pressure.