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Troubleshooting

 

  1. Check your equipment and insure proper lubrication.
  2. Prior to cutting allow blade a 2 to 3 seconds load free rotation.
  3. For added sharpness on a new blade try cutting a brick for 5 seconds.
    (This will allow for better grit exposure.)
  4. Always maintain firm grip on equipment.
  5. Avoid incline cutting and applying uneven pressure or side pressure.
  6. Prior to wet cutting be sure of adequate water pressure and supply.
  7. Stop cutting immediately should vibration, shaking, unfamiliar sounds or noises occur.
  8. Allow blade to operate at maximum speed while cutting.
  9. Not suitable for ferrous of steel cutting.

 

Cracked Core

Cause Remedy
Blade shaft bearings may possibly be worn. Fit new bearing and ensure regular lubrication.
Blade too hard for the material being cut. Use correct blade with softer bond.
Blade shaft bent, worn or grooved. Replace the shaft.
Clamp plates are not properly tightened. Allowing the blade to slip on the shaft.
Blade is not mounted correctly. Make sure the blade is mounted on the proper shaft diameter before tightening shaft nut. Ensure the pin hole slides over drive pin and the drive pin is in pin hole.
Never use a blade with a cracked core!

 

Segment Loss

Cause Remedy
Blade has twisted of jammed in the cut because the material was not held firmly. Maintain a firm grip on the material and secure the machine firmly.
Machine has been twisted or turned while blade is in the cut. Secure the machine firmly.
Blade core has undercut due to cutting below the asphalt into the sub base. Use sufficient water to flush out the cut.
Blade is too hard for the material being cut. Resulting in the blade hammering in the cut. Use a blade with a softer bond.

Blade is deflected in the cut due to the blade flanges being worn or deformed and failing to provide proper support.

Replace the flange.
Inadequate water supply. Make sure water hoses are clean and free from any blockages. Supply sufficient water flow to both sides of the blade.

 

Tension Loss

Cause Remedy
Blade core has overheated. Check water flow, distribution and lines. Make sure blade speed (RPM) is correct.
The blade is too hard for the application. Use a softer bonded blade to reduce operation stresses.
The blade is spinning on the spindle. Check spindle and arbor hole for damage.
The blade is not cutting in straight lines. Align the machine properly to avoid twisting the blade in the cut.

 

Overheating

Overheating can cause many other problems such as core cracks, loss of tension, and segment loss.
Cause Remedy
Wet Cutting - Inadequate water supply, low water pressure, blocked jets. Check the water feed lines and make sure flow is adequate on both sides of blade.
Dry Cutting - excessive cutting pressure. Use dry blades only for shallow cutting (1-2" deep) or step cutting. Allow blade to run freely every 10 to 15 seconds in order to increase cooling airflow.

 

Undercutting

Cause Remedy
Abrasion of steel center due to highly abrasive fines generated during cutting. Make sure that the blade specification has offset segments to assist removal of the slurry from the cut.
Blade core has undercut due to cutting below the asphalt into the sub base. Make sure that the water supply is correct as increased water flow will wash slurry from the contact area and reduce undercutting.
Constant rubbing of the loose material causes premature wear and has no beneficial effect on the cut surface.

 

Rapid wear

Cause Remedy
Using the wrong specification for the material being cut. Use a blade with the proper blade specification as recommended by the manufacturer.
Using a wet cutting blade for dry cutting. Use a dry cutting blade instead.
Insufficient supply of water to the blade. Make sure water hoses are clean and free from any blockages. Supply sufficient water flow to both side of the blade.
Blade wears out of round. Check bearings and arbor. If worn, replace with new parts before installing another blade.
Loss of power on the machine due to slipping belts. Tighten belts. Replace worn belts. Check voltage. Use proper size extension core.

 

Damaged Arbor Hole

Cause Remedy
Blade is not properly mounted. Make sure that the blade is mounted on the proper diameter of the spindle before tightening. Make sure that the pin holes slide over the drive pins.
Blade collar is not properly tightened and the blade spins or vibrates onto the spindle. Tighten the shaft nut with a wrench to make sure that the blade is adequately secured.
The blade flanges or arbor shaft is badly worn and not providing proper blade support. Replace the worn parts.

 

Segment Cracks

Cause Remedy
The blade is too hard for the material being cut. Use a blade with a softer bond.
Peripheral speed of the blade is excessive. Use manufacture's recommended RPM and traverse speed.
Insufficient water when wet cutting. Make sure water hoses are clean and free from any blockages. Supply sufficient water flow to both sides of the blades.
Saw head misaligned Check saw head alignment for squareness, both vertically and horizontally.
Uneven Segment Wear. Check saw alignment. Clean water system, making certain that water is properly applied to the leading edge of the blade flanges. Check to see if pump is supplying sufficient, even water.
Equipment defective. Replace the equipment.

 

Blade not cutting

Cause Remedy
Blade is too hard for the material being cut. Check that specification is correct for the material being cut. Use a blade with a softer bond.
Machine is not powerful enough, or sufferers loss of power. Check belts, voltage, horsepower.
New blade is not well exposed. Dress with abrasive material until diamonds become exposed.
Blade spinning in the wrong direction of rotation. Check direction of rotation.

 

Blade wobbles

Cause Remedy
Bearings have failed. Replace bearings
Incorrect blade speed. Make sure the blade is operating at the manufacture's suggested RPM.
Blade is not tensioned properly. Have manufacture correct the tension on the blade.
Blade is bent. Replace another blade.

 

 

 

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Silent Core Blades for Granite

 

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