What to do if a problem occurs
Under normal operations, your blades should last a very long time, if however,
you do encounter problems, please use the tables below to assit you in finding the correct
action for your problem
| Loss of Seqments |
Causes |
Action |
 |
Overheating due to insufficient water, often indicated by bluing or discolouration of the steel blank |
Increase water flow to both sides of the blade and check for blocked water lines. Wherever possible use laser welded blades |
| Material not being held firmly, causing the blade to twist or jam in the cut |
Hold the material firmly. If using masonry saw, clamp material or check table wheels for excessive wear |
| Blade is too hard for the material being cut |
Use the proper blade specification for the material being cut |
| Twisting or turning the saw while the blade is cutting causing the blade to jam |
Follow safe operating practises or use blades with greater blank thinkness |
| Undercutting of the blank when cutting abrasive materials |
Use blades with undercut protection or increase water flow to wash away abrasive slurry, or cut totally dry.
Consult your supplier for further guidance |
| Defective clamp plates which cause the blade to flutter in the cut |
Ensure flanges are clean, free from dirt and burrs |
| Blade is cutting out of round, resulting in a pounding action |
Replace defective machine parts such as bearings or blade shaft |
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| Crack in Seqments |
Causes |
Action |
 |
The blade is too hard for the material being cut |
Use a software, more free cutting blade |
| Peripheral speed of the blade is excessive |
Ensure correct rotational speed for the blade diameter |
Return to problem list
| Short Blade Life |
Causes |
Action |
 |
Using the wrong specification for the material being cut |
Consult your supplier for the correct blade to use for any given material |
| If wet cutting, inadequat water supply |
Increase water flow and check for blocked hoses or jets |
| Blade wears out of round |
Check condition of bearings and blade shaft |
| Loss of power on the machine due to slipping belts |
Tighten drive belts |
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| Blade Will Not Cut |
Causes |
Action |
 |
Blade is too hard for the material being cut |
Use a softer bond |
| Balde has polished or glazed, probably due to bond being too hard |
Use a softer bond, or re-dress in abrasive material |
| Machine is not powerful enough, or suffers loss of power |
Ensure belts are tight and use adequat horsepower for the cutting application |
| New blade is not well exposed |
Allow blade to sharpen itself by cutting shallow passes |
| Segment has mushroomed over dur to the bond being too hard |
Return to supplier to re-sharpen the blade and dress the segments |
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| Uneven Segment Wear |
Causes |
Action |
 |
Wet cutting - insufficient water, generally on the one side of the blade |
Ensure sufficient water is distributed evenly to both sides of the blade.
Check water nozzles are not blocked |
| Saw head misaligned |
Check saw head alignment for both horizontal and vertical squareness |
| Equipment defective |
Check machine bearings and spindle |
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| Blank Undercutting |
Causes |
Action |
 |
Wearing of the steel blank under the segments when cuttings abrasive materials |
Do not cut into sub-base beneath asphalt, as sand and gravel will cause excessive wear on the steel blank |
| Use blades with tungsten or diamond undercutting protectors |
| Increase water flow to flush away abrasive slurry |
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| Cracking In Steel Blanks |
Causes |
Action |
 |
Balde is too hard for the material being cut |
Use softer bond to eliminate stress |
| Blade flutters due to insecure mounting |
Ensure the blade is correctly mounted, the drive pin is used (if fitted), and the clamping nut is securely tightened |
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| Blade Worn Out Of Round |
Causes |
Action |
 |
Worn blade shaft bearings, causing the blade to run eccentrically and wear out of round |
Replace bearings |
| Blade shaft bent, worn or grooved |
Replace shaft |
| Bond is too hard for material, causing the machine to pound" |
Use softer Blade |
Return to problem list
| Arbor Hole Out Of Round |
Causes |
Action |
 |
Clamp plates are not properly tightened, allowing the blade to slip on the shaft |
Ensure poper clamping of the blade and drive pin is used (if fitted) |
| Blade is not mounted correctly, or shaft is grooved |
Ensure bore hole diameter matches blade shaft diameter |
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| Blade Overheating |
Causes |
Action |
 |
Wet cutting - inadequate water supply or blocked jets |
Increase water supply
Clear waterways |
| Dry cutting - excessive cutting pressure |
Use softer bond or allow blade to cool frequently while cutting |
| Do not use excessive force, especially on high H.P. machines |
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| Loss Of Tension |
Causes |
Action |
 |
Steel centre has been overheated |
Increase water supply to both sides of the blade |
| Blade spinning on shaft |
Tighten clamp plate nut and use drive pin (if fitted) |
| Blade rubbing on the side of the machine |
Check saw alignment/blade guard |
| Blade is too hard |
Use softer bond and ensure of the correct peripheral speed of the blade |
| Insecure clamp plates |
Ensure clamp plates are the same size and the correct diameter |
| Incorrect blade speed |
Ensure blade speed is compatible with the machine RPM
Check spindle speed |
| RETURN TO SUPPLIER FOR RE-TENSIONING |
Return to problem list
| Blade Wobbles |
Causes |
Action |
 |
Balde shaft is bend or grooved.
Bearings have failed
Blade out of tension |
Check for a bent or worn spindle, damaged or worn bearings |
Check clamp plates are clean, free from dirt and burrs
Check for loss of tension |
| Incorrect blade speed |
Ensure blade speed is compatible with machine RPM
Check spindle speed |
| Balde is bent |
Do not use - contact supplier |
Return to problem list
