SAFETY INSTRUCTIONS
Cutting blades
Type of cutting blades
Check that the blade is approved for the same or higher speed according to the aproval plate of the engine. Do not exceed the maximum working speed stated on the blade.
Damage
•Ensure the blade it not cracked or damaged in any other way.
•Test the blade by hitting it
gently with a piece of wood. If the blade does not give a
•Never use a blade that has fallen on the floor.
Assembly
• Check that the blade is fitted correctly and is secure.
•Follow all specifications in the table below.
Specifications for fitting blades
| Standard blades | inches | .787 | 7/8 | 1 |
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| centre hole (spindle) | mm | 20 | 22,2 | 25,4 |
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| Reducing bush* | Max. thickness | Blade thickness | |||
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| Min thickness | 3 mm (1/8") |
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| Backing pad | Material | Highly compressible, | |||
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| Max. thickness | 0,5 mm (.020") |
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| Spindle hole/ | Play | 0,2 mm (.010") |
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| Flange tightening | The blade does not slip, flange not bent | ||||
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| Blade/guard | Check that the blade runs free of the | ||||
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*Plastic reducing bushes may only be used with abrasive blades. Do not use reducing bushes with diamond blades or tungsten carbide tipped blades. We recommend that the spindle is replaced so that it fits the blades to be used rather than using a reducing bush. Contact your service workshop for details.
Guard
Check that the guard is not cracked or shows signs of any other damage. Clean the inside of the guard before fitting a new blade. Check that the guard can be adjusted.
Diamond blades
Diamond blades are basically made in the same way as abrasive blades but are manufactured from industrial diamonds held together by a bonding agent.
DIAMOND BLADE TYPES AND USES
Diamond | General char- | Material | Water cooling |
blade | acteristics |
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| Low cost per | All brickwork, | Increases the |
| cutting opera- | reinforced | blades service |
| tion. Less blade | concrete and | life. |
| changes. | other |
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| Constant cutting | composite |
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| depth. Less | materials. |
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| dust. | NOT |
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| recommended |
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| for metal. |
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!WARNING!
Cool a diamond blade continously with water to prevent overheating, which can cause the blade to break and pieces being thrown off resulting in injury and damage.
Using diamond blades
Proceed as follows:
•Let the blade rotate in the same direction as the arrow indicates.
•Cool continually with water.
•Keep the blade sharp.
•Remove the blade when transporting the cutter.
Avoid:
•Running the blade in the wrong direction.
•Forcing a dull blade or wedging the blade into a cut.
•Transporting the cutter with the blade fitted.
•Letting the blade fall on the work piece.
Dry diamond blades
Dry diamond blades are a new generation of blades that do not require water cooling. However, the blades are still damaged by excessive heat. It is good economics to let the blade cool by simply lifting the blade from the cut every
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