Norton Abrasives BBC157, BBC547, BBC207 owner manual How To Use Step Cutting With Abrasive Blades

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II. OPERATION

B. How To Use " Step Cutting " With Abrasive Blades

Use "step cutting" without exception when cutting wet or dry with abrasive blades. "Jam cutting", which is discussed and illustrated in the section following, is to be used only with wet and dry cutting diamond blades.

1.Clamp and hold material firmly against the backstop on conveyor cart. Be certain the material does not slip or rock during cutting operation, as this can bind blade, causing excessive wear and fracture.

2.Move the conveyor cart near the blade, and pull down on the head until the blade is lowered to a point where it will lightly contact the top of the material. Then start "step cutting" - which means passing the material beneath the blade with rapid , (50 to 60 strokes per minute) full length strokes, taking a shallow cut (approximately 1/8" deep ) on the forward, and also on the backward stroke. Complete each rapid stroke backward and forward, by passing the material beyond the center of the blade before starting the reverse movement of the cart. The harder the material, the more rapid the forward and backward strokes.

3."Step cutting as can be seen in the sketch below, lessens the area of the blade circumference in contact with the material, keeping the blade cool, running free, and cutting at peak efficiency. Don't get the impression "step" cutting means slow cutting - actually it is 6 times faster than trying to "force" the cut by strong-arming the material through the blade. Forcing the blade through with a deep cut causes a longer area of the blade circumference to be in contact with the material, causing excessive friction heat to be generated, which then causes the blade to "smear" or "load" with fused material particles and lose its sharp cutting surface. (Note: If improper operation should cause an abrasive blade to "smear", make several cuts through a soft brick to "dress” the blade back to good cutting performance.)

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Contents Compact Masonry SAW Models Form 7506 rev 2/2006Warranty Preparation III. MaintenanceIV. Parts List Section OperationSafety Precautions Hazard SymbolsDust and Silica Warning You Are Responsible For Your Safety Assembly Part NumberHead Locking Handle Depth Limiting Bolt Head Locking Screw RemovalLeg Assembly Plastic Knob AttachmentConveyor Cart Assembly Guide-A-Cut AssemblyWater Curtain Assembly WrenchesWater Pump Assembly Wrench PlacementCharacteristics BBC157/207/547 Series Masonry Saw SpecificationsDimensions/Weight Electric MotorSaws are wired for 115 Volt from the factory Electrical ConnectionsGenerators Wiring Diagram Electrical Connections VoltGasoline Engine Installing the Blade II. OperationHow To Use Step Cutting With Abrasive Blades II. Operation How To Use Blockbuster Compact For Dry Cutting How To Use Blockbuster Compact For Wet CuttingIII. Maintenance BeltsMotor EngineBlade Shaft Bearings Pump Lubrication of Sealmaster BearingsParts List Power Unit Service InformationOrdering Information Power Plant BBC547 Gasoline Item No Description Power Plant BBC157-207 Electric Frame Common All BBC157-207-547 Item No Description Part Number Cutting Head Common All BBC157-207-547 Locking Handle for cutting head was Cutting Table Common All BBC157-207-547 Conveyor Cart aka Cutting Table Complete Baldor Service Policy Honda Service Policy Sold and Serviced by