Makita DGA454 Instruction Manual

Also see for DGA405: Instruction manual Instruction manual Technical information Instruction manual Instruction manual

12• Always wear safety goggles or a face shield duringoperation.• After operation, always switch off the tool and waituntil the wheel has come to a complete stopbefore putting the tool down.Grinding and sanding operationFig.19ALWAYS hold the tool firmly with one hand on housingand the other on the side handle. Turn the tool on andthen apply the wheel or disc to the workpiece.In general, keep the edge of the wheel or disc at anangle of about 15 degrees to the workpiece surface.During the break-in period with a new wheel, do notwork the grinder in the B direction or it will cut into theworkpiece. Once the edge of the wheel has beenrounded off by use, the wheel may be worked in both Aand B direction.Operation with abrasive cut-off / diamondwheel (optional accessory)Fig.20Remove the battery cartridge from the tool and place itupside down allowing easy access to spindle. Mount theinner flange and abrasive cut-off / diamond wheel ontothe spindle. Tighten the lock nut securely with suppliedwrench. The direction for mounting the lock nut and theinner flange varies by wheel thickness.Refer to the table below.Abrasive cut-off wheel Diamond wheelThickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or more16 mm (5/8") 20 mm (13/16")22.23 mm (7/8")Abrasive cut-off wheel Diamond wheelThickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or moreThickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or more Thickness: Less than 4 mm (5/32") Thickness: 4 mm (5/32") or more22.23 mm (7/8") 22.23 mm (7/8") 22.23 mm (7/8")16 mm (5/8") 20 mm (13/16")1231434.3.2.1.100 mm (4")115 mm (4 - 1/2") / 125 mm (5")123143Lock nut Abrasive cut-off wheel Inner flange Diamond wheel4.3.2.1. Lock nut Abrasive cut-off wheel Inner flange Diamond wheel010848WARNING:• When using an abrasive cut-off / diamond wheel,be sure to use only the special wheel guarddesigned for use with cut-off wheels. (In someEuropean countries, when using a diamond wheel,the ordinary guard can be used. Follow theregulations in your country.)• NEVER use cut-off wheel for side grinding.• Do not "jam" the wheel or apply excessivepressure. Do not attempt to make an excessivedepth of cut. Overstressing the wheel increasesthe loading and susceptibility to twisting or bindingof the wheel in the cut and the possibility ofkickback, wheel breakage and overheating of themotor may occur.