Makita GA5042C GA4542C/GA5042C Instruction Manual - Page 12

WARNING: • When using an abrasive cut-off / diamond wheel, be sure to use only the special wheel guard designed for use with cut-off wheels. • NEVER use cut-off wheel for side grinding. • Do not "jam" the wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback, wheel breakage and overheating of the motor may occur. • Do not start the cutting operation in the workpiece. Let the wheel reach full speed and carefully enter into the cut moving the tool forward over the workpiece surface. The wheel may bind, walk up or kickback if the power tool is started in the workpiece. • During cutting operations, never change the angle of the wheel. Placing side pressure on the cut-off wheel (as in grinding) will cause the wheel to crack and break, causing serious personal injury. • A diamond wheel shall be operated perpendicular to the material being cut. Operation with wire cup brush (optional accessory) CAUTION: • Check operation of brush by running tool with no load, insuring that no one is in front of or in line with brush. • Do not use brush that is damaged, or which is out of balance. Use of damaged brush could increase potential for injury from contact with broken brush wires. 1. Wire cup brush 1 012743 Unplug tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Thread wire cup brush onto spindle and tighten with supplied wrench. When using brush, avoid applying too much pressure which causes over bending of wires, leading to premature breakage. Operation with wire wheel brush (optional accessory) CAUTION: • Check operation of wire wheel brush by running tool with no load, insuring that no one is in front of or in line with the wire wheel brush. • Do not use wire wheel brush that is damaged, or which is out of balance. Use of damaged wire wheel brush could increase potential for injury from contact with broken wires. • ALWAYS use guard with wire wheel brushes, assuring diameter of wheel fits inside guard. Wheel can shatter during use and guard helps to reduce chances of personal injury. 1. Wire wheel 1 brush 012744 Unplug tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Thread wire wheel brush onto spindle and tighten with the wrenches. When using wire wheel brush, avoid applying too much pressure which causes over bending of wires, leading to premature breakage. MAINTENANCE CAUTION: • Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. • Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result. 1 1. Exhaust vent 2. Inhalation vent 2 012732 The tool and its air vents have to be kept clean. Regularly clean the tool's air vents or whenever the vents start to become obstructed. 12