Dewalt DWE4559N Instruction Manual - Page 18
Edge Grinding With Grinding Wheels, Fig. 12, Surface Finishing With Sanding Flap Discs Fig. 13,
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English 4. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface. 5. Remove the tool from work surface before turning tool off. Allow the wheel to stop rotating before laying the tool down. EDGE GRINDING WITH GRINDING WHEELS (FIG. 12) WARNING: Wheels used for cutting and edge grinding may break or kickback if they bend or twist while the tool is being used to do cut-off work or deep grinding. To reduce the risk of serious injury, limit the use of these wheels with a standard Type 27 guard to shallow cutting and notching (less than 1/2" [13 mm] in depth). The open side of the guard must be positioned away from the operator. For deeper cutting with a Type 1 cut-off wheel, use a closed Type 1 guard. Refer to pages 11-13 for more information. 1. Allow the tool to reach full speed before touching the tool to the work surface. 2. Apply minimum pressure to the work surface, FIG. 12 allowing the tool to operate at high speed. Grinding rate is greatest when the tool operates at high speed. 3. Position yourself so that the open-underside of the wheel is facing away from you. 4. Once a cut is begun and a notch is established in the workpiece, do not change the angle of the cut. Changing the angle will cause the wheel to bend and may cause wheel breakage. Edge grinding wheels are not designed to withstand side pressures caused by bending. 5. Remove the tool from the work surface before turning the tool off. Allow the wheel to stop rotating before laying the tool down. WARNING: Do not use edge grinding/cutting wheels for surface grinding applications because these wheels are not designed for side pressures encountered with surface grinding. Wheel breakage and serious personal injury may result. SURFACE FINISHING WITH SANDING FLAP DISCS (FIG. 13) 1. Allow the tool to reach full speed before FIG. 13 touching the tool to the work surface. 2. Apply minimum pressure to work surface, allowing the tool to operate at high speed. Sanding rate is greatest when the tool operates at high speed. 3. Maintain a 5° to 10° angle between the tool and work surface. 5˚-10˚ 4. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface. 5. Remove the tool from work surface before turning tool off. Allow the wheel to stop rotating before laying the tool down. MOUNTING SANDING BACKING PADS (FIG. 14) NOTE: Guard may be removed when using sanding backing pads. WARNING: Proper guard must be reinstalled for grinding wheel, cutting wheel, sanding flap FIG. 14 disc, wire brush or wire wheel applications after R T sanding applications are complete. 1. Place or appropriately thread backing pad (S) on the spindle. 2. Place the sanding disc (T) on the backing pad (S). 3. While depressing the spindle lock button, thread clamp nut (R) on spindle, piloting the raised hub on the clamp nut into the center S of sanding disc and backing pad. 16
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