DeWalt DWE4120N Edge Grinding with Grinding Wheels FIG, Mounting Sanding Backing Pads FIG

EDGE GRINDING WITH GRINDING WHEELS (FIG. 11)

WARNING: Wheels used for cutting and edge grinding may break 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" 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. See the chart on page 9 for more information. Type 1 guards are available at extra cost from your local dealer or authorized service center.

1.Allow the tool to reach full speed before touching the tool to the work surface.

2. Apply minimum pressure to the work FIG. 11 surface, 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-

pressures encountered with surface grinding. Wheel breakage and injury may result.

SURFACE FINISHING WITH SANDING FLAP DISCS (FIG. 12)

1.	Allow the tool to reach full speed before touching the tool to the
	work surface.	FIG. 12
2.	Apply minimum pressure to work
	surface, allowing the tool to operate
	at high speed. Sanding rate is	5˚–10˚
	greatest when the tool operates at

high speed.

3.Maintain a 5˚ to 10˚ angle between the tool and work surface.

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 tool to stop rotating before laying it down.

MOUNTING SANDING BACKING PADS (FIG. 13)

English

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 tool to stop rotating before laying it down.

WARNING: Do not use edge grinding/cutting wheels for surface grinding applications because these wheels are not designed for side

WARNING: Proper guard must be reinstalled for grinding wheel, sanding flap disc, wire brush or wire wheel applications after sanding applications are complete.

1.Place or appropriately thread backing pad (O) on the spindle.

2.Place the sanding disc (P) on the backing pad.

3.While depressing spindle lock, thread the clamp nut (E) on spindle, piloting

FIG. 13 P

E

O

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