Manual DeWalt DWE4246 (page 44 of 204) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH

Variable Speed Dial (Fig. A)

DWE4246, DWE4257

The variable speed dial offers added tool control and enables

the tool to be used at optimum conditions to suit the accessory

and material.

• Turn the dial

8

to the desired level. Turn the dial upward for

higher speed and downwards for lower speed.

Slider Switch (Fig. A)



CAUTION: Hold the side handle and body of the tool

firmly to maintain control of the tool at start up and

during use and until the wheel or accessory stops rotating.

Make sure the wheel has come to a complete stop be fore

laying the tooldown.

NOTE: To reduce unexpected tool movement, do not switch

the tool on or off while under load conditions. Allow the grinder

to run up to full speed before touching the work surface. Lift the

tool from the surface before turning the tool off. Allow the tool

to stop rotating before putting itdown.



WARNING: Before connecting the tool to a power supply,

be sure the slider switch is in the off position by pressing

the rear part of the switch and releasing. Ensure the slider

switch is in the off position as described above after any

interruption in power supply to the tool, such as the

activation of a ground fault interrupter, throwing of a

circuit breaker, accidental unplugging, or power failure. If

the slider switch is locked on when the power is connected,

the tool will startunexpectedly.

To start the tool, slide the ON/OFF slider switch

7

toward

the front of the tool. To stop the tool, release the ON/OFF

sliderswitch.

For continuous operation, slide the switch toward the front of

the tool and press the forward part of the switch inward. To stop

the tool while operating in continuous mode, press the rear part

of the slider switch andrelease.

Spindle Lock (Fig. B)

The spindle lock

1

is provided to prevent the spindle from

rotating when installing or removing wheels. Operate the

spindle lock only when the tool is turned off, unplugged from

the power supply, and has come to a completestop.

NOTICE: To reduce the risk of damage to the tool, do

not engage the spindle lock while the tool is operating.

Damage to the tool will result and attached accessory

may spin off possibly resulting ininjury.

To engage the lock, depress the spindle lock button and rotate

the spindle until you are unable to rotate the spindlefurther.

Surface Grinding, Sanding and

Wire Brushing



CAUTION: Always use the correct guard per the

instructions in this manual.



WARNING: Metal dust build-up. Extensive use of flap

discs in metal applications can result in the increased

potential for electric shock. To reduce this risk, insert an

RCD before use and clean the ventilation slots daily by

blowing dry compressed air into the ventilation slots

inaccordance with the below maintenanceinstructions.

To perform work on a the surface of a workpiece:

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

to the work surface.

2. Apply minimum pressure to the work surface, allowing

the tool to operate at high speed. Material removal rate is

greatest when the tool operates at high speed.

Angle

3. Maintain an appropriate angle between the tool and work

surface. Refer to the chart according to particularfunction.

Function Angle

Grinding 20˚-30˚

Sanding with Flap Disc 5˚-10˚

Sanding with Backing Pad 5˚-15˚

Wire Brushing 5˚-10˚

4. Maintain contact between the edge of the wheel and the

work surface.

- If grinding, sanding with flap discs or wire brushing

move the tool continuously in a forward and back

motion to avoid creating gouges in the worksurface.

- If sanding with a backing pad, move the tool constantly

in a straight line to prevent burning and swirling of

worksurface.

NOTE: Allowing the tool to rest on the work surface without

moving will damage the work piece.

5. Remove the tool from work surface before turning tool off.

Allow the tool to stop rotating before laying it down.



CAUTION: Use extra care when working over an edge, as

a sudden sharp movement of grinder may be experienced.

Precautions To Take When Working on a

Painted Workpiece

1. Sanding or wire brushing of lead based paint is NOT

RECOMMENDED due to the difficulty of controlling the

contaminated dust. The greatest danger of lead poisoning is

to children and pregnant women.

2. Since it is difficult to identify whether or not a paint contains

lead without a chemical analysis, we recommend the

following precautions when sanding any paint:

Personal Safety

1. No children or pregnant women should enter the work area

where the paint sanding or wire brushing is being done

until all clean up is completed.

2. A dust mask or respirator should be worn by all persons

entering the work area. The filter should be replaced daily or

whenever the wearer has difficulty breathing.

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DeWalt DWE4246 Manual

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