DeWalt DWE43840CN, Instruction Manual

English

3

into account the working conditions and the 
work to be performed. 

Use of the power tool for 

operations different from those intended could result 
in a hazardous situation.

5) Service

a ) 

Have your power tool serviced by a qualified 
repair person using only identical replacement 
parts.

This will ensure that the safety of the power 

tool is maintained.

SAFETY INSTRUCTIONS FOR ALL 
OPERATIONS
Safety Warnings Common for Grinding, 
Sanding, Wire Brushing, Abrasive Cutting-
Off Operations

a ) 

This power tool is intended to function as a 
grinder, sander, wire brush, or cut-off tool. Read 
all safety warnings, instructions, illustrations 
and specifications provided with this power tool. 

Failure to follow all instructions listed below may 
result in electric shock, fire and/or serious injury.

b ) 

Do not use for polishing.

c ) 

Do not use accessories which are not specifically 
designed and recommended by the tool 
manufacturer. 

Just because the accessory can 

be attached to your power tool, it does not assure 
safe operation.

d ) 

The rated speed of the accessory must be at least 
equal to the maximum speed marked on the 
power tool. 

Accessories running faster than their 

rated speed can break and fly apart.

e ) 

The outside diameter and the thickness of your 
accessory must be within the capacity rating of 
your power tool.

 Incorrectly sized accessories cannot 

be adequately guarded or controlled.

f ) 

Threaded mounting of accessories must match 
the grinder spindle thread. For accessories 
mounted by flanges, the arbor hole of the 
accessory must fit the locating diameter of the 
flange.

 Accessories that do not match the mounting 

hardware of the power tool will run out of balance, 
vibrate excessively and may cause loss of control.

g ) 

Do not use a damaged accessory. Before each 
use inspect the accessory such as abrasive 
wheels for chips and cracks, backing pad for 
cracks, tear or excess wear, wire brush for loose 
or cracked wires. If power tool or accessory 
is dropped, inspect for damage or install an 
undamaged accessory. After inspecting and 
installing an accessory, position yourself and 
bystanders away from the plane of the rotating 
accessory and run the power tool at maximum 
no-load speed for one minute. 

Damaged 

accessories will normally break apart during this 
test time.

h ) 

Wear personal protective equipment. Depending 
on application, use face shield, safety goggles or 
safety glasses. As appropriate, wear dust mask, 
hearing protectors, gloves and workshop apron 
capable of stopping small abrasive or workpiece 
fragments. The eye protection must be capable 
of stopping flying debris generated by various 
operations. The dust mask or respirator must 
be capable of filtrating particles generated by 
your operation.

 Prolonged exposure to high intensity 

noise may cause hearing loss.

i ) 

Keep bystanders a safe distance away from work 
area. Anyone entering the work area must wear 
personal protective equipment. 

Fragments of 

workpiece or of a broken accessory may fly away and 
cause injury beyond immediate area of operation.

j ) 

Hold the power tool by insulated gripping 
surfaces only, when performing an operation 
where the cutting accessory may contact hidden 
wiring or its own cord. 

Cutting accessory contacting 

a “live” wire may make exposed metal parts of the 
power tool “live” and could give the operator an 
electric shock.

k ) 

Position the cord clear of the spinning accessory. 

If you lose control, the cord may be cut or snagged 
and your hand or arm may be pulled into the 
spinning accessory.

l ) 

Never lay the power tool down until the 
accessory has come to a complete stop. 

The 

spinning accessory may grab the surface and pull the 
power tool out of your control.

m ) 

Do not run the power tool while carrying it at 
your side.

 Accidental contact with the spinning 

accessory could snag your clothing, pulling the 
accessory into your body.

n ) 

Regularly clean the power tool’s air vents. 

The 

motor’s fan will draw the dust inside the housing and 
excessive accumulation of powdered metal may cause 
electrical hazards.

o ) 

Do not operate the power tool near flammable 
materials.

 Sparks could ignite these materials.

p ) 

Do not use accessories that require liquid 
coolants.

 Using water or other liquid coolants may 

result in electrocution or shock.

q ) 

Do not use Type 11 (flaring cup) wheels on this 
tool.

 Using inappropriate accessories can result 

in injury.

r ) 

Always use side handle. Tighten the handle 
securely.

 The side handle should always be used to 

maintain control of the tool at all times.

s ) 

When starting the tool with a new or 
replacement wheel, or a new or replacement 
wire brush installed, hold the tool in a well 
protected area and let it run for one minute. If 
the wheel has an undetected crack or flaw, it 
should burst in less than one minute. If the wire 
brush has loose wires, they will be detected.