DeWalt DWE4050, DWE4001 User Manual

DWE4001

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DWE4050

English (original instructions) 3

Français (traduction de la notice d’instructions originale) 15

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DWE4050

DWE4001

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DWE4050

DWE4001

ANGLE GRINDERS DWE4001, DWE4050

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Congratulations!

You have chosen a DEWALT tool. Years of experience, thorough product development and innovation make DEWALT one of the most reliable partners for professional power tool users.

Technical Data

DWE4001 DWE4050 B4/B5 B4/B5

Voltage V 127/220–240 127/220–240 Type 1 1 Power input W 800 800 No-load/rated speed min-1 12000 12000 Wheel diameter mm 100 115 Spindle diameter M10 M14 Weight kg 1.72* 1.76*

* weight includes side handle and guard

Deﬁ nitions: Safety Guidelines

The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols.

DANGER: Indicates an imminently

hazardous situation which, if not avoided, will result in death or serious injury.

WARNING: Indicates a potentially

hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION: Indicates a potentially

hazardous situation which, if not avoided, may result in minor or

moderate injury.

NOTICE: Indicates a practice not

related to personal injury which, if not avoided, may result in property damage.

Denotes risk of electric shock.

Denotes risk of fire.

WARNING: To reduce the risk of injury,

read the instruction manual.

General Power Tool Safety Warnings

WARNING! Read all safety warnings

and all instructions. Failure to follow

the warnings and instructions may result in electric shock, fire and/or serious injury.

SAVE ALL WARNINGS AND INSTRUCTIONS

FOR FUTURE REFERENCE

The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

1) WORK AREA SAFETY

a) Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

b) Do not operate power tools in explosive

atmospheres, such as in the presence of flammable liquids, gases or dust. Power

tools create sparks which may ignite the dust or fumes.

c) Keep children and bystanders away while

operating a power tool. Distractions can cause you to lose control.

2) ELECTRICAL SAFETY

a) Power tool plugs must match the outlet.

Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs

and matching outlets will reduce risk of electric shock.

b) Avoid body contact with earthed or

grounded surfaces such as pipes, radiators, ranges and refrigerators. There

is an increased risk of electric shock if your body is earthed or grounded.

c) Do not expose power tools to rain or wet

conditions. Water entering a power tool will increase the risk of electric shock.

d) Do not abuse the cord. Never use the

cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts.

Damaged or entangled cords increase the risk of electric shock.

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e) When operating a power tool outdoors,

use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use

reduces the risk of electric shock.

f) If operating a power tool in a damp

location is unavoidable, use a residual current device (RCD) protected supply.

Use of an RCD reduces the risk of electric shock.

3) PERSONAL SAFETY

a) Stay alert, watch what you are doing and

use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of

inattention while operating power tools may result in serious personal injury.

b) Use personal protective equipment.

Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

c) Prevent unintentional starting. Ensure

the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger

on the switch or energising power tools that have the switch on invites accidents.

d) Remove any adjusting key or wrench

before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.

e) Do not overreach. Keep proper

footing and balance at all times. This enables better control of the power tool in unexpected situations.

f) Dress properly. Do not wear loose

clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair

can be caught in moving parts.

g) If devices are provided for the connection

of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce

dust-related hazards.

4) POWER TOOL USE AND CARE

a) Do not force the power tool. Use the

correct power tool for your application.

The correct power tool will do the job better and safer at the rate for which it was designed.

b) Do not use the power tool if the switch

does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

c) Disconnect the plug from the power

source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety

measures reduce the risk of starting the power tool accidentally.

d) Store idle power tools out of the reach

of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.

Power tools are dangerous in the hands of untrained users.

e) Maintain power tools. Check for

misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by

poorly maintained power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

g) Use the power tool, accessories and

tool bits etc., in accordance with these instructions taking 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.

ADDITIONAL SPECIFIC SAFETY RULES Safety Instructions for All Operations

a) This power tool is intended to function

as a grinder, sander, wire brush, polisher 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 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.

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c) 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.

d) 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.

e) The arbour size of wheels, flanges, backing

pads or any other accessory must properly fit the spindle of the power tool. Accessories

with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

f) Do not use a damaged accessory. Before

each use inspect the accessory such as abrasive wheel 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.

g) 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.

h) 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.

i) Hold 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 electrical shock.

j) 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.

k) 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.

l) 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.

m) 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.

n) Do not operate the power tool near

flammable materials. Sparks could ignite these materials.

o) Do not use accessories that require liquid

coolants. Using water or other liquid coolants may result in electrocution or shock.

FURTHER SAFETY INSTRUCTIONS FOR ALL OPERATIONS

Causes and Operator Prevention of Kickback

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.

Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

a) Maintain a firm grip on the power tool and

position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control

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over kickback or torque reaction during start up. The operator can control torque reaction or

kickback forces, if proper precautions are taken.

b) Never place your hand near the rotating

accessory. Accessory may kickback over your hand.

c) Do not position your body in the area where

power tool will move if kickback occurs. Kickback will propel the tool in direction opposite to the wheel’s movement at the point of snagging.

d) Use special care when working corners,

sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp

edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.

e) Do not attach a saw chain woodcarving

blade or toothed saw blade. Such blades create frequent kickback and loss of control.

Safety Warnings Speciﬁ c for Grinding and Abrasive Cutting-Off Operations

a) Use only wheel types that are recommended

for your power tool and the specific guard designed for the selected wheel. Wheels for

which the power tool was not designed cannot be adequately guarded and are unsafe.

b) The guard must be securely attached

to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The

guard helps to protect the operator from broken wheel fragments, accidental contact with wheel and sparks that could ignite clothing.

c) Wheels must be used only for recommended

applications. For example: do not grind with the side of cut-off wheel. Abrasive cut-off

wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.

d) Always use undamaged wheel flanges

that are of correct size and shape for your selected wheel. Proper wheel flanges support

the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.

e) Do not use worn down wheels from larger

power tools. Wheel intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst.

Additional Safety Warnings Speciﬁ c for Abrasive Cutting-Off Operations

a) Do not "jam" the cut-off 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 or wheel breakage.

b) Do not position your body in line with and

behind the rotating wheel. When the wheel, at the point of operations, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.

c) When wheel is binding or when interrupting

a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur. Investigate

and take corrective action to eliminate the cause of wheel binding.

d) Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed and carefully reenter the cut. The wheel may

bind, walk up or kickback if the power tool is restarted in the workpiece.

e) Support panels or any oversized workpiece

to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under

their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.

f) Use extra caution when making a "pocket

cut" into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

Safety Warnings Speciﬁ c for Sanding Operations

a) Do not use excessively oversized sanding

disc paper. Follow manufacturer’s recommendations, when selecting sanding paper. Larger sanding paper extending beyond

the sanding pad presents a laceration hazard and may cause snagging, tearing of the disc or kickback.

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Safety Warnings Speciﬁ c for Polishing Operations

a) Do not allow any loose portion of the

polishing bonnet or its attachment strings to spin freely. Tuck away or trim any loose attachment strings. Loose and spinning

attachment strings can entangle your fingers or snag on the workpiece.

Safety Warnings Speciﬁ c for Wire Brushing Operations

a) Be aware that wire bristles are thrown by

the brush even during ordinary operation. Do not overstress the wires by applying excessive load to the brush. The wire bristles

can easily penetrate light clothing and/or skin.

b) If the use of a guard is recommended for

wire brushing, do not allow any interference of the wire wheel or brush with the guard.

Wire wheel or brush may expand in diameter due to work and centrifugal forces.

Additional Safety Rules for Grinders

• 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.

• The grinding surface of the centre depressed wheels must be mounted below the plane of the guard lip. An improperly mounted wheel that projects through the plane of the guard lip cannot be adequately protected.

• Do not use Type 11 (flaring cup) wheels on this tool. Using inappropriate accessories can result in injury.

• Always use side handle. Tighten the handle securely. The side handle should always be used to maintain control of the tool at all times.

Residual Risks

In spite of the application of the relevant safety regulations and the implementation of safety devices, certain residual risks cannot be avoided. These are:

– Impairment of hearing. – Risk of personal injury due to flying particles. – Risk of burns due to accessories becoming hot

during operation.

– Risk of personal injury due to prolonged use. – Risk of dust from hazardous substances.

Markings on Tool

The following pictograms are shown on the tool:

Read instruction manual before use.

Wear ear protection.

Wear eye protection.

DATE CODE POSITION (FIG. 1)

The date code (p), which also includes the year of manufacture, is printed into the housing.

Example:

2012 XX XX

Year of Manufacture

Package Contents

The package contains: 1 Angle grinder 1 Guard 1 Side handle 1 Flange set 1 Wrench 1 Instruction manual 1 Exploded drawing

• Check for damage to the tool, parts or accessories which may have occurred during transport.

• Take the time to thoroughly read and understand this manual prior to operation.

Description (ﬁ g. 1)

WARNING: Never modify the power

tool or any part of it. Damage or personal injury could result.

a. Spindle lock button b. Spindle c. Side handle d. Backing flange e. Threaded clamp nut f. Guard g. Slider switch (DWE4050)

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g1. On/off switch (DWE4001) h. Guard release lever

INTENDED USE

The DWE4001, DWE4050 heavy-duty angle grinders have been designed for professional grinding, sanding, wire brushing, polishing and cutting applications.

DO NOT use grinding wheels other than centre depressed wheels and flap discs.

DO NOT use under wet conditions or in the presence of flammable liquids or gases.

These heavy-duty angle grinders are professional power tools.

DO NOT let children come into contact with the tool. Supervision is required when inexperienced operators use this tool.

• This product is not intended for use by persons (including children) suffering from diminished physical, sensory or mental abilities; lack of experience, knowledge or skills unless they are supervised by a person responsible for their safety. Children should never be left alone with this product.

Electrical Safety

The electric motor has been designed for one voltage only. Always check that the power supply corresponds to the voltage on the rating plate.

Your DEWALT tool is double insulated in

accordance with IEC60745; therefore no earth wire is required.

If the supply cord is damaged, it must be replaced by a specially prepared cord available through the DEWALT service organisation.

Mains Plug Replacement (Middle East and Africa)

If a new mains plug needs to be fitted:

• Safely dispose of the old plug.

• Connect the brown lead to the live terminal in the plug.

• Connect the blue lead to the neutral terminal.

WARNING: No connection is to be

made to the earth terminal.

Follow the fitting instructions supplied with good quality plugs. Recommended fuse: 13 A.

Using an Extension Cable

If an extension cable is required, use an approved 3–core extension cable suitable for the power input of this tool (see Technical Data).The minimum conductor size is 1.5 mm is 30 m.

When using a cable reel, always unwind the cable completely.

; the maximum length

ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk

of serious personal injury, turn tool off and disconnect tool from power source before making any adjustments or removing/installing attachments or accessories. Before

reconnecting the tool, depress and release the trigger switch to ensure that the tool is off. An accidental start-up can cause injury.

Attaching Side Handle (ﬁ g. 1)

WARNING: Before using the tool,

Screw the side handle (c) tightly into one of the holes on either side of the gear case. The side handle should always be used to maintain control of the tool at all times.

check that the handle is tightened securely.

Accessories and Attachments

It is important to choose the correct guards, backing pads and flanges to use with grinder accessories. Refer to chart at the end of this section for information on choosing the correct accessories.

NOTE: Edge grinding and cutting can be performed with Type 27 wheels designed and specified for this purpose.

WARNING: Accessories must be rated

If it does not, it may have been designed for a circular saw and should not be used. Use only the accessories shown in chart at the end of this section. Accessory ratings must be above listed minimum wheel speed as shown on tool nameplate.

for at least the speed recom mended on the tool warning label. Wheels and other accessories running over rated accessory speed may burst and cause injury. Threaded accessories must have a M14 (DWE4050) or M10 (DWE4001) hub. Every unthreaded accessory must have a 22 mm (DWE4050) or 16 mm (DWE4001) arbor hole.

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