DeWalt DWE4517 Manuel utilisateur

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Manuel utilisateur
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INSTRUCTION MANUAL INSTRUCTIVO DE OPERACION, CENTROS DE SERVlCIO Y POLIZA DE
GUIDE D'UTILISATION GARANT[A. ADVERTENCIA: LEASE ESTE INSTRUCTIVO ANTES DE
USAR EL PRODUCTO.
MANUAL DE INSTRUCCIONES
®
DWE4517, DWE4519
Heavy-Duty Large Angle Grinders
Grandes rectifieuses coud_es de service intensif
Esmeriladoras de angulo grande para trabajo pesado
Definitions: Safety Guidelines
The definitions below describe the level of severity br each
signal word. Please read the manual and pay attention to these
symbols.
i_DANGER: Indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
i_ WARNING: Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
i_ 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.
J
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR
ANY DEWALT TOOL, CALL US TOLL FREE AT: 1-800-4-DEWALT
(1-800-433-9258}.
_ ARNING: To reduce the risk of injury, read the instruction
manual.
General Power Tool Safety Warnings
A WARNIN!! 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.
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.
If operating apowertool in a damp location is unavoidable,
use a ground fault circuff interrupter (GFCI) protected
supply. Use of a GFC/ 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 energizing 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.
Dress properly. Do not wear loose clothing or jewelry.
Keep your hair, clothing and gloves away from moving
parts. Loose clothes, jewelry 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 toors operation. If
damaged, have the power tool repaired before use. Many
accidents are caused by poorly maintained power tools.
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.
SAFETY INSTRUCTIONS FOR
ALL OPERATIONS
Safety Warnings Common for Grinding,
Sanding, Wire Brushing, Polishing or
Abrasive, Cutting-Off 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 allinstructions
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.
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 arbor size of wheels, flanges, backing pads or
any other accessory must properly fit the spindle of
the power tool. Accessories with arbor 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.
0 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.
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 shock the operator.
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
I) 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.
p) Always use side handle. Tighten the handle securely. The
side handle should always be used to maintain control of the
tool at all times.
Kickback and Related Warnings
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 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. Comers,
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 Specific 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 too/ 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 operator from broken wheel fragments and
accidental contact with wheel
c) Wheels must be used only forrecommended 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 Specific for
Abrasive Cutting-Off Operations
a) Do not 'yam" 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 operation, 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
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 Specific for Sanding
Operations
a) Do not use excessively oversized sanding disc paper.
Follow manufacturers 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.
Safety Warnings Specific 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 Specific 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
WARNING: The grinding wheel or accessory may loosen
during coast-down of the tool when shut off. If grinding wheel
or accessory loosens, it may dismount from the machine and may
cause serious personal injury.
Use of accessories not specified in this manual is not
recommended and may be hazardous. Use of power boosters
that would cause the tool to be driven at speeds greater than its
rated speed constitutes misuse.
Use clamps or anotherpractical way to secure and support
the workpiece to a stable platform. Holding the work by hand
or against your body leaves it unstable and may lead to loss of
control
Avoid bouncing the wheel or giving it rough treatment. Ifthis
occurs, stop the tool and inspect the wheel for cracks or flaws.
Always handle and store wheels in a careful manner.
Never cut into area that may contain electrical wiring or
piping. Serious injury may result.
Do not operate this tool for long periods of time. Vibration
caused by the operating action of this tool may cause permanent
injury to fingers, hands, and arms. Use gloves to provide extra
cushion, take frequent rest periods, and limit daily time of use.
Air vents often cover moving parts and should be avoided.
Loose clothes, jewelry or long hair can be caught in moving parts.
When not in use, place grinder on a stable surface where it
will not move inadvertantly, roll or cause a tripping or falling
hazard. Serious personal injury may result.
An extension cord must have adequate wire size (AWG
or American Wire Gauge) for safety. The smaller the gauge
number of the wire, the greater the capacity of the cable, that is
16 gauge has more capacity than 18 gauge. An undersized cord
will cause a drop in line voltage resulting in loss of power and
overheating. When using more than one extension to make up the
total length, be sure each individual extension contains at least the
minimum wire size. The following table shows the correct size to
use depending on cord length and nameplate ampere rating. If in
doubt, use the next heavier gauge. Thesmaller the gauge number,
the heavier the cord.
Minimum Gauge for Cord Sets
Total Lengthof Cord
Volts
in Feet (meters)
Ampere Rating
120V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7)
240V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
More Not More
AWG
Than Than
0 6 18 16 16 14
6 10 18 16 14 12
10 12 16 16 14 12
12 16 14 12 NotRecommended
_ WARNING: ALWAYS use safety glasses. Everyday eyeglasses are
NOTsafety glasses. Also use face or dust mask if cutting operation is
dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT_
ANSI Z8 7.1 eye protection (CAN/CSA Z94.3),
ANSI $12.6 ($3.19) hearing protection,
NIOSH/OSHA/MSHA respiratory protection.
A WARNING: Some dust created by power sanding, sawing,
grinding, drilling, and other construction activities contains chemicals
known to the State of California to cause cancer, birth defects or other
reproductive harm. Some examples of these chemicals are:
lead from lead-based paints,
crystalline silica from bricks and cement and other masonry
products, and
arsenic and chromMm from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
work in a well ventilated area, and work with approved safety
equipment, such as those dust masks that are specially designed to
filter out microscopic particles.
Avoid prolonged contact with dust from power sanding,
sawing, grinding, drilling, and other construction activities.
Wear protective clothing and wash exposed areas with
soap and water. Allowing dust to get into your mouth, eyes, or
lay on the skin may promote absorption of harmful chemicals.
_ WARNING: Use of this tool can generate and/or disperse dust,
which may cause serious and permanent respiratory or other
injury. Always use NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure. Direct particles away from face
and body.
WARNING: Always wear proper personal hearing protection
that conforms to ANSI $12.6 ($3.19) during use. Under some
conditions and duration of use, noise from this product may
contribute to hearing loss.
The label on your tool may include the following symbols. The
symbols and their definitions are as follows:
V ............ volts
Hz.......... hertz
min ........ minutes
---. .... direct current
(_).......... Class I Construction
(grounded)
[] .......... Class II Construction
(double insulated)
.../min... per minute
IPM ........ impacts per minute
SPM ......strokes per minute
sfpm ...... surface feet per
minute
A............. amperes
W............ watts
"_ ......... alternating current
......... alternating or direct
current
no .......... no load speed
n............ rated speed
G .......... earthing terminal
A ........... safety alert symbol
BPM ...... beats per minute
RPM ...... revolutions per
minute
SAVE THESE INSTRUCTIONS FOR
FUTURE USE
Motor
Be sure your power supply agrees with the nameplate marking.
Voltage decrease of more than 10% will cause loss of power and
overheating. DEWALT tools are factory tested; if this tool does not
operate, check power supply.
FAMILIARIZATION
Large Angle Grinders and Large Angle Sanders are designed for
heavy material removal in extended use applications. The following
grinders and sanders are described in this manual:
DWE4817 7" Angle Grinder double insulated 8,500 rpm
DWE4819 9" Angle Grinder double insulated 6,800 rpm
FIG. 1
B
COMPONENTS (FIG. 1)
WARNING: Never modify the power tool or any part of it. Damage
or personal injury could result.
A. Trigger switch
B. Spindle lock button
C. Side handle
D. Spindle
INTENDED USE
This grinder is designed for
E. Soft mount
F.Trigger lock off button
G. Wheel guard
H. Lock-on button
professional grinding, sanding, wire
brushing, polishing or abrasive, cutting-off applications.
DO NOT use under wet conditions or in presence of flammable
liquids or gases.
This grinder is a professional power tool. DO NOT let children come
into contact with the tool. Supervision is required when inexperienced
operators use this tool.
Features
SWITCH (FIG. 1)
This tool is controlled by a trigger switch (A). A lock-on button (H)
provides increased comfort in extended use applications.
ROTATING GEAR CASE
For applications in which a tool will be dedicated for uses in edge
grinding and finishing work, the gear case may be rotated 90 ° left or
right of its original position. See page 9 for instructions on rotating
the gear case.
SPINDLE LOCK (FIG. 2}
The spindle lock pin is provided to prevent the FIG.2 B
spindle from rotating when installing or
removing wheels. Operate the spindle lock pin
only when the tool is turned off and unplugged
from the power source. To engage the lock,
depress the spindle lock button (B)and rotate
the spindle until you are unable to rotate it
further.
_, CAUTION: Never depress the spindle lock button while the grinder
is running. Never turn on the grinder while the spindle lock button is
depressed. Damage to your tool or personal injury may result.
SOFT MOUNT
The grinder is equipped with a soft mount, enabling easy wheel
installation and removal.
Accessories and Attachments
It is important to choose the correct guards, backing pads
and flanges to use with grinder accessories. See the chart on
pages 11-13 for information on choosing the correct accessories.
A WARNING: Accessories must be rated for at least the speed
recommended on the tool warning label Wheels and other
accessoriesrunningoverratedspeedcanflyapartandcauseinjury.
Accessoryratingsmustalwaysbeabovetoolspeedasshownon
toolnameplate.
A'n'AC HMENTS
Attachments designed specifically for this grinder can be
purchased through DEWALT dealers and DEWALT Factory Service
centers.
9" Type 27 guard
9" Type 28 guard
7" Type 27 guard
6" Type 11 Flaring cup guard with flange
4" Type 11 Flaring cup guard with flange
Type 11 Flaring cup wheel backing flange
Type 1 Flange set
7" Type 1 Guard
Grinding backing flange
Clamp nut
Wheel Wrench
Soft mount spindle protector
ASSEMBLY AND ADJUSTMENTS
D284939
D284938
D284937
D284936
D284934
608368-00
D284932
D284931
54339-00
22191-00
61820-01
445928-01
A WARNING: To reduce the risk of injury, turn unit off
and disconnect it from power source before installing and
removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
Attaching the Side Handle (Fig. 3)
Attach the side handle (C) to one of the two FIG.3
side handle ports (H). /
Rotating the Gear Case
(Fig. 4)
1. Remove guard and flanges from FIG.4
tool.
2. Remove the four corner screws
attaching the gear case to motor
housing.
3. Separate the gear case from
motor housing, not more than
1/4" (6.35 mm), rotate the gear
case head to desired position.
NOTE: If the gear case and motor housing become separated
by more than 1/4" (6.35 mm), the tool must be serviced and
re-assembled by a DEWALT service center. Failure to have the tool
serviced may cause brush, motor and bearing failure.
4. Re-install screws to attach the gear case to the motor housing.
Tighten screws to 20 in./Ibs, torque. Overtightening could cause
screws to strip.
OPERATION
A WARNING: To reduce the risk of injury, turn unit off
and disconnect it from power source before installing and
removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
Power Source
Plug the large angle grinder into a dedicated electrical circuit.
Operating this tool on a circuit with other tools will decrease tool
performance.
Switch (Fig. 5)
WARNING: Ensure that the trigger switch is in the off position
before connecting the tool to a power source or after apower failure.
Hold the side handle and rear handle firmly to maintain control of tool
at start up and during use.
TRIGGER OPERATION WITH LOCK-ON FEATURE
To turn the tool on, depress lock off FIG.5 F
button (F) and then depress the trigger
switch (A). The lock-on button (H) will
remain depressed and tool will remain on.
To turn the tool off, depress and release
trigger. The lock pin button will pop out,
permitting the trigger to disengage and H
causing the tool to turn off.
NOTE" Allow the tool to reach full speed before touching tool to work
surface. Lift the tool from the work surface before turning the tool off.
ACAUTION: Make sure the wheel has come to a complete stop
before setting the tool down.
REMOVAL OF LOCK-ON FEATURE (FIG. 1)
The lock-on button (H) can be permanently removed without
compromising compliance with regulatory agencies shown on the
tool's nameplate. Removal of the lock pin must be done by a DEWALT
Service Center.
Mounting and Using Depressed Center
Grinding Wheels and Sanding Flap Discs
IMPORTANT INFORMATION ABOUT GUARDS (FIG. 6)
Guards must be used with all grinding FIG.6
wheels, sanding flap discs, wire brushes
and wire wheels. The tool may be used GRINDING
without a guard only when sanding with WHEEL
conventional sanding discs. DEWALT SURFACE
models DWE4517 and DWE4519 are
provided with a guard intended for use with
depressed center wheels (Type 27), and
hubbed grinding wheels (Type 27). The
same guard is designed for usewith sanding LiP
flap discs, wire brushes and wire wheels.
Grinding and cutting with wheels other
than Type 27, 28 and 29 require different accessory guards not
included with the tool. Mounting instructions for these accessory
guards are included in the accessory package.
A WARNING: When using a grinding wheel with a Type 27, 28, or
29 guard, be sure that the bottom surface of the grinding wheel is
inside the guard lip.
MOUNTING AND REMOVING GUARD (FIG. 7)
1. Open the guard latch (I),and align the lugs with slots on the gear
case cover. Position the guard facing backward, as shown.
2. Push the guard down until the guard lugs engage and rotate freely
in the groove on the gear case hub.
10
3.Withtheguardlatchopen,rotatethe FIG.7
guardintothe desiredworking
positionthat providesmaximum
protectiontotheuserasshown.
4.Closetheguardlatchtosecurethe
guardonthegearcase.Youshould
beunableto rotatetheguardby
handwhenthelatchisclosed.Do
notoperatethegrinderwithaloose
guardortheguardlatchinopen
position.
5.Toremovetheguard,followthe
procedureaboveinreverseorder.
NOTE"Theguardispre-adjustedto
thediameterofthegearcasehubat
thefactory.If,aftera periodoftime,
theguardbecomesloose,tightenthe
adjustingscrew(J)withclampin the
closedposition.
NOTICE: Do not tighten the adjusting
screw with the guard latch in open
position. Undetectable damage to the
guard or the mounting hub may result. "J
Mounting and Removing Hubbed Wheels
Hubbed wheels install directly on the 5/8"-11 threaded spindle.
1. Thread the wheel on the spindle by hand, seating the wheel
against the soft mount.
2. Depress the spindle lock button and use a wrench to tighten the
hub of the wheel.
3. Reverse the above procedure to remove the wheel.
Sanding Flap Discs
soft mount
445928-01
Type 27 guard
D284937 7"
D284939 9"
hubbed sanding
flap disc
soft mount
445928-01
Type 27 guard
D284937 7"
D284939 9"
backing flange
54339-00
non-hubbed sanding
flap disc
clamp nut
22191-00
NOTE: Wheel size must match guard size; i.e., a new 7" wheel may
not be used with a 9" guard. The bottom surface of wheel must be
inside the bend of the guard lip.
11
softmount
445928-01
Type27guard
D2849377"
D2849399"
Type27hubbedwheel
softmount
445928-01
Type28guard
D2849389"
Type28hubbedwheel
Grinding Wheels
soft mount
445928-01
Type 27 guard
D284937 7"
D284939 9"
backing flange
54339-00
Type 27 non-hubbed
wheel
clamp nut
22191-00
soft mount
445928-01
Type 28 guard
D284938 9"
backing flange
54339-00
Type 28 non-hubbed
wheel
clamp nut
22191-00
Sanding Discs
soft mount
445928-01
rubber backing pad
sanding disc
clamp nut
NOTE: Wheel size must match guard size; i.e., a new 7" wheel may not be used with a
9" guard. The bottom surface of wheel must be inside the bend of the guard lip.
12
Wire Wheels
soft mount
445928-01
Type 27 guard
D284937 7"
D284939 9"
wire cup brush
soft mount
445928-01
Type 27 guard
D284937 7"
D284939 9"
wire wheel
Flaring Cup Stones Cutting Wheels
Type 11 flaring cup
guard
D284934 4"
D284936 6"
backing flange
608368-00
flaring cup stone
Type 1 guard
D284931
backing flange
608370-00
abrasive cutting wheel
clamp nut
608463-00
Type 1 guard
D284931
backing flange
608370-00
diamond cutting wheel
clamp nut
608463-00
NOTE: Wheel size must match guard size; i.e., a 7" wheel
may not be used with a 9" guard.
13
i_WARNING: Failure to properly seat the wheel against the soft
mount before turning the tool on may result in damage to the tool or
the wheel
MOUNTING NON-HUBBED WHEELS (FIG. 8)
Depressed center, Type 27 grinding wheels
must be used with available accessory flanges.
See the chart on pages 11-13 of this manual for
more information.
1. Install the metal backing flange (K) on
spindle (F)against the soft mount.
2. Place wheel against the backing flange,
centering the wheel on the backing flange
pilot.
3. While depressing the spindle lock button,
thread the clamp nut (L) on spindle, piloting
the raised hub on clamp nut in the center of
grinding wheel.
4. Tighten the clamp nut with a wrench.
5. Reverse the above procedure to remove the
wheel.
FIG. 8
K
SURFACE GRINDING WITH GRINDING WHEELS (FIG. 9)
1. Allow the tool to reach full speed before touching tool to work
surface.
2. Apply minimum pressure to work surface, FIG.9
to allow the tool to operate at high speed.
3. Maintain a 20°to 30°angle between the tool
and work surface.
4. Continuously move the tool in aforward 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 setting it down.
14
EDGE GRINDING WITH GRINDING WHEELS
WARNING: Wheels used for cutting and edge grinding may break
or kick back if they bend or twist while the tool is being used to do
cut-off work or deep grinding. Toreduce 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 wheel, use a closed, Type 1 guard. 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 work surface, to allow the tool to
operate at high speed.
3. Protect yourself during edge finishing by directing the open side
of the guard away from you.
4. Move the tool continuously in a forward and back motion to avoid
creating gouges in the work surface.
5. Remove tool from work surface before turning the tool off. Allow
the tool to stop rotating before setting it down.
_, WARNING: Do not use edge grinding wheels for surface grinding
applications because edge grinding wheels are not designed for
side pressures encountered with surface grinding. Wheel breakage
and injury may result.
SURFACE FINISHING WITH SANDING FLAP DISCS (FIG. 10}
3. Allow the tool to reach full speed before touching tool to work
surface. FIG.10
2. Apply minimum pressure to work surface, to
allow the tool to operate at high speed.
3. Maintain a 5° to 10° angle between the tool
and work surface.
4.Continuouslymovethetoolinaforwardandbackmotiontoavoid
creatinggougesintheworksurface.
5.Removethetoolfromworksurfacebeforeturningtooloff.Allow
thetooltostoprotatingbeforesettingitdown.
Mounting and Using Sanding
Backing Pads
Sanding pads and sanding discs must be rated above minimum
accessory speed as shown on tool. Recommended sanding
backing pads and sanding discs are available at extra cost from
DEWALTservice centers and DEWALTdealers.
NOTE" Guard may be removed for sanding applications with backing
pads and sanding discs. Sanding flap discs are considered grinding
wheels by ANSI standards and require the use of a guard. (See
Mounting and Using Depressed Center Grinding Wheels and
Sanding Flap Discs).
MOUNTING SANDING BACKING PADS (FIG. 11)
i_ CAUTION: Proper guard must be re-installed for grinding wheel,
sanding flap disc, wire brush, or wire wheel applications after sanding
applications are complete.
1. Place or appropriately thread rubber FIG.11
backing pad (M) down to soft mount. O
N
2. Place the sanding disc (N) on the rubber
backing pad (M).
3. While depressing spindle lock, thread
clamp nut (O) on spindle, piloting the
raised hub on the clamp nut into the
center of sanding disc and backing pad.
4. Tighten the clamp nut with the proper
wrench.
5. To remove the wheel, reverse the above
procedure.
USING SANDING BACKING PADS (FIG. 12)
Choose the proper grit sandpaper for your application. Sandpaper
is available in various grits. Coarse grits yield faster material removal
rates and a rougher finish. Finer grits yield slower material removal
and a smoother finish.
Begin with coarser grit discs for fast, rough material removal. Move to
a medium grit paper and finish with a fine grit disc for optimal finish.
Coarse 16-30 grit
Medium 36-80 grit
Fine Finishing 100-120 grit
Very Fine Finishing 150-180 grit
1. Allow the tool to reach full speed before touching tool to work
surface.
2. Apply minimum pressure to work surface, allowing tool to operate
at high speed.
3. Maintain a 5°to 15° angle between the FIG.12
tool and work surface. The sanding
disc should contact approximately one
inch of work surface.
4. Move the tool constantly in a straight line to prevent burning and
swirling of work surface. Allowing the tool to rest on the work
surface without moving, or moving the tool in a circular motion
causes burning and swirling marks on the work surface.
5. Remove the tool from the work surface before turning the tool off.
Allow the tool to stop rotating before setting it down.
Mounting and Using Wire Brushes
and Wire Wheels
Wire brushes and wire wheels must be rated above minimum
accessory speed as shown on tool. Use only wire brushes and
15
wheelsprovidedwitha5/8"-11threadedhub.AType27guardis
requiredwhenusingwirebrushesandwheels.
i_,WARNING:Wear work gloves when handling wire brushes or
wheels. Wire brushes and wheels can become sharp.
MOUNTING WIRE BRUSHES AND WIRE WHEELS
1. Thread the wheel on the spindle by hand, seating the wheel
against the soft mount.
2. Depress the spindle lock button and use a wrench on the hub of
the wire brush or wheel to tighten the wheel.
3. To remove the wheel, depress the spindle lock button and use a
wrench on the hub of the wire brush or wheel to loosen it.
NOTE" Failure to properly seat the wheel hub against the soft mount
before turning the tool on may result in damage to the tool or wheel.
USING WIRE CUP BRUSHES AND WIRE FIG.13
WHEELS (FIG. 13)
Wire wheels and brushes can be used for
removing rust, scale and paint, and for
smoothing irregular surfaces.
1. Allow tool to reach full speed before 0°
touching tool to work surface.
2. Apply minimum pressure to work surface,
to allow the tool to operate at high speed.
3. Maintain a 5°to 10°angle between the tool
and work surface for wire cup brushes.
4. Maintain contact between the edge of
the wheel and the work surface with wire
wheels.
5. Continuously move the tool in a forward and back motion to
avoid creating gouges in the work surface. Allowing the tool to
rest on the work surface without moving, or moving the tool in a
circular motion causes burning and swirling marks on the work
surface.
6. Remove the tool from the work surface before turning the tool off.
Allow the tool to stop rotating before setting it down.
Mounting and Using Flaring Cup
(Type 11) Wheel
MOUNTING FLARING CUP WHEEL GUARD (FIG. 14)
it, WARNING: The flaring cup wheel guard is not included with this
tool Flaring cup wheels require proper flanges and guards. 4" flaring
cup wheel guard D284934 and 6" flaring cup wheel guard D284936
are available as accessories and include proper flange. Failure to use
the proper flange and guard can result in injury resulting from wheel
breakage and wheel contact. FIG.14
1. Install the guard as shown.
2. Guard body should be positioned
between the spindle and the operator to
provide maximum operator protection.
3. Securely tighten the two clamping
screws (P)supplied with the guard.
MOUNTING FLARING CUP WHEEL (FIG. 15)
1. Remove the soft mount (F).
2. Install the flaring cup wheel backing flange, aligning the flats on
spindle (Q)with the flats on backing flange (R).
3. Thread the flaring cup wheel on spindle by hand, seating wheel
against backing flange.
4. Depress the spindle lock button and tighten the wheel by hand.
5. To remove the wheel, reverse the above procedure.
16
FIG. 15
NOTICE: Failure to properly seat the wheel against backing flange
before turning the tool on may result in damage to the tool or the
wheel
NOTE: Adjust the guard skirt so that only 1/8" (3.17 mm) of the wheel
is exposed by loosening the bolts, allowing the guard to lengthen.
Tighten the guard skirt bolts securely before using the grinder.
USING A FLARING CUP WHEEL (FIG. 16}
Flaring cup wheels are designed for heavy material removal.
1. Allow the tool to reach full speed before touching tool to work
surface. FIG.16
2. Apply minimum pressure to work surface,
allowing the tool to operate at high speed.
3. Maintain a 5°to 10°angle between the tool
and the work surface.
4. Continuously move the tool in aforward 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 setting it down.
17
Mounting and Using Cutting
(Type 1) Wheels
Cutting wheels include diamond wheels and
abrasive discs. Abrasive cutting wheels for
metal and concrete use are available. Diamond
blades for concrete cutting can also be used.
i_ WARNING: A closed, cutting wheel guard
is not included with this tool. Cutting wheels
require proper flanges and guards. A 7" cutting
guard, D284931, is available as an accessory
and includes proper, matching flanges. Failure
to use proper flange and guard can result in
injury resulting from wheel breakage and wheel
contacL
FIG. 17
I
MOUNTING CLOSED (TYPE 1) GUARD (FIG. 17, 18)
1. Open the guard latch (I),and align the lugs with slots on the gear
case cover. Position the guard facing backward, as shown.
2. Push the guard down until the guard lug engages and rotates
freely in the groove on the gear case hub.
3. Rotate guard (G)into desired working position. The guard body
should be positioned between the spindle and the operator to
provide maximum operator protection.
4. Close the guard latch to secure the guard on the gear case cover.
You should be unable to rotate the guard by hand when the latch
is in closed position. Do not operate grinder with a loose guard or
guard latch in open position. FIG.18
NOTE: The guard is pre-adjusted to the
diameter of the gear case hub at the factory. If,
after a period of time, the guard becomes
loose, tighten the adjusting screw (J)with the
guard latch in the closed position.
NOTICE: Do not tighten adjusting screw with guard latch in open
position. Undetectable damage to guard or mounting hub may result.
MOUNTING cu'rI'ING WHEELS (FIG. 19)
1. Remove soft mount (E).
2. Install wheel backing flange, aligning flats on spindle (R)with flats
on backing flange (S).
3. Place the wheel on the backing flange, centering the wheel on the
backing flange pilot.
4. Install the clamp nut, ensuring that the wheel remains centered on
the backing flange.
5. Depress the spindle lock button and tighten clamp nut with
wrench.
6. Reverse the above procedure to remove the wheel.
FIG.19
USING CUTTING WHEELS (FIG. 20)
,_,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
injury may result.
1. Allow tool to reach full speed before touching tool to work
surface.
2. Apply minimum pressure to work surface, FIG.20
allowing tool to operate at high speed.
3. Once you begin a cut, maintain the angle of
the cutting wheel to the work surface. This will
keep you from bending the wheel which could
result in wheel breakage and injury.
4. Remove the tool from work surface before
turning tool off. Allow the tool to stop rotating
before setting it down.
MAINTENANCE
WARNING: To reduce the risk of injury, turn unit off
and disconnect it from power source before installing and
removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
Cleaning
A WARNING: Blow dirt and dust out of all air vents with clean, dry air
at least once a week. To minimize the risk of eye injury, always wear
ANSI Z87.1 approved eye protection when performing this.
_ WARNING: Never use solvents or other harsh chemicals for
cleaning the non-metallic parts of the tool These chemicals may
weaken the plastic materials used in these parts. Use a cloth
dampened only with water and mild soap. Never let any liquid get
inside the tool,"never immerse any part of the tool into a liquid.
Accessories
/_ WARNING: Since accessories, other than those offered by
DEWALT, have not been tested with this product, use of such
accessories with this tool could be hazardous. To reduce the risk of
injury, only DEWALT recommended accessories should be used with
this product.
18
Recommendedaccessoriesforusewithyourtoolareavailableat
extracostfromyourlocaldealerorauthorizedservicecenter.Ifyou
needassistanceinlocatinganyaccessory,pleasecontactDE-:WALT
IndustrialToolCo.,701EastJoppaRoad,Baltimore,MD21286,
call1-800-4-DEWALT(1-800-433-9258)orvisitourwebsite:www.
dewalt.com.
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance
and adjustment (including brush inspection and replacement) should
be performed by a DEWALT factory service center, a DEWALT
authorized service center or other qualified service personnel. Always
use identical replacement parts.
Three Year Limited Warranty
DEWALT will repair, without charge, any defects due to faulty
materials or workmanship for three years from the date of purchase.
This warranty does not cover part failure due to normal wear or tool
abuse. For further detail of warranty coverage and warranty repair
information, visit www.dewalt.com or call 1-800-4-DEWALT (1-800-
433-9258). This warranty does not apply to accessories or damage
caused where repairs have been made or attempted by others. This
warranty gives you specific legal rights and you may have other rights
which vary in certain states or provinces.
In addition to the warranty, DEWALT tools are covered by our:
1 YEAR FREE SERVICE
DEWALT will maintain the tool and replace worn parts caused by
normal use, for free, any time during the first year after purchase.
90 DAY MONEY BACK GUARANTEE
If you are not completely satisfied with the performance of your
DEWALT Power Tool, Laser, or Nailer for any reason, you can return
it within 90 days from the date of purchase with a receipt for a full
refund - no questions asked.
LATIN AMERICA" This warranty does not apply to products sold
in Latin America. For products sold in Latin America, see country
specific warranty information contained in the packaging, call the local
company or see website for warranty information.
FREE WARNING LABEL REPLACEMENT: If your warning labels
become illegible or are missing, call 1-800-4-D_:WALT (1-800-433-
9258) for a free replacement.
DWEXXXXX O°1230mml
ANGLEGRINDER
SER,
TO REDUCETHE RISK OF INJURY, USER MUST READINSTRUCTION MANUAL ALWAYS
WEAR EYE PROTECTION. USE ONLY ACCESSORIES RATED AT LEAST EQUAL TO THE
MAXIMUM SPEEO MARKEO ON THE TOOL ALWAYS USE PROPER GIJARD5 WHEN
GRINDING. ALWAYS USE PROFF_ ]_ESPIffATO_Y PROTECTION.
ELUSUARIOOEeELEERELMANUAL OEINS_RUCCIONES,CONELFI_ _EREOUCIRELRIES60
DE LESIONES.SIEMPRE LLEVEPROTECCIONOCU_R. SOLOUTILICEA(_CESORIOSCUYA
VELOCIDAO NOMINAL SEA AL MENOS EQU P,tALENTE A _ VFLOCIDAO MAXIMA INDICADA
EN LA HERRAMIENTA. U1]LICESIEMPRE LOS PROTECTORE$APROPIAO0$ CUANDO
REALICEOPERACIONE$DE PULIDO,LLEVESIEMPRE PROTECCIONR£SPIRATORIAAPROPIAOA.
POURREDUIRETO_ RISQUEDE DOMMAGES POURREDUIRE_UT RISQUEDE DOMMAG_
CDRPpRELS,/'UTILISA_UR DO_ LIRE LEMANUEL DE _UT]LISATEUR. PORTER
SYSTEMAT]QUEMENT UNE PROTECTIONOC_LA] R,E.UT]LISER EXCLUSIV_MEN[ )J_S
ACCESSOIRESDO_ LA V]T_SSE NOMI ALEEST E(tUIVALENTEOU SUPERIEUREI_ CELLEINDIQU_ESU_ L'OUTIL LrrlLISERSYsT_AATIQUEMENT DES CARTERSAPPROPR S
POURMEULER.POR_ER SYSTEMATIQUEMENT UN SYSTEME DE PROTECTIONDE VOLES
RESPIRATOIR_ ADEQUATES.
_WALT I_O_STRIAL TOOL CO_ 8AL_OR_, MO _ USA
FOR SERVICE I_FO_MATIO_, CALL _O_4_WALT www.OeW_*LT_em
19
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DeWalt DWE4517 Manuel utilisateur

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