DeWalt DW752R User manual

DW752R

2
Copyright DEWALT
English (original instructions) 3
Français (traduction de la notice d’instructions originale) 9
(ﺓﻲﻠﺻﻷا تﺎﻤﻴﻠﻌﺘﻟا ﻦﻋ ﻢﺟﺮﺘﻣ):ﺔﻴﺑﺮﻌﻟﺍ 15

1
Figure 1
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Figure 2
2 ﻞﻜﺷ
d a
a
c
b
i
Max 2mm

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Figure 3
3 ﻞﻜﺷ
Figure 4
4 ﻞﻜﺷ
c
gef
Max 2mm
h

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3
BENCH GRINDER
DW752R
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
DW752R-B5 DW752R-ZA
Voltage V 220–240 230
Power input W 373 373
Frequency Hz 50/60 50
No-load speed /min 2950 2950
Wheel diameter mm 150 150
Wheel thickness mm 15–17 15–17
Bore diameter mm 12.7–12.9 12.7–12.9
Grinder wheel speed m/s 35 35
Definitions: 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.
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

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4
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 Safety Instructions for
Bench Grinder
• Value of the thickness limit of wear of the
work rest is 1 mm.
• Always use proper guard with grinding
wheel. A guard protects operator from
broken wheel fragments.
• Accessories must be rated for at least the
speed recommended on the tool warning
label. Wheels and other accessories running
over the rated speed can fly apart and cause
injury.
• Do not use a grinding wheel that is
cracked or flawed in any way. Before using,
inspect recommended accessory for cracks or
flaws. If such a crack or flaw is evident, discard
the accessory.
• When starting the tool, let it run for one
minute. Never start the tool with a person
in line with the wheel. This includes the
operator.

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5
• Do not grind on the sides of grinding
wheels unless they are specifically
designed for that purpose.
• Do not overtighten wheel clamp nut. This
may crack the grinding wheel.
• Clean the cavity around the grinding wheel
periodically.
• Wear protective glasses.
• Do not use damaged or misshapen wheels
or brushes.
• The adjustment of the spark arrestor shall
be made frequently, so as to compensate
the wear of the wheel, keeping the
distance between the guard and the wheel
as small as possible, but in any case not
greater than 2mm;
• The adjustment of the work rest shall be
done gradually so as to compensate the
wear of the wheel, keeping the distance
between the work rest and the wheel
as small as possible, but in any case not
greater than 2mm.
• Allow the tool to cool down after a
continuous use of 20 minutes (S2 20min).
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.
Markings on Tool
The following pictograms are shown on the tool:
Read instruction manual before use.
Wear eye protection.
Wear ear protection.
S2 20min The short-time duty is 20min.
DATE CODE POSITION (FIG. 1)
The date code (i), which also includes the year of
manufacture, is printed into the housing.
Example:
2014 XX XX
Year of Manufacture
Package Contents
The package contains:
1 Bench grinder
1 Wheel
2 Pairs of tool rests
2 Pairs of spark guards
2 Pairs of mounting brackets
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 (fig. 1)
WARNING: Never modify the power
tool or any part of it. Damage or
personal injury could result.
a. Spark guard
b. Switch
c. Tool rest
INTENDED USE
This bench grinder is ideal for use in sharpening
chisels, axes and other wood-cutting tools. It is also
useful for repairing tips on screwdrivers and drill bits
or for removing excess metal burrs from pieces of
cut metal. With the proper accessories, this tool
can be used for cleaning metal surfaces using a
wire brush or for buffing and polishing using a cloth
wheel. Never use this bench grinder for cut-off
operations.
DO NOT use under wet conditions or in presence of
flammable liquids or gases.
This grinder is professional power tool. 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.

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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 EN 60745; 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
extension cable suitable for the power input of this
tool (see Technical Data). The minimum conductor
size is 1 mm2; the maximum length is 30 m.
When using a cable reel, always unwind the cable
completely.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing set-
ups or when making repairs. Be sure
the trigger switch is in the OFF position.
An accidental start-up can cause injury.
Bench Mounting
1. Mark the position of the four mounting holes
provided in the base of the machine on the
workbench.
2. Drill appropriate sized hole at each of the
marked positions.
3. Place the machine on the workbench and insert
a 6mm hex head bolt with washer through
each mounting hole in the base and into each
of the holes drilled in the workbench.
4. Place a nut on each of the bolts and securely
tighten the nuts.
Mounting of Spark Guard (fig. 2)
The spark guard offers additional protection from
sparks and must be used whenever possible.
NOTE: Spark guards are not designed to replace
safety glasses.
1. Loosen screw (d) (do not remove it).
2. Slide spark guard (a) onto bracket.
3. Position the spark guard at a distance of
approx. 2mm from the grinding wheel. Tighten
screw (d).
NOTE: Regularly check the distance between
spark guard and the grinding wheel and adjust,
if necessary. Replace the grinding wheel if spark
guard (a) can no longer be adjusted to the maximum
distance of 2mm.
Installing Tool Rest (fig. 3)
WARNING: Use the washers and
screws supplied. Longer screws may
interfere with the movement of the
grinding wheel.
1. Use the supplied bolts, washers, spacers and
lock nuts to secure the tool rests (c) in place.
2. Position the tool rest at a distance of
approximately 2mm from the grinding wheel.
Regularly check the distance between tool
rest (c) and the grinding wheel and adjust, if
necessary.
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing set-
ups or when making repairs. Be sure
the trigger switch is in the OFF position.
An accidental start-up can cause injury.
WARNING: Never use a bench grinder
if it is not firmly fastened to a work
bench or rigid frame. Before turning the
grinder on, put on safety glasses.

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7
Turn on the grinder and allow it to reach full speed
(2950/min). Hold the workpiece firmly and against
the tool rest. Hold very small pieces with pliers or
other suitable clamps. Feed the work smoothly
and evenly into the grinding wheel. Move the work
slowly and avoid jamming the work against the
wheel. As the wheel tends to slow down you should
occasionally release the pressure to let the wheel
return to full speed. Grind only on the face of the
grinding wheel and never on the side. (Some wheels
are designed for side grinding and will say so on
their instruction sheets).
Switch
The switch is located on the front of the grinder, on
the base. To turn the tool on depress the side of the
rocker switch on the top side, marked “1”. To turn
off the grinder, depress the base side of the rocker
switch, marked “O”.
Changing Accessories (fig. 4)
WARNING: Do not use a damaged
grinding wheel.
1. Remove the guard cover (f) by loosening (not
removing) the three screws (h).
2. Remove the clamping nut (e) with a spanner.
3. Remove clamping flange (g) and grinding wheel.
4. Mounting new grinding wheel in reversed order.
5. Switch on the machine and let the wheel run
with no load for one minute to check for cracks.
MAINTENANCE
Your DEWALT power tool has been designed to
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular cleaning.
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing set-
ups or when making repairs. Be sure
the trigger switch is in the OFF position.
An accidental start-up can cause injury.
Lubrication
Your power tool requires no additional lubrication.
Cleaning
WARNING: Blow dirt and dust out of
the main housing with dry air as often as
dirt is seen collecting in and around the
air vents. Wear approved eye protection
and approved dust mask when
performing this procedure.
WARNING: Never use solvents or
other harsh chemicals for cleaning the
non-metallic parts of the tool. These
chemicals may weaken the 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.
Optional 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.
Consult your dealer for further information on the
appropriate accessories.
Protecting the Environment
Separate collection. This product must
not be disposed of with normal
household waste.
Should you find one day that your DEWALT product
needs replacement, or if it is of no further use to you,
do not dispose of it with household waste. Make this
product available for separate collection.
Separate collection of used products and
packaging allows materials to be
recycled and used again. Re-use of
recycled materials helps prevent
environmental pollution and reduces
the demand for raw materials.
Local regulations may provide for separate collection
of electrical products from the household, at
municipal waste sites or by the retailer when you
purchase a new product.

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8
DEWALT provides a facility for the collection and
recycling of DEWALT products once they have
reached the end of their working life. To take
advantage of this service please return your product
to any authorised repair agent who will collect them
on our behalf.
You can check the location of your nearest
authorised repair agent by contacting your local
DEWALT office at the address indicated in this
manual. Alternatively, a list of authorised DEWALT
repair agents and full details of our after-sales
service and contacts are available on the Internet at:
www.2helpU.com.