Hilti DAG 700-P User manual

DAG 700-P
Operating instructions en
Mode d’emploi fr
Manual de instrucciones es
Manual de instruções pt
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

1
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

2
3
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

4
5
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

6
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

7
8
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

This Product is Certified
Ce produit est homologué
Producto homologado por
Este produto está registrado
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

ORIGINAL OPERATING INSTRUCTIONS
DAG 700
ತ
P angle grinder
It is essential that the operating instruc-
tions are read before the power tool is op-
erated for the first time.
Always keep these operating instructions
together with the power tool.
Ensure that the operating instructions are
with the power tool when it is given to
other persons.
Contents Page
1. General information 1
2. Safety instructions 2
3. Description 7
4. Technical data 9
5. Before use 9
6. Operation 11
7. Care and maintenance 12
8. Insert tools, accessories 13
9. Troubleshooting 13
10. Disposal 13
11. Manufacturer’s warranty - tools 14
1These numbers refer to the corresponding illustra-
tions. The illustrations can be found on the fold-out
cover pages. Keep these pages open while studying
the operating instructions.
In these operating instructions, the designation “the
power tool” always refers to the DAG 700-P angle
grinder.
Parts, operating controls and indicators 1
@
Clamping nut
;
Outer clamping flange for flat discs
=
Flat disc
%
Inner clamping flange for flat discs
&
Offset disc
(
Clamping flange for offset discs
)
Keyed locating lug
+
Guard
§
Spindle
/
Adjusting screw
:
Clamping lever
·
Steadying rib
$
Threaded bushing for grip
£
Drive spindle lockbutton
|
Side handle
¡
Lockable on / off switch
Q
Wrench
1. General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
serious bodily injury or fatality.
WARNING
Draws attention to a potentially dangerous situation
that could lead to serious personal injury or fatality.
CAUTION
Draws attention to a potentially dangerous situation
that could lead to slight personal injury or damage to
the equipment or other property.
NOTE
Draws attention to an instruction or other useful
information.
1.2 Explanation of the pictograms and other
information
Warning signs
General
warning
Warning:
electricity
en
1
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

Obligation signs
Wear eye
protection
Wear a hard
hat
Wear ear
protection
Wear
protective
gloves
Wear
breathing
protection
Symbols
Read the
operating
instructions
before use
Return waste
material for
recycling.
Volts Amps
Hertz Alternating
current
Rated speed
Revolutions
per minute
Diameter Double
insulated
Location of identification data on the power tool
The type designation and serial number can be found
on the type identification plate on the machine or tool.
Make a note of this data in your operating instructions
and always refer to it when making an enquiry to your
Hilti representative or service department.
Type:
Generation: 01
Serial no.:
2. Safety instructions
2.1 General Safety Rules
a) Warning! Read and understand all instruc-
tions.Failure to follow all instructions listed below
may result in electric shock, fire and/or serious
personal injury. SAVE THESE INSTRUCTIONS.
2.1.1 Work Area
a) Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
b) Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
c) Keep bystanders, children and visitors away
while operating a power tool. Distractions can
cause you to lose control.
2.1.2 Electrical Safety
a) Double-Insulated tools are equipped with a po-
larized plug (one blade is wider than the other).
This plug will fit in a polarized outlet only one
way. If the plug does not fit fully in the outlet,
reverse the plug. If it still does not fit, contact
a qualified electrician to install a polarized out-
let. Do not change the plug in any way. Double
Insulation eliminates the need for the three-wire
en
2
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

grounded power cord and grounded power supply
system.
b) Avoid body contact with grounded surfaces such
as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your
body is grounded.
c) Don’t expose power tools to rain or wet condi-
tions. Water entering a power tool will increase
the risk of electric shock.
d) Do not abuse the cord. Never use the cord
to carry the tools or pull the plug from an
outlet. Keep cord away from heat, oil, sharp
edges or moving parts. Replace damaged cords
immediately. Damaged cords increase the risk
of electric shock.
e) When operating a power tool outside, use an
outdoor extension cord marked “W-A” or “W”.
These cords are rated for outdoor use and reduce
the risk of electric shock.
2.1.3 Personal Safety
a) Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use tool while 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) Dress properly. Do not wear loose clothing or
jewelry. Contain long hair. Keep your hair,
clothing and gloves away from moving parts.
Loose clothes, jewelry or long hair can be caught
in moving parts.
c) Avoid accidental starting. Be sure switch is
off before plugging in. Carrying tools with your
finger on the switch or plugging in tools that have
the switch on invites accidents.
d) Remove adjusting keys or switches before turn-
ing the tool on. A wrench or a key that is left
attached to a rotating part of the tool may result
in personal injury.
e) Do not overreach. Keep proper footing and bal-
ance at all times. Proper footing and balance
enables better control of the tool in unexpected
situations.
f) Use safety equipment. Always wear eye protec-
tion.Dust mask, non-skid safety shoes, hard hat
or hearing protection must be used for appropri-
ate conditions.
2.1.4 Tool Use and Care
a) Use clamps or other practical way to secure
and support the workpiece to a stable platform.
Holding the work by hand or against your body is
unstable and may lead to loss of control.
b) Do not force tool. Use the correct tool for your
application. The correct tool will do the job better
and safer at the rate for which it is designed.
c) Do not use tool if switch does not turn it on or
off. Any tool that cannot be controlled with the
switch is dangerous and must be repaired.
d) Disconnect the plug from the power source be-
fore making any adjustments, changing acces-
sories, or storing the tool. Such preventive safety
measures reduce the risk of starting the tool ac-
cidentally.
e) Store idle tools out of reach of children and
other untrained persons. Tools are dangerous in
the hands of untrained users.
f) Maintain tools with care. Keep cutting tools
sharp and clean. Properly maintained tools with
sharp cutting edges are less likely to bind and are
easier to control.
g) Check for misalignment or binding of moving
parts, breakage of parts and any other con-
dition that may affect the tool’s operation. If
damaged, have the tool serviced before using.
Many accidents are caused by poorly maintained
tools.
h) Use only accessories that are recommended by
the manufacturer for your model. Accessories
that may be suitable for one tool may become
hazardous when used on another tool.
2.1.5 Service
a) Tool service must be performed only by qual-
ified repair personnel. Service or maintenance
performed by unqualified personnel could result
in a risk of injury.
b) When servicing a tool, use only identical re-
placement parts. Follow instructions in the
Maintenance section of this manual. Use of
unauthorized parts or failure to follow Mainte-
nance Instructions may create a risk of electric
shock or injury.
en
3
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

2.2 Specific Safety Rules
a) Always use proper guard with grinding wheel.
A guard protects operator from broken wheel
fragments.
b) Accessories must be rated for at least the speed
recommended on the tool warning label. Wheels
and other accessories running over rated speed
can fly apart and cause injury.
c) Hold tool by insulated gripping surfaces when
performing an operation where the cutting tool
may contact hidden wiring or its own cord.
Contact with a “live” wire will make exposed metal
parts of the tool “live” and shock the operator.
2.3 Additional safety instructions
2.3.1 Safety warnings common for grinding,
sanding, wire brushing or 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) Operations such as polishing are not recom-
mended to be performed with this power tool.
Operations for which the power tool was not de-
signed may create a hazard and cause personal
injury.
c) Do not use accessories which are not specif-
ically 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) 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.
g) Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, wire brush for
loose or cracked wires. If power tool or acces-
sory 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 acces-
sories will normally break apart during this test
time.
h) Wear personal protective equipment. Depend-
ing on application, use face shield, safety gog-
gles or safety glasses. As appropriate, wear
dust mask, hearing protectors, gloves and work-
shop 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 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.
k) Position the cord clear of the spinning acces-
sory. 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 acces-
sory 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.
en
4
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

p) Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
2.3.2 Further safety instructions for all
operations
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 power 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 reactions or kickback forces, if
proper precautions are taken.
b) Never place your hand near the rotating acces-
sory. Accessory may kickback over your hand.
c) Do not position your body in the area where
power tool will move if kickback occurs. Kick-
back 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.
2.3.3 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 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 opera-
tor from broken wheel fragments and accidental
contact with wheel.
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 ap-
plied 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.
2.3.4 Additional safety warnings specific for
abrasive cutting-off operations
a) Do not “jam” the cut-off wheel or apply ex-
cessive pressure. Do not attempt to make an
excessive depth of cut. Overstressing the wheel
increases the loading and susceptibility to twist-
ing 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
en
5
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

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 work-
piece. Let the wheel reach full speed and care-
fully 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 kick-
back. 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 kick-
back.
2.3.5 Safety warnings specific for sanding
operations
Do not use excessively oversized sanding disc pa-
per. Follow manufacturers recommendations, when
selecting sanding paper. Larger sanding paper ex-
tending beyond the sanding pad presents a laceration
hazard and may cause snagging, tearing of the disc
or kickback.
2.3.6 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
load and centrifugal forces.
2.3.7 Personal safety
a) Wear ear protectors. Exposure to noise can cause
hearing loss.
b) Always hold the power tool securely with both
hands on the grips provided. Keep the grips dry,
clean and free from oil and grease.
c) Breathing protection must be worn if the power
tool is used without a dust removal system for
work that creates dust.
d) Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
e) Avoid touching rotating parts. Switch the power
tool on only after bringing it into position at the
workpiece. Touching rotating parts, especially
rotating insert tools, may lead to injury.
f) Always lead the supply cord and extension cord
away from the power tool to the rear while
working. This helps to avoid tripping over the
cord while working.
g) Children must be instructed not to play with the
power tool.
h) The power tool is not intended for use by chil-
dren, by debilitated persons or those who have
received no instruction or training.
i) WARNING: Some dust created by grinding,
sanding, cutting and drilling contains chem-
icals known to cause cancer, birth defects,
infertility or other reproductive harm; or seri-
ous and permanent respiratory or other injury.
Some examples of these chemicals are: lead from
lead-based paints, crystalline silica from bricks,
concrete and other masonry products and natural
stone, arsenic and chromium from chemically-
treated lumber. Your risk from these exposures
varies, depending on how often you do this type
of work. To reduce exposure to these chemicals,
the operator and bystanders should work in a
well-ventilated area, work with approved safety
equipment, such as respiratory protection ap-
propriate for the type of dust generated, and
designed to filter out microscopic particles and
direct dust away from the face and body. Avoid
prolonged contact with dust. Wear protective
clothing and wash exposed areas with soap and
water. Allowing dust to get into your mouth,
eyes, or to remain on your skin may promote
absorption of harmful chemicals.
2.3.8 Power tool use and care
a) Grinding discs must be stored and handled care-
fully in accordance with the manufacturer’s in-
structions.
b) Check that the grinding disc is fitted in accor-
dance with the manufacturer’s instructions.
c) If use of a spacer ring or other intermediate part
is specified and the part is supplied with the
grinding disc, check to ensure that the part is
fitted.
en
6
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

d) Never use the power tool without the guard.
e) The workpiece must be fixed securely in place.
f) Do not use cutting discs for grinding.
g) After disc breakage, or if the power tool is
dropped, falls or suffers other mechanical dam-
age, it must be checked at a Hilti Service Center.
h) Take steps to ensure that flying sparks from
the power tool do not present a hazard, i.e. by
striking yourself or other persons. Adjust the
position of the guard accordingly.
i) In case of an interruption in the electric supply:
Switch the power tool off and unplug the supply
cord. This will prevent accidental restarting when
the electric power returns.
2.3.9 Electrical safety
a) Before beginning work, check the working area
(e.g. using a metal detector) to ensure that
no concealed electric cables or gas and water
pipes are present. External metal parts of the
power tool may become live, for example, when
an electric cable is damaged accidentally. This
presents a serious risk of electric shock.
b) Check the power tool’s supply cord at regular
intervals and have it replaced by a qualified
specialist if found to be damaged. If the power
tool’s supply cord is damaged it must be re-
placed with a specially-prepared supply cord
available from Hilti Customer Service. Check
extension cords at regular intervals and replace
them if found to be damaged. Do not touch the
supply cord or extension cord if it is damaged
while working. Disconnect the supply cord plug
from the power outlet. Damaged supply cords or
extension cords present a risk of electric shock.
c) Dirty or dusty power tools which have been
used frequently for work on conductive mate-
rials should be checked at regular intervals at
a Hilti Service Center. Under unfavorable cir-
cumstances, dampness or dust adhering to the
surface of the power tool, especially dust from
conductive materials, may present a risk of elec-
tric shock.
d) When working outdoors with an electric tool
check to ensure that the tool is connected to the
electric supply by way of a ground fault circuit
interrupter (GFCI) with a rating of max. 30 mA
(tripping current). Use of a ground fault circuit
interrupter reduces the risk of electric shock.
e) Use of a ground fault circuit interrupter (GFCI)
with a maximum tripping current of 30 mA is
recommended.
2.3.10 Work area safety
a) Ensure that the workplace is well lit.
b) Ensure that the workplace is well ventilated.
Exposure to dust at a poorly ventilated workplace
may result in damage to the health.
2.3.11 Personal protective equipment
The user and any other persons in the vicinity must
wear ANSI Z87.1-approved eye protection, a hard
hat, ear protection, protective gloves and breathing
protection while the power tool is in use.
3. Description
3.1 Use of the product as directed
The power tool is an electrically-powered angle grinder for professional use in the construction industry. The
power tool is designed for cutting, grinding and brushing metal or mineral materials (concrete, stone, etc.)
without use of water.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
Working with metals: Cutting, rough grinding, fine grinding, brushing
Working with mineral materials: Cutting, slitting and grinding.
en
7
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

Use only grinding or cutting discs of max. 7" in diameter that are approved for use at a spindle speed of at
least 8500 /min and with a permissible peripheral speed of 80m/sec.
To avoid the risk of injury, use only genuine Hilti accessories and insert tools.
Working on materials hazardous to the health (e.g. asbestos) is not permissible.
Nationally applicable industrial safety regulations must be observed.
Modification of the power tool or tampering with its parts is not permissible.
The power tool may be operated only when connected to a power supply providing a voltage and frequency in
compliance with the information given on its type identification plate.
The working environment may be as follows: construction site, workshop, renovation, conversion or new
construction.
The power tool is designed for professional use and may be operated, serviced and maintained only by trained,
authorized personnel. This personnel must be informed of any special hazards that may be encountered. The
power tool and its ancillary equipment may present hazards when used incorrectly by untrained personnel or
when used not as directed.
Take the influences of the surrounding area into account. Do not use the power tool or appliance where there
is a risk of fire or explosion.
3.2 Grips
Side handle
3.3 Switches
Lockable on / off switch
3.4 Items supplied as standard include:
1 Power tool
1 Guard
1 Side handle
1 Clamping flange for offset discs
1 Clamping nut
1 Wrench
1 Operating instructions
1 Cardboard box
3.5 Using extension cords
Use only extension cords of a type approved for the application and with conductors of adequate cross section.
The power tool may otherwise loose performance and the extension cord may overheat. Check the extension
cord for damage at regular intervals. Replace damaged extension cords.
Recommended minimum conductor cross section and max. cord lengths
Conductor cross section 14 AWG 12 AWG
Mains voltage 110-120 V 75 ft 125 ft
Do not use extension cords with 16 AWG conductor cross section.
3.6 Using extension cords outdoors
When working outdoors, use only extension cords that are approved and correspondingly marked for this
application.
en
8
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

3.7 Using a generator or transformer
This power tool may be powered by a generator or transformer when the following conditions are fulfilled:
The unit must provide a power output in watts of at least twice the value printed on the type identification
plate on the power tool. The operating voltage must remain within +5% and -15% of the rated voltage at all
times, frequency must be in the 50 – 60 Hz range and never above 65 Hz, and the unit must be equipped with
automatic voltage regulation and starting boost.
Never operate other power tools or appliances from the generator or transformer at the same time. Switching
other power tools or appliances on and off may cause undervoltage and / or overvoltage peaks, resulting in
damage to the power tool.
3.8 Guard with cover plate
CAUTION
When grinding with straight grinding discs and cutting with cutting discs in metalworking applications,
use only the guard with cover plate. This is available as an optional accessory.
4. Technical data
Right of technical changes reserved.
Information about the power tool and its applications
Drive spindle thread (arbor size) ೖ೑೩"ತ11
Spindle length u೑೥"
Protection class Protection class II (double insulated)
5. Before use
WARNING
Never use the power tool without the guard.
5.1 Fitting the side handle
WARNING
The side handle must be fitted for all types of work.
The side handle may be screwed onto the left, right
or top side of the power tool.
5.2 Guard
CAUTION
The closed side of the guard must always face the
operator.
NOTE
The keyed locating lug on the guard ensures that only
a guard designed for use with the power tool can be
fitted. The keyed locating lug also prevents the guard
from coming into contact with the disc.
5.2.1 Fitting and removing the guard 2
1. Disconnect the supply cord plug from the power
outlet.
2. Fit the guard so that the locating lug engages in
the notch in the spindle collar and then rotate it
into the required working position.
3. Secure the guard by tightening the screw.
4. To remove the guard from the power tool, follow
the instructions for fitting the guard but carry out
the steps in the reverse order.
5.2.2 Adjusting the guard 3
1. Disconnect the supply cord plug from the power
outlet.
2. Slacken the screw.
3. Rotate the guard to the desired position.
4. Secure the guard by tightening the screw.
en
9
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

5.2.3 Fitting and removing the guard
(keyless) 4
NOTE
The guard is already set to the correct tension by way
of the adjusting screw. If the tension is found to be
too low when the guard is fitted, the adjusting nut can
be tightened slightly to increase the tension.
1. Disconnect the supply cord plug from the power
outlet.
2. Release the clamping lever.
3. Fit the guard onto the spindle collar so that
the keyed locating lug engages in the recess
provided.
4. Rotate the guard to the required position.
5. Secure the guard by closing the clamping lever.
6. To remove the guard from the power tool, follow
the instructions for fitting the guard but carry out
the steps in the reverse order.
5.2.4 Adjusting the guard (keyless) 5
1. Disconnect the supply cord plug from the power
outlet.
2. Release the clamping lever.
3. Rotate the guard to the desired position.
4. Close the clamping lever.
5.3 Fitting discs
DANGER
Check that the speed rating printed on the cutting
or grinding disc is equal to or higher than the rated
speed of the power tool.
DANGER
Check the condition of the grinding disc before
using it. Do not use discs that are broken, cracked
or damaged in any way.
DANGER
Do not use discs larger than 7" in diameter.
5.3.1 Fitting flat discs 6
CAUTION
When grinding with straight grinding discs and cut-
ting with cutting discs in metalworking applications,
use only the guard with cover plate. This is available
as an optional accessory.
WARNING
Use of a flat disc with an offset clamping flange
may lead to breakage of the disc.
1. Disconnect the supply cord plug from the power
outlet.
2. Clean the clamping flange for flat discs.
3. Place the clamping flange for flat discs on the
drive spindle.
4. Fit the flat disc.
5. Place the outer clamping flange for flat discs on
the drive spindle.
6. Screw on the clamping nut and tighten it.
7. CAUTIONDo not press the spindle lockbutton
before the drive spindle has stopped rotating.
Press the spindle lockbutton and hold it in this
position.
8. Use the wrench to tighten the clamping nut
securely and then release the spindle lockbutton.
5.3.2 Fitting offset discs 7
WARNING
Use of a flat disc with an offset clamping flange
may lead to breakage of the disc.
1. Disconnect the supply cord plug from the power
outlet.
2. Clean the clamping flange for offset discs.
3. Place the clamping flange for offset discs on the
drive spindle.
4. Fit the offset disc.
5. Screw on the clamping nut and tighten it.
6. CAUTIONDo not press the spindle lockbutton
before the drive spindle has stopped rotating.
Press the spindle lockbutton and hold it in this
position.
7. Use the wrench to tighten the clamping nut
securely and then release the spindle lockbutton.
en
10
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

6. Operation
NOTE
Adjust the position of the guard to suit the require-
ments of the work being done.
Wear ear protectors. Exposure to noise can cause
hearing loss.
CAUTION
The closed side of the guard must always face the
operator.
WARNING
Test new cutting or grinding discs by allowing them
to run at maximum speed in a protected area for at
least 30 seconds.
WARNING
Slits cut in loadbearing walls of buildings or other
structures may influence the statics of the structure,
especially when steel reinforcing bars or load-bearing
components are cut through. Consult the structural
engineer, architect, or person in charge of the
building project before beginning the work.
WARNING
The electric supply voltage must comply with the
information given on the type identification plate
on the power tool.
WARNING
Always use the side handle with the power tool.
CAUTION
Use clamps or a vice to hold the workpiece securely.
WARNING
Cutting or grinding may cause splintering of the
material. Wear eye protection.
CAUTION
Breathing protection must be worn if the power tool
is used without a dust removal system for work that
creates dust.
WARNING
Avoid touching rotating parts. Switch the power tool
on only after bringing it into position at the work-
piece. Touching rotating parts, especially rotating
insert tools, may lead to injury.
CAUTION
The insert tool may get hot during use. Wear protec-
tive gloves when changing insert tools.
WARNING
Reduce the load on the power tool by avoiding
tilting the disc in the kerf when cutting. The disc
may otherwise break, or the power tool may kick back
or stall.
CAUTION
Improve the blood circulation in your fingers by
relaxing your hands and exercising your fingers
during breaks between working.
WARNING
Keep inflammable materials away from the working
area.
6.1 Switching on / off with a lockable switch
6.1.1 Switching on and locking the switch 8
1. Plug the supply cord into the power outlet.
2. Press the on / off switch and then press the
lockbutton.
6.1.2 Switching off after locking the switch
Press the on / off switch (the lock releases).
6.2 Working with the power tool
NOTE
Apply only moderate pressure.
NOTE
The direction in which the cut is made is important.
The disc must always cut in counter-rotating mode.
Failure to observe this point presents a risk of the
cutting disc being forced uncontrollably out of the
kerf.
en
11
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

NOTE
Special discs should be used for working on non-
ferrous metals (e.g. aluminium).
NOTE
The cutting disc may overheat and suffer damage
when cutting very hard mineral materials with a high
hard pebble content. A trail of sparks right round the
circumference of the cutting disc is a sure indication
of this. In this case, the cutting operation should be
interrupted and the cutting disc allowed to cool by
running the power tool under no load for a short time.
NOTE
A decrease in the rate of cutting progress may be an
indication of blunt/dull segments. The segments can
be resharpened by making a few cuts in an abrasive
material (Hilti sharpening plate or sand-lime block).
6.3 Rough grinding
CAUTION
Never use cutting discs for grinding.
When rough grinding, maximum efficiency is
achieved when the power tool is held with the disc
at an angle of 30° to the work surface. Excessive
pressure applied while grinding will damage the
power tool, increase disc wear and reduce grinding
efficiency.
7. Care and maintenance
CAUTION
Disconnect the mains plug from the power outlet.
7.1 Care of the power tool
DANGER
Under extreme conditions, when used for working
on metal, conductive dust may accumulate inside
the tool. This may have an adverse effect on the
tool’s protective insulation. Under such conditions,
the tool should be plugged into a ground fault
circuit interrupter (GFCI) and use of a stationary
dust removal system and frequent cleaning of the
tool’s cooling air slots is recommended.
The outer casing of the power tool is made from
impact-resistant plastic. Sections of the grip are made
from a synthetic rubber material.
Never operate the power tool when the ventilation
slots are blocked. Clean the ventilation slots carefully
using a dry brush. Do not permit foreign objects to
enter the interior of the power tool. Clean the outside
of the power tool at regular intervals with a slightly
damp cloth. Do not use a spray, steam pressure
cleaning equipment or running water for cleaning.
This may negatively affect the electrical safety of the
power tool. Always keep the grip surfaces of the
power tool free from oil and grease. Do not use
cleaning agents which contain silicone.
7.2 Maintenance
WARNING
Do not operate the power tool if parts are damaged,
if the electronic control unit is defective or when the
controls do not function faultlessly. Have the power
tool repaired by Hilti Service.
WARNING
Repairs to the electrical section of the power tool
may be carried out only by trained electrical spe-
cialists.
Check all external parts of the power tool for damage
at regular intervals and check that all controls operate
faultlessly.
7.3 Checking the power tool after care and
maintenance
After carrying out care and maintenance work on
the power tool, check that all protective and safety
devices are fitted and that they function faultlessly.
en
12
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00

8. Insert tools, accessories
Discs of max. 7" diameter designed for use at 8500 /min and a peripheral speed of 80 m/sec
Abrasive discs Type 1, type 41, type 42
Diamond discs DC-D 7"
Wire brushes Max. 7"
Abrasive flap discs Max. 7"
Accessories
Guard with cover plate
Vacuum cleaner from the Hilti range
Inner clamping flange for flat discs
Outer clamping flange for flat discs
9. Troubleshooting
Fault Possible cause Remedy
The power tool doesn’t start. Interruption in the electric supply. Plug in another electric appliance
and check whether it works.
The supply cord or plug is defec-
tive.
Have the parts checked by a trained
electrical specialist and replaced if
necessary.
The carbon brushes are worn. Have it checked by a trained electri-
cal specialist and replaced if neces-
sary.
The power tool doesn’t
achieve full power.
The extension cord’s conductor
cross section is inadequate.
Use an extension cord with an ade-
quate conductor cross section.
10. Disposal
Most of the materials from which Hilti power tools or appliances are manufactured can be recycled. The
materials must be correctly separated before they can be recycled. In many countries, Hilti has already made
arrangements for taking back your old power tools or appliances for recycling. Please ask your Hilti customer
service department or Hilti representative for further information.
en
13
Printed: 07.07.2013 | Doc-Nr: PUB / 5069467 / 000 / 00