Bosch GWS 7-125 Professional: English
English: Bosch GWS 7-125 Professional
OBJ_BUCH-1188-003.book Page 11 Tuesday, August 13, 2013 2:49 PM
English | 11
Nur für EU-Länder:
Personal safety
Gemäß der Europäischen Richtlinie
Stay alert, watch what you are doing and use common
2012/19/EU über Elektro- und Elektronik-
sense when operating a power tool. Do not use a power
Altgeräte und ihrer Umsetzung in nationales
tool while you are tired or under the influence of drugs,
Recht müssen nicht mehr gebrauchsfähige
alcohol or medication. A moment of inattention while op-
Elektrowerkzeuge getrennt gesammelt und
erating power tools may result in serious personal injury.
einer umweltgerechten Wiederverwertung
Use personal protective equipment. Always wear eye
zugeführt werden.
protection. Protective equipment such as dust mask,
Änderungen vorbehalten.
non-skid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal inju-
ries.
Prevent unintentional starting. Ensure the switch is in
English
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 en-
General Power Tool Safety Warnings
ergising power tools that have the switch on invites acci-
Read all safety warnings and all in-
dents.
WARNING
structions. Failure to follow the warnings
Remove any adjusting key or wrench before turning
and instructions may result in electric shock, fire and/or seri-
the power tool on. A wrench or a key left attached to a ro-
ous injury.
tating part of the power tool may result in personal injury.
Save all warnings and instructions for future reference.
Do not overreach. Keep proper footing and balance at
The term “power tool” in the warnings refers to your mains-
all times. This enables better control of the power tool in
operated (corded) power tool or battery-operated (cordless)
unexpected situations.
power tool.
Dress properly. Do not wear loose clothing or jewel-
lery. Keep your hair, clothing and gloves away from
Work area safety
moving parts. Loose clothes, jewellery or long hair can be
Keep work area clean and well lit. Cluttered or dark areas
caught in moving parts.
invite accidents.
If devices are provided for the connection of dust ex-
Do not operate power tools in explosive atmospheres,
traction and collection facilities, ensure these are con-
such as in the presence of flammable liquids, gases or
nected and properly used. Use of dust collection can re-
dust. Power tools create sparks which may ignite the dust
duce dust-related hazards.
or fumes.
Power tool use and care
Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
Do not force the power tool. Use the correct power tool
for your application. The correct power tool will do the
Electrical safety
job better and safer at the rate for which it was designed.
Power tool plugs must match the outlet. Never modify
Do not use the power tool if the switch does not turn it
the plug in any way. Do not use any adapter plugs with
on and off. Any power tool that cannot be controlled with
earthed (grounded) power tools. Unmodified plugs and
the switch is dangerous and must be repaired.
matching outlets will reduce risk of electric shock.
Disconnect the plug from the power source and/or the
Avoid body contact with earthed or grounded surfaces,
battery pack from the power tool before making any
such as pipes, radiators, ranges and refrigerators.
adjustments, changing accessories, or storing power
There is an increased risk of electric shock if your body is
tools. Such preventive safety measures reduce the risk of
earthed or grounded.
starting the power tool accidentally.
Do not expose power tools to rain or wet conditions.
Store idle power tools out of the reach of children and
Water entering a power tool will increase the risk of electric
do not allow persons unfamiliar with the power tool or
shock.
these instructions to operate the power tool. Power
Do not abuse the cord. Never use the cord for carrying,
tools are dangerous in the hands of untrained users.
pulling or unplugging the power tool. Keep cord away
Maintain power tools. Check for misalignment or bind-
from heat, oil, sharp edges and moving parts. Damaged
ing of moving parts, breakage of parts and any other
or entangled cords increase the risk of electric shock.
condition that may affect the power tool’s operation. If
When operating a power tool outdoors, use an exten-
damaged, have the power tool repaired before use.
sion cord suitable for outdoor use. Use of a cord suitable
Many accidents are caused by poorly maintained power
for outdoor use reduces the risk of electric shock.
tools.
If operating a power tool in a damp location is unavoid-
Keep cutting tools sharp and clean. Properly maintained
able, use a residual current device (RCD) protected
cutting tools with sharp cutting edges are less likely to bind
supply. Use of an RCD reduces the risk of electric shock.
and are easier to control.
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12 | English
Use the power tool, accessories and tool bits etc. in ac-
Wear personal protective equipment. Depending on
cordance with these instructions, taking into account
application, use face shield, safety goggles or safety
the working conditions and the work to be performed.
glasses. As appropriate, wear dust mask, hearing pro-
Use of the power tool for operations different from those
tectors, gloves and shop apron capable of stopping
intended could result in a hazardous situation.
small abrasive or workpiece fragments. The eye protec-
To save energy, only switch the power tool on when using
tion must be capable of stopping flying debris generated
it.
by various operations. The dust mask or respirator must be
capable of filtrating particles generated by your operation.
Service
Prolonged exposure to high intensity noise may cause
Have your power tool serviced by a qualified repair per-
hearing loss.
son using only identical replacement parts. This will en-
Keep bystanders a safe distance away from work area.
sure that the safety of the power tool is maintained.
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
Safety Warnings for Angle Grinder
immediate area of operation.
Safety Warnings common for Grinding, Sanding,
Hold the power tool by insulated gripping surfaces on-
ly, when performing an operation where the cutting ac-
Wire Brushing or Abrasive Cutting Off Operations
cessory may contact hidden wiring or its own cord. Cut-
This power tool is intended to function as a grinder,
ting accessory contacting a “live” wire may make exposed
sander, wire brush or cut-off tool. Read all safety warn-
metal parts of the power tool “live” and could give the op-
ings, instructions, illustrations and specifications pro-
erator an electric shock.
vided with this power tool. Failure to follow all instruc-
Position the cord clear of the spinning accessory. If you
tions listed below may result in electric shock, fire and/or
lose control, the cord may be cut or snagged and your hand
serious injury.
or arm may be pulled into the spinning wheel.
Operations such as polishing are not recommended to
Never lay the power tool down until the accessory has
be performed with this power tool. Operations for which
come to a complete stop. The spinning wheel may grab
the power tool was not designed may create a hazard and
the surface and pull the power tool out of your control.
cause personal injury.
Do not run the power tool while carrying it at your side.
Do not use accessories which are not specifically de-
Accidental contact with the spinning accessory could snag
signed and recommended by the tool manufacturer.
your clothing, pulling the accessory into your body.
Just because the accessory can be attached to your power
tool, it does not assure safe operation.
Regularly clean the power tool’s air vents. The motor’s
fan will draw the dust inside the housing and excessive ac-
The rated speed of the accessory must be at least equal
cumulation of powdered metal may cause electrical haz-
to the maximum speed marked on the power tool. Ac-
ards.
cessories running faster than their rated speed can break
and fly apart.
Do not operate the power tool near flammable materi-
als. Sparks could ignite these materials.
The outside diameter and the thickness of your acces-
sory must be within the capacity rating of your power
Do not use accessories that require liquid coolants. Us-
tool. Incorrectly sized accessories cannot be adequately
ing water or other liquid coolants may result in electrocu-
guarded or controlled.
tion or shock.
Threaded mounting of accessories must match the
Kickback and related warnings
grinder spindle thread. For accessories mounted by
Kickback is a sudden reaction to a pinched or snagged ro-
flanges, the arbour hole of the accessory must fit the
tating wheel, backing pad, brush or any other accessory.
locating diameter of the flange. Accessories that do not
Pinching or snagging causes rapid stalling of the rotating
match the mounting hardware of the power tool will run out
accessory which in turn causes the uncontrolled power
of balance, vibrate excessively and may cause loss of con-
tool to be forced in the direction opposite of the accesso-
trol.
ry’s rotation at the point of the binding.
Do not use a damaged accessory. Before each use in-
For example, if an abrasive wheel is snagged or pinched by
spect the accessory such as abrasive wheels for chips
the workpiece, the edge of the wheel that is entering into
and cracks, backing pad for cracks, tear or excess
the pinch point can dig into the surface of the material
wear, wire brush for loose or cracked wires. If power
causing the wheel to climb out or kick out. The wheel may
tool or accessory is dropped, inspect for damage or in-
either jump toward or away from the operator, depending
stall an undamaged accessory. After inspecting and in-
on direction of the wheel’s movement at the point of pinch-
stalling an accessory, position yourself and bystanders
ing. Abrasive wheels may also break under these condi-
away from the plane of the rotating accessory and run
tions.
the power tool at maximum no-load speed for one min-
Kickback is the result of power tool misuse and/or incor-
ute. Damaged accessories will normally break apart during
rect operating procedures or conditions and can be avoid-
this test time.
ed by taking proper precautions as given below.
1 609 92A 0EE | (13.8.13) Bosch Power Tools
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Maintain a firm grip on the power tool and position your
Do not position your body in line with and behind the
body and arm to allow you to resist kickback forces. Al-
rotating wheel. When the wheel, at the point of operation,
ways use auxiliary handle, if provided, for maximum
is moving away from your body, the possible kickback may
control over kickback or torque reaction during
propel the spinning wheel and the power tool directly at
start-up. The operator can control torque reactions or
you.
kickback forces, if proper precautions are taken.
When wheel is binding or when interrupting a cut for
Never place your hand near the rotating accessory. Ac-
any reason, switch off the power tool and hold the pow-
cessory may kickback over your hand.
er tool motionless until the wheel comes to a complete
Do not position your body in the area where power tool
stop. Never attempt to remove the cut-off wheel from
will move if kickback occurs. Kickback will propel the
the cut while the wheel is in motion otherwise kickback
tool in direction opposite to the wheel’s movement at the
may occur. Investigate and take corrective action to elimi-
point of snagging.
nate the cause of wheel binding.
Use special care when working corners, sharp edges,
Do not restart the cutting operation in the workpiece.
etc. Avoid bouncing and snagging the accessory. Cor-
Let the wheel reach full speed and carefully re-enter
ners, sharp edges or bouncing have a tendency to snag the
the cut. The wheel may bind, walk up or kickback if the
rotating accessory and cause loss of control or kickback.
power tool is restarted in the workpiece.
Do not attach a saw chain woodcarving blade or
Support panels or any oversized workpiece to minimize
toothed saw blade. Such blades create frequent kickback
the risk of wheel pinching and kickback. Large work-
and loss of control.
pieces tend to sag under their own weight. Supports must
be placed under the workpiece near the line of cut and near
Safety warnings specific for Grinding and Abra-
the edge of the workpiece on both sides of the wheel.
sive Cutting-Off operations
Use extra caution when making a “pocket cut” into ex-
Use only wheel types that are recommended for your
isting walls or other blind areas. The protruding wheel
power tool and the specific guard designed for the se-
may cut gas or water pipes, electrical wiring or objects that
lected wheel. Wheels for which the power tool was not de-
can cause kickback.
signed cannot be adequately guarded and are unsafe.
Safety warnings specific for sanding operations
The grinding surface of the centre depressed wheels
Do not use excessively oversized sanding disc paper.
must be mounted below the plane of the guard lip. An
Follow manufacturers recommendations, when select-
improperly mounted wheel that projects through the plane
ing sanding paper. Larger sanding paper extending be-
of the guard lip cannot be adequately protected.
yond the sanding pad presents a laceration hazard and
The guard must be securely attached to the power tool
may cause snagging, tearing of the disc, or kickback.
and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator. The
Safety warnings specific for wire brushing
guard helps to protect operator from broken wheel frag-
operations
ments, accidental contact with wheel and sparks that
Be aware that wire bristles are thrown by the brush
could ignite clothing.
even during ordinary operation. Do not overstress the
Wheels must be used only for recommended applica-
wires by applying excessive load to the brush. The wire
tions. For example: do not grind with the side of the
bristles can easily penetrate light clothing and/or skin.
cut-off wheel. Abrasive cut-off wheels are intended for
If the use of a guard is recommended for wire brushing,
peripheral grinding; side forces applied to these wheels
do not allow any interference of the wire wheel or
may cause them to shatter.
brush with the guard. Wire wheel or brush may expand in
Always use undamaged wheel flanges that are of cor-
diameter due to work load and centrifugal forces.
rect size and shape for your selected wheel. Proper
wheel flanges support the wheel thus reducing the possi-
bility of wheel breakage. Flanges for cut-off wheels may be
Additional Safety and Working In-
different from grinding wheel flanges.
structions
Do not use worn down reinforced wheels from larger
Observe correct mains voltage! The voltage of the pow-
power tools. Wheels intended for larger power tools are
er source must agree with the voltage specified on the
not suitable for the higher speed of a smaller tool and may
nameplate of the machine. Power tools marked with
burst.
230 V can also be operated with 220 V.
Additional safety warnings specific for abrasive
Use suitable detectors to determine if utility lines are
cutting off operations
hidden in the work area or call the local utility company
Do not “jam” the cut-off wheel or apply excessive pres-
for assistance. Contact with electric lines can lead to fire
sure. Do not attempt to make an excessive depth of cut.
and electric shock. Damaging a gas line can lead to explo-
Overstressing the wheel increases the loading and suscep-
sion. Penetrating a water line causes property damage or
tibility to twisting or binding of the wheel in the cut and the
may cause an electric shock.
possibility of kickback or wheel breakage.
Bosch Power Tools 1 609 92A 0EE | (13.8.13)
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14 | English
Release the On/Off switch and set it to the off position
Provide for sufficient dust extraction when cutting
when the power supply is interrupted, e. g., in case of a
stone. Wear a dust respirator.
power failure or when the mains plug is pulled. This pre-
Products sold in GB only: Your product is fitted with an
vents uncontrolled restarting.
BS 1363/A approved electric plug with internal fuse (ASTA
Dusts from materials such as lead-containing coatings,
approved to BS 1362).
some wood types, minerals and metal can be harmful to
If the plug is not suitable for your socket outlets, it should be
one’s health and cause allergic reactions, lead to res-
cut off and an appropriate plug fitted in its place by an author-
piratory infections and/or cancer. Materials containing
ised customer service agent. The replacement plug should
asbestos may only be worked by specialists.
have the same fuse rating as the original plug.
– As far as possible, use a dust extraction system suita-
The severed plug must be disposed of to avoid a possible
ble for the material.
shock hazard and should never be inserted into a mains sock-
– Provide for good ventilation of the working place.
et elsewhere.
– It is recommended to wear a P2 filter-class respirator.
Products sold in AUS and NZ only: Use a residual current de-
Observe the relevant regulations in your country for the
vice (RCD) with a rated residual current of 30 mA or less.
materials to be worked.
Prevent dust accumulation at the workplace. Dusts can
Symbols
easily ignite.
The following symbols are important for reading and under-
Secure the workpiece. A workpiece clamped with clamp-
standing the operating instructions. Please take note of the
ing devices or in a vice is held more secure than by hand.
symbols and their meaning. The correct interpretation of the
After breakage of the grinding disc during operation or
symbols will help you to use the machine in a better and safer
damage to the holding fixtures on the protection
manner.
guard/power tool, the machine must promptly be sent to
an after-sales service agent for maintenance for address-
Symbol Meaning
es, see section “After-sales Service and Application Ser-
Article number
vice”.
Adjust protection guard in such a manner that sparking
toward the operator is prevented.
Do not touch grinding and cutting discs before they
Read all safety warnings and all instruc-
have cooled down. The discs can become very hot while
tions
working.
Actuate the spindle lock button only when the grinder
spindle is at a standstill. Otherwise, the machine may be-
Before any work on the machine itself,
come damaged.
pull the mains plug from the socket out-
After mounting the grinding tool and before switching
let
on, check that the grinding tool is correctly mounted
Wear protective gloves
and that it can turn freely. Make sure that the grinding
tool does not graze against the protection guard or oth-
er parts.
When operating the machine with power from mobile gen-
Always wear ear protection
erators, loss of performance or untypical behavior can oc-
cur upon switching on.
By applying too high application force, the machine can
Wear safety glasses/goggles
be subject to overload. Overload can lead to overheat-
ing and damage of the power tool. After heavily strain-
ing the power tool, continue to run it at no-load for sev-
eral minutes in order to cool it down.
Movement direction
Do not use the power tool with a cut-off stand.
Never use a cutting disc for roughing.
The quick-clamping nut may be used only for grinding
Apply strength for the workstep.
or cutting discs. Use only a flawless, undamaged quick-
clamping nut.
For operations with the rubber sanding plate or with
Low speed
the cup brush/wheel brush/flap disc, always mount the
hand guard .
For cutting with bonded abrasives, always use a pro-
tection guard for cutting.
1 609 92A 0EE | (13.8.13) Bosch Power Tools
English | 15
Symbol Meaning
Delivery Scope
High speed
Angle grinder, protection guard, auxiliary handle.
Special protection guards, application tools and other acces-
sories shown or described are not part of the standard deliv-
Switching On
ery scope.
A complete overview of accessories can be found in our ac-
Switching Off
cessories program.
On/Off switch lock-on
Intended Use
The machine is intended for roughing metal, stone and ceram-
Releasing the lock-on function of the
ic materials and for drilling tiles.
On/Off switch
For cutting with bonded abrasives, a special cutting guard
Prohibited action
(accessory) must be used.
When cutting in stone, provide for sufficient dust extraction.
Together with the hand guard (accessory), the machine can
Permitted action
be used for brushing and grinding/sanding with elastic sand-
ing plates.
The machine is suitable only for working without water.
Next step of action
Technical Data
P
1
Rated power input
The technical data of the machine are listed in the table on
P
2
Output power
page 242.
n Rated speed
The values given are valid for a nominal voltage [U] of 230 V.
n
v
Speed control adjustment
For different voltages and models for specific countries,
l = Grinder spindle length
these values can vary.
d
1
= Grinder spindle diameter
Declaration of Conformity
D = Max. grinding disc diameter
We declare under our sole responsibility that the product de-
d
2
= Inner disc diameter
scribed under “Technical Data” is in conformity with the fol-
lowing standards or standardization documents: EN 60745
Speed preselection
according to the provisions of the directives 2011/65/EU,
2004/108/EC, 2006/42/EC.
Technical file (2006/42/EC) at:
Additional information
Robert Bosch GmbH, PT/ETM9,
D-70745 Leinfelden-Echterdingen
Surface grinding
Grinding/sanding with sanding sheet
Weight according to EPTA-Procedure
01/2003 with vibration-damping auxil-
iary handle
Weight according to EPTA-Procedure
Robert Bosch GmbH, Power Tools Division
01/2003 with standard-auxiliary handle
D-70745 Leinfelden-Echterdingen
14.08.2013
/II Symbol for protection class II (com-
pletely insulated)
Noise/Vibration Information
L
wA
Sound power level
The measured values of the machine are listed in the table on
L
pA
Sound pressure level
page 242.
KUncertainty
Noise and vibrational values (vector sum of three directions)
a
Vibration total value
determined according to EN 60745.
h
The vibration emission level given in this information sheet
has been measured in accordance with a standardised test
given in EN 60745 and may be used to compare one tool with
another. It may be used for a preliminary assessment of expo-
sure.
Bosch Power Tools 1 609 92A 0EE | (13.8.13)
d
1
l
d
2
D
1
2
OBJ_BUCH-1188-003.book Page 15 Tuesday, August 13, 2013 2:49 PM
Henk Becker
Helmut Heinzelmann
Executive Vice President
Head of Product Certification
Engineering
PT/ETM9
16 | English
The declared vibration emission level represents the main ap-
when it is running but not actually doing the job. This may sig-
plications of the tool. However if the tool is used for different
nificantly reduce the exposure level over the total working pe-
applications, with different accessories or poorly maintained,
riod.
the vibration emission may differ. This may significantly in-
Identify additional safety measures to protect the operator
crease the exposure level over the total working period.
from the effects of vibration such as: maintain the tool and the
An estimation of the level of exposure to vibration should also
accessories, keep hands warm, organise work patterns.
take into account the times when the tool is switched off or
Mounting and Operation
The following table indicates the action objectives for mounting and operation of the power tool. The instructions for each action
objective are shown aside. Depending on the type of application, various instruction combinations are required. Observe the
safety instructions.
Action
Figure
Please observe Page
Grinding, preparation 1 243 – 244
Cutting, preparation 2 245 – 246
Cutting stone, brick and tiles,
3 247 – 248
preparation (recommendation)
Removing paint, preparation 4 249
Removing rust, preparation 5 250
Drilling tiles, preparation 6 251
Mounting the quick-clamping nut 7 251 – 252
Dismounting the quick-clamping
8252
nut
1 609 92A 0EE | (13.8.13) Bosch Power Tools
30°
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OBJ_BUCH-1188-003.book Page 17 Tuesday, August 13, 2013 2:49 PM
English | 17
Action
Figure
Please observe Page
Switching On and Off 9 252
Adjusting the speed preselection 10 253
Working effectively with the angle
11 254
grinder
Grey-marked area: Handle
12 254
(insulated gripping surface)
Selecting the admissible grinding
13 255
tool
Selecting Accessories – 256 – 257
Maintenance and Cleaning
Great Britain
Robert Bosch Ltd. (B.S.C.)
For safe and proper working, always keep the machine
P.O. Box 98
and ventilation slots clean.
Broadwater Park
In extreme conditions, always use dust extraction as far
North Orbital Road
as possible. Blow out ventilation slots frequently and in-
Denham
stall a residual current device (RCD). When working met-
Uxbridge
als, conductive dust can settle in the interior of the power
UB 9 5HJ
tool. The total insulation of the power tool can be impaired.
Tel. Service: (0844) 7360109
Please store and handle the accessory(-ies) carefully.
Fax: (0844) 7360146
If the replacement of the supply cord is necessary, this has to
E-Mail: boschservicecentre@bosch.com
be done by Bosch or an authorized Bosch service agent in or-
Ireland
der to avoid a safety hazard.
Origo Ltd.
Unit 23 Magna Drive
After-sales Service and Application
Magna Business Park
City West
Service
Dublin 24
In all correspondence and spare parts order, please always in-
Tel. Service: (01) 4666700
clude the 10-digit article number given on the type plate of
Fax: (01) 4666888
the machine.
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Bosch’s application service team will gladly answer questions
concerning our products and their accessories.
Bosch Power Tools 1 609 92A 0EE | (13.8.13)