Bosch GWS 10-45, GWS 10-45P, GWS 10-45PD, GWS 13-50, GWS 13-50P Operating/safety Instructions Manual

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

Operating/Safety Instructions
Consignes d’utilisation/de sécurité

Instrucciones de funcionamiento y seguridad

For English Version Version française Versión en español
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WS10-45
GWS10-45P
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GWS13-50VS
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GWS13-60
GWS13-60PD

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Work area safety

Keep work area clean and well lit. Cluttered

or dark areas invite accidents.

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.

Keep children and bystanders away while
operating a power tool. Distractions can

cause you to lose control.

Electrical safety

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.

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.

Do not expose power tools to rain or wet
conditions. Water entering a power tool will

increase the risk of electric shock.

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.

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 a power tool in a damp location
is unavoidable, use a Ground Fault Circuit
Interrupter (GFCI) protected supply. Use of

an GFCI reduces the risk of electric shock.

Personal safety

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.

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.

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.

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.

Do not overreach. Keep proper footing and
balance at all times. This enables better

con trol of th e powe r too l in unexpe cted
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.

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.

Power tool use and care

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.

Do not use the power tool if the switch does
not turn it on and off. Any power tool that

can n o t b e c ontrolled with the switc h is
dangerous and must be repaired.

Disconnect the plug from the power source

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 all of the warnings refers to your mains-operated (corded) power tool
or battery-operated (cordless) power tool.

!

WARNING

General Power Tool Safety Warnings

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and/or the battery pack from the power tool
b

efore making any adjustments, changing

accessories, or storing power tools. Such

preventive safety measures reduce the risk of
starting the power tool accidentally.

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.

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.

Man y acc i d ents 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.

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.

Battery tool use and care

Recharge only with the charger specified
by the manufacturer. A charger that is

suitable for one type of battery pack may
create a risk of fire when used with another
battery pack.

Use power tools only with specifically
designated battery packs. Use of any other

battery packs may create a risk of injury and
fire.

When battery pack is not in use, keep it
away from other metal objects like paper
clips, coins, keys, nails, screws, or other
small metal ob j e c ts that can make a
connection from one terminal to another.

Shorting the battery terminals together may
cause burns or a fire.

Under abusive conditions, liquid may be
ejected from the battery, avoid contact. If
contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally
seek medical help. Liquid ejected from the

battery may cause irritation or burns.

Service

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 Warnings Common for

Grinding, Sanding, Wire Brushing,

and Abrasive Cutting-Off

Operations:

T

his 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.

Operations such as polishing is not
recommended to be performed with this
power tool. Operations for which the power

tool was not designed may create a hazard
and cause personal injury.

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.

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.

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.

Threaded mounting of accessories must
match the GRINDER spindle thread. For
accessories mounted by FLANGES, the
arbour hole of the accessory must fit the
locating diameter of the FLANGE.

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

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.

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Wear personal protective equipment.
D

epending 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
pa rticles generated by your operation.
Prolonged exposure to high intensity noise may
cause hearing loss.

Keep bystanders a safe distance away from
work area. Anyone entering the work area
must wear personal protective equipment.

Fr agments of work piece or of a broke n
accessory may fly away and cause injury
beyond immediate area of operation.

Hold the power tool by insulated gripping
surfaces only, when performing an
operation where the cutting accessory may
contact hidden wiring or its own cord.

Cutting accessory contacting a “live” wire may
make exposed metal parts of the power tool
“live” and could give the operator an electric
shock.

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.

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.

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.

Regularly clean the power tool’s air vents.

The motor’s fan will draw the dust inside the
ho using and exce ssive acc umulation of
powdered metal may cause electrical hazards.

Do not operate the power tool near
flammable materials. Sparks could ignite

these materials.

Do not use accessories that require liquid
coolants. Using water or other liquid coolants

may result in electrocution or shock.

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
a

ccessory’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 kickout. The wheel may
either jump toward or away from the operator,
de pending on direction o f 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.

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

re actions or kic kback f orce s, if proper
precautions are taken.

Never place your hand near the rotating
accessory. Accessory may kickback over your

hand.

Do not position your body in the area where
power tool will move if kickback occurs.

Kickback wil l propel the tool in direction
opposite to the wheel’s movement at the point
of snagging.

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.

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:

Use only wheel types that are
recommended for your power tool and the
specific guard designed for the selected
wheel. Wh eels fo r which the

po wer t ool w as not desi gned canno t be
adequately guarded and are unsafe.

The grinding surface of centre depressed
wheels must be mounted below the plane of
the guard lip. An improperly mounted wheel

that projects through the plane of the guard lip
cannot be adequately protected.

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The guard must be securely attached to the
p

ower 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.

Wheels must be used only for
recommended applications. For example:
do not grind with the side of cut-off wheel.

Abras ive cut-off wheels are intended for
peripheral grinding, side forces applied to these
wheels may cause them to shatter.

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.

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:

Do not “jam” the cut-off wheel or apply
excessive pressure. Do not attempt to make
an excessive depth of cut. Overstressing the

wheel increases the loading and susceptibility
to twisting or binding of the wheel in the cut and
the possibility of kickback or wheel breakage.

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.

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.

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.

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
n

ear 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.

Do not use type 1 abrasive wheels designed
for straight grinding.

Do not attempt to cut large stock or sheets
of metal as this machine is not designed to
be a dedicated cut-off machine.

Safety Warnings Specific for

Sanding Operations:

Do not use excessively oversized sanding
disc paper. Follow manufacturer’s
recommendations, when selecting sanding
paper. Larger sanding paper extending beyond

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

Safety Warnings Specific for Wire

Brushing Operations:

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.

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.

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Additional Safety Warnings

Do not use AC only rated tools with a DC
power supply. While the tool may appear to

work, the electrical components of the AC
rated tool are likely to fail and create a hazard
to the operator.

Keep handles dry, clean and free from oil
and grease. Slippery hands cannot safely

control the power tool.

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.

Develop a periodic maintenance schedule
for your tool. When cleaning a tool be
careful not to disassemble any portion of
the tool since internal wires may be
misplaced or pinched or safety guard return
springs may be improperly mounted.

Certain cleaning agents such as gasoline,
carbon tetrachloride, ammonia, etc. may
damage plastic parts.

Do not use vacuum or other dust collection
system when cutting metal. Sparks from

metal cutting can cause fire in the collector.

Some dust created by power

sanding, sawing, grinding,
drilling, and other construction activities
contains chemicals known 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 chromium from chemically-

treated lumber.

You r risk from t h ese expos u r es 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.

!

WARNING

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Symbols

IMPORTANT: Some of the following symbols may be used on your tool. Please study them

and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.

Symbol Designation / Explanation

V Volts (voltage)

A Amperes (current)

Hz Hertz (frequency, cycles per second)

W Watt (power)

kg Kilograms (weight)

min Minutes (time)

s Seconds (time)

Diameter (size of drill bits, grinding wheels, etc.)

n

0

No load speed (rotational speed at no load)

n Rated speed (maximum attainable speed)

.../min

Revolutions or reciprocation per minute (revolutions, strokes, surface speed,
orbits etc. per minute)

0 Off position (zero speed, zero torque...)

1, 2, 3, ...

I, II, III,

Selector settings (speed, torque or position settings. Higher number means
greater speed)

0

Infinitely variable selector with off (speed is increasing from 0 setting)

Arrow (action in the direction of arrow)

Alternating current (type or a characteristic of current)

Direct current (type or a characteristic of current)

Alternating or direct current (type or a characteristic of current)

Class II construction (designates double insulated construction tools)

Earthing terminal (grounding terminal)

Warning symbol (alerts user to warning messages)

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Symbols (continued)

IMPORTANT: Some of the following symbols may be used on your tool. Please study them

and learn their meaning. Proper interpretation of these symbols will allow you to operate the
tool better and safer.

Symbol Designation / Explanation

Designates Li-ion battery recycling program

Designates Ni-Cad battery recycling program

Alerts user to read manual

Alerts user to wear eye protection

This symbol designates that this tool is listed by Underwriters Laboratories.

This symbol designates that this component is recognized by Underwriters
Laboratories.

This symbol designates that this tool is listed by Underwriters Laboratories,
to United States and Canadian Standards.

This symbol designates that this tool is listed by the Canadian Standards
Association.

This symbol designates that this tool is listed by the Canadian Standards
Association, to United States and Canadian Standards.

This symbol designates that this tool is listed by the Intertek Testing
Services, to United States and Canadian Standards.

This symbol designates that this tool complies to NOM Mexican Standards.

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