Bosch GWS 24-230 H Professional: English

OBJ_BUCH-777-009.book Page 17 Monday, August 5, 2013 11:15 AM

English | 17

 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.

 Wear personal protective equipment. Depending on

 Maintain a firm grip on the power tool and position your

application, use face shield, safety goggles or safety

body and arm to allow you to resist kickback forces. Al-

glasses. As appropriate, wear dust mask, hearing pro-

ways use auxiliary handle, if provided, for maximum

tectors, gloves and shop apron capable of stopping

control over kickback or torque reaction during

small abrasive or workpiece fragments. The eye protec-

start-up. The operator can control torque reactions or

tion must be capable of stopping flying debris generated

kickback forces, if proper precautions are taken.

by various operations. The dust mask or respirator must be

 Never place your hand near the rotating accessory. Ac-

capable of filtrating particles generated by your operation.

cessory may kickback over your hand.

Prolonged exposure to high intensity noise may cause

 Do not position your body in the area where power tool

hearing loss.

will move if kickback occurs. Kickback will propel the

 Keep bystanders a safe distance away from work area.

tool in direction opposite to the wheel’s movement at the

Anyone entering the work area must wear personal

point of snagging.

protective equipment. Fragments of workpiece or of a

 Use special care when working corners, sharp edges,

broken accessory may fly away and cause injury beyond

etc. Avoid bouncing and snagging the accessory. Cor-

immediate area of operation.

ners, sharp edges or bouncing have a tendency to snag the

 Hold the power tool by insulated gripping surfaces on-

rotating accessory and cause loss of control or kickback.

ly, when performing an operation where the cutting ac-

 Do not attach a saw chain woodcarving blade or

cessory may contact hidden wiring or its own cord. Cut-

toothed saw blade. Such blades create frequent kickback

ting accessory contacting a “live” wire may make exposed

and loss of control.

metal parts of the power tool “live” and could give the op-

erator an electric shock.

Safety warnings specific for Grinding and Abrasive

 Position the cord clear of the spinning accessory. If you

Cutting-Off operations

lose control, the cord may be cut or snagged and your hand

 Use only wheel types that are recommended for your

or arm may be pulled into the spinning wheel.

power tool and the specific guard designed for the se-

lected wheel. Wheels for which the power tool was not de-

 Never lay the power tool down until the accessory has

signed cannot be adequately guarded and are unsafe.

come to a complete stop. The spinning wheel may grab

the surface and pull the power tool out of your control.

 The grinding surface of the centre depressed wheels

must be mounted below the plane of the guard lip. An

 Do not run the power tool while carrying it at your side.

improperly mounted wheel that projects through the plane

Accidental contact with the spinning accessory could snag

of the guard lip cannot be adequately protected.

your clothing, pulling the accessory into your body.

 The guard must be securely attached to the power tool

 Regularly clean the power tool’s air vents. The motor’s

and positioned for maximum safety, so the least

fan will draw the dust inside the housing and excessive ac-

amount of wheel is exposed towards the operator. The

cumulation of powdered metal may cause electrical haz-

guard helps to protect operator from broken wheel frag-

ards.

ments, accidental contact with wheel and sparks that

 Do not operate the power tool near flammable materi-

could ignite clothing.

als. Sparks could ignite these materials.

 Wheels must be used only for recommended applica-

 Do not use accessories that require liquid coolants. Us-

tions. For example: do not grind with the side of the

ing water or other liquid coolants may result in electrocu-

cut-off wheel. Abrasive cut-off wheels are intended for

tion or shock.

peripheral grinding; side forces applied to these wheels

Kickback and related warnings

may cause them to shatter.

 Kickback is a sudden reaction to a pinched or snagged ro-

 Always use undamaged wheel flanges that are of cor-

tating wheel, backing pad, brush or any other accessory.

rect size and shape for your selected wheel. Proper

Pinching or snagging causes rapid stalling of the rotating

wheel flanges support the wheel thus reducing the possi-

accessory which in turn causes the uncontrolled power

bility of wheel breakage. Flanges for cut-off wheels may be

tool to be forced in the direction opposite of the accesso-

different from grinding wheel flanges.

ry’s rotation at the point of the binding.

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18 | English

 Do not use worn down reinforced wheels from larger

 Use suitable detectors to determine if utility lines are

power tools. Wheels intended for larger power tools are

hidden in the work area or call the local utility company

not suitable for the higher speed of a smaller tool and may

for assistance. Contact with electric lines can lead to fire

burst.

and electric shock. Damaging a gas line can lead to explo-

sion. Penetrating a water line causes property damage or

Additional safety warnings specific for abrasive cutting

may cause an electric shock.

off operations

 Release the On/Off switch and set it to the off position

 Do not “jam” the cut-off wheel or apply excessive pres-

when the power supply is interrupted, e. g., in case of a

sure. Do not attempt to make an excessive depth of cut.

power failure or when the mains plug is pulled. This pre-

Overstressing the wheel increases the loading and suscep-

vents uncontrolled restarting.

tibility to twisting or binding of the wheel in the cut and the

possibility of kickback or wheel breakage.

 Do not touch grinding and cutting discs before they

have cooled down. The discs can become very hot while

 Do not position your body in line with and behind the ro-

working.

tating wheel. When the wheel, at the point of operation, is

moving away from your body, the possible kickback may

 Secure the workpiece. A workpiece clamped with clamp-

propel the spinning wheel and the power tool directly at you.

ing devices or in a vice is held more secure than by hand.

 When wheel is binding or when interrupting a cut for

Products sold in GB only: Your product is fitted with an

any reason, switch off the power tool and hold the pow-

BS 1363/A approved electric plug with internal fuse (ASTA

er tool motionless until the wheel comes to a complete

approved to BS 1362).

stop. Never attempt to remove the cut-off wheel from

If the plug is not suitable for your socket outlets, it should be

the cut while the wheel is in motion otherwise kickback

cut off and an appropriate plug fitted in its place by an author-

may occur. Investigate and take corrective action to elimi-

ised customer service agent. The replacement plug should

nate the cause of wheel binding.

have the same fuse rating as the original plug.

The severed plug must be disposed of to avoid a possible

 Do not restart the cutting operation in the workpiece.

shock hazard and should never be inserted into a mains sock-

Let the wheel reach full speed and carefully re-enter

et elsewhere.

the cut. The wheel may bind, walk up or kickback if the

Products sold in AUS and NZ only: Use a residual current de-

power tool is restarted in the workpiece.

vice (RCD) with a rated residual current of 30 mA or less.

 Support panels or any oversized workpiece to minimize

the risk of wheel pinching and kickback. Large work-

pieces tend to sag under their own weight. Supports must

Product Description and Specifica-

be placed under the workpiece near the line of cut and near

tions

the edge of the workpiece on both sides of the wheel.

Read all safety warnings and all instruc-

 Use extra caution when making a “pocket cut” into ex-

tions. Failure to follow the warnings and in-

isting walls or other blind areas. The protruding wheel

structions may result in electric shock, fire

may cut gas or water pipes, electrical wiring or objects that

and/or serious injury.

can cause kickback.

Safety warnings specific for sanding operations

While reading the operating instructions, unfold the graphics

 Do not use excessively oversized sanding disc paper.

page for the machine and leave it open.

Follow manufacturers recommendations, when select-

ing sanding paper. Larger sanding paper extending be-

Intended Use

yond the sanding pad presents a laceration hazard and

The machine is intended for cutting, roughing and brushing of

may cause snagging, tearing of the disc, or kickback.

metal and stone materials without the use of water.

Safety warnings specific for wire brushing operations

For cutting with bonded abrasives, a special cutting guard

 Be aware that wire bristles are thrown by the brush

(accessory) must be used.

even during ordinary operation. Do not overstress the

When cutting in stone, provide for sufficient dust extraction.

wires by applying excessive load to the brush. The wire

With approved sanding tools, the machine can be used for

bristles can easily penetrate light clothing and/or skin.

sanding with sanding discs.

 If the use of a guard is recommended for wire brushing,

Product Features

do not allow any interference of the wire wheel or

The numbering of the product features refers to the illustra-

brush with the guard. Wire wheel or brush may expand in

tion of the machine on the graphics page.

diameter due to work load and centrifugal forces.

1 Spindle lock button

Additional safety warnings

2 On/Off switch

Wear safety goggles.

3 Auxiliary handle (insulated gripping surface)

4 Grinder spindle

5 Protection guard for grinding

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English | 19

6 Locking screw for protection guard

Noise/Vibration Information

7 Mounting flange with O-ring

Measured sound values determined according to EN 60745.

8 Grinding wheel*

Typically the A-weighted noise levels of the product are:

9 Clamping nut

Sound pressure level 93 dB(A); Sound power level

10 Two-pin spanner for clamping nut*

104 dB(A). Uncertainty K =3 dB.

11 Quick-clamping nut *

Wear hearing protection!

12 Carbide grinding head*

Vibration total values a

h

(triax vector sum) and uncertainty K

13 Protection guard for cutting*

determined according to EN 60745:

Surface grinding: a

=7.5m/s

2

, K=1.5 m/s

2

h

,

14 Cutting disc*

Disk sanding: a

=4.5m/s

2

, K=1.5 m/s

2

h

.

15 Protection guard for for grinding cup*

The vibration emission level given in this information sheet

16 Grinding cup*

has been measured in accordance with a standardised test

17 Two-pin spanner, offset, for grinding cup*

given in EN 60745 and may be used to compare one tool with

18 Hand guard*

another. It may be used for a preliminary assessment of expo-

19 Spacer discs*

sure.

20 Rubber sanding plate*

The declared vibration emission level represents the main ap-

plications of the tool. However if the tool is used for different

21 Sanding sheet*

applications, with different accessories or poorly maintained,

22 Round nut*

the vibration emission may differ. This may significantly in-

23 Cup brush*

crease the exposure level over the total working period.

24 Cutting guide with dust extraction protection guard *

An estimation of the level of exposure to vibration should also

25 Diamond cutting disc*

take into account the times when the tool is switched off or

26 Handle (insulated gripping surface)

when it is running but not actually doing the job. This may sig-

nificantly reduce the exposure level over the total working pe-

*Accessories shown or described are not part of the standard de-

livery scope of the product. A complete overview of accessories

riod.

can be found in our accessories program.

Identify additional safety measures to protect the operator

from the effects of vibration such as: maintain the tool and the

accessories, keep hands warm, organise work patterns.

Technical Data

Angle Grinder GWS ... 22-180

22-180

22-230

22-230

H

JH

H

JH

Article number

3 601 ... H81 L.. H81 M.. H82 L.. H82 M..

Rated power input

W22002200 2200 2200

Output power

W15001500 1500 1500

-1

Rated speed

min

8500 8500 6500 6500

Grinding disc diameter, max.

mm 180 180 230 230

Thread of grinder spindle

M 14 M 14 M 14 M 14

Thread length (max.) of grinder spindle

mm 25 25 25 25

Restarting Protection

–  – 

Reduced starting current

–  – 

Weight according to EPTA-Procedure 01/2003

– with vibration-damping auxiliary handle

kg

5.1

5.1

5.3

5.3

– with standard-auxiliary handle

kg

5.0

5.0

5.2

5.2

Protection class /II /II /II /II

Angle Grinder GWS ... 24-180

24-230

24-230

26-180

26-230

JH

H

JH

JH

JH

Article number 3 601 ... H83 M.. H84 L.. H84 M.. H55 M.. H56 M..

Rated power input

W24002400 2400 2600 2600

Output power

W16001600 1600 1700 1700

Rated speed

min

-1

8500 6500 6500 8500 6500

Grinding disc diameter, max.

mm 180 230 230 180 230

Thread of grinder spindle

M 14 M 14 M 14 M 14 M 14

Bosch Power Tools 1 609 92A 0B8 | (5.8.13)

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20 | English

Angle Grinder GWS ... 24-180

24-230

24-230

26-180

26-230

JH

H

JH

JH

JH

Thread length (max.) of grinder spindle

mm 25 25 25 25 25

Restarting Protection

 –  

Reduced starting current

 –  

Weight according to EPTA-Procedure 01/2003

– with vibration-damping auxiliary handle

kg

5.1

5.2

5.3

6.0

6.1

– with standard-auxiliary handle

kg

5.0

5.1

5.2

5.9

6.0

Protection class /II /II /II /II /II

The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.

Only for power tools without reduced starting current: Starting cycles generate brief voltage drops. Interference with other equipment/machines may

occur in case of unfavourable mains system conditions. Malfunctions are not to be expected for system impedances below 0.25 ohm.

Declaration of Conformity

 Provide for sufficient dust extraction when cutting

stone.

We declare under our sole responsibility that the product de-

scribed under “Technical Data” is in conformity with the fol-

The protection guard for cutting 13 is mounted in the same

lowing standards or standardization documents: EN 60745

manner as the protection guard for grinding 5.

according to the provisions of the directives 2011/65/EU,

Cutting Guide with Dust Extraction Protection Guard

2004/108/EC, 2006/42/EC.

The cutting guide with dust extraction protection guard 24 is

Technical file (2006/42/EC) at:

mounted in the same manner as the protection guard for

Robert Bosch GmbH, PT/ETM9,

grinding 5.

D-70745 Leinfelden-Echterdingen

Auxiliary Handle

Henk Becker

Helmut Heinzelmann

 Operate your machine only with the auxiliary handle 3.

Executive Vice President

Head of Product Certification

Engineering

PT/ETM9

Screw the auxiliary handle 3 on the right or left of the machine

head depending on the working method.

Hand Guard

 For operations with the rubber sanding plate 20 or with

the cup brush/wheel brush/flap disc, always mount the

Robert Bosch GmbH, Power Tools Division

D-70745 Leinfelden-Echterdingen

hand guard 18.

21.06.2013

The hand guard 18 is fastened with the auxiliary handle 3.

Mounting the Grinding Tools

Assembly

 Before any work on the machine itself, pull the mains

Mounting the Protective Devices

plug.

 Before any work on the machine itself, pull the mains

 Do not touch grinding and cutting discs before they

plug.

have cooled down. The discs can become very hot while

working.

Note: After breakage of the grinding disc during operation or

damage to the holding fixtures on the protection guard/power

Clean the grinder spindle 4 and all parts to be mounted.

tool, the machine must promptly be sent to an after-sales ser-

For clamping and loosening the grinding tools, lock the grind-

vice agent for maintenance for addresses, see section “After-

er spindle with the spindle lock button 1.

sales Service and Application Service”.

 Actuate the spindle lock button only when the grinder

Protection Guard for Grinding

spindle is at a standstill. Otherwise, the machine may be-

come damaged.

Place the protection guard 5 on the spindle collar. Adjust the

position of the protection guard 5 to the requirements of the

Grinding/Cutting Disc

operation and lock the protection guard 5 with the locking

Pay attention to the dimensions of the grinding tools. The

screw 6.

mounting hole diameter must fit the mounting flange without

 Adjust the protection guard 5 in such a manner that

play. Do not use reducers or adapters.

sparking is prevented in the direction of the operator.

When using diamond cutting discs, pay attention that the di-

Protection Guard for Cutting

rection-of-rotation arrow on the diamond cutting disc and the

direction of rotation of the machine (see direction-of-rotation

 For cutting with bonded abrasives, always use the pro-

arrow on the machine head) agree.

tection guard for cutting 13.

See graphics page for the mounting sequence.

1 609 92A 0B8 | (5.8.13) Bosch Power Tools

English | 21

To fasten the grinding/cutting disc, screw on the clamping nut

Use only a flawless, undamaged quick-clamping nut 11.

9 and tighten with the two-pin spanner; see Section “Quick-

When screwing on, pay attention that the side of the

clamping Nut ”.

quick-clamping nut 11 with printing does not face the

 After mounting the grinding tool and before switching

grinding disc; the arrow must point to the index mark 27.

on, check that the grinding tool is correctly mounted

Lock the grinder spindle with

and that it can turn freely. Make sure that the grinding

the spindle lock button 1. To

tool does not graze against the protection guard or oth-

tighten the quick-clamping

er parts.

nut, firmly turn the grinding

A plastic part (O-ring) is fitted around

disc in clockwise direction.

the centring collar of mounting flange 7.

If the O-ring is missing or damaged,

the mounting flange 7 must be replaced

before resuming operation.

Flap Disc

 For operations with the flap disc, always mount the

A properly attached, undam-

hand guard 18.

aged quick-clamping nut can

be loosened by hand when

Rubber Sanding Plate

turning the knurled ring in an-

 For operations with the rubber sanding plate 20, al-

ticlockwise direction.

ways mount the hand guard 18.

Never loosen a tight quick-

See graphics page for the mounting sequence.

clamping nut with pliers.

Before mounting the rubber sanding plate 20, put the 2 spac-

Always use the two-pin

er discs 19 onto the grinder spindle 4.

spanner. Insert the two-pin

spanner as shown in the illus-

Screw on the round nut 22 and tighten with the two-pin span-

tration.

ner.

Cup Brush/Disc Brush

 For operations with the cup brush/wheel brush, always

Approved Grinding Tools

mount the hand guard 18.

See graphics page for the mounting sequence.

All grinding tools mentioned in these operating instructions

can be used.

The cup brush/disc brush must be able to be screwed onto

-1

the grinder spindle until it rests firmly against the grinder

The permissible speed [min

] or the circumferential speed

spindle flange at the end of the grinder spindle threads. Tight-

[m/s] of the grinding tools used must at least match the values

en the cup brush/disc brush with an open-end spanner.

given in the table.

Therefore, observe the permissible rotational/circumferen-

Grinding Cup

tial speed on the label of the grinding tool.

 When working with the grinding cup, mount the special

protection guard 15.

max.

The grinding cup 16 should never project further out of the

[mm]

[mm]

protection guard 15 than necessary for the respective grind-

D b d [min

-1

] [m/s]

ing application. Adjust the protection guard 15 accordingly to

this dimension.

180

8

22.2

8500

80

See graphics page for the mounting sequence.

230

8

22.2

6500

80

Screw on clamping nut 9 and tighten with two-pin spanner

17.

180

8500

80

Quick-clamping Nut

––

230

6500

80

For convenient changing of grinding tools without the use of

additional tools, you can use the quick-clamping nut 11 in-

stead of the clamping nut 9.

 The quick-clamping nut 11 may be used only for grind-

100 30 M 14 8500 45

ing or cutting discs.

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d

D

b

D

d

b

D

OBJ_BUCH-777-009.book Page 22 Monday, August 5, 2013 11:15 AM

22 | English

Rotating the Machine Head

Switching On and Off

 Before any work on the machine itself, pull the mains

To start the power tool, press the On/Off switch 2 forward

plug.

and then down.

The machine head can be

To lock-on the pressed On/Off switch 2, push the On/Off

rotated with respect to

switch 2 further forward.

the machine housing in

To switch off the power tool, release the On/Off switch 2, or

90° steps. In this man-

when it is locked, briefly press the On/Off switch 2 and then

ner, the On/Off switch

release it.

can be brought into a

To save energy, only switch the power tool on when using it.

more convenient position

Switch Version without Lock-on (country-specific):

for special working situa-

tions, e. g., for cutting op-

To start the power tool, press the On/Off switch 2 forward

erations using the cutting

and then down.

guide with dust extrac-

To switch off the machine, release the On/Off switch 2.

tion protection guard 24 or for left-handed persons.

 Check grinding tools before using. The grinding tool

Completely unscrew the four screws. Rotate the machine

must be mounted properly and be able to move freely.

head carefully, without removing it from the housing, to the

Carry out a test run for at least one minute with no load.

new position. Screw in and tighten the four screws again.

Do not use damaged, out-of-centre or vibrating grind-

ing tools. Damaged grinding tools can burst and cause in-

Dust/Chip Extraction

juries.

 Dusts from materials such as lead-containing coatings,

Restarting Protection (GWS 22-180 JH/

some wood types, minerals and metal can be harmful to

GWS22-230JH/GWS24-180JH/GWS24-230JH/

one’s health. Touching or breathing-in the dusts can cause

GWS 26-180 JH/GWS 26-230 JH)

allergic reactions and/or lead to respiratory infections of

The restarting protection feature prevents uncontrolled re-

the user or bystanders.

starting of the machine after an interruption in the power sup-

Certain dusts, such as oak or beech dust, are considered

ply.

as carcinogenic, especially in connection with wood-treat-

ment additives (chromate, wood preservative). Materials

To restart the operation, switch the On/Off switch 2 to the

containing asbestos may only be worked by specialists.

Off position and start the machine again.

– As far as possible, use a dust extraction system suita-

Reduced starting current (GWS 22-180 JH/

ble for the material.

GWS22-230JH/GWS24-180JH/GWS24-230JH/

– Provide for good ventilation of the working place.

GWS 26-180 JH/GWS 26-230 JH)

– It is recommended to wear a P2 filter-class respirator.

The electronic reduced starting current limits the power con-

Observe the relevant regulations in your country for the

sumption when switching the tool on and enables operation

materials to be worked.

from a 13 ampere fuse.

 Prevent dust accumulation at the workplace. Dusts can

Note: When the machine runs at full speed immediately after

easily ignite.

switching on, the reduced starting current and the restarting

protection have failed. The power tool should be sent imme-

Operation

diately to an after-sales service (for addresses, see section

“After-sales Service and Application Service”.

Starting Operation

Working Advice

 Observe correct mains voltage! The voltage of the pow-

 Exercise caution when cutting slots in structural walls;

er source must agree with the voltage specified on the

see Section “Information on Structures”.

nameplate of the machine. Power tools marked with

230 V can also be operated with 220 V.

 Clamp the workpiece if it does not remain stationary

due to its own weight.

When operating the machine with power from mobile genera-

tors that do not have sufficient reserve capacity or are not

 Do not strain the machine so heavily that it comes to a

equipped with suitable voltage control with starting current

standstill.

amplification, loss of performance or untypical behavior can

 After heavily straining the power tool, continue to run

occur upon switching on.

it at no-load for several minutes to cool down the acces-

Please observe the suitability of the power generator being

sory.

used, particularly with regard to the mains voltage and fre-

 Do not touch grinding and cutting discs before they

quency.

have cooled down. The discs can become very hot while

working.

 Do not use the power tool with a cut-off stand.

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English | 23

Note: When not using for extended periods, pull the mains

Switch on the machine

plug out of the socket outlet. When the mains plug is inserted

and place the front part

and mains voltage is given, the power tool, even when

of the cutting guide on

switched off, still consumes a low amount of current.

the workpiece. Slide the

machine with moderate

Rough Grinding

feed, adapted to the ma-

 Never use a cutting disc for roughing.

terial to be worked.

The best roughing results are achieved when setting the ma-

chine at an angle of 30° to 40°. Move the machine back and

forth with moderate pressure. In this manner, the workpiece

will not become too hot, does not discolour and no grooves

are formed.

Flap Disc

With the flap disc (accessory), curved surfaces and profiles

For cutting expecially hard material, e. g., concrete with high

can be worked.

pebble content, the diamond cutting disc can overheat and

become damaged as a result. This is clearly indicated by cir-

Flap discs have a considerably higher service life, lower noise

cular sparking, rotating with the diamond cutting disc.

levels and lower sanding temperatures than conventional

In this case, interrupt the cutting process and allow the dia-

sanding sheets.

mond cutting disc to cool by running the machine for a short

Cutting Metal

time at maximum speed with no load.

 For cutting with bonded abrasives, always use the pro-

Noticeable decreasing work progress and circular sparking

tection guard for cutting 13.

are indications of a diamond cutting disc that has become

When cutting, work with moderate feed, adapted to the mate-

dull. Briefly cutting into abrasive material (e. g. lime-sand

rial being cut. Do not exert pressure onto the cutting disc, tilt

brick) can resharpen the disc again.

or oscillate the machine.

Information on Structures

Do not reduce the speed of running down cutting discs by ap-

Slots in structural walls are subject to the Standard DIN 1053

plying sideward pressure.

Part 1, or country-specific regulations.

The machine must al-

These regulations are to be observed under all circumstanc-

ways work in an up-

es. Before beginning work, consult the responsible structural

grinding motion. Other-

engineer, architect or the construction supervisor.

wise, the danger exists

of it being pushed un-

Maintenance and Service

controlled out of the

cut.

Maintenance and Cleaning

 Before any work on the machine itself, pull the mains

plug.

 For safe and proper working, always keep the machine

and ventilation slots clean.

 In extreme conditions, always use dust extraction as

far as possible. Blow out ventilation slots frequently

When cutting profiles and square bar, it is best to start at the

and install a residual current device (RCD). When work-

smallest cross section.

ing metals, conductive dust can settle in the interior of the

Cutting Stone

power tool. The total insulation of the power tool can be im-

 Provide for sufficient dust extraction when cutting

paired.

stone.

Please store and handle the accessory(-ies) carefully.

 Wear a dust respirator.

If the replacement of the supply cord is necessary, this has to

 The machine may be used only for dry cutting/grinding.

be done by Bosch or an authorized Bosch service agent in or-

der to avoid a safety hazard.

For cutting stone, it is best to use a diamond cutting disc.

When using the cutting guide with dust extraction protection

After-sales Service and Application Service

guard 24, the vacuum cleaner must be approved for vacuum-

Our after-sales service responds to your questions concern-

ing masonry dust. Suitable vacuum cleaners are available

ing maintenance and repair of your product as well as spare

from Bosch.

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 0B8 | (5.8.13)