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Bosch Gws 22230 H Manual

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    							14 | English 
    1 609 92A 0ML | (9.4.14)Bosch Power Tools
    A properly attached, undam-
    aged quick-clamping nut can 
    be loosened by hand when 
    turning the knurled ring in an-
    ticlockwise direction.
    Never loosen a tight quick-
    clamping nut with pliers. Al-
    ways use the two-pin span-
    ner. Insert the two-pin span-
    ner as shown in the 
    illustration.
    Grinding/Cutting Disc
    Pay attention to the dimensions of the grinding tools. The 
    mounting hole diameter must fit the mounting flange without 
    play. Do not use reducers or adapters.
    When using diamond cutting discs, pay attention that the di-
    rection-of-rotation arrow on the diamond cutting disc and the 
    direction of rotation of the machine (see direction-of-rotation 
    arrow on the machine head) agree.
    See graphics page for the mounting sequence.
    To fasten the grinding/cutting disc, screw on the clamping nut 
    7 and tighten with the two-pin spanner; see Section “Quick-
    clamping Nut ”.
    After mounting the grinding tool and before switching 
    on, check that the grinding tool is correctly mounted 
    and that it can turn freely. Make sure that the grinding 
    tool does not graze against the protection guard or oth-
    er parts.
    A plastic part (O-ring) is fitted around 
    the centring collar of mounting flange 5. 
    If the O-ring is missing or damaged, 
    the mounting flange 5 must be replaced 
    before resuming operation.
    Flap Disc
    For operations with the flap disc, always mount the 
    hand guard 12.
    Rubber Sanding Plate
    For operations with the rubber sanding plate 14, 
    always mount the hand guard 12.
    See graphics page for the mounting sequence.
    Before mounting the rubber sanding plate 14, attach the 
    2spacer discs 13 to the grinder spindle 4 (GWS 20-230 H /
    GWS 22-180 H / GWS 22-230 H/JH / GWS 24-180 H /
    GWS 24-230 H /JH / GWS 26-180 H / GWS 26-230 B/H).
    Screw on the round nut 16 and tighten with the two-pin span-
    ner.
    Note: Expect more force to be required to loosen the round 
    nut 16 (GWS 24-230 JVX).Cup Brush/Disc Brush
    For operations with the cup brush/wheel brush, always 
    mount the hand guard 12.
    See graphics page for the mounting sequence.
    The cup brush/disc brush must be able to be screwed onto 
    the grinder spindle until it rests firmly against the grinder 
    spindle flange at the end of the grinder spindle threads. Tight-
    en the cup brush/disc brush with an open-end spanner.
    Note: Expect more force to be required to loosen the grinding 
    tool (GWS 24-230 JVX).
    Grinding Cup (GWS 20-230 H / GWS 22-180 H /
    GWS 22-230 H /JH / GWS 24-180 H / GWS 24-230 H / JH /
    GWS 26-180 H / GWS 26-230 B / H)
    When working with the grinding cup, mount the special 
    protection guard 24.
    The grinding cup 25 should never project further out of the 
    protection guard 24 than necessary for the respective grind-
    ing application. Adjust the protection guard 24 accordingly to 
    this dimension.
    See graphics page for the mounting sequence.
    Screw on clamping nut 7 and tighten with two-pin spanner 
    26.
    Approved Grinding Tools
    All grinding tools mentioned in these operating instructions 
    can be used.
    The permissible speed [min
    -1] or the circumferential speed 
    [m/s] of the grinding tools used must at least match the values 
    given in the table.
    Therefore, observe the permissible rotational/circumferen-
    tial speed on the label of the grinding tool.
    max.
    [mm][mm]
    Dbd[min-1][m/s]
    180
    2308
    822.2
    22.28500
    650080
    80
    180
    230––8500
    650080
    80
    100 30 M 14 8 500 45
    bd
    D
    D
    D bd
    OBJ_BUCH-827-007.book  Page 14  Wednesday, April 9, 2014  1:53 PM 
    						
    							 English | 15
    Bosch Power Tools1 609 92A 0ML | (9.4.14)
    Rotating the Main Handle 
    (GWS 24-230 JVX / GWS 26-230 B)
    Before any work on the machine itself, pull the mains 
    plug.
    The main handle 34 can be rotated with respect to the ma-
    chine housing toward the left or right in steps of 90°. In this 
    manner, the On/Off switch can be brought into a more con-
    venient position for special working situations, e.g., for cut-
    ting operations using the cutting guide with dust extraction 
    protection guard 18 or for left-handed persons.
    Press the handle unlocking button 35 in the direction of the 
    arrow and at the same time turn the main handle 34 to the re-
    quested position until it latches.
    Rotating the Machine Head (GWS 20-230 H /
    GWS 22-180 H / GWS 22-230 H / JH /
    GWS 24-180 H / GWS 24-230 H / JH /
    GWS 26-180 H / GWS 26-230 B / H)
    Before any work on the machine itself, pull the mains 
    plug.
    The machine head can be 
    rotated with respect to 
    the machine housing in 
    90 °  steps. In this man-
    ner, the On/Off switch 
    can be brought into a 
    more convenient position 
    for special working situa-
    tions, e. g., for cutting op-
    erations using the cutting 
    guide with dust extrac-
    tion protection guard 18 or for left-handed persons.
    Completely unscrew the four screws. Rotate the machine 
    head carefully, without removing it from the housing, to the 
    new position. Screw in and tighten the four screws again.
    Dust/Chip Extraction
    Dusts from materials such as lead-containing coatings, 
    some wood types, minerals and metal can be harmful to 
    one’s health. Touching or breathing-in the dusts can cause 
    allergic reactions and/or lead to respiratory infections of 
    the user or bystanders.
    Certain dusts, such as oak or beech dust, are considered 
    as carcinogenic, especially in connection with wood-treat-ment additives (chromate, wood preservative). Materials 
    containing asbestos may only be worked by specialists.
    – As far as possible, use a dust extraction system suita-
    ble for the material.
    – Provide for good ventilation of the working place.
    – It is recommended to wear a P2 filter-class respirator.
    Observe the relevant regulations in your country for the 
    materials to be worked.
    Prevent dust accumulation at the workplace. Dusts can 
    easily ignite.
    Operation
    Starting Operation
    Observe correct mains voltage! The voltage of the pow-
    er source must agree with the voltage specified on the 
    nameplate of the machine. Power tools marked with 
    230 V can also be operated with 220 V.
    When operating the machine with power from mobile genera-
    tors that do not have sufficient reserve capacity or are not 
    equipped with suitable voltage control with starting current 
    amplification, loss of performance or untypical behavior can 
    occur upon switching on.
    Please observe the suitability of the power generator being 
    used, particularly with regard to the mains voltage and fre-
    quency.
    Switching On and Off
    To start the power tool, press the On/Off switch 2 forward 
    and then down.
    To lock-on the pressed On/Off switch 2, push the On/Off 
    switch 2 further forward.
    To switch off the power tool, release the On/Off switch 2, or 
    when it is locked, briefly press the On/Off switch 2 and then 
    release it.
    To save energy, only switch the power tool on when using it.
    Switch Version without Lock-on (country-specific):
    To start the power tool, press the On/Off switch 2 forward 
    and then down.
    To switch off the machine, release the On/Off switch 2.
    Check grinding tools before using. The grinding tool 
    must be mounted properly and be able to move freely. 
    Carry out a test run for at least one minute with no load. 
    Do not use damaged, out-of-centre or vibrating grind-
    ing tools. Damaged grinding tools can burst and cause in-
    juries.
    Run-on Brake (GWS 24-230 JVX)
    The power tool is equipped with the Bosch 
    Brake System, a patented electromechani-
    cal run-on brake.
    When switching off or when the power sup-
    ply is interrupted, the machine comes to a 
    complete stop within a few seconds. This 
    means a reduction of the run-on time of approx. 70 % when 
    compared with angle grinders without run-on brake, which al-
    lows for the power tool to be placed down sooner.
    35 34
    OBJ_BUCH-827-007.book  Page 15  Wednesday, April 9, 2014  1:53 PM 
    						
    							16 | English 
    1 609 92A 0ML | (9.4.14)Bosch Power Tools
    Note: When the braking effect decreases noticeably, the run-
    on brake has failed. The power tool should be sent immediate-
    ly to an after-sales service (for addresses, see section “After-
    sales Service and Application Service”.
    Reduced starting current (GWS 22-230 JH /
    GWS 24-230 JH / JVX)
    The electronic reduced starting current limits the power con-
    sumption when switching the tool on and enables operation 
    from a 13 ampere fuse.
    Note: When the machine runs at full speed immediately after 
    switching on, the reduced starting current has failed. The 
    power tool should be sent immediately to an after-sales ser-
    vice (for addresses, see section “After-sales Service and Ap-
    plication Service”, page 17).
    Working Advice
    Exercise caution when cutting slots in structural walls; 
    see Section “Information on Structures”.
    Clamp the workpiece if it does not remain stationary 
    due to its own weight.
    Do not strain the machine so heavily that it comes to a 
    standstill.
    After heavily straining the power tool, continue to run 
    it at no-load for several minutes to cool down the acces-
    sory.
    Do not touch grinding and cutting discs before they 
    have cooled down. The discs can become very hot while 
    working.
    Do not use the power tool with a cut-off stand.
    Note: When not using for extended periods, pull the mains 
    plug out of the socket outlet. When the mains plug is inserted 
    and mains voltage is given, the power tool, even when 
    switched off, still consumes a low amount of current.
    Rough Grinding
    Never use a cutting disc for roughing.
    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 
    can be worked.
    Flap discs have a considerably higher service life, lower noise 
    levels and lower sanding temperatures than conventional 
    sanding sheets.
    Cutting Metal
    For cutting with bonded abrasives, always use the pro-
    tection guard for cutting 23/32.
    When cutting, work with moderate feed, adapted to the mate-
    rial being cut. Do not exert pressure onto the cutting disc, tilt 
    or oscillate the machine.
    Do not reduce the speed of running down cutting discs by ap-
    plying sideward pressure.The machine must al-
    ways work in an up-
    grinding motion. Other-
    wise, the danger exists 
    of it being pushed un-
    controlled out of the 
    cut.
    When cutting profiles and square bar, it is best to start at the 
    smallest cross section.
    Cutting Stone
    Provide for sufficient dust extraction when cutting 
    stone.
    Wear a dust respirator.
    The machine may be used only for dry cutting/grinding.
    For cutting stone, it is best to use a diamond cutting disc.
    When using the cutting guide with dust extraction protection 
    guard 18, the vacuum cleaner must be approved for vacuum-
    ing masonry dust. Suitable vacuum cleaners are available 
    from Bosch.
    Switch on the machine 
    and place the front part 
    of the cutting guide on 
    the workpiece. Slide the 
    machine with moderate 
    feed, adapted to the ma-
    terial to be worked.
    For cutting especially hard material, e. g., concrete with high 
    pebble content, the diamond cutting disc can overheat and 
    become damaged as a result. This is clearly indicated by cir-
    cular sparking, rotating with the diamond cutting disc.
    In this case, interrupt the cutting process and allow the dia-
    mond cutting disc to cool by running the machine for a short 
    time at maximum speed with no load.
    Noticeably decreasing work progress and circular sparking 
    are indications of a diamond cutting disc that has become 
    dull. Briefly cutting into abrasive material (e. g. lime-sand 
    brick) can resharpen the disc again.
    Information on Structures
    Slots in structural walls are subject to the Standard DIN 1053 
    Part 1, or country-specific regulations.
    These regulations are to be observed under all circumstanc-
    es. Before beginning work, consult the responsible structural 
    engineer, architect or the construction supervisor.
    OBJ_BUCH-827-007.book  Page 16  Wednesday, April 9, 2014  1:53 PM 
    						
    							 English | 17
    Bosch Power Tools1 609 92A 0ML | (9.4.14)
    Maintenance and Service
    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 
    and install a residual current device (RCD). When work-
    ing metals, conductive dust can settle in the interior of the 
    power tool. The total insulation of the power tool can be im-
    paired.
    Please store and handle the accessory(-ies) carefully.
    If the replacement of the supply cord is necessary, this has to 
    be done by Bosch or an authorized Bosch service agent in or-
    der to avoid a safety hazard.
    After-sales Service and Application Service
    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.
    In all correspondence and spare parts order, please always in-
    clude the 10-digit article number given on the type plate of 
    the machine.
    Great Britain
    Robert Bosch Ltd. (B.S.C.)
    P.O. Box 98
    Broadwater Park
    North Orbital Road
    Denham
    Uxbridge
    UB 9 5HJ
    At www.bosch-pt.co.uk you can order spare parts or arrange 
    the collection of a product in need of servicing or repair. 
    Tel. Service: (0844) 7360109
    E-Mail: [email protected]
    Ireland
    Origo Ltd.
    Unit 23 Magna Drive
    Magna Business Park
    City West
    Dublin 24
    Tel. Service: (01) 4666700
    Fax: (01) 4666888Australia, New Zealand and Pacific Islands
    Robert Bosch Australia Pty. Ltd.
    Power Tools
    Locked Bag 66
    Clayton South VIC 3169
    Customer Contact Center
    Inside Australia:
    Phone: (01300) 307044
    Fax: (01300) 307045
    Inside New Zealand:
    Phone: (0800) 543353
    Fax: (0800) 428570
    Outside AU and NZ:
    Phone: +61 3 95415555
    www.bosch.com.au
    Republic of South Africa
    Customer service
    Hotline: (011) 6519600
    Gauteng – BSC Service Centre
    35 Roper Street, New Centre
    Johannesburg
    Tel.: (011) 4939375
    Fax: (011) 4930126
    E-Mail: [email protected]
    KZN – BSC Service Centre
    Unit E, Almar Centre
    143 Crompton Street
    Pinetown
    Tel.: (031) 7012120
    Fax: (031) 7012446
    E-Mail: [email protected]
    Western Cape – BSC Service Centre
    Democracy Way, Prosperity Park
    Milnerton
    Tel.: (021) 5512577
    Fax: (021) 5513223
    E-Mail: [email protected]
    Bosch Headquarters
    Midrand, Gauteng
    Tel.: (011) 6519600
    Fax: (011) 6519880
    E-Mail: [email protected]
    Disposal
    The machine, accessories and packaging should be sorted for 
    environmental-friendly recycling.
    Do not dispose of power tools into household waste!
    Only for EC countries:
    According to the European Directive 
    2012/19/EU for Waste Electrical and Elec-
    tronic Equipment and its implementation 
    into national right, power tools that are no 
    longer usable must be collected separately 
    and disposed of in an environmentally cor-
    rect manner.
    Subject to change without notice.
    OBJ_BUCH-827-007.book  Page 17  Wednesday, April 9, 2014  1:53 PM 
    						
    							  | 95
    Bosch Power Tools1 609 92A 0ML | (9.4.14)
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    							1 609 92A 0ML | (9.4.14)Bosch Power Tools
    96 |  
    1 605 703 099
    1 603 340 031
    1 603 340 040
    1 607 950 043
    2 602 025 181
    1 601 329 013
    1 600 793 007
    2 605 438 197 1 605 510 179 Ø 180 mm
    1 605 510 180 Ø 230 mm2 605 510 297
    2 605 510 298
    Ø 180 mm
    Ø 230 mm
    2 605 510 299
    2 605 510 300 Ø 180 mm
    Ø 230 mm
    1 605 510 181
    1 605 703 099
    1 603 340 040
    1 607 950 004
    GWS 20-230 H
    GWS 22-180 H
    GWS 22-230 H/JH
    GWS 24-180 H
    GWS 24-230 H/JH
    GWS 26-180 H
    GWS 26-230 B/H
    1 607 000 247
    OBJ_BUCH-827-007.book  Page 96  Wednesday, April 9, 2014  1:53 PM 
    						
    							  | 97
    Bosch Power Tools1 609 92A 0ML | (9.4.14)
    1 600 210 039
    1 603 340 031
    1 603 340 040
    1 607 950 043
    2 602 025 181
    1 601 329 013
    1 600 793 007
    2 605 438 197 2 602 025 284 Ø 180 mm
    2 602 025 285 Ø 230 mm2 605 510 280
    2 605 510 281
    Ø 180 mm
    Ø 230 mm
    2 602 025 282
    2 602 025 283 Ø 180 mm
    Ø 230 mm
    1 607 000 247
    GWS 24-230 JVX
    OBJ_BUCH-827-007.book  Page 97  Wednesday, April 9, 2014  1:53 PM 
    						
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