GWS 20230 JH Professional - Grinder BOSCH - Free user manual and instructions

USER MANUAL GWS 20230 JH Professional BOSCH

Original instructions

(9) Clamping nut (10) Two-pin spanner for clamping nut

(11) Quick-clamping nut

(13) Protective guard for cutting

(17) Rubber sanding pad

(21) Extraction guard for cutting with cutting guides

(22) Diamond cutting disc

(23) Handle (insulated gripping surface)

Accessories shown or described are not included with the product as standard. You can find the complete selection of accessories in our accessories range. Technical Data Angle grinder GWS 20-230 H GWS 20-230 JH Article number 3 601 H50 L.. 3 601 H50 M.. Rated power input W 2000 2000 Power output W 1250 1250 Rated speed min

Max. grinding disc diameter mm 230 230 Grinding spindle thread M 14 M 14 Max. thread length of grinding spindle mm 25 25 Restart protection – ● Starting current limitation – ● Weight according to EPTA-Procedure01:2014 – with low-vibration auxiliary handle kg 5.2 5.2 – with standard auxiliary handle kg 5.1 5.1 Protection class / II / II The specifications apply to a rated voltage [U] of 230 V. These specifications may vary at different voltages and in country-specific models. When switching on power tools with starting current limitation, the voltage drops briefly. Interference with other equipment may occur in the event of unfavourable conditions in the electricity supply. Malfunctions are not expected if the impedances in the electricity supply are below

(triax vector sum) and uncertainty K determined according to EN60745-2-3: Surface grinding (roughing):

The vibration level given in these instructions has been measured in accordance with a standardised measuring pro- cedure and may be used to compare power tools. It can also be used for a preliminary estimation of exposure to vibra- tion. The stated vibration level applies to the main applications of the power tool. However, if the power tool is used for differ- ent applications, with different application tools or poorly maintained, the vibration level may differ. This can signific- antly increase the exposure to vibration over the total work- ing period. To estimate the exposure to vibration accurately, the times when the tool is switched off or when it is running but not ac- tually being used should also be taken into account. This can significantly reduce the exposure to vibration over the total working period. Implement additional safety measures to protect the oper- ator from the effects of vibration, such as servicing the power tool and application tools, keeping the hands warm, and organising workflows correctly. Fitting Fitting protective equipment u Pull the plug out of the socket before carrying out any work on the power tool. Note: If the grinding disc breaks during operation or the holding fixtures on the protective guard/power tool become damaged, the power tool must be sent to the after-sales ser- vice immediately; see the "After-Sales Service and Applica- tion Service" section for addresses. Protective guard for grinding Place the protective guard (5) on the spindle collar. Adjust the position of the protective guard (5) to the requirements of the operation and lock the protective guard (5) with the locking screw (6). u Adjust the protective guard (5) such that sparking in the direction of the operator is prevented. Protective guard for cutting u Always use the protective guard for cutting (13) when cutting bonded abrasives. u Provide sufficient dust extraction when cutting stone. The protective guard for cutting (13) is fitted in the same way as the protective guard for grinding (5). Extraction guard for cutting with a guide block The extraction guard for cutting with a guide block (21) is fit- ted in the same way as the protective guard for grinding (5). Side handle u Do not operate your power tool without the side handle (3). Screw the side handle (3) on the left or right of the machine head depending on how your are working. Hand guard u Always fit the hand guard (15) when working with the rubber sanding plate (17) or with the cup brush/disc brush/flap disc. Attach the hand guard (15) to the side handle (3). Fitting the abrasive tools u Pull the plug out of the socket before carrying out any work on the power tool. u Do not touch grinding and cutting discs until they have cooled down. The discs can become very hot while work- ing. Clean the grinding spindle (4) and all the parts to be fitted. Lock the grinding spindle with the spindle lock button (1) before clamping and releasing the abrasive tools. u Do not press the spindle lock button while the grind- ing spindle is moving. The power tool may become dam- aged if you do this. Grinding/cutting disc Pay attention to the dimensions of the abrasive tools. The diameter of the hole must match that of the mounting flange. Do not use an adapter or reducer. When using diamond cutting discs, ensure that the arrow in- dicating the direction of rotation on the diamond cutting disc matches the direction of rotation of the power tool (see the direction of rotation arrow on the machine head). See the graphics page for assembly instructions. To fasten the grinding/cutting disc, screw on the clamping nut(9) and tighten with the two-hole spanner(see " Quick- clamping nut ", page20). u After fitting the abrasive tool, check that the abrasive tool is fitted correctly and can turn freely before switching on the power tool. Make sure that the abras- ive tool does not brush against the protective guard or other parts. A plastic part (O-ring) is fitted around the cent- ring collar in the mounting flange (7). If the O- ring is missing or damaged, the mounting flange (7) must be replaced before operation can resume. Flap disc u Always fit the hand guard (15) when working with the flap disc. Bosch Power Tools 1 609 92A 6K7 | (08.07.2021)20 | English Rubber sanding pad u Always fit the hand guard (15) when working with the rubber sanding pad (17). See the graphics page for fitting instructions. Before fitting the rubber sanding pad (17), place the two spacer discs (16) on the grinding spindle (4). Screw on the round nut (19) and tighten with the two-pin spanner. Cup brush/disc brush u Always fit the hand guard (15) when working with the cup brush or disc brush. See the graphics page for fitting instructions. The cup brush/disc brush must be screwed onto the grinding spindle until it rests firmly against the grinding spindle flange at the end of the grinding spindle thread. Tighten the cup brush/disc brush with an open-ended spanner. Quick-clamping nut To change the abrasive tool easily without having to use any additional tools, you can use the quick-clamping nut (11) in- stead of the clamping nut (9). u The quick-clamping nut (11) may be used only for grinding or cutting discs. Only use quick-clamping nuts (11) that are in good work- ing order and not damaged. When screwing on, make sure that the printed side of the quick-clamping nut (11) is not facing the grinding disc; the arrow must be pointing towards the index mark (24). (24) Press the spindle lock but- ton (1) to lock the grinding spindle. To tighten the quick-clamping nut, turn the grinding disc firmly clockwise. If the quick-clamping nut has been attached correctly and is not damaged, you can loosen it by hand by turning the knurled ring an- ticlockwise. If the quick- clamping nut is stuck, do not attempt to loosen it with pliers – always use the two-pin spanner. Posi- tion the two‑pin spanner as shown in the figure. Approved abrasive tools You can use all the abrasive tools mentioned in these operat- ing instructions. The permissible speed [min

] or the circumferential speed [m/s] of the abrasive tools used must at least match the val- ues given in the table. It is therefore important to observe the permissible rota- tional/circumferential speed on the label of the abrasive tool. max. [mm] [mm] D b d [min

EU Declaration of Conformity We declare under our sole responsibility that the stated products comply with all applicable provisions of the directives and regulations listed below and are in conformity with the following standards. Technical file at: * Angle grinder Article number

We declare under our sole responsibility that the stated products comply with all applicable provisions of the regulations lis- ted below and are in conformity with the following standards. Technical file at: Robert Bosch Ltd. (PT/SOP-GB), Broadwater Park, North Orbital Road, Uxbridge UB9 5HJ, United Kingdom The Supply of Machinery (Safety) Regulations 2008 The Electromagnetic Compatibility Regulations 2016 The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 EN 60745-1:2009+A11:2010 EN 60745-2-3:2011+A2:2013+ A11:2014+A12:2014+A13:2015 EN 55014-1:2017+A11:2020 EN 55014-2:2015

EN IEC 61000-3-2:2019

EN 61000-3-3:2013+A1:2019 EN IEC 63000:2018 Robert Bosch Power Tools GmbH, 70538 Stuttgart, Germany represented (in terms of the above regulations) by Robert Bosch Limited, Broadwater Park, North Orbital Road, Uxbridge UB9 5HJ, United Kingdom Vonjy Rajakoba Managing Director - Bosch UK Martin Sibley Head of Sales Operations and Aftersales Robert Bosch Ltd. Broadwater Park, North Orbital Road, Uxbridge UB9 5HJ, United Kingdom, as authorised representative acting on behalf of Robert Bosch Power Tools GmbH, 70538 Stuttgart, Germany Place of issue: Uxbridge Date of issue: 06/05/2021 Bosch Power Tools 1 609 92A 6K7 | (08.07.2021)