User manual BOSCH PWS 1900 REV 5-2009

[. . . ] * The values given are valid for nominal voltages [U] of 230/240 V. For lower voltages and models for specific countries, these values can vary. * Cutting of stone is permitted only with the cutting guide (accessory). The machine is intended for cutting, roughing and brushing metal and stone materials without using water. [. . . ] The grinding tool runs on after the machine is switched off. S Never allow children to use the machine. S Bosch is only able to ensure perfect operation of the machine if the original accessories intended for it are used. These regulations are to be observed under all circumstances. Before beginning work, consult the responsible structural engineer, architects or the construction supervisor. S Before any work on the machine itself, pull the mains plug. S For work with grinding or cutting discs, the protection guard 6 must be mounted. Place the protection guard 6 onto the spindle collar of the machine head as shown in the illustration. The encoding keys of the protection guard must match with the respective recesses on the spindle collar. Adjust the protection guard 6 in such a manner that sparks are not emitted in the direction of the operator. Note: Encoding keys on the protection guard 6 ensure that only a protection guard that fits the machine type can be mounted. The bore of the diamond cutting disc (Ø 20 mm) must fit the spigot of the mounting flange 19 without any play. After mounting the grinding tool and before switching on, check that the grinding tool is correctly mounted and that it can turn freely. Depending on the application, remove the protection guard 6 and mount the hand guard 12. for mounting , see the illustration page. Screw on the round nut 15 and tighten with the two-pin spanner. (for M 14 grinder spindle) Depending on the application, remove the protection guard 6 and mount the hand guard 12. The grinding tool must be able to be screwed onto the grinding spindle 5 until it rests firmly against the grinder spindle flange at the end of the grinder spindle threads. Grinding tools can then be mounted without using tools. The quick-clamping nut 11 may be used only for grinding and cutting discs. use only a flawless , undamaged quick-clamping nut 11. When screwing on, take care that the side with printing does not point to the grinding disc. [. . . ] Work with moderate feed, adapted to the material being machined. Do not reduce the speed of running down cutting discs by applying sideward pressure. the direction in which the cutting is performed is important. The machine must always work in an up-grinding motion. [. . . ]