User manual BOSCH PWS 850 CE

[. . . ] Always keep the workplace clean, as blends of materials are particularly dangerous. S If the mains cable is damaged or cut through while working, do not touch the cable but immediately pull the mains plug. S Connect machines that are used in the open via a residual current device (RCD) with an actuating current of 30 mA maximum. S When working with the machine, always hold it firmly with both hands and provide for a secure stance. [. . . ] 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. S For all work with the machine, the auxiliary handle 3 must be mounted. Screw the auxiliary handle 3 on the right or left of the machine head depending on the working method. The vibration-dampening auxiliary handle reduces the vibrations, making operation more comfortable and secure. Press the protection guard onto the spindle collar until the collar of the protection guard faces against the flange of the machine and the encoding keys engage in the circular groove at the spindle collar. For work with the rubber sanding pad 13 or with the cup brush 16/disc brush/flap disc, mounting the hand guard 12 (accessory) is recommended. Use only grinding tools with a permissible speed at least as high as the no-load speed of the machine. Grinding and cutting discs become very hot while working; do not touch until they have cooled. For clamping and loosening the grinding tools, lock the grinder spindle 5 with the spindle lock button 4. Actuate the spindle lock button 4 only when the grinder spindle is at a standstill!When using a diamond cutting disc, take care that the direction-of-rotation arrow on the diamond cutting disc and the direction of rotation of the machine (direction-of-rotation arrow on the machine head) agree. Screw on the clamping nut 10 and tighten with the two-pin spanner (see Section "Quick-clamping Nut"). mounting flange for grinding spindle M 14 An O-ring (plastic 8 part) is inserted in the mounting flange 8 around the spigot. If the O-ring is missing or is damaged, it must in all cases be replaced (Order No. Mounting flange for grinding spindle M 10 The mounting flange 19 can be used on both sides. 19 For diamond cutting discs it must be positioned on the grinding spindle 5 and turned through 180°. 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 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. [. . . ] With the flap disc (accessory), curved surfaces and profiles (contour sanding) can be worked. Flap discs have a considerably higher service life than sanding sheets, lower noise level and lower sanding temperatures. Do not reduce the speed of running down cutting discs by applying sideward pressure. Otherwise, the danger exists of it being pushed uncontrolled out of the cut. [. . . ]