[. . . ] Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. The term “power tool” in the warnings refers to your mainsoperated (corded) power tool or battery-operated (cordless) power tool. ς Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. ς Keep children and bystanders away while operating a power tool. [. . . ] For this, lightly press the base together and remove it from the guide 23. Pull off the “Cut Control” viewing window 12 from base 13 and clamp it into the holders on the sliding shoe 11. Operation Operating Modes  Before any work on the machine itself, pull the mains plug. Orbital Action Settings The four orbital action settings allow for optimal adaptation of cutting speed, cutting capacity and cutting pattern to the material being sawed. The orbital action can be adjusted with the adjusting lever 8, even during operation. No orbital action Small orbital action Medium orbital action Large orbital action The optimal orbital action setting for the respective application can be determined through practical testing. The following recommendations apply: – Select a lower orbital action setting (or switch it off) for a finer and cleaner cutting edge. € For soft materials and when sawing in the direction of the grain, work with maximum orbital action. Adjusting the Cutting Angle The base plate 7 can be swivelled by 45° to the left or right for mitre cuts. The dust cover 10 and the splinter guard 22 cannot be used when performing mitre cuts. If required, remove the dust cover 10 (see “Dust Cover”, page 17) and take off the splinter guard 22 (see “Splinter Guard”, page 17). PST 900 PEL/PST 9500 PEL (see figure G): – Pull the saw blade storage 21 out of the base plate 7. € Loosen the screw 24 and lightly slide the base plate 7 toward the vacuum connection 5. 14) 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-treatment additives (chromate, wood preservative). € As far as possible, use a dust extraction system suitable for the material. Observe the relevant regulations in your country for the materials to be worked. Dust Cover (see figure F) Mount the dust cover 10 before connecting the machine to the dust extraction. Mount the dust cover 10 to the machine in such a manner that the prongs engage into the openings of the housing. Book Page 18 Thursday, November 13, 2014 4:38 PM 18 | English – For adjustment of precise mitre angles, the base plate has adjustment notches on the left and right at 0°, 22. Swivel the base plate 7 to the desired position according to the scale 25. [. . . ] Therefore, do not saw materials that produce a lot of dust from below or overhead. When working metals, conductive dust can settle in the interior of the power tool. If worn, it must be replaced through an authorised Bosch after-sales service agent. If the replacement of the supply cord is necessary, this has to be done by Bosch or an authorized Bosch service agent in order to avoid a safety hazard. [. . . ]