Hitachi Sander/Polisher11Amp Instruction Manual - Page 12

English ⅷ For use as a Sander 1. This unit is designed to provide sufficient polishing (sanding) power with the disc pressed lightly against the sanding/polishing surface: it is equipped with an electronic control circuit to ensure that the motor will not slow down even when loaded. There is threfore no need to press the sanding disc hard against the surface; doing so can overload the motor, subsequently causing the overload cut device to step into operation by cutting the motor's power supply. If this should happen, cut the power switch and turn it back on to reset the unit: it will resume rotation at the correct motor speed. 2. Rather than applying the entire disc surface to the metal surface to be ground, use the sander by inclining it approximately 15°~25° to grind with the disc peripheral portion. (Fig. 3). 15° - 25° 3. Precaution after use Do not lay the sander polisher down immediately after use in a place where there Fig. 3 are many shavings and much dirt and dust until it has completely stopped revolving. ⅷ For use as a Polisher 1. Curved surface as well as plain one is treated for finishing. It is recommended to hold the polisher without pushing on the material, and make the best of its own weight as the excess pressure on the polishing surface will not only bring unsatisfactory result but also put unnecessory load on the motor. 2. Polishing compound or wax are used corresponding to the state of finishing and the maximum polishing effect will be attained when the following method is taken. Polishing with a sander using fine sanding disc. Polishing with wool bonnet using compound substance final waxing. First put the compound and wax in small quantity on the surface to be polished, then, give a polish with the wool bonnet. CAUTION: Carefully guard against permitting the cord to touch the wool bonnet or sanding disc during operation. If the cord touches them, there is danger that it may become entangled. 12