Hitachi G18DL Instruction Manual - Page 14

English GRINDER OPERATION WARNING: Do not press the grinder forcibly against the CAUTION: To extend the lifetime, the lithium-ion battery equips with the protection function to stop the output. Therefore, if the tool is overloaded, the surface to be ground. Heavy pressure can result in wheel breakage and serious injury. It can also damage the surface being ground or damage the grinder's motor. motor may stop. However, this is not the trouble but the result of protection function. In this case, 4. Use proper grinding angle. release the switch of tool and eliminate the causes Grind only with the wheel's edge by lifting the of overloading. grinder 15° to 30°, as shown in Fig. 7. NOTE: CAUTION: ⅜ To prevent injuries, this product has a function that Do not use the entire surface of the depressed prevents unexpected motor rotation when the center wheel. Use only the edge of the depressed battery is inserted. The motor will not run if the battery is inserter while the switch is still ON. After center wheel. installing the battery, turn the switch off and then back on again. ⅜ The G14DL and G18DL models are equipped with a protection function that will shut down the tool in the event of an overload. Should the tool shut down due to an overload, turn the power off and then turn it back on again. 5. Move the grinder in the proper direction. When using a new depressed center wheel in direction A (Fig. 7), the wheel edge may cut into the workpiece. In this case, grind in direction B (Fig. 7). Once the wheel edge is worn, the workpiece can be ground in both directions. An overload that stops tool operation and lasts more than 10 seconds may not be released by turning the power off and on. Should this happen, remove the battery from the tool and reinstall it before turning on the power switch. 1. Hold the grinder firmly by its housing and side handle (Fig. 1). The grinder produces a counterforce which must be controlled by firmly holding onto the grinder. 2. Turn the grinder "on". (Fig. 6) While holding the grinder firmly, use one finger to slide the switch to the "on" position. 15° - 30° A B Fig. 7 Switch NOTE: The wheel provided (resinoid wheel) is rated as Class A grain and # 36 grain size. It is most suitable for heavy grinding of steel and other types of materials. ON OFF 6. Adjust operation to desired finish. For a fine finish, decrease pressure by lifting slightly. Grind slowly and at the appropriate speed. Fig. 6 3. Use light grinding pressure. There is no need to press hard when grinding. Usually the grinder's own weight is sufficient to allow the required light contact with the surface to be ground. CAUTION: The revolving depressed center wheel will create air turbulence. Do no lay the grinder down in areas of dust or dirt until it has come to a complete stop. 14