Hitachi G10SR3 Instruction Manual - Page 8

English ASSEMBLY AND OPERATION APPLICATIONS ⅜ Removal of casting fin and finishing of various type of steel, bronze and aluminum materials and castings. ⅜ Grinding of welded sections or sections cut by means of an acetylene torch. ⅜ Grinding of synthetic resins, slate, brick, marble. WARNING: To avoid the risk of serious injury, NEVER use this grinder with cup wheels and/or saw blades. [Installing Wheel Guard] ⅜ Slightly loosen the screw on the wheel guard. ⅜ Install the wheel guard to the packing gland, turn it to the angle suitable for operation, and make adjustment. ⅜ After the adjustment, ensure that the screw is securely tightened on the wheel guard in order to fix it completely. PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power source requirements specified on the product nameplate. 2. Power switch Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, the power tool will start operating immediately and can cause serious injury. 3. Extension cord When the work area is far away from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable. WARNING: Damaged cord must be replaced or repaired. 4. Check the receptacle If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact a licensed electrician to make appropriate repairs. If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard. 5. Check your work environment Ensure the following before operation; ⅜ No flammable gas, liquid, or object at worksite. ⅜ When grinding thin steel sheet it may cause a high booming noise. To avoid such noise, place a rubber mat under the workpiece. ⅜ Clear the area of children or unauthorized personnel. 6. Mounting the wheel guard Be sure to mount the wheel guard at an angle that will protect the operator's body from injury by a broken wheel piece. 8 Wheel guard Packing gland Fig. 2 WARNING: If the wheel guard is not attached properly, a broken wheel may result in and cause death or serious injury. 7. Thoroughly check that the depressed center wheel is free of cracks, splits and other abnomalities before mounting. Make sure it is firmly clamped and has been properly mounted. Refer to page 9 of this manual for Depressed Center Wheel Assembly and Disassembly 8. Test the grinder before using. Before actually beginning the grinding work, test the grinder by first clearing the area of all other personnel. Make sure the wheel guard is in place and that you are wearing eye protection. Turn the grinder "on", and make sure the grinder runs smoothly and shows no abnormalities. Duration of the trial run is as follows: When depressed center wheel is replaced 3 minutes or more When starting daily work 1 minute or more