Hitachi DH30PC2 Instruction Manual - Page 16

English 9. Using the side handle When you wish to change a position of the side handle, turn grip of the side handle counterclockwise to loosen it, and then fasten it firmly. CAUTION: When boring a hole, there can be a case where the machine attempts to rotate by the reaction at the time of penetrating a concrete wall and/or when a tip of the blade comes in contact with the rebar. Firmly fasten the side handle and hold the machine with both of your hands. Unless you hold it securely, an accident can occur. HOW TO USE THE CORE BIT (FOR LIGHT LOAD) When boring penetrating large hole use the core bit (for light load). At that time use with the center pin and the core bit shank provided as optional accessories. 1. Mounting CAUTION: Be sure to turn power OFF and disconnect the plug from the receptacle. Core bit Core bit shank Thread (1) Mount the core bit to the core bit shank. (Fig. 14) Lubricate the thread of the core bit shank to facilitate disassembly. (2) Mount the core bit shank to the rotary hammer. (Fig. 15) (3) Insert the center pin into the guide plate until it stops. (4) Engage the guide plate with the core bit, and turn the guide plate to left or right so that it does not fall even if it faces downward. (Fig. 16) Fig. 14 Fig. 15 Center pin Core bit Guide plate Core bit tip Fig. 16 16