Hitachi DH25PB Instruction Manual - Page 11
Mounting the drill bit Fig. 2, Installation of dust cup or dust collector, B Optional accessories - rotary hammer drill
UPC - 717709007611
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English 6. Mounting the drill bit (Fig. 2) (1) To attach a drill bit (SDS-plus shank), fully pull the grip in the direction of the arrow as shown in Fig. 2 and insert the drill bit as far as it will go while manually turning. (2) By releasing the grip, the drill bit will be secured. (3) To remove the drill bit, fully pull the grip in the direction of the arrow and pull out the drill bit. 7. Installation of dust cup or dust collector (B) (Optional accessories) (Fig. 3, Fig. 4) When using a rotary hammer for upward drilling operations attach a dust cup or dust collector (B) to collect dust or particles for easy operation. ⅜ Installing the dust cup Use the dust cup by attaching to the drill bit a shown in Fig. 3. When using a bit which has big diameter, enlarge the center hole of the dust cup with this rotary hammer. ⅜ Installing dust collector (B) When using dust collector (B), insert dust collector (B) from the tip of the bit by aligning it to the groove on the grip (Fig. 4) Front cap Part of SDS-plus shank Drill bit Grip Fig. 2 Dust cap Fig. 3 Dust collector (B) CAUTION: ⅷ The dust cup and dust collector (B) are for exclusive use of concrete drilling work. Do not use them for wood or metal drilling work. ⅷ Insert dust collector (B) completely into the chuck part of the main unit. Fig. 4 ⅷ When turning the rotary hammer on while dust collector (B) is detached from a concrete surface, dust collector (B) will rotate together with the drill bit. Make sure to turn on the switch after pressing dust cup on the concrete surface. (When using dust collector (B) attached to a drill bit that has more than 7-15/32" (190 mm) of overall length, dust collector (B) cannot touch the concrete surface but rotates. Therefore please use dust collector (B) by attaching to drill bits which have 6-17/32" (166 mm), 6-19/64" (160 mm) and 4-21/64" (110 mm) overall length. ⅷ Dump particles after every two or three holes when drilling. ⅷ Please replace the drill bit after removing dust collector (B). 8. Selecting the driver bit Screw heads or bits will be damaged should an inappropriate bit for the screw diameter be employed to drive in the screws. 11