Assessments - 4, GPA: 4
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5 English 8. Mounting the bit For details, refer to the item “Mounting and dismounting the hex-socket or the bit”. Self-drilling screw Fig. 6 1 – 1.5 mm Sub-Stopper (A) HOW TO USE THE SCREW DRIVER 1. Switch operation and rotational speed adjustment Bit rotational speed can be regulated between 0 – 2600/min (W6VB2) or 0 – 1700/ min (W8VB) varying the degree by which the trigger switch is pulled. Rotational speed increases as the trigger switch is pulled, and reaches a maximum speed of 2600/min (W6VB2) or 1700/min (W8VB) when the trigger switch is pulled fully. To facilitate continuous operation, pull the trigger switch and depress the switch stopper. The switch will then remain ON even when the finger is removed. By pulling the trigger switch again, the switch stopper is disengaged and the switch is turned OFF when the trigger switch is released. 2. Screw driver operation When the switch is turned ON, the motor starts to run but the hex-socket (or the bit) does not rotate. Attach the hex-socket to the screw head groove, and push the screw driver against the screw. The hex-socket then rotates, tightening the screw. CAUTION Ensure that the screw driver is held truly perpendicular to the head of the screw. If held at an angle, the driving force will not be fully transferred to the screw, and the screw head and/or hex-socket will be damaged. Hex-socket rotation stops when pushing force is released. 3. Direction of hex-socket rotation The hex-socket rotates clockwise (viewed from the rear side) when the reversing switch lever is set to the “R” side position. When the lever is set to the “L” side position, the hex-socket rotates counterclockwise, and can be used to loosen and retract screws. CAUTION Never change the direction of hex-socket rotation while the motor is running. To do so would seriously damage the motor. Turn the power switch OFF before changing the direction of hex-socket rotation. English 4. Tightening Self-drilling screw When the supplied magnet bit holder is used to tighten the Self-drilling screw into a steel plate, cut material stuck in the magnet bit will degrade the work efficiency. To prevent this, the non-magnetic bit holder (optional accessory) is recommended. The stainless locator with bushing (optional accessory) will prevent the bushing from being worn. MOUNTING AND DISMOUNTING THE HEX-SOCKET OR THE BIT CAUTION Be sure to switch power OFF and disconnect the plug from receptacle to avoid serious trouble. 1. Dismounting the hex-socket (Fig. 7) (1) While rotating the Sub-Stopper pull it out from the locator. (2) Remove the hex-socket, hold it with the opposite side of bit with hand or vise and pull out the bit with pliers. 2. Dismounting the bit (Fig. 8) Remove the sub-stopper (A) alike case of hex-head socket and remove the bit holder, then pull out the bit with pliers. 3. Dismounting the bit (Fig. 9) Remove the sub-stopper (C) alike case of hex-head socket and remove the bit holder, then pull out the bit with pliers. 4. Mounting the hex-socket or the bit Install the bit in the reverse order to removel. Sub-Stopper (B) Magnetic hex. socket Fig. 7 Sub-Stopper (A) Bit holder (Short type) Bit Fig. 8 Sub-Stopper (C) Bit Bit holder Fig. 9 English MAINTENANCE AND INSPECTION WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection. 1. Inspecting the hex. socket (or bit): Since continued use of a worn hex. socket (bit) will damage screw heads, replace the hex. socket (bit) with a new one as soon as excessive wear is noticed. 2. Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loosened, retighten them immediately. WARNING: Using this screw driver with loosen screws is extremely dangerous. 3. Maintenance of the motor The motor unit winding is the very “heart” of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water. 4. Cleaning the unit exterior Wipe off oil and stain on the unit exterior with a dried rag or a rag moistened with soapy water. 5. Inspecting the carbon brushes For your continued safety and electrical shock protection, carbon brush inspection and replacement on this tool should ONLY be performed by a HITACHI AUTHORIZED SERVICE CENTER. 6. Service and repairs All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY. English ACCESSORIES WARNING: Accessories for this power tool are mentioned in this Instruction Manual. The use of any other attachment or accessory can be dangerous and could cause injury or mechanical damage. NOTE: Accessories are subject to change without any obligation on the part of the HITACHI. STANDARD ACCESSORIES (1) Magnetic hex. socket (H=5/16” (7.94 mm)) (Code...
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