Impact Drill DV 16V Handling instructions Read through carefully and understand these instructions before use.
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1 2 3 4 5 6 7 8 9 0 A B C D E F G H R L Drill chuck Chuck wrench Tighten Loosen Switch trigger Push button R mark L mark Side handle Depth gauge Change lever Impact Rotation Hook (A) Speed control dial High speed Low speed Stopper 2
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GENERAL OPERATIONAL PRECAUTIONS WARNING! When using electric tools, basic safety precautions should always be followed to reduce the risk of fire, electric shock and personal injury, including the following. Read all these instructions before operating this product and save these instructions. For safe operations: 1. Keep work area clean. Cluttered areas and benches invite injuries. 2. Consider work area environment. Do not expose power tools to rain. Do not use power tools in damp or wet locations. Keep work area well lit. Do not use power tools where there is risk to cause fire or explosion. 3. Guard against electric shock. Avoid body contact with earthed or grounded surfaces (e.g. pipes, radiators, ranges, refrigerators). 4. Keep children and infirm persons away. Do not let visitors touch the tool or extension cord. All visitors should be kept away from work area. 5. Store idle tools. When not in use, tools should be stored in a dry, high or locked up place, out of reach of children and infirm persons. 6. Do not force the tool. It will do the job better and safer at the rate for which it was intended. 7. Use the right tool. Do not force small tools or attachments to do the job of a heavy duty tool. Do not use tools for purposes not intended; for example, do not use circular saw to cut tree limbs or logs. 8. Dress properly. Do not wear loose clothing or jewelry, they can be caught in moving parts. Rubber gloves and non-skid footwear are recommended when working outdoors. Wear protecting hair covering to contain long hair. 9. Use eye protection. Also use face or dust mask if the cutting operation is dusty. 10. Connect dust extraction equipment. If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used. 11. Do not abuse the cord. Never carry the tool by the cord or yank it to disconnect it from the receptacle. Keep the cord away from heat, oil and sharp edges. 12. Secure work. Use clamps or a vise to hold the work. It is safer than using your hand and it frees both hands to operate tool. 13. Do not overreach. Keep proper footing and balance at all times. 14. Maintain tools with care. Keep cutting tools sharp and clean for better and safer performance. Follow instructions for lubrication and changing accessories. Inspect tool cords periodically and if damaged, have it repaired by authorized service center. Inspect extension cords periodically and replace, if damaged. Keep handles dry, clean, and free from oil and grease. 15. Disconnect tools. When not in use, before servicing, and when changing accessories such as blades, bits and cutters. 16. Remove adjusting keys and wrenches. Form the habit of checking to see that keys and adjusting wrenches are removed from the tool before turning it on. 17. Avoid unintentional starting. Do not carry a pluggedin tool with a finger on the switch. Ensure switch is off when plugging in. 18. Use outdoor extension leads. When tool is used outdoors, use only extension cords intended for outdoor use. 19. Stay alert. Watch what you are doing. Use common sense. Do not operate tool when you are tired. 20. Check damaged parts. Before further use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, free running of moving parts, breakage of parts, mounting and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless otherwise indicated in this handling instructions. Have defective switches replaced by an authorized service center. Do not use the tool if the switch does not turn it on and off. 21. Warning The use of any accessory or attachment, other than those recommended in this handling instructions, may present a risk of personal injury. 22. Have your tool repaired by a qualified person. This electric tool is in accordance with the relevant safety requirements. Repairs should only be carried out by qualified persons using original spare parts. Otherwise this may result in considerable danger to the user. PRECAUTIONS ON USING IMPACT DRILL 1. Before drilling into walls, ceilings or floors, ensure that there are no concealed power cables inside. 2. When boring concrete or similar hard materials in IMPACT mode, push the R-side of the push button. (Fig. 8) 7
SPECIFICATIONS Voltage (by areas)* (110V, 220V, 230V, 240V) Power input 590 W* No load speed 0 2900 min -1 Drill chuck capacity 13 mm Steel 13 mm Capacity Concrete 16 mm Wood 25 mm Full load impact rate 34500 min -1 Weight (without cord) 1.5 kg * Be sure to check the nameplate on product as it is subject to change by areas. STANDARD ACCESSORIES (1) Chuck Wrench (Spec. only for chuck fitted with chuck wrench)... 1 (2) Side Handle... 1 (3) Depth Gauge... 1 (4) Plastic Case... 1 Standard accessories are subject to change without notice. OPTIONAL ACCESSORIES (sold separately) (1) Impact Drill Bit (for concrete) 3.2 mm 16 mm dia. (2) Hook (A) Optional accessories are subject to change without notice. APPLICATIONS By combined actions of ROTATION and IMPACT: Boring holes in hard materials (concrete, marble, granite, tiles, etc.) By ROTATIONAL action: Boring holes in metal, wood and plastic. PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power requirements specified on the product nameplate. 2. Power switch Ensure that the power switch is in the OFF position. If the plug is connected to a receptacle while the power switch is in the ON position, the power tool will start operating immediately, inviting serious accident. 3. Extension cord When the work area is removed from the power source. Use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable. 4. Selecting the appropriate drill bit When boring concrete or stone Use the drill bits specified in the Optional Accessories. When boring metal or plastic Use an ordinary metalworking drill bit. When boring wood Use an ordinary woodworking drill bit. However, when drilling 6.5 mm or smaller holes, use a metalworking drill bit. 5. Mounting and dismounting of the bit (Fig. 1) (1) Open the chuck jaws, and insert the bit into the chuck. (2) Place the chuck wrench in each of the three holes in the chuck, and turn it in the clockwise direction (viewed from the front side). Tighten securely. (3) To remove the bit, place the chuck wrench into one of the holes in the chuck and turn it in the counterclockwise direction. 6. Check the rotational direction (Fig. 2) The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the push button. The L-side of the push button is pushed to turn the bit counterclockwise. (The L and R marks are provided on the body.) CAUTION: Always use the impact drill with clockwise rotation, when using it as an impact drill. 7. Fixing the side handle (Fig. 3) Attach the side handle to the mounting part. Rotate the side handle grip in a clockwise direction to secure it. Set the side handle to a position that is suited to the operation and then securely tighten the side handle grip. To attach a depth gauge on the side handle, insert the gauge into the U-shaped groove on the side handle, adjust the position of the depth gauge in accordance with the desired depth of the hole, and firmly tighten the side handle grip. (Fig. 4) 8. IMPACT to ROTATION changeover (Fig. 5) Shift the change lever between the right and left positions to switch between IMPACT (rotation and impact) and ROTATION (rotation only). To bore holes in hard materials such as concrete, stone and tiles, shift the change lever to the righthand position (as indicated by the mark). The drill bit operates by the combined actions of impact and rotation. 8
To bore holes in metal, wood and plastic, shift the change lever to the left-hand position (as indicated by the mark). The drill bit operates by rotational action only, as in the case of a conventional electric drill. CAUTION: Do not use the impact dril in the IMPACT mode if the material can be bored by rotation only. Such action will not only reduce drill afficiency, but may also damage the drill tip. Operating the equipment with the change lever in mid-position may result in damage. When switching, make sure that you shift the change lever to the correct position. 9. Attaching the hook (Optional accessory) (Fig. 6) To attach the hook (A), it is necessary to disassemble the handle portion which covered the tool s electrical system. For your continued safety and electrical shock protection, installing the hook (A) on this drill should ONLY be performed by a HITACHI AUTHORIZED SERVICE CENTER. CAUTION: When the power tool is used with a hook fixed to it, pay attention to the following points: Before hanging the main unit from the waist belt, make sure that the drill has come to a complete stop. While it is suspended from the waist belt, the power plug must be disconnected from the power source. Do not walk about with the power tool hanging from the waist belt. In the case of operation in a high place, it is dangerous to drop the tool accidentally. If the hook is deformed or hung from the wrong position, there is danger that the hook will slip off and the tool will fall. Be careful to avoid danger. In making a through hole, the power tool sometimes shakes violently when the workpiece is pierced, from example. Be careful you are not hurt by the hook even if such situation happens. HOW TO USE 1. Switch operation When the trigger is depressed, the tool rotates. When the trigger is released, the tool stops. The rotational speed of the drill can be controlled by varying the amount that the trigger switch is pulled. Speed is low when the trigger switch is pulled slightly and increases as the trigger switch is pulled more. The desired rotation speed can be pre-selected with the speed control dial. Turn the speed control dial clockwise for higher speed and counterclockwise for lower speed. (Fig. 7) Pulling the trigger and pushing the stopper, it keeps the switched-on condition which is convenient for continuous running. When switching off, the stopper can be disconnected by pulling the trigger again. 2. When using as a Drill or an Impact Drill (1) Pressing force of the drill You cannot drill holes more quickly even if you press the drill with a stronger force than necessary. It not only damages tip of drill bit and decreases the efficiency of operation, but also shortens the life of the drill tip. (2) In case of penetrating holes Drill bits can be broken when the material being drilled is penetrated. It is important to decrease pressing force just before penetrating. CAUTION: In continuous operation, conduct no-load operation for five seconds after completing a drilling job. (3) When a thick drill bit is used Your arm is subjected to larger reaction force when a thicker drill bit is used. Be careful not to be moved by the reaction force. For this, establish a foothold, hold the unit tightly with both hands perpendicularly to the material being drilled. MAINTENANCE AND INSPECTION 1. Inspecting the drill bits Since use of an abraded drill bits will cause motor malfunctioning and degraded efficiency, replace the drill bits with a new one or resharpening without delay when abrasion is noted. 2. Inspecting the mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be loose, retighten them immediately. Failure to do so could result in serious hazard. 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. 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. 5. Service parts list CAUTION: Repair, modification and inspection of Hitachi Power Tools must be carried out by an Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed. MODIFICATIONS: Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancements. Accordingly, some parts may be changed without prior notice. NOTE: Due to HITACHI s continuing program of research and development, the specifications herein are subject to change without prior notice. 9
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Item No. Part Name 1 Flat Hd. Screw (A) (Left Hand) M6 25 2 Chuck Wrench 3 Drill Chuck 4 Retaining Ring For D32 Hole 5 Dust Seal 6 Distance Ring 7 Spindle 8 Spring 9 Ball Bearing (6002VVCMPS2L) 10 Tapping Screw (W/Flange) D4 40 11 Retaining Ring For D15 Shaft 12 Tapping Screw (W/Flange) D4 55 13 Gear Cover 14 Needle D2.5 15 Gear 16 Steel Ball D4.76 17 Inner Cover Ass y 18 Ball Bearing 608DDC2PS2L 19 Change Lever 20 Armature 21 Fan Guide 22 Tapping Screw D4 50 23 Stator 24 Ball Bearing (608ZZC2PS2L) 25 Housing 26 Name Plate 27 Choke Coil 28 Internal Wire 29 Choke Coil 30 Internal Wire 31 Tapping Screw (W/Flange) D4 20 32 Handle Cover 33 Switch 34 Push Button 35 Carbon Brush 36 Brush Holder 37 HITACHI Label 38 Noise Suppressor 39 Earth Terminal 40 Tapping Screw (W/Flange) D4 16 41 Cord Clip 42 Cord Armor 43 Cord 501 Depth Gauge 502 Side Handle 503 Case 11
Hitachi Koki Co., Ltd. 308 Code No. C99126221 Printed in China