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CONTENTS English Page Page IMPORTANT SAFETY INFORMATION ................. 3 NAME OF PARTS ................................................ 11 MEANINGS OF SIGNAL WORDS ......................... 3 SPECIFICATIONS ................................................ 13 SAFETY ...................................................................... 4 ASSEMBLY AND OPERATION ............................... 14 GENERAL SAFETY RULES – FOR ALL APPLICATIONS .................................................... 14
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English IMPORTANT SAFETY INFORMATION Read and understand all of the safety precautions, warnings and operating instructions in the Instruction Manual before operating or maintaining this power tool. Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures. Basic safety
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English SAFETY GENERAL SAFETY RULES – FOR ALL BATTERY OPERATED TOOLS WARNING: Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury. SAVE THESE INSTRUCTIONS 1. Work Area (1) Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents. (2) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools creat
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English 4. Tool Use and Care (1) Use clamps or other practical way to secure and support the workpiece to a stable platform. Holding the work by hand or against your body is unstable and may lead to loss of control. (2) Do not force tool. Use the correct tool for your application. The correct tool will do the job better and safer at the rate for which it is designed. (3) Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the switch is dangerous and must
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English SPECIFIC SAFETY RULES AND SYMBOLS 1. Hold tools by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live” wire will make exposed metal parts of the tool “live” and shock the operator. 2. ALWAYS wear ear plugs when using the tool for extended periods. Prolonged exposure to high intensity noise can cause hearing loss. 3. Never touch moving parts. Never place your hands, fingers or other body parts near the tool’s mov
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English 12. Never use a tool which is defective or operating abnormally. If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for repairs by a Hitachi authorized service center. 13. Carefully handle power tools. Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged. 14. Do not wipe plastic parts with solvent. Solvents such as gasoline, thinner, b
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English IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE CORDLESS ROTARY HAMMER WARNING: Death or serious bodily injury could result from improper or unsafe use of the cordless rotary hammer. To avoid these risks, follow these basic safety instructions: 1. NEVER touch the tool bit with bare hands after operation. 2. NEVER wear gloves made of stuff liable to roll up such as cotton, wool cloth or string, etc. 3. ALWAYS attach the side handle and securely grip the Cordless Rotary Hammer. 4. ALWAYS be c
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English Table 1 RECOMMENDED MINIMUM AWG SIZE FOR EXTENSION CORDS FOR BATTERY CHARGERS AC Input Rating Amperes* AWG Size of Cord Equal to or but less Length of Cord, Feet (Meter) greater than than 25 (7.5) 50 (15) 100 (30) 150 (45) 0 2 18 18 18 16 2 3 18 18 16 14 3 4 18 18 16 14 * If the input rating of a battery charger is given in watts rather than in amperes, the corresponding ampere rating is to be determined by dividing the wattage rating by the voltage rating-for example: 1250 watts = 10 am
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English 3. NEVER short-circuit the battery. 4. NEVER insert any objects into the battery charger’s air vents. Electric shock or damage to the battery charger may result. 5. NEVER charge outdoors. Keep the battery away from direct sunlight and use only where there is low humidity and good ventilation. 6. NEVER charge when the temperature is below 32°F (0°C) or above 104°F (40°C). 7. NEVER connect two battery chargers together. 8. NEVER insert foreign objects into the hole for the battery or the b
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English FUNCTIONAL DESCRIPTION NOTE: The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool. NEVER operate, or attempt any maintenance on the tool unless you have first read and understood all safety instructions contained in this manual. Some illustrations in this Instruction Manual may show details or attachments that differ from those on your own power tool. MODEL DH24DV (BFK): with charger (UC24YFB) and case DH24
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English Battery (EB2420) Terminal Hole Latch Nameplate Fig. 1 2. Battery Charger (UC24YFB) Pilot Lamp Guide Rail Caution Plate Nameplate Fig. 2 12 01e_dh24dv_e.p65 12 4/13/04, 11:29 PM
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English SPECIFICATIONS 1. Cordless Rotary Hammer (DH24DV) Motor DC motor No-load speed SAVE/POWER 0–500/min. / 0–1000/min. Full-load impact rate SAVE/POWER 0–2200/min. / 0–4500/min. Concrete 15/16″ (24 mm) Capacity Drilling Steel 1/2″ (13 mm) Wood 1–3/16″ (30 mm) * Nickel cadmium battery Battery (EB2420) Voltage ........ DC 24 V Weight 8.9 lbs. (4.0 kg) * Do not use the “SAVE” mode when boring holes with the wood drill. There is a likelihood that the motor will burn out. 2. Battery Charger (UC2
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English ASSEMBLY AND OPERATION APPLICATIONS Rotation and striking function Drilling anchor holes Drilling holes in concrete Drilling holes in tile Rotation only function Drilling in steel or wood Tightening machine screws, wood screws REMOVAL AND INSTALLATION METHOD OF BATTERY 1. Battery removal Hold the handle tightly and push the battery latches to remove the battery (See Figs. 3 and 4). 2. Battery installation Insert the battery aligning both guide rail of battery and body. Make su
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English WARNING: Do not use the electrical cord if damaged. Have it repaired immediately. 2. Insert the battery to the battery charger. Insert the battery into the battery charger as shown in Fig. 5. Make sure the battery is fully seated in the battery charger. Before insert After insert Fig. 5 3. Charging When the battery is connected to the battery charger, charging will commence and the pilot lamp will light in red. (See Table 2) NOTE: If the pilot lamp flikers in red, pull out the plug fr
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English Regarding the temperature of the rechargeable battery The temperatures for rechargeable batteries are as shown in the table below, and batteries that have become hot should be cooled for a while before being recharged. Table 3 Rechargeable batteries Temperatures at which the battery can be recharged 23°F — 140°F EB2420 (–5°C — 60°C) Regarding recharging time Table 4 shows the recharging time required according to the type of battery. Table 4 Recharging time (approx. min.) at 68°F (2
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English How to make the batteries perform longer (1) Recharge the batteries before they become completely exhausted. When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter. (2) Avoid recharging at high temperatures. A rechargeable battery will be hot immediately after use. If such a battery is recharged immediately after use
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English 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. 10) CAUTION: Part of Drill bit Grip The dust cup and dust collector (B) are for exclusive SDS-plus use of concrete drilling work. Do not use them for shank wood or metal drilling work. Fig. 8 Insert dust collector (B) completely into the chuck part of the main unit. When turning the rotary hammer on while dust collector (B)
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English Push Push button button Push Push Center Push the the position button R L side side R L indication indication (a) Forward rotation (b) Reverse rotation (c) Does not rotate Fig. 11 Diagram seen from the handle side HOW TO USE 1. Switch operation When the switch trigger is depressed, the tool rotates. When the switch trigger is released, the tool stops. “ ” The rotational speed of the rotary hammer can be mark controlled by varying the amount that the switch trigger is pulled. Speed is
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English 3. Rotation only Align the “ ” mark with the “ ” mark by rotating the change lever to set the “Rotation only” mode. (Fig. 12) To drill a wood or metal material using the separately sold drill chuck and chuck adaptor, proceed as follows. Installing drill chuck and chuck Drill chuck adaptor (Fig. 14): Grip (1) Attach the drill chuck to the chuck adaptor. Chuck adaptor (2) The part of the SDS-plus shank is the same as the Part of Front drill bit. Therefore, refer to the item of “Mounting SD
