000Book_DS18DBL2_ChS.indb

Transcription

1 Cordless Driver Drill / Impact Driver Drill DS 18DBL2 DV 18DBL2 English DS18DBL2 DV18DBL2 Keep for future reference Handling instructions

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24 English CONTENTS GENERAL POWER TOOL SAFETY WARNINGS...24 CORDLESS DRIVER DRILL / IMPACT DRIVER DRILL SAFETY WARNINGS...27 ADDITIONAL SAFETY WARNINGS...27 CAUTION ON LITHIUM-ION BATTERY...28 REGARDING LITHIUM-ION BATTERY TRANSPORTATION...29 SYMBOLS...30 SPECIFICATIONS...30 STANDARD ACCESSORIES...31 APPLICATIONS...31 BATTERY REMOVAL / INSTALLATION...32 CHARGING...32 PRIOR TO OPERATION...34 HOW TO USE...34 OPERATIONAL CAUTIONS...42 MAINTENANCE AND INSPECTION...42 TROUBLESHOOTING...44 SELECTING ACCESSORIES...45 GENERAL POWER TOOL SAFETY WARNINGS WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fi re and/or serious injury. Save all warnings and instructions for future reference. The term power tool in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. 1) Work area safety a) Keep work area clean and well lit. Cluttered or dark areas invite accidents. b) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes. c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control. 2) Electrical safety a) Power tool plugs must match the outlet. Never modify the plug in any way. 24

25 English Do not use any adapter plugs with earthed (grounded) power tools. Unmodifi ed plugs and matching outlets will reduce risk of electric shock. b) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded. c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock. e) When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock. f) If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock. 3) Personal safety a) Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury. b) Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. c) Prevent unintentional starting. Ensure the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your fi nger on the switch or energising power tools that have the switch on invites accidents. d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. f) Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts. g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards. 25

26 English 4) Power tool use and care a) Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed. b) Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired. c) Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally. d) Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users. e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power toolʼs operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools. f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation. 5) Battery tool use and care a) Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fi re when used with another battery pack. b) Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fi re. c) When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fi re. d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns. 26

27 27 English 6) Service a) Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained. CAUTION Keep children and infirm persons away. When not in use, tools should be stored out of reach of children and infirm persons. CORDLESS DRIVER DRILL / IMPACT DRIVER DRILL SAFETY WARNINGS <DV18DBL2> 1. Wear ear protectors when impact drilling. Exposure to noise can cause hearing loss. <DS18DBL2 / DV18DBL2> 1. Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury. 2. Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory or fastener may contact hidden wiring. Cutting accessory or fasteners contacting a live wire may make exposed metal parts of the power tool live and could give the operator an electric shock. ADDITIONAL SAFETY WARNINGS 1. Make sure that the area to be drilled is absolutely free of any hidden obstructions including electrical wiring, water, or gas pipes. Drilling into the aforementioned may result in electric shock or short circuit, gas leak or other hazards that can cause serious accidents or injuries. 2. During operation, make sure to firmly hold the tool s handle and side handle with both hands. Failure to do so may result in injury. 3. Secure the workpiece. A workpiece clamped with clamping devices or in a vice is held more secure than by hand. 4. Setting up and checking the work environment. Check if the work environment is suitable by following the precaution. 5. Do not allow foreign matter to enter the hole for connecting the battery. 6. Never disassemble the battery and charger. 7. Never short-circuit the battery. Shortcircuiting the battery will cause a great electric current and overheat. It results in burn or damage to the battery. 8. Do not dispose of the battery in fire. If the battery is burnt, it may explode. 9. Bring the battery to the shop from which it was purchased as soon as the postcharging battery life becomes too short for practical use. Do not dispose of the exhausted battery. 10. Do not insert object into the air ventilation slots of the charger. Inserting metal objects or inflammables into the charger air ventilation slots will result in electrical shock hazard or damaged charger.

28 English 11. When mounting a bit into the keyless chuck, tighten the sleeve adequately. If the sleeve is not tight, the bit may slip or fall out, causing injury. 12. The motor may stop in the event the tool is overloaded. In this should occur, release the tool s switch and eliminate the cause of the overload. 13. Avoid touching the front case which can heat up during continuous operation. CAUTION ON LITHIUM-ION BATTERY To extend the lifetime, the lithium-ion battery equips with the protection function to stop the output. In the cases of 1 to 3 described below, when using this product, even if you are pulling the switch, the motor may stop. This is not the trouble but the result of protection function. 1. When the battery power remaining runs out, the motor stops. In such case, charge it up immediately. 2. If the tool is overloaded, the motor may stop. In this case, release the switch of tool and eliminate causes of overloading. After that, you can use it again. 3. If the battery is overheated under overload work, the battery power may stop. In this case, stop using the battery and let the battery cool. After that, you can use it again. Furthermore, please heed the following warning and caution. WARNING In order to prevent any battery leakage, heat generation, smoke emission, explosion and ignition beforehand, please be sure to heed the following precautions. 1. Make sure that swarf and dust do not collect on the battery. During work make sure that swarf and dust do not fall on the battery. Make sure that any swarf and dust falling on the power tool during work do not collect on the battery. Do not store an unused battery in a location exposed to swarf and dust. Before storing a battery, remove any swarf and dust that may adhere to it and do not store it together with metal parts (screws, nails, etc.). 2. Do not pierce battery with a sharp object such as a nail, strike with a hammer, step on, throw or subject the battery to severe physical shock. 3. Do not use an apparently damaged or deformed battery. 4. Do not use the battery in reverse polarity. 5. Do not connect directly to an electrical outlets or car cigarette lighter sockets. 6. Do not use the battery for a purpose other than those specified. 7. If the battery charging fails to complete even when a specified recharging time has elapsed, immediately stop further recharging. 8. Do not put or subject the battery to high temperatures or high pressure such as into a microwave oven, dryer, or high pressure container. 9. Keep away from fire immediately when leakage or foul odor are detected. 10. Do not use in a location where strong static electricity generates. 28

29 29 English 11. If there is battery leakage, foul odor, heat generated, discolored or deformed, or in any way appears abnormal during use, recharging or storage, immediately remove it from the equipment or battery charger, and stop use. CAUTION 1. If liquid leaking from the battery gets into your eyes, do not rub your eyes and wash them well with fresh clean water such as tap water and contact a doctor immediately. If left untreated, the liquid may cause eye-problems. 2. If liquid leaks onto your skin or clothes, wash well with clean water such as tap water immediately. There is a possibility that this can cause skin irritation. 3. If you find rust, foul odor, overheating, discolor, deformation, and/or other irregularities when using the battery for the first time, do not use and return it to your supplier or vendor. WARNING If a conductive foreign matter enters in the terminal of lithium ion battery, the battery may be shorted, causing fire. When storing the lithium ion battery, obey surely the rules of following contents. Do not place conductive debris, nail and wires such as iron wire and copper wire in the storage case. To prevent shorting from occurring, load the battery in the tool or insert securely the battery cover for storing until the ventilator is not seen (See Fig. 1). REGARDING LITHIUM-ION BATTERY TRANSPORTATION When transporting a lithium-ion battery, please observe the following precautions. WARNING Notify the transporting company that a package contains a lithium-ion battery, inform the company of its power output and follow the instructions of the transportation company when arranging transport. Lithium-ion batteries that exceed a power output of 100Wh are considered to be in the freight classification of Dangerous Goods and will require special application procedures. Ventilation holes Terminals Battery cover Battery Fig. 1 Power Output 2 to 3 digit number Fig. 2 For transportation abroad, you must comply with international law and the rules and regulations of the destination country.

30 English SYMBOLS WARNING The following show symbols used for the machine. Be sure that you understand their meaning before use. Read all safety warnings and all n instructions. 0 No-load speed Direct carrent /min Oscillation per minute V Rated voltage Warning SPECIFICATIONS POWER TOOL Model DS18DBL2 DV18DBL2 Voltage 18 V No-load speed Low /min High /min Impact rate Low /min High /min Brik (Depth 30 mm) 16 mm Drilling Wood (Thickness 18 mm) 76 mm Capacity Metal (Thickness 1.6 mm) Steel: 13 mm, Aluminum: 13 mm Machine screw 6 mm Driving 10 mm (diameter) 90 mm (length) Wood screw (Requires a pilot hole) Drill chuck capacity Maximum gripping diameter mm Battery BSL1850: Li-ion 18 V (5.0 Ah 10 cells) Weight 2.2 kg 2.2 kg CHARGER Model Charging voltage Weight UC18YFSL V 0.5 kg 30

31 English STANDARD ACCESSORIES In addition to the main unit (1 unit), the package contains the accessories listed in the below. Table 1 DS18DBL2 DV18DBL2 (2LJRK) (NCK) (2LJRK) Plus driver bit (No. 2) Charger (UC18YFSL) Battery (BSL1850) 2 2 Battery cover 1 1 Case (Stackable) Side handle APPLICATIONS <DS18DBL2> Driving and removing of machine screws, wood screws, tapping screws, etc. Drilling of various metals. Drilling of various woods. <DV18DBL2> Drilling of brick and concrete block, etc. Driving and removing of machine screws, wood screws, tapping screws, etc. Drilling of various metals. Drilling of various woods. 31

32 English BATTERY REMOVAL / INSTALLATION 1. Battery removal Hold the handle tightly and push the battery latches to remove the battery (see Fig. 3, 4). CAUTION Never short-circuit the battery. 2. Battery installation Insert the battery while observing its polarities (see Fig. 4). Latch Ventilation holes Terminals Battery cover Battery Latch Battery Fig. 3 Handle CHARGING Pull out Insert Fig. 4 Push Before using the power tool, charge the battery as follows. Battery 1. Connect the charger s power cord to the receptacle. When connecting the plug of the charger to a receptacle, the pilot lamp will blink in red (At 1- second intervals). Pilot lamp 2. Insert the battery into the charger. Firmly insert the battery into the charger as shown in Fig Charging When inserting a battery in the charger, charging will commence and the pilot lamp will light continuously in red. Charger When the battery becomes fully recharged, the pilot lamp Fig. 5 will blink in red. (At 1-second intervals) (See Table 2) Pilot lamp indication The indications of the pilot lamp will be as shown in Table 2, according to the condition of the charger or the battery. 32

33 Before charging Table 2 Indications of the pilot lamp Lights for 0.5 seconds. Does not light for 0.5 seconds. (off for Blinks 0.5 seconds) English While charging Lights Lights continuously Pilot lamp (red) Charging complete Overheat standby Charging impossible Blinks Blinks Flickers Lights for 0.5 seconds. Does not light for 0.5 seconds. (off for 0.5 seconds) Lights for 1 second. Does not light for 0.5 seconds. (off for 0.5 seconds) Lights for 0.1 seconds. Does not light for 0.1 seconds. (off for 0.1 seconds) Battery overheated. Unable to charge. (Charging will commence when battery cools) Malfunction in the battery or the charger Regarding the temperatures and charging time of the battery. The temperatures and charging time will become as shown in Table 3. Table 3 Battery Charger UC18YFSL Charging voltage V Weight kg 0.5 Temperatures at which the battery can be recharged 0oC 50oC Charging time for battery capacity, approx. (At 20oC) 1.5 Ah 2.0 Ah 2.5 Ah 3.0 Ah 4.0 Ah 5.0 Ah min. min. min. min. min. min Number of battery cells 4 10 NOTE The recharging time may vary according to temperature and power source voltage. 33

34 English CAUTION When the battery charger has been continuously used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging. 4. Disconnect the charger s power cord from the receptacle. 5. Hold the charger fi rmly and pull out the battery. NOTE Be sure to pull out the battery from the charger after use, and then keep it. CAUTION If the battery is charged while it is heated because it has been left for a long time in a location subject to direct sunlight or because the battery has just been used, the pilot lamp of the charger lights for 1 second, does not light for 0.5 seconds (off for 0.5 seconds). In such a case, first let the battery cool, then start charging. When the pilot lamp flickers (at 0.2-second intervals), check for and take out any foreign objects in the charger s battery connector. If there are no foreign objects, it is probable that the battery or charger is malfunctioning. Take it to your authorized Service Center. Since the built-in micro computer takes about 3 seconds to confirm that the battery being charged with charger is taken out, wait for a minimum of 3 seconds before reinserting it to continue charging. If the battery is reinserted within 3 seconds, the battery may not be properly charged. If the pilot lamp does not blink in red (every second) even though the charger cord is connected to the power, it indicates that the protection circuit of the charger may be activated. Remove the cord or plug from the power and then connect it again after 30 seconds or so. If this does not cause the pilot lamp to blink in red (every second), please take the charger to the Hitachi Authorized Service Center. PRIOR TO OPERATION Check the work area to make sure that it is clear of debris and clutter. Clear the area of unnecessary personnel. Ensure that lighting and ventilation is adequate. HOW TO USE 1. Mounting and dismounting of the bit (1) Mounting the bit Loosen the sleeve by turning it toward the left (in the counterclockwise direction as viewed from the front) to open the clip on the keyless chuck. After inserting a driver bit, etc., into the keyless drill chuck, and tighten the sleeve by turning it toward the right (in the clockwise direction as viewed from the front). (See Fig. 6) 34 Sleeve Loosen Tighten Fig. 6

35 English NOTE If the sleeve becomes loose during operation, tighten it further. The tightening force becomes stronger when the sleeve is tightened. (2) Dismounting the bit Loosen the sleeve by turning it toward the left (in the counterclockwise direction as viewed from the front), and then take out the bit etc. (See Fig. 6) NOTE If the sleeve is tightened in a state where the clip of the keyless chuck is opened to a maximum limit, a click noise may occur. This is the noise that occurs when the loosening of the keyless chuck is prevented and is not a malfunction. When it is no longer possible to loosen the sleeve, use a vise or similar instrument to secure the bit. Set the clutch mode between 1 and 11 and then turn the sleeve to the loose side (left side) while operating the clutch. It should be easy now to loosen the sleeve. 2. Confi rm that the battery is mounted correctly. 3. Installing/Removing the side handle (Fig. 7) WARNING When using the tool, make sure the side handle is attached and firmly secured. If not firmly secured, the tool may jerk out of position when overburdened, resulting in injury. Rubber cap 1 Protruding portion of the side handle Vertically press the side handle s screw 2 portion against the hole 3 Tighten (1) Remove the rubber cap and attach the side handle. ( 1, 2, 3 ) (2) Loosen the grip to remove the side handle. ( 4 ) Attach the rubber cap to the protruding portion of the side handle. ( 5 ) 4. Check the rotational direction The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the selector button. The L-side of the selector button is pushed to turn the bit counterclockwise. (See Fig. 8) (The and marks are provided on the push button.) CAUTION The push button cannot be switched while the power tool is turning. To switch the push button, stop the power tool, then set the push button. 5 Trigger switch 4 Loosen Fig. 7 Grip Selector button mark mark Fig. 8 35

36 English 5. Change rotation speed Operate the shift knob to change the rotational speed. Move the shift knob in the direction of the arrow (See Low speed Figs. 9 and 10). When the shift knob is set to LOW, the drill rotates at Shift knob a low speed. When set to HIGH, the drill rotates at a Fig. 9 high speed. CAUTION When changing the rotational speed with the shift High speed knob, confirm that the switch is off. Changing the speed while the motor is rotating will Shift knob damage the gears. When a large force is required for operation Fig. 10 (operations indicated in the following chart) set the shift knob to LOW. If HIGH is set and the unit is used, it may cause the motor to burn out or malfunction prematurely. 6. The scope and suggestions for uses The usable scope for various types of work based on the mechanical structure of this unit is shown in Table 4. Table 4 Work Cap position Suggestions Brick (DV18DBL2) Drilling Wood Steel Use for drilling purpose. Aluminum Screw Machine screw 1 22 Use the bit or socket matching the screw diameter. tightening Wood screw 1 Use after drilling a pilot hole. 7. Confi rm the clutch dial position (See Fig. 11) <DS18DBL2> The tightening torque of this unit can be adjusted according to the clutch dial position, at which the clutch dial is set. (1) When using this unit as a screwdriver, line up the one of the numbers 1, 4, on the clutch dial, or the dots, with the triangle mark on the outer body. (2) When using this unit as a drill, align the clutch dial drill mark with the triangle mark on the outer body. CAUTION The clutch dial cannot be set between the numbers 1, 4, or the dot. 36 mark Clutch dial Weak Triangle mark Strong Fig. 11

37 Do not use with the clutch dial set at the line between the number 22 and the drill mark. Doing so may cause damage (See Fig. 12). mark English Triangle mark <DV18DBL2> (See Fig. 13) The three modes of screwdriver, drill and impact drill can be switched by the position of the clutch dial in this unit. (1) When using this unit as a screwdriver, line up the one of the numbers 1, 4, on the clutch dial, or the dots, with the triangle mark on the outer body. (2) When using this unit as a drill, align the clutch dial drill mark with the triangle mark on the outer body. (3) When using this unit as an impact drill, align the clutch dial hammer mark with the triangle mark on the outer body. CAUTION The clutch dial cannot be set between the numbers 1, 4, or the dot. Do not use with the clutch dial number at 22 and the line at the middle of the drill mark. Doing so may cause damage. (See Fig. 14) 8. Rotation to Impact changeover (DV18DBL2) The Rotation (Rotation only) and Impact (Impact + Rotation) can be switched by aligning the drill mark or the hammer mark with the triangle mark on the outer body. To make holes in the metal, wood or plastic, switch to Rotation (Rotation only). To make holes in bricks or concrete blocks, switch to Impact (Impact + Rotation). CAUTION Do not use the Cordless impact drill in the Impact setting if the material can be bored by rotation only. Such action will not only reduce drill efficiency, but may also damage the drill tip. Line Fig. 12 Clutch dial mark Weak Triangle mark mark Strong Fig. 13 mark mark Triangle mark Line Fig Tightening torque adjustment (1) Tightening torque Tightening torque should correspond in its intensity to the screw diameter. When too strong torque is used, the screw head may be broken or be injured. Be sure to adjust the clutch dial position according to the screw diameter. 37

38 English (2) Tightening torque indication (See Fig. 11 on page 36, Fig. 13 on page 37) The tightening torque differs depending on the type of screw and the material being tightened. The unit indicates the tightening torque with the numbers 1, 4, on the clutch dial, and a dots. The tightening torque at position 1 is the weakest and the torque is strongest at the highest number. (3) Adjusting the tightening torque (See Fig. 11 on page 36, Fig. 13 on page 37) Rotate the clutch dial and line up the numbers 1, 4, on the clutch dial, or the dots, with the triangle mark on the outer body. Adjust the clutch dial in the weak or the strong torque direction according to the torque you need. 10. Switch operation When the trigger switch is depressed, the tool rotates. When the trigger is released, the tool stops. When releasing the trigger of the switch, the brake will be applied for immediate stopping. 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. 11. For drilling into brick (DV18DBL2) Excessive pressing force never increases drilling speed. It will not only damage the drill tip or reduce working efficiency, but could also shorten the service life of drill bit. Operate the impact driver drill within kg pressing force while drilling into brick. CAUTION The motor rotation may be locked to cease while the unit is used as drill. While operating the driver drill, take care not to lock the motor. If the motor is locked, immediately turn the power off. If the motor is locked for a while, the motor or battery may be burnt. Too long hammering may cause the screw broken due to excessive tightening. 12. How to select tightening torque and rotational speed CAUTION The selection examples shown in Table 5 should be considered as general standard. As different types of tightening screws and different materials to be tightened are used in actual works proper adjustments are naturally necessary. When using the driver drill with a machine screw at HIGH (high speed), a screw may damage or a bit may loose due to the tightning torque is too strong. Use the driver drill at LOW (low speed) when using a machine screw. NOTE The use of the battery in a cold condition (below 0 degree Centigrade) can sometimes result in the weakened tightening torque and reduced amount of work. This, however, is a temporary phenomenon, and returns to normal when the battery warms up. 38

39 Screw tightening Drilling Use Machine screw Clutch Dial Position 1 22 Wood screw 1 Brick (DV18DBL2) Wood Metal 13. About Remaining Battery Indicator Remaining battery power can be verifi ed by pulling on the switch to light up the remaining battery indicator lamp. (Fig. 15) The indicator lamp will turn off 10 seconds after the switch is released. The Table 6 shows the state of remaining battery indicator lamp and the battery remaining power. English Table 5 Rotating speed selection (Position of the shift knob) LOW (Low speed) HIGH (High speed) For 6 mm or smaller For 6 mm or smaller diameter screws. diameter screws. For 10 mm or smaller For 6 mm or smaller nominal diameter screws. nominal diameter screws. For 16 mm or smaller For 13 mm or smaller diameters. diameters. For 76 mm or smaller For 32 mm or smaller diameters. diameters. For drilling with a metal working drill bit. Display panel Remaining battery indicator lamp Switch trigger State of lamp Fig. 15 Table 6 Battery Remaining Power The battery remaining power is enough. The battery remaining power is a half. The battery remaining power is nearly empty. Re-charge the battery soonest possible. As the remaining battery indicator shows somewhat differently depending on ambient temperature and battery characteristics, read it as a reference. NOTE Do not give a strong shock to the display panel or break it. It may lead to a trouble. 39

40 English 14. How to use the LED light While the switch is pulled, the LED light will automatically light up the tip portion of the tool. (Fig. 16) The LED light will automatically turn off 10 seconds Switch trigger after the switch is released. The LED light also functions as a warning signal that lights up during use. For details, see 17. LED light warning signals. CAUTION Fig. 16 Do not expose directly your eye to the light by looking into the light. If your eye is continuously exposed to the light, your eye will be hurt. Wipe off any dirt or grime attached to the lens of the LED light with a soft cloth, being careful not to scratch the lens. Scratches on the lens of the LED light can result in decreased brightness. 15. Using the hook The hook is used to hang up the power tool to your waist belt while working. CAUTION When using the hook, hang up the power tool firmly not to drop accidentally. If the power tool is dropped, it may lead to an accident. When electing to carry the tool hooked to your hip belt, make sure to detach the tool bit and side handle. Groove Failure to do so may result in unexpected injury. Install securely the hook. Unless the hook is securely installed, it may cause an injury while Screw using. (1) Removing the hook. Remove the screws fi xing the hook with screw driver. (Fig. 17) (2) Replacing the hook and tightening the screws. Install securely the hook in the groove of power tool and tighten the screws to fi x the hook fi rmly. (Fig. 18) Hook Fig. 17 Groove 40 Hook Fig. 18 Screw

41 English 16. Reactive force control This product features a reactive force control Arms are twisted (RFC) to minimize the danger of twisting the operator s arms when tool itself suddenly jerks during operation. When the tool bit is suddenly overburdened, the tool itself may react to the motor s force and twist in the opposite direction of the motor s rotation, which could result in injury. (Fig. 19) Fig. 19 When the tool s built-in control detects a reactive force, it stops the motor s output before the entire tool jerks to lessen the twisting of the operator s arms. When this function activates, it will be indicated by the LED light blinking (0.1-second blinks/off 0.5 seconds) while the switch is pulled. (See 17. LED light warning signals ) However, as the function may not activate depending on situations or conditions during operation, so care should be taken to avoid any sudden overburdening of the tool bit when operating the tool. Possible causes of sudden overburdening 1 Tool bit biting into material 2 Impact against nails, metal or other hard objects 3 Tasks involving prying or any excess application of pressure, etc. Also, other causes include any combination of the aforementioned. When the reactive force control (RFC) is triggered When the RFC is triggered and the motor stops, turn off the tool s switch and remove the cause of the overburdening before continuing operation. 17. LED light warning signals (Fig. 20) This product features functions that are designed to protect the tool itself as well as the battery. While the switch is pulled, if any of the safeguard functions activate during operation, the LED light will blink as described in Table 7 on page 42. When any of the safeguard functions are triggered, immediately remove your fi nger from the switch and follow the instructions described under corrective action. Fig

42 English Table 7 Safeguard Function LED Light Display Corrective Action Overburden Protection If the operating with the shift knob set on HIGH, adjust to LOW and continue operation. On 0.1 second/off 0.5 second Remove the cause of the overburdening. Reactive Force Control Remove the cause of the overburdening. When operating the tool, fi rmly hold the tool to make sure it doesn t jerk. Over-discharge Protection On 0.5 second/off 0.5 second Charge the battery as soon as possible. Temperature Protection On 0.3 second/off 0.3 second Allow the tool and battery to thoroughly cool. OPERATIONAL CAUTIONS Resting the unit after continuous work (1) The power tool is equipped with a temperature protection circuit to protect the motor. Continuous bolt-tightening work may cause the temperature of the unit to rise, activating the temperature protection circuit and automatically stopping operation. If this happens, allow the power tool to cool before resuming use. (2) After use for continuous tightening wood screw works, rest the unit for 15 minutes or so when replacing the battery. The temperature of the motor, switch, etc., will rise if the work is started again immediately after battery replacement, eventually resulting in burnout. MAINTENANCE AND INSPECTION 1. Inspecting the tool Since use of a dull tool will degrade efficiency and cause possible motor malfunction, sharpen or replace the tool as soon as 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. Cleaning of the outside When the driver drill is stained, wipe with a soft dry cloth or a cloth moistened with soapy water. Do not use chloric solvents, gasoline or paint thinner, for they melt plastics. 42

43 English 5. Storage Store the driver drill in a place in which the temperature is less than 40 C and out of reach of children. NOTE Storing Lithium-ion Batteries Make sure the batteries have been fully charged before storing them. Prolonged storage (3 months or more) of batteries with a low charge may result in performance deterioration, signifi cantly reducing battery usage time or rendering the batteries incapable of holding a charge. However, signifi cantly reduced battery usage time may be recovered by repeatedly charging and using the batteries two to fi ve times. If the battery usage time is extremely short despite repeated charging and use, consider the batteries dead and purchase new batteries. CAUTION In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed. Important notice on the batteries for the Hitachi cordless power tools Please always use one of our designated genuine batteries. We cannot guarantee the safety and performance of our cordless power tool when used with batteries other than these designated by us, or when the battery is disassembled and modifi ed (such as disassembly and replacement of cells or other internal parts). 43

44 English TROUBLESHOOTING Use the inspections in the table below if the tool does not operate normally. If this does not remedy the problem, consult your dealer or the Hitachi Authorized Service Center. Symptom Possible cause Remedy No remaining battery power Charge the battery. Tool doesn t run Push in the battery until a click Battery isn t securely attached. is heard. Tool suddenly stopped Tool bits - can t be attached - fall off Switch can t be pulled Screw head slips or comes loose. Holes can t be smoothly drilled. Tool was overburdened Remove the cause of the Reactive force control was overburdening. activated See Reactive force control. Allow the tool and battery to Battery or tool overheated thoroughly cool. The chucking diameter of the The shape of the attachment keyless chuck is 1.5 mm to portion doesn t match 13 mm. Use a bit that falls within the stated range. Contact a Hitachi Authorized The lock of the keyless chuck Service Center and arrange is worn to have the old keyless chuck replaced with a new one. Press the button fi rmly into Forward/reverse selector position for the desired button is positioned halfway direction of rotation. Bit number doesn t match with Install a suitable bit. the screw size The bit is worn Replace with a new bit. The drill is worn Replace with a new drill. Adjust the rotation speed Rotation speed isn t (HIGH/LOW) to match the appropriate material to be drilled. The drill is rotating in reverse Switch to forward rotation. 44

45 SELECTING ACCESSORIES Select accessories that are suited to a specifi c task. For details contact Hitachi Authorized Service Center. English Part Number: Side handle Part Number: Plus driver bit (No.2) 18 V (Li-ion) Battery UC18YFSL (14.4 V - 18 V) Charger Part Number: Part Number: Battery cover Part Number:

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