English CONTENTS GENERAL POWER TOOL SAFETY WARNINGS ........21 CORDLESS IMPACT DRIVER SAFETY WARNINGS ........24 CAUTION ON LITHIUM-ION BATTERY ............25 REGARDING LITHIUM-ION BATTERY TRANSPORTATION ......26 SYMBOLS ....................27 SPECIFICATIONS ..................27 STANDARD ACCESSORIES ...............28 APPLICATIONS ....................28 BATTERY REMOVAL / INSTALLATION ............29 CHARGING ....................29 PRIOR TO OPERATION ................31 HOW TO USE ....................32 OPERATIONAL CAUTIONS .................35...
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English 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. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
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English 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. 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.
English CAUTION Keep children and infi rm persons away. When not in use, tools should be stored out of reach of children and infi rm persons. CORDLESS IMPACT DRIVER SAFETY WARNINGS Hold power tool by insulated gripping surfaces, when performing an operation where the fastener may contact hidden wiring.
English 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.
English CAUTION 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. If liquid leaks onto your skin or clothes, wash well with clean water such as tap water immediately.
English SYMBOLS WARNING The following show symbols used for the machine. Be sure that you understand their meaning before use. To reduce the risk of injury, user must No-load speed read instruction manual. Direct current /min Oscillation per minute Rated voltage Warning SPECIFICATIONS POWER TOOL...
English STANDARD ACCESSORIES In addition to the main unit (1 unit), the package contains the accessories listed in the below. Table 1 WH18DBSL (NN) – Charger (UC18YFSL) Battery (BSL1850) – Battery cover – Plastic case – The charger and battery supplied are diff erent depending on the set specifi cation. APPLICATIONS Driving and removing of machine screws, wood screws, tapping screws, etc.
English BATTERY REMOVAL / INSTALLATION Battery removal Ventilation holes Terminals Hold the handle tightly and push the battery latches to remove the battery (see Fig. 3, 4). Battery cover CAUTION Never short-circuit the battery. Latch Battery installation Battery Insert the battery while observing its polarities (see Fig.
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English ● 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 rechargeable battery. Table 2 Indications of the pilot lamp Lights for 0.5 seconds. Does not light Before Blinks for 0.5 seconds.
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 Preparing and checking the work environment Make sure that the work site meets all the conditions laid forth in the precautions.
English CAUTION If the guide sleeve does not return to its original position, then the bit is not installed properly. HOW TO USE Check the rotational direction The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the pushing Trigger switch button.
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English Removing the hook. Groove Remove the screws fi xing the hook with Philips screw driver. (Fig. 8) Screw Hook Fig. 8 Replacing the hook and tightening the screws. Install securely the hook in the groove of power tool and Groove tighten the screws to fi...
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English NOTE Do not give a strong shock to the display panel or break it. It may lead to a trouble. 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.
English Table 5 Safeguard Function LED Light Display Corrective Action Remove the cause of the On 0.1 second/off 0.1 second Overburden Protection overburdening. Allow the tool and battery to On 0.5 second/off 0.5 second Temperature Protection thoroughly cool. OPERATIONAL CAUTIONS Resting the unit after continuous work After use for continuous bolt-tightening work, rest the unit for 15 minutes or so when replacing the battery.
English Operating time The tightening torque increases when the operating time increases. But the tightening torque does not increase above a certain value even if the tool is driven for a long time. Diameter of bolt The tightening torque diff ers with the diameter of the bolt. Generally a larger diameter bolt requires larger tightening torque.
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 Tool doesn’t run...
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The charger’s vents are blocked, Avoid blocking the vents. causing its internal components to overheat. The cooling fan is not running. Contact a Hitachi Authorized Service Center for repairs.
English SELECTING ACCESSORIES Select accessories that are suited to a specifi c task. For details contact Hitachi Authorized Service Center. 18 V (Li-ion) UC18YFSL Battery (14.4 V - 18 V) Charger Part Number: 336642 Part Number: 329897 Plastic case Battery cover...