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 ......27 SYMBOLS ....................28 SPECIFICATIONS ..................28 STANDARD ACCESSORIES ...............29 APPLICATIONS ....................29 BATTERY REMOVAL / INSTALLATION ............30 CHARGING ....................30 PRIOR TO OPERATION ................32 HOW TO USE ....................33 OPERATIONAL CAUTIONS .................37...
Page 22
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.
Page 23
English 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...
English e) Do not use a battery pack or tool that is damaged or modifi ed. Damaged or modifi ed batteries may exhibit unpredictable behaviour resulting in fi re, explosion or risk of injury. Do not expose a battery pack or tool to fi re or excessive temperature. Exposure to fi...
English Do not use the charger continuously. When one charging is completed, leave the charger for about 15 minutes before the next charging of battery. 10. Do not allow foreign matter to enter the hole for connecting the battery. 11. Never disassemble the battery and charger. 12.
Page 26
English 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. Make sure that swarf and dust do not collect on the battery. ○...
English WARNING Ventilation holes Terminals If a conductive foreign matter enters in the terminal of lithium ion battery, the battery may be shorted, causing fi re. When storing the lithium Battery cover ion battery, obey surely the rules of following contents.
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 WH18DE (NNK) Charger (UC18YFSL) – Battery (BSL1840M) – 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). CAUTION Battery cover Never short-circuit the battery. Battery installation Latch Insert the battery while observing its polarities Fig.
Page 31
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 Plugged into power Blinks...
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 HiKOKI 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 button. Trigger switch The L-side of the pushing button is pushed to turn the bit counterclockwise (See Fig.
Page 34
English Removing the hook. Groove Remove the screws fi xing the hook with Philips screw driver. (Fig. 9) Screw Hook Fig. 9 Replacing the hook and tightening the screws. Install securely the hook in the groove of power tool and Groove tighten the screws to fi...
Page 35
English Lights ; The battery remaining power is 25%–50%. Lights ; The battery remaining power is less than 25% Blinks ; The battery remaining power is nearly empty. Recharge the battery soonest possible. Blinks ; Output suspended due to high temperature. Remove the battery from the tool and allow it to fully cool down.
Page 36
English CAUTION ○ Applying the impact driver for too long tightens the screw too much and can break it. ○ Tightening a screw with the impact driver at an angle to that screw can damage the head of the screw and the proper force will not be transmitted to the screw. Tighten with this impact driver lined up straight with the screw.
English 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. The temperature of the motor, switch, etc., will rise if the work is started again immediately after battery replacement, eventually resulting in burnout.
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 HiKOKI 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...
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 HiKOKI Authorized Service Center. Symptom Possible cause Remedy Tool doesn’t run No remaining battery power Charge the battery.
Page 40
The charger’s vents are blocked, Avoid blocking the vents. causing its internal components to overheat. The cooling fan is not running. Contact a HiKOKI Authorized Service Center for repairs.
English SELECTING ACCESSORIES Select accessories that are suited to a specifi c task. For details contact HiKOKI Authorized Service Center. 18 V (Li-ion) UC18YFSL Battery (14.4 V–18 V) Charger BSL36A18 Part Number: 329897 Battery Battery cover Light Gold: Part Number: 377857...
Need help?
Do you have a question about the WH 18DE and is the answer not in the manual?
Questions and answers