1. Introducció
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your HiKOKI 18V Cordless Impact Driver, model WH18DC. Please read this manual thoroughly before using the tool and keep it for future reference.
Característiques principals:
- Triple Hammer Mechanism: Designed for efficient and fast screw tightening.
- Disseny compacte: Features a head length of 114mm for improved maneuverability in tight spaces.
- Pes lleuger: Weighs approximately 1.6kg (when equipped with BSL36A18 battery) for reduced user fatigue.
- Control millorat: Motor control prevents locking at low speeds, allowing for continuous operation and precise delicate work.
- Reduced Bit Wobble: Minimizes bit run-out and cam-out, making one-handed operation easier and preventing screws from falling.
- 3-Light LED: Provides wide-area illumination, reducing shadows around the bit for better visibility in dark environments.
- Múltiples modes de funcionament: Offers various modes to optimize work efficiency for different applications.
- Durabilitat: Dustproof and waterproof with an IP56 rating.
2. Informació de seguretat
Always observe basic safety precautions to reduce the risk of fire, electric shock, and personal injury when operating power tools. Keep this information accessible for all users.
Pautes generals de seguretat:
- Seguretat de l'àrea de treball: Mantingueu la vostra zona de treball neta i ben il·luminada. Les zones desordenades o fosques conviden als accidents. No feu servir eines elèctriques en atmosferes explosives, com ara en presència de líquids, gasos o pols inflamables.
- Seguretat elèctrica: Eviteu el contacte corporal amb superfícies connectades a terra. No exposeu les eines elèctriques a la pluja ni a condicions humides.
- Seguretat personal: Porteu sempre protecció ocular. Feu servir protecció auditiva quan opereu durant períodes prolongats. Vestiu-vos correctament; eviteu roba ampla o joies. Assegureu-vos els cabells llargs.
- Ús i cura de l'eina: No forceu l'eina elèctrica. Feu servir l'eina correcta per a la vostra aplicació. Desconnecteu la bateria de l'eina elèctrica abans de fer qualsevol ajust, canviar accessoris o guardar eines elèctriques.
- Ús i cura de la bateria: Recharge only with the charger specified by the manufacturer. Do not use battery packs with power tools for which they are not intended.
3. Contingut del paquet
Upon opening the package, ensure all items are present and undamaged. The standard package for the WH18DC (NNB) model typically includes:
- HiKOKI 18V Cordless Impact Driver WH18DC (Main Unit)
- Manual d'usuari (aquest document)
Note: Battery, charger, carrying case, and bits are sold separately for this model.
4. Identificació de peces
Familiarize yourself with the components of your HiKOKI WH18DC Impact Driver.

Imatge 4.1: Davant view of the HiKOKI WH18DC 18V Cordless Impact Driver in Strong Black. This image displays the main body, chuck, LED lights, trigger, and handle.
- chuck: For inserting and securing screwdriver bits.
- Llums LED: Three integrated lights illuminate the work area.
- Interruptor d'activació: Controls the tool's power and speed.
- Interruptor endavant/enrere: Canvia el sentit de rotació.
- Selector de mode: Allows selection of different operating modes (Soft, Power, Bolt, Tex).
- Port de la bateria: For attaching the 18V battery pack.
- Ganxo de cinturó: Convenient for temporary storage during work.
5. Configuració
5.1. Instal·lació de la bateria
- Ensure the impact driver is switched off and the forward/reverse switch is in the neutral (locked) position.
- Alineeu el paquet de bateries amb el port de bateria de la base de l'eina.
- Feu lliscar la bateria fermament al seu lloc fins que faci clic, cosa que indica que està ben bloquejada.
- To remove, press the battery release button and slide the battery pack off.
5.2. Instal·lació de bits
- Per seguretat, assegureu-vos que la bateria estigui treta.
- Estireu la màniga del mandril cap endavant.
- Introduïu completament la punta del tornavís desitjada al mandril.
- Release the chuck sleeve. The bit should be securely held. Gently pull on the bit to confirm it is locked in place.
- To remove, pull the chuck sleeve forward and pull the bit out.

Imatge 5.1: A hand demonstrating the proper grip and bit insertion for the HiKOKI 18V Impact Driver. This image highlights the tool's compact design and ease of handling.
6. Instruccions de funcionament
6.1. Engegada/Apagada i Control de Velocitat
- To turn on the tool, press the trigger switch. The speed is variable depending on how far the trigger is pressed.
- Per apagar, deixeu anar el disparador.
6.2. Rotació endavant/enrere
The forward/reverse switch is located above the trigger. Push it to the left for forward rotation (tightening) and to the right for reverse rotation (loosening). The center position locks the trigger for safety.
6.3. Selecció de mode
The WH18DC features multiple operating modes to suit various tasks. Select the appropriate mode using the mode selector button, typically located near the base of the handle or on the tool head.

Imatge 6.1: A visual representation of the WH18DC's diverse operating modes, including Soft, Power, Bolt (continuous/single), and Tex modes. This image also illustrates the optional color plates for customization.
- Mode suau: For delicate work or when precise control is needed to prevent overtightening.
- Mode d'alimentació: For general fastening tasks requiring higher torque.
- Bolt Mode (Continuous/Single): Optimized for tightening bolts, with options for continuous or single impacts.
- Tex Mode: Specifically designed for self-drilling screws (Tek screws).
6.4. Funcionament de la llum LED
The three LED lights automatically activate when the trigger is pressed, illuminating the work area. They remain on for a short period after the trigger is released to provide continued visibility.

Imatge 6.2: Un primer pla view of the impact driver's head, showcasing the three integrated LED lights illuminating the workspace. This feature ensures clear visibility and reduces shadows during operation.
7. Manteniment
Un manteniment regular garanteix la longevitat i el rendiment òptim del vostre atornillador d'impacte.
7.1. Neteja
- Desconnecteu sempre el paquet de bateries abans de netejar-lo.
- Netegeu l'eina amb un drap suauamp tela. No utilitzeu productes químics aggressivs ni netejadors abrasius.
- Clean ventilation openings regularly to prevent overheating. Use compressed air if necessary.
7.2. Emmagatzematge
- Guardeu l'eina en un lloc sec i segur fora de l'abast dels nens.
- Traieu la bateria de l'eina abans de guardar-la durant períodes prolongats.
- Guardeu les bateries en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
7.3. Classificació IP56
The WH18DC has an IP56 rating, indicating protection against dust ingress and high-pressure water jets from any direction. While this offers significant protection, it is not designed for submersion in water. Always ensure the battery cover is properly sealed if working in wet conditions.
8. Solució De Problemes
Si teniu problemes amb el vostre atornillador d'impacte, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| L'eina no s'inicia | Battery not charged or improperly installed. Trigger lock engaged. | Ensure battery is fully charged and correctly inserted. Disengage the trigger lock by moving the forward/reverse switch to either forward or reverse position. |
| Reducció de potència o rendiment | Low battery charge. Incorrect mode selected. Worn or damaged bit. | Recharge the battery. Select a more powerful mode (e.g., Power or Bolt). Replace the bit if it is worn. |
| Bit wobbles excessively | Bit not fully inserted. Incorrect bit type. | Ensure the bit is fully inserted and locked into the chuck. Use only hex shank bits designed for impact drivers. |
| Sobreescalfament | Ranures de ventilació bloquejades. Ús intensiu continu. | Netegeu les ranures de ventilació. Deixeu que l'eina es refredi durant un ús intensiu prolongat. |
If the problem persists after attempting these solutions, please contact HiKOKI customer support or an authorized service center.
9. Especificacions
Technical specifications for the HiKOKI 18V Cordless Impact Driver WH18DC:
| Característica | Especificació |
|---|---|
| Marca | HiKOKI |
| Número de model | WH18DC |
| Dimensions del producte | 13 x 6 x 24 cm |
| Pes de l'article | 1 kg (tool only) |
| Color | Strong Black |
| Font d'alimentació | Funciona amb bateria |
| Voltage | 18.0 V |
| Max Torque | 180 N·m |
| Velocitat màxima de rotació | 3700 RPM |
| Nombre de velocitats | 4 (via mode selection) |
| Protecció contra el pols i l'aigua | IP56 |
| Piles incloses | No (es ven per separat) |
10. Garantia i Suport
For detailed warranty information, please refer to the warranty card included with your product or visit the official HiKOKI website. HiKOKI provides comprehensive customer support and repair services.
Online Repair Application:
You can apply for repairs online by searching for "HiKOKI Repair" on your preferred browser and following the instructions on the official HiKOKI weblloc.

Imatge 10.1: A visual guide to the online repair application process on the HiKOKI official website, detailing steps from repair reception to payment and confirmation.
Informació de contacte:
For further assistance, technical support, or to locate an authorized service center, please visit the official HiKOKI weblloc o poseu-vos en contacte amb el seu departament d'atenció al client.
Official HiKOKI Weblloc: www.hikoki-powertools.jp





