1. Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your Timbertech MNFS01 Wall Chaser. Please read these instructions carefully before using the tool and keep them for future reference. The Timbertech MNFS01 is a high-quality wall chaser designed for precise groove cutting in various masonry materials. It features a powerful 1700W motor, an integrated laser guide for accuracy, and adjustable settings for cutting depth and width.
2. Consignes de sécurité
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Failure to follow these instructions may result in serious injury or property damage.
- Lisez toutes les instructions: Familiarize yourself with the tool's controls and proper operation.
- Portez un équipement de protection individuelle (EPI) : Always wear safety glasses, hearing protection, a dust mask, and heavy-duty gloves when operating the wall chaser.
- Sécuriser la pièce à travailler : Ensure the material being cut is stable and securely clamped pour empêcher tout mouvement pendant le fonctionnement.
- Maintenir une zone de travail propre : Cluttered areas invite accidents. Keep your work area well-lit and free of debris.
- Évitez les environnements dangereux : N'utilisez pas d'outils électriques dans damp or wet locations, or expose them to rain. Keep the work area well-ventilated.
- Prévenir les démarrages accidentels : Assurez-vous que l'interrupteur est en position OFF avant de brancher l'outil.
- Utilisez le bon outil : N’utilisez pas l’outil de force ; utilisez l’outil approprié à votre application.
- Débrancher l'alimentation : Always disconnect the tool from the power source before making any adjustments, changing accessories, or storing the tool.
- Vérifiez les pièces endommagées : Before use, inspect the tool for any damaged parts. Ensure all guards and safety features are in working order.
- Extraction de poussière: Always connect the dust extraction adapter to a suitable vacuum cleaner to minimize dust exposure.
3. Contenu du colis
Your Timbertech MNFS01 Wall Chaser package includes the following items:
- 1 x Wall Chaser with Laser
- 1 x étui de transport
- 2 x Diamond Cutting Discs (Ø 150mm)
- 1 x Groove Chisel
- 1 x clé à molette
- 1 x Dust Extractor Adapter
- 1 x Manuel d'instructions

Figure 1: The Timbertech MNFS01 Wall Chaser shown with its main components and included accessories, such as diamond discs, wrenches, and the dust extraction adapter, all neatly arranged.
4. Spécifications techniques
| Fonctionnalité | Spécification |
|---|---|
| Voltage | 230 V - 240 V ~50 Hz |
| Consommation d'énergie | 1700 W |
| Classe de protection | II |
| Vitesse | 4000 min-1 (tr/min) |
| Diamètre du disque de coupe | 150 mm |
| Bore Capacity | 22.2 mm |
| Groove Depth | Environ. 10 à 40 millimètres |
| Largeur de la rainure | Approx. 14, 19, and 26 mm |
| Longueur d'onde du laser | 650 nm |
| Puissance de sortie du laser | 1 mW |
| Laser Divergence Angle | 1.5 mrad |
| Poids | 7.91 kg |
| Dimensions (paquet) | 39.1 x 37.79 x 23.4 cm |
5. Configuration et assemblage
5.1 Installing Diamond Discs
To install the diamond cutting discs:
- Assurez-vous que l'outil est débranché de la source d'alimentation.
- Ouvrez le capot de protection.
- Place the first diamond disc onto the spindle, ensuring the rotation arrow on the disc matches the arrow on the tool.
- Add the appropriate spacers to achieve the desired cutting width (14mm, 19mm, or 26mm).
- Place the second diamond disc, again matching the rotation arrow.
- Secure the discs and spacers with the flange and nut, tightening with the provided spanner wrench.
- Fermez bien le couvercle de protection.
Video 1: Detailed instructions on how to correctly install the diamond cutting discs and spacers into the wall chaser for various groove widths.

Figure 2 : Gros plan view of the diamond cutting discs and the various spacers used to adjust the groove width, illustrating the different size options available.
5.2 Attaching Dust Extraction Adapter
For a cleaner work environment and to reduce dust exposure, attach the dust extraction adapter to a suitable vacuum cleaner.
- Locate the dust extraction port on the wall chaser.
- Securely attach the provided dust extractor adapter to this port.
- Connect a vacuum cleaner hose to the adapter.

Figure 3: The dust extraction adapter is shown connected to the wall chaser, ready to be attached to a vacuum cleaner for effective dust management during operation.
6. Mode d'emploi
6.1 Adjusting Cutting Depth and Width
The wall chaser allows for precise adjustment of both cutting depth and width:
- Réglage de la profondeur : Use the depth adjustment screw to set the desired cutting depth between 10mm and 40mm. Refer to the markings on the tool for accurate setting.
- Réglage de la largeur : Adjust the groove width by adding or removing spacers between the diamond discs during installation. Available widths are 14mm, 19mm, and 26mm.

Figure 4 : Un aperçu détaillé view of the wall chaser highlighting the depth adjustment mechanism, showing the screw and scale for precise control over cutting depth.
6.2 Utilisation du guide laser
The integrated laser guide assists in achieving straight and accurate cuts:
- Locate the laser ON/OFF button on the tool.
- Press the button to activate the laser line, which will project onto your workpiece.
- Align the laser line with your marked cutting path for precise guidance.

Figure 5: A close-up image of the wall chaser's laser sight, showing the laser beam projecting a guide line for accurate cutting.
6.3 Conseils généraux d'utilisation
- Fonction de démarrage progressif : The tool is equipped with a soft start function to prevent sudden jolts upon startup, ensuring smoother operation and extending motor life.
- Protection contre les surcharges : An integrated overload protection system will automatically shut down the tool if it detects excessive load, preventing damage to the motor. Allow the tool to cool down before resuming operation.
- Working Direction: Always pull the wall chaser towards you or push it downwards along the marked line for optimal control and safety.
Video 2: Demonstration of the FERM WSM1008 Wall Slotter (similar to MNFS01) in operation, showing how to make precise cuts in a wall.
Video 3: An operational video showcasing the wall chaser in action, demonstrating its effectiveness in creating grooves for various applications.
7. Maintenance et entretien
Un entretien régulier garantit la longévité et les performances optimales de votre rainureuse murale.
- Nettoyage: After each use, clean the tool thoroughly. Remove any dust and debris from the ventilation slots and the protective cover. Use a soft brush or compressed air.
- Inspection de la lame : Regularly inspect the diamond cutting discs for wear or damage. Replace worn or chipped discs immediately to maintain cutting efficiency and safety.
- Inspection des câbles : Check the power cable for any signs of damage, cuts, or fraying. Do not use the tool if the cable is damaged.
- Stockage: Store the wall chaser in its carrying case in a dry, secure place, out of reach of children.
8. Dépannage des problèmes courants
If you encounter problems with your wall chaser, refer to the following troubleshooting guide:
- L'outil ne démarre pas :
- Vérifiez que le câble d'alimentation est bien branché dans une prise de courant fonctionnelle.
- Verify that the ON/OFF switch is fully engaged.
- Vérifiez si les disjoncteurs ont sauté ou si les fusibles ont grillé.
- Performances de coupe réduites :
- Inspect diamond discs for wear or damage. Replace if necessary.
- Ensure the cutting depth and width settings are appropriate for the material.
- Poussière excessive :
- Ensure the dust extraction adapter is properly connected to a functional vacuum cleaner.
- Check if the vacuum cleaner bag is full or the filter is clogged.
- Tool Shuts Off During Operation:
- This may indicate the overload protection has activated. Reduce pressure on the tool and allow it to cool down.
- Check for blockages around the cutting discs.
9. Garantie et support client
For warranty information, service, or technical support, please refer to the contact details provided in your product packaging or visit the official Timbertech webConsultez le site. Conservez votre reçu d'achat comme preuve d'achat pour toute réclamation au titre de la garantie.