FEIN AHKS 18-57 AS (71360461000)
FEIN AHKS 18-57 AS 18V Cordless Brushless AMPShare F-Iron Cut 150mm Circular Saw User Manual
Model: AHKS 18-57 AS (71360461000)
Brand: FEIN
1. Introducció
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your FEIN AHKS 18-57 AS 18V Cordless Brushless AMPShare F-Iron Cut 150mm Circular Saw. Please read this manual thoroughly before initial use and keep it for future reference. This circular saw is designed for cutting metal materials with precision and efficiency.
2. Instruccions de seguretat
Always observe basic safety precautions to reduce the risk of fire, electric shock, and personal injury. This tool is powerful and requires careful handling.
- Equips de protecció individual: Always wear safety glasses, hearing protection, and appropriate work gloves when operating the saw.
- Àrea de treball: Ensure your work area is clean, well-lit, and free from obstructions. Keep bystanders away.
- Condició de l'eina: Inspect the tool, blade, and battery for any damage before each use. Do not operate a damaged tool.
- Peça de treball segura: Fixeu sempre la peça de treball fermament per evitar que es mogui durant el tall.
- Adherència adequada: Maintain a firm grip on the saw with both hands during operation.
- Swarf Management: The saw is equipped with a swarf collecting vessel. Ensure it is properly attached and emptied regularly to prevent accumulation of hot swarf.
- Seguretat de la bateria: Utilitzeu només compatibles AMPShare batteries. Do not expose batteries to extreme temperatures or moisture.
- Dead Man's Switch: The saw features a dead man's switch for safety. The tool will stop when the switch is released.
- Protecció de reinici: Be aware of restart protection, which prevents the tool from automatically restarting after a power interruption.
- Temperature Shutdown: The tool has temperature-based shutdown to prevent overheating. Allow the tool to cool if this occurs.
- Pendulum Protection Cover: Ensure the pendulum protection cover is functioning correctly and not obstructed.
3. Components del producte
Familiarize yourself with the main parts of your FEIN AHKS 18-57 AS circular saw.

Figura 3.1: En general view of the FEIN AHKS 18-57 AS Cordless Brushless Circular Saw, highlighting its compact design and the battery interface.

Figura 3.2: Side profile of the circular saw, showing the base plate, blade guard, and ergonomic handle design.

Figura 3.3: Detallada view de la AMPShare battery connection area and the tool's control panel, including speed settings or indicators.
- Carcassa del motor: Contains the brushless motor.
- Mànec: Ergonomically designed for secure grip.
- Protector de fulla: Retractable guard for blade protection.
- Placa base: Proporciona estabilitat i guia la serra al llarg de la peça de treball.
- Fulla Clamp/Arbor: Secures the circular saw blade.
- Swarf Collecting Vessel: Collects metal chips and debris during cutting.
- Interfície de bateria: Compatible amb AMPShare 18V batteries.
- Guide Rail Adapter: Removable adapter for compatibility with common guide rails.
4. Configuració
4.1 Instal·lació de la bateria
- Ensure the saw is switched off and the dead man's switch is disengaged.
- Alineeu el AMPShare 18V battery with the battery slot on the saw.
- Feu lliscar la bateria a la ranura fins que sentiu un clic i encaixi fermament al seu lloc.
- Per treure-la, premeu el botó d'alliberament de la bateria i feu-la lliscar cap a fora.
4.2 Blade Installation/Change
Desconnecteu sempre la bateria abans de canviar la fulla.
- Place the saw on a stable surface.
- Locate the blade locking mechanism (if present) and engage it to prevent blade rotation.
- Using the provided socket head wrench (5 mm), loosen the arbor nut.
- Carefully open the blade guard and remove the old blade.
- Install the new 150mm circular saw blade for construction steel, ensuring the rotation direction matches the arrow on the saw.
- Tighten the arbor nut securely with the wrench.
- Disengage the blade locking mechanism and ensure the blade guard moves freely.
4.3 Col·locació d'accessoris
- Swarf Collecting Vessel: Attach the swarf collecting vessel to the designated port on the saw. Ensure it is fitted securely to collect up to 80% of hot swarf.
- Guide Rail Adapter: For straight, long cuts, attach the removable guide rail adapter to the saw's base plate. This allows compatibility with common guide rails (e.g., Makita, Bosch, Festool, Mafell).
- Parada paral·lela: Utilize the parallel stop for consistent rip cuts. Insert it into the designated slot on the base plate and adjust to the desired width.
5. Instruccions de funcionament
5.1 Engegada/apagada
- To turn on the saw, depress the dead man's switch. The saw will begin to operate.
- To turn off the saw, release the dead man's switch. The efficient brake will stop the blade within approximately 0.2 seconds.
5.2 Making Cuts
This saw is specifically designed for cutting metal. Ensure the correct blade for construction steel is installed.

Figura 5.1: Demonstrates proper two-hand grip while cutting a metal sheet, ensuring stability and control.

Figura 5.2: Illustrates the cutting action on metal, showing the efficient removal of material and controlled spark generation.

Figura 5.3: Shows the saw being used with a compatible guide rail, enabling precise and straight cuts on larger metal pieces.
- Preparació de la peça de treball: Secure the metal workpiece firmly to a stable surface using clamps o un torn.
- Serra de posició: Place the saw's base plate flat on the workpiece, ensuring the blade is aligned with your cut line. The pendulum protection cover will retract as you begin the cut.
- Inicia el tall: Depress the dead man's switch and allow the blade to reach full speed before engaging the material.
- Taxa d'alimentació: Apply steady, even pressure to feed the saw through the material. Do not force the saw; let the tool do the work.
- Tall complet: Continue through the material until the cut is complete. Release the dead man's switch to stop the blade.
- After Cut: Wait for the blade to come to a complete stop before lifting the saw from the workpiece.
5.3 AMPShare Compatibility
The FEIN AHKS 18-57 AS is part of the AMPShare 18V battery system, powered by Bosch. This allows for flexible use of compatible 18V batteries across various professional tools, optimizing efficiency and reducing the need for multiple battery systems.
6. Manteniment
Un manteniment regular garanteix la longevitat i el rendiment òptim de la serra circular.
- Neteja:
- After each use, empty the swarf collecting vessel.
- Use a dry cloth or soft brush to clean dust and debris from the tool's ventilation openings and exterior.
- No utilitzeu dissolvents ni netejadors abrasius.
- Inspecció de la fulla: Regularly inspect the circular saw blade for wear, damage, or dullness. Replace dull or damaged blades promptly to maintain cutting efficiency and safety.
- Cura de la bateria: Guardeu les piles en un lloc fresc i sec. No emmagatzemeu les piles completament descarregades durant períodes prolongats.
- Emmagatzematge: Store the saw in its L-BOXX case in a dry, secure location, out of reach of children.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La serra no arrenca. | Battery not inserted correctly or discharged. Dead man's switch not fully depressed. Restart protection engaged. | Ensure battery is fully charged and properly inserted. Fully depress the dead man's switch. If restart protection is active, release and re-engage the switch. |
| Saw stops during operation. | Overload or overheating. Battery low. | Reduce cutting pressure. Allow tool to cool down if temperature shutdown activates. Replace or recharge battery. |
| Poor cutting performance / Excessive sparks. | Dull or incorrect blade. Improper feed rate. | Replace with a sharp, appropriate blade for metal. Adjust feed rate to a steady, even pace. |
| Swarf not collected effectively. | Swarf collecting vessel full or improperly attached. | Empty the swarf collecting vessel. Ensure it is securely attached to the saw. |
8. Especificacions tècniques
| Característica | Especificació |
|---|---|
| Número de model | AHKS 18-57 AS (71360461000) |
| Font d'alimentació | Alimentat per bateria (AMPShare 18V) |
| Voltage | 18 Volts |
| Tipus de motor | Sense raspalls |
| Diàmetre de la fulla | 150 mm |
| Pes | 6.84 quilos |
| Dimensions del producte (L x A x A) | 28.7 x 17.9 x 24.9 cm |
| Material del mànec | Alumini |
| Components inclosos | 1 x guide rail adapter, 1 x plastic tool case (L-BOXX 238), 1 x parallel stop, 1 x circular saw blade for construction steel, 1 x socket head wrench 5 mm, 1 x swarf collecting vessel (fitted) |
| Recomanació de superfície | Metall |
9. Garantia i Suport
For information regarding warranty coverage, service, or technical support for your FEIN AHKS 18-57 AS circular saw, please refer to the warranty card included with your product or visit the official FEIN weblloc web. Conserveu el comprovant de compra per a qualsevol reclamació de garantia.
For further assistance, contact FEIN customer service through their official channels. Ensure you have your product model number (AHKS 18-57 AS or 71360461000) and purchase details ready.
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