1. Introducció i informació de seguretat
This manual provides essential instructions for the safe and effective operation, maintenance, and troubleshooting of your ECHO CS-271T-12 Gas Chain Saw. Read and understand all instructions and safety precautions before operating the chain saw. Failure to do so can result in serious injury or death.
Precaucions de seguretat importants:
- Always wear appropriate personal protective equipment (PPE), including a helmet, eye protection, hearing protection, heavy-duty gloves, and safety boots.
- Never operate the chain saw when fatigued, under the influence of alcohol, drugs, or medication.
- Assegureu-vos que la zona de treball estigui lliure de vianants, nens i mascotes.
- Inspect the chain saw before each use for loose parts, damage, or wear.
- Sigues conscient del cobeig i de com evitar-lo.
- Manipuleu el combustible amb molta cura; és altament inflamable.

Figura 1: Mésview of the ECHO CS-271T-12 Gas Chain Saw. This image displays the complete chain saw with its 12-inch bar and chain, highlighting its compact design.
2. Muntatge i muntatge
2.1 Desembalatge i inspecció
Carefully remove the chain saw and all components from the packaging. Inspect for any shipping damage. If any damage is found, do not operate the unit and contact your dealer.
2.2 Instal·lació de la barra i la cadena
- Assegureu-vos que el fre de la cadena estigui desactivat.
- Remove the chain cover nuts and chain cover.
- Place the chain around the clutch drum and guide bar, ensuring the cutting edges face forward on the top of the bar.
- Mount the guide bar onto the studs, aligning the chain tensioner pin with the hole in the guide bar.
- Replace the chain cover and hand-tighten the nuts.
- Adjust chain tension using the side access chain tensioner until the chain is snug but can still be pulled freely by hand.
- Fully tighten the chain cover nuts.
2.3 Combustible i oli de cadena
This chain saw requires a specific fuel mixture and chain lubricant.
- Mescla de combustible: Use a 50:1 ratio of high-quality 2-stroke engine oil to unleaded gasoline (minimum 89 octane). Mix thoroughly in a separate, approved fuel container.
- Oli de cadena: Use a high-quality bar and chain oil. Do not use waste oil or motor oil, as this can damage the chain and bar.
Fill the fuel tank and chain oil reservoir, ensuring not to overfill. Wipe up any spills immediately.

Figure 2: Top handle view of the ECHO CS-271T-12, showing the model number label and the ergonomic handle design for control.
3. Instruccions de funcionament
3.1 Arrencada del motor (arrencada en fred)
- Place the chain saw on a firm, flat surface. Ensure the chain brake is engaged.
- Press the purge bulb several times until fuel is visible in the return line.
- Moveu la palanca de l'asfixia a la posició FULL CHOKE.
- Pull the starter handle firmly and quickly until the engine fires (usually 1-3 pulls). Do not pull the rope to its full extension.
- Once the engine fires, move the choke lever to the HALF CHOKE position.
- Pull the starter handle again until the engine starts and runs.
- Once the engine is running, move the choke lever to the RUN position. Allow the engine to warm up for a few moments.
- Disengage the chain brake before beginning cutting operations.
3.2 Arrencada del motor (arrencada en calent)
- Assegureu-vos que el fre de cadena estigui activat.
- Moveu la palanca de l'obturador a la posició RUN.
- Pull the starter handle firmly and quickly until the engine starts.
- Disengage the chain brake before beginning cutting operations.
3.3 Tècniques de tall
Always maintain a firm grip with both hands on the chain saw handles. Stand with your feet apart for balance. Avoid cutting with the tip of the guide bar to prevent kickback.
- Limbing: Remove branches from a fallen tree. Work from the bottom up, supporting the branch if necessary to prevent pinching.
- Enganxament: Cut a fallen log into sections. Be aware of tension and compression in the wood to avoid pinching the bar.
4. Manteniment
Regular maintenance ensures optimal performance and extends the life of your chain saw.
4.1 Comprovacions diàries
- Comproveu la tensió de la cadena.
- Verify chain sharpness.
- Inspect the guide bar for wear or damage.
- Check chain oil flow.
- Netegeu el filtre d'aire.
4.2 Esmolat de la cadena
A sharp chain is crucial for safe and efficient cutting. Use a round file of the correct diameter (refer to chain specifications) and a filing guide. File all cutters to the same length and angle.
4.3 Neteja del filtre d'aire
Remove the air filter cover and clean the filter element. Wash foam filters with warm, soapy water, rinse, and allow to dry completely before reinstallation. Replace damaged filters.
4.4 Inspecció de la bugia
Remove the spark plug and inspect for fouling or wear. Clean or replace as necessary. Ensure the correct gap is set.

Figura 3: lateral view of the ECHO CS-271T-12 engine, showing the cooling fins and general engine layout, relevant for maintenance access.
5. Solució De Problemes
This section addresses common issues you might encounter with your ECHO CS-271T-12 chain saw.
| Problema | Causa possible | Solució |
|---|---|---|
| El motor no arrenca | No fuel, incorrect choke setting, fouled spark plug, flooded engine | Check fuel level, adjust choke, clean/replace spark plug, follow de-flooding procedure in main manual |
| El motor funciona malament/falta potència | Dirty air filter, stale fuel, incorrect fuel mixture, dull chain | Clean air filter, use fresh fuel, ensure correct fuel mix, sharpen chain |
| La cadena no talla de manera eficient | Dull chain, incorrect chain tension, worn guide bar | Sharpen chain, adjust tension, inspect/replace guide bar |
| Chain oil not flowing | Empty oil tank, clogged oil port, damaged oil pump | Refill oil tank, clean oil port, consult service center for pump issues |
6. Especificacions
| Característica | Especificació |
|---|---|
| Marca | ECO |
| Número de model | CS-271T-12 |
| Font d'alimentació | Funciona amb gasolina |
| Desplaçament del motor | 26.9 CC |
| Cavalls de força | 5.3 CV |
| Longitud de la cadena | 12 polzades |
| Dimensions del producte (L x A x A) | 12" x 10" x 10" |
| Pes de l'article | 10.18 lliures |
| UPC | 743184001974 |
| Sistema d'arrencada | i-30 (reduced effort starting) |
| Característiques de seguretat | Inertia-type chain brake, vibration-reduction system |
7. Garantia i Suport
ECHO products are backed by a comprehensive warranty. For specific warranty details, please refer to the warranty card included with your product or visit the official ECHO website. For technical support, parts, or service, contact your authorized ECHO dealer or visit www.echo-usa.com.





