1. Introdución
This manual provides essential instructions for the safe and efficient operation, maintenance, and troubleshooting of your ECHO ECS300T/S 10-inch (25cm) Sprocket Nose Bar Chainsaw. Please read this manual thoroughly before using the chainsaw and keep it for future reference. Adherence to these instructions will ensure optimal performance and user safety.
2. Instrucións de seguridade
Manexar unha motoserra pode ser perigoso se non se seguen as precaucións de seguridade axeitadas. Priorice sempre a seguridade para evitar lesións graves ou a morte.
- Equipos de protección individual (EPI): Always wear a safety helmet, eye protection, hearing protection, heavy-duty gloves, chainsaw protective trousers or chaps, and safety boots.
- Área de traballo: Asegúrate de que a zona de traballo estea libre de transeúntes, nenos e animais domésticos. Mantén unha distancia de seguridade doutras persoas e obxectos.
- Comprobación previa á operación: Before each use, inspect the chainsaw for loose parts, damage, or wear. Ensure the chain brake is functional and the chain is properly tensioned and sharp.
- Fuel Handling (for gasoline models): Handle fuel in a well-ventilated area, away from ignition sources. Do not smoke while refueling. Wipe up any spills immediately.
- Prevención de contragolpes: Be aware of the risk of kickback. Avoid cutting with the tip of the guide bar. Maintain a firm grip with both hands.
- Base estable: Always maintain secure footing and balance. Do not overreach.
- Condicións meteorolóxicas: Do not operate the chainsaw in adverse weather conditions such as heavy rain, strong winds, or icy conditions.
- Fatiga: Do not operate the chainsaw when tired or under the influence of alcohol or medication.
3. Produto rematadoview
The ECHO ECS300T/S is a compact and powerful chainsaw designed for various cutting tasks. Familiarize yourself with its components for safe and effective use.

Unha sobrecarga view of the ECHO ECS300T/S chainsaw, featuring a grey and black body with a 10-inch sprocket nose bar and chain. The ECHO logo is visible on the bar and engine casing.
Compoñentes clave:
- Barra de guía: The metal bar that supports and guides the saw chain. This model features a 10-inch (25cm) sprocket nose bar.
- Cadena de serra: The cutting chain that rotates around the guide bar. This model uses a 91PX specification chain.
- Carcasa do motor: Contains the engine, fuel tank, and oil tank.
- Asa dianteira: Para agarrar a motoserra coa man esquerda.
- Mango traseiro: For gripping the chainsaw with your right hand, incorporating the throttle trigger and safety lock-out.
- Freo de cadea: A safety device designed to stop the chain instantly in case of kickback.
- Manivela de arranque: Úsase para arrancar o motor manualmente.
- Tapón de combustible: For the gasoline tank.
- Tapón de aceite: For the chain lubricant oil tank.
4. Configuración
4.1 Desembalaxe
Carefully remove all components from the packaging. Check for any damage during transit. Ensure all parts listed in the packing list are present.
4.2 Mestura de combustible e aceite
This chainsaw operates on a mixture of gasoline and 2-stroke engine oil. Use high-quality unleaded gasoline and a premium 2-stroke engine oil specifically designed for air-cooled engines. Refer to the engine oil manufacturer's instructions for the correct mixing ratio, typically 50:1 (50 parts gasoline to 1 part oil) or 25:1. Mix fuel in a separate, approved fuel container. Always add oil to gasoline, not the other way around, and shake well before filling the fuel tank.
- Fill the fuel tank with the prepared fuel mixture.
- Fill the chain oil tank with high-quality bar and chain lubricant. Do not use waste oil or motor oil.
4.3 Instalación da barra e da cadea
- Ensure the engine is off and the chain brake is engaged.
- Retire as porcas da tapa da cadea e a tapa da cadea.
- Place the guide bar onto the studs, ensuring the chain tension pin engages with the hole in the guide bar.
- Carefully fit the saw chain around the sprocket and into the guide bar groove. Ensure the cutting edges of the chain are facing forward on the top of the guide bar.
- Replace the chain cover and loosely tighten the nuts.
4.4 Axuste da tensión da cadea
Proper chain tension is crucial for safe and efficient operation. The chain should be snug against the guide bar, but still able to be pulled around by hand with light effort. There should be no sag on the underside of the guide bar.
- With the chain cover nuts slightly loose, use the tensioning screw (usually located on the side of the chainsaw) to adjust the chain tension.
- Lift the tip of the guide bar slightly while tightening the chain cover nuts firmly.
- Check the tension again. The chain should not bind and should move freely.
5. Funcionamento
5.1 Arranque do motor
Always start the chainsaw on a firm, flat surface, ensuring the chain brake is engaged.
Inicio frío:
- Enganche o freo da cadea.
- Set the choke lever to the FULL CHOKE position.
- Prema a bulbo do cebador varias veces ata que o combustible sexa visible na liña de retorno.
- Pull the starter handle firmly and smoothly until the engine fires (usually a few pulls).
- Once the engine fires, immediately push the choke lever to the HALF CHOKE or RUN position.
- Tirar da manivela de arranque de novo ata que o motor arranque e funcione.
- Allow the engine to warm up for a few moments, then disengage the chain brake and gently blip the throttle to return to idle.
Inicio quente:
- Enganche o freo da cadea.
- Set the choke lever to the RUN position.
- Tire da manilla de arranque ata que o motor arranque.
5.2 Técnicas de corte
Always use both hands to operate the chainsaw. Maintain a firm grip and stable footing.
- Tala: For felling small trees, plan your escape route and ensure no one is in the fall zone. Make a directional notch first, then a felling cut from the opposite side.
- Limbing: Remove branches from a felled tree. Work from the base towards the top, supporting the branch if it's under tension.
- Retorno: Cutting a felled tree into sections. Be aware of pinching and rolling logs. Use a sawhorse or support logs to keep the chain off the ground.
5.3 Parar o motor
To stop the engine, simply press the engine stop switch to the OFF position. Engage the chain brake immediately after stopping.
6. Mantemento
Regular maintenance is essential for the longevity and safe operation of your chainsaw.
6.1 Comprobacións diarias
- Comprobe a tensión e o afiado da cadea.
- Inspeccione a barra guía para ver se presenta desgaste ou danos.
- Verify chain brake functionality.
- Check fuel and chain oil levels.
- Limpar o filtro de aire.
6.2 Afiado da cadea
A sharp chain is critical for efficient cutting and safety. Sharpen the chain regularly using a round file of the correct diameter (refer to chain specifications, typically 4.0mm for 91PX chain) and a flat file for depth gauges. Maintain consistent angles and file all cutters evenly.
6.3 Mantemento da barra guía
- Limpe a ranura da barra guía para eliminar o serrín e os residuos.
- Xire a barra guía periodicamente para garantir un desgaste uniforme.
- Check the sprocket nose for smooth rotation and lubrication.
6.4 Limpeza do filtro de aire
Remove the air filter and clean it with warm, soapy water. Rinse thoroughly and allow it to dry completely before reinstallation. Replace if damaged or excessively dirty.
6.5 Mantemento da bujía
Inspect the spark plug periodically. Clean any carbon deposits and adjust the electrode gap if necessary. Replace the spark plug annually or if it shows signs of wear.
6.6 Almacenamento
Before long-term storage, drain the fuel tank or run the engine until it runs out of fuel. Clean the chainsaw thoroughly. Store in a dry, secure location away from children and ignition sources.
7 Solución de problemas
Esta sección aborda problemas comúns que podes atopar coa túa motoserra.
| Problema | Causa posible | Solución |
|---|---|---|
| O motor non arranca | No fuel, incorrect choke setting, fouled spark plug, clogged fuel filter, engaged chain brake. | Check fuel level, adjust choke, clean/replace spark plug, clean/replace fuel filter, disengage chain brake. |
| Chainsaw cuts poorly | Dull chain, incorrect chain tension, worn guide bar, insufficient chain oil. | Sharpen chain, adjust tension, replace guide bar, check oil level and oiler function. |
| O motor carece de potencia | Clogged air filter, incorrect fuel mixture, worn spark plug, carburetor issues. | Clean air filter, use correct fuel mixture, replace spark plug, consult service center for carburetor. |
| Vibración excesiva | Loose components, damaged chain or guide bar. | Tighten all fasteners, inspect and replace damaged chain/bar. |
8. Especificacións
- Marca: ECO
- Modelo: ECS300T/S
- Dimensións do produto: 25.7 cm (longitud) x 21.4 cm (ancho) x 21 cm (alto)
- Peso do produto: 3 quilogramos
- Lonxitude da cadea: 25 cm (10 polgadas)
- Guide Bar Type: Sprocket Nose Bar
- Chain Specification: 91PX
- Fonte de enerxía: Gasoline Engine (based on visual evidence and typical chainsaw design for 91PX chain)
- Primeira data dispoñible en Amazon.co.jp: 2024/6/4
9. Garantía e soporte
Specific warranty details and direct support contact information are not available in the provided product data. For warranty claims, technical support, or service, please refer to the documentation included with your purchase or contact your authorized ECHO dealer or the retailer from whom you purchased the product.





