Operation, Fuel Requirements, Handling Fuel

OPERATION	CS-310

OPERATION

Fuel

Alternative fuels, such as E-15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel lines, gaskets, carburetors and other engine components.

Fuel Requirements

Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood alcohol) is NOT approved. ECHO brand Power Fuel™ is 93 octane, ethanol-free fuel premixed with ECHO Red Armor® engine oil at 50:1 ratio. Use of ECHO Power Fuel™ is recommended to extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.

Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used. Echo brand premium Power Blend X™ Universal 2-Stroke Oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD certified oil, such as Echo premium Power Blend X™, will void the two-stroke engine warranty.

Echo premium Power Blend X™ Universal 2-Stroke Oil may be mixed at 50:1 ratio for application in all Echo engines sold in the past regardless of ratio specified in those manuals.

Handling Fuel

Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury may result.

•Use an approved fuel container.

•DO NOT smoke near fuel.

•DO NOT allow flames or sparks near fuel.

•Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.

•NEVER refuel a unit when the engine is HOT or RUNNING!

•DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.

•DO NOT overfill fuel tank. Wipe up spills immediately.

•Securely tighten fuel tank cap and close fuel container after refueling.

•Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.

•Move at least 3m (10 ft.) from refueling location before starting the engine.

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CS-310 specifications

The Echo CS-310 is a lightweight, highly efficient chainsaw designed for homeowners and light-duty professionals who require portability and reliability. This model stands out in the market due to its combination of performance, ease of use, and innovative features, making it an ideal choice for various cutting tasks.

One of the standout features of the Echo CS-310 is its powerful 30.5cc engine. This engine is designed to deliver exceptional performance while maintaining fuel efficiency, making it suitable for extended use in garden and yard maintenance. With a maximum power output of 1.3 horsepower, it provides ample power for cutting through branches, logs, and firewood with ease.

The engine incorporates a high-efficiency, two-stroke design that not only optimizes fuel consumption but also minimizes harmful emissions. This eco-friendly approach ensures that the Echo CS-310 meets stringent environmental standards while still delivering outstanding cutting capabilities. The chainsaw's easy starting system is another plus, as it features a unique primer bulb and a decompression valve that simplifies the starting process, allowing users to get to work quickly and without frustration.

The lightweight design of the CS-310, weighing in at just around 8.8 lbs, makes it highly maneuverable. This is essential for users who may need to navigate through tight spaces or work overhead for extended periods. Coupled with an ergonomic handle, the chainsaw provides a comfortable grip that reduces fatigue during use, making long sessions less taxing on the operator.

Equipped with a 14-inch bar and chain, the Echo CS-310 strikes a perfect balance between cutting performance and usability. The chain is designed for optimal cutting speed and durability, ensuring reliable operation across various materials. Additionally, the tool-less chain tensioning system allows users to easily adjust the chain tension without the need for any tools, enhancing convenience between cuts.

Safety features are also a focal point of the Echo CS-310, incorporating a chain brake that automatically stops the chain in case of kickback, reducing the risk of accidents during operation. The chainsaw's rear-handle design provides added stability and control, further improving user safety.

In conclusion, the Echo CS-310 chainsaw offers an exceptional blend of lightweight design, powerful performance, and user-friendly features, making it an excellent choice for both casual users and those tackling regular outdoor chores. Whether trimming trees or cutting firewood, this model delivers reliability and efficiency, satisfying diverse cutting needs while emphasizing safety and comfort.