GRASS TRIMMER/BRUSH CUTTER 27

OPERATOR'S MANUAL

CARBURETOR ADJUSTMENT

Engine Break-In

New engines must be operated a minimum of two tanks of fuel before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required.

High Altitude Operation

This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1100 feet ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.

IMPORTANT

If the engine is adjusted for operation above 1100 feet ASL, the carburetor must be re-adjusted when operating the engine below 1100 feet ASL, otherwise severe engine damage may result.

Level 2.

Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017).

Parts required: None.

1.Before adjusting carburetor clean or replace air filter and muffler, “Spark Arrestor Screen”.

2.Make sure the cutting attachment such as hedge clipper blades or circular saw are properly adjusted. Trimmer line should be extended to cut-off knife.

3.Start engine and run several minutes to bring to operating tempera- ture. Flash choke twice during warm-up to clear any air from the fuel system.

4.Idle Speed Adjustment

•Start engine, turn “idle” speed adjustment screw clockwise

(CW) until the cutting attachment begins to turn, then turn screw out counterclockwise (CCW) until attachment stops turning. Turn screw out, CCW, an additional 1/4 turn.

WARNING

Cutting attachment must not turn or move when unit is idling.

CAUTION

When starting, idling adjustment speed should be adjusted not to rotate the cutting attachment. Correct idle speed is adjusted 2300 to 2700 r/min. Or 1/4 turn CCW from the point the cutting attachment stops moving. When there is some trouble with the carburetor, refer to your dealer.

NOTE

Every unit is run at the factory and the carburetor is set in compli- ance with emission regulations. Carburetor adjustments, other than idle speed, must be performed by an authorized ECHO dealer.

Idle speed adjustment screw (T)

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Echo SRM-410U manual Engine Break-In, High Altitude Operation
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SRM-410U specifications

The Echo SRM-410U is a powerful and reliable string trimmer designed to meet the demands of both residential and commercial landscapers. Engineered for exceptional performance and durability, this model has gained popularity among users who require a dependable tool for maintaining lawns, gardens, and outdoor spaces.

One of the standout features of the SRM-410U is its robust 41.5 cc professional-grade, 2-stroke engine. This engine not only delivers impressive power but also ensures efficient fuel consumption, allowing users to tackle tougher grass and weeds with ease. The engine’s design incorporates Echo’s innovative ES-Start system, which reduces the effort required for starting, making it user-friendly even for those inexperienced with power equipment.

The SRM-410U is equipped with a high-capacity fuel tank, which minimizes downtime during operations. The large tank capacity allows for extended use without frequent refueling, thereby improving productivity for users on larger properties or job sites. Additionally, the lightweight design of the unit enhances maneuverability, making it easier to navigate tight spaces, corners, and uneven terrain.

Another significant aspect of the SRM-410U is its advanced cutting system. The trimmer features a professional, heavy-duty bump head that allows for quick line adjustments. The dual-line design provides a wider cutting path, which drastically reduces the time spent trimming. This efficiency is further enhanced by the unit's ability to accommodate various cutting attachments, including brush blades and mulching kits, offering versatility for different landscaping tasks.

The ergonomic construction of the SRM-410U contributes to user comfort during extended periods of use. The handle is designed to reduce vibration, minimizing user fatigue. The unit also features a comfortable shoulder strap which distributes weight evenly, allowing more accessible handling during longer sessions.

In terms of build quality, the Echo SRM-410U is made with durable materials that ensure longevity in harsh working environments. The chassis is constructed to withstand regular wear and tear, making it a dependable choice for professionals who rely on their tools daily.

Overall, the Echo SRM-410U is a powerful, efficient, and versatile string trimmer that caters to the needs of both casual users and landscape professionals. Its combination of advanced technology, robust performance, and user-friendly design makes it a top choice for anyone looking to tackle outdoor trimming tasks effectively.
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