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1.POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.

2.THROTTLE TRIGGER LOCKOUT - This lever must be held during starting. Operation of the throttle trigger is prevented unless throttle trigger lockout lever is engaged.

3.STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to RUN, BACK to STOP.

4.THROTTLE TRIGGER - Controls engine speed. Spring loaded to return to idle when released. During accelera- tion, press trigger gradually for best operating technique.

5.DRIVE SHAFT ASSEMBLY - Includes the Gear Housing assembly, metal drive shaft and Safety Decal.

6.U-HANDLE- Required for metal blade operation.

7.HIP PAD - Used to protect hip/leg and clothing when using U-handle equipped unit.

8.SHOULDER HARNESS- An adjustable strap that suspends the unit from the operator. Using the strap reduces operator fatigue.

9.BLADE - Circular blade for grass, weed or brush cutting applications. Harness, metal shield & U-handles required for blade operation.

10.METAL BLADE SHIELD - Required when unit is equipped with blades. Do not operate unit without shield.

11.SPARK PLUG - Provides spark to ignite fuel mixture.

12.ARM REST - Provides arm rest during operation and protects arm from the hot engine.

13.SPARK ARRESTOR MUFFLER OR SPARK ARRESTOR MUFFLER WITH CATALYST -The muffler or catalytic muffler controls exhaust noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep exhaust area clear of flammable debris.

14.FUEL TANK - Contains fuel and fuel filter.

15.RECOIL STARTER HANDLE - Pull handle slowly until starter engages, then quickly and firmly. When engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.

16.FUEL TANK CAP - Covers and seals fuel tank opening.

17.PURGE BULB - Pumping purge bulb before starting engine draws fresh fuel from the fuel tank, purging air from the carburetor. Pump purge bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump purge bulb an additional 4 or 5 times.

18.AIR CLEANER - Contains replaceable filter element.

19.CHOKE - The choke control is located at the rear of the air cleaner housing. Move choke lever to Cold Start () to close choke for cold start. Move choke lever to "Run" () position to open choke.

20.DECOMPRESSION BUTTON - Push button to assist starting. Automatically resets after engine starts and runs.

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Echo SRM-410U manual
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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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