Echo SRM-280S manual Exhaust Port Cleaning

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1.Remove 2 muffler cover screws and muffler cover (A).

2.Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder.

3.Remove spark arrestor screen cover (B), gasket (C), and screen

(D), from muffler body.

4.Clean carbon deposits from muffler components.

NOTE

When cleaning carbon deposit, be careful not to damage the cata- lytic element inside muffler.

5.Replace screen if it is cracked, plugged, or has holes burned through.

6.Assemble components in reverse order.

A

D

C

B

Exhaust Port Cleaning

Level 2.

Tools required: 4 mm Hex Wrench, 8 mm Open End WrenchWood or plastic scraper

Parts Required: As needed: Heat Shield

1.Remove spark plug lead from spark plug, and remove muffler cover (2 screws).

2.Place piston at top dead center. Remove muffler (A), heat shield

(B), and eyeplate (C).

3.Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port.

IMPORTANT

Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.

4.Inspect heat shield, and replace if damaged.

5.Install heat shield, muffler, and eyeplate.

6.Tighten muffler mounting bolts (or nuts) to 53-70 in•lbf (60-80 kgf•cm).

7.Install muffler cover and attach spark plug lead.

8.Start engine, and warm to operating temperature.

9.Stop engine, and re-tighten mounting bolts (or nuts) to specifica- tions.

A

B

C

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Contents Grass Trimmer/Brush Cutter Introduction Safety manualTable of Contents Operators manualPersonal condition and safety equipment Safety Manual safety symbols and important informationInternational symbols Grass Trimmer/Brush Cutter Operators ManualHand Protection Physical ConditionEye Protection Hearing ProtectionClear the Work Area Repetitive Stress InjuriesRead the Manuals Keep a Firm GripEmission Control exhaust & evaporative EquipmentEPA 2010 and Later and/or C.A.R.B. Tier Description Shaft DecalPage Contents Assembly Plastic shield installationTo advance trimmer line Nylon line head installationNylon line replacement Remove nylon line headGrass Trimmer/Brush Cutter 11 Operators Manual Front handle installationOperation Grass/Weed Blades Require Operation with bladesPreparing the Trimmer/Brush Cutter for Blade Use Brush/Clearing Blades RequireChoosing the Correct Blade Fuel Fuel RequirementsGrass Trimmer/Brush Cutter 15 Operators Manual Mixing InstructionsStarting cold engine Purge BulbStarting warm engine Stopping engineMaintenance intervals MaintenanceSkill levels Air filter Fuel filterSpark plug Cooling systemExhaust system Grass Trimmer/Brush Cutter 21 Operators ManualSpark Arrestor Screen Exhaust Port Cleaning Engine Break-In Carburetor adjustmentGrass Trimmer/Brush Cutter 23 Operators Manual High Altitude OperationDrive Shaft SRM-280 Only Gear HousingLubrication SRM-280S OnlyEchomatic Pro Trimmer Head Sharpening metal blades Grass Trimmer/Brush Cutter Operators Manual Long Term Storage over 30 days StorageSpecifications Grass Trimmer /Brush Cutter Operator s ManualWarranty Statements Exceptions99922201032 12/03/09 01/2010 Grass Trimmer/Brush Cutter 33 Operators Manual Page Grass Trimmer/Brush Cutter 35 Operators Manual Servicing Information parts/serial number ServiceWarranty registration Additional or replacement manuals Echo consumer product support

SRM-280S, SRM-280 specifications

The Echo SRM-280 and SRM-280S are robust and versatile string trimmers designed for both residential and commercial use. These trimmers are part of Echo's reputation for producing reliable, high-quality outdoor power equipment, and they have gained recognition in the landscaping industry due to their powerful performance and ease of use.

One of the standout features of the SRM-280 is its professional-grade 28.1cc engine. This powerful engine delivers impressive power, making it suitable for tackling the toughest vegetation. The SRM-280S variant comes with a slightly differentiated design, boasting added features such as easier starting mechanisms and user-friendly controls that enhance the overall user experience.

A key aspect of these models is their lightweight design. Weighing in at around 11.2 pounds, they are easy to maneuver for extended periods without undue fatigue. This makes them ideal for both homeowners and landscape professionals who may need to use the trimmers for hours on end. The ergonomic design of the handle further enhances comfort during operation, allowing for better control and precision when trimming.

A notable technology integrated into both models is Echo's Load-Shift Technology, which allows for efficient cutting by optimizing the engine's performance based on the load. This means that as the user encounters thicker grass or weeds, the engine adjusts to maintain power without stalling. The result is increased efficiency and a cleaner cut.

Both the SRM-280 and SRM-280S come equipped with a durable, dual-line cutting head that is easy to reload. The 0.095-inch cutting line offers an ideal balance of durability and cutting efficiency, allowing users to tackle tougher jobs without worrying about line wear. Additionally, the head design minimizes line tangling, further streamlining the trimming process.

Fuel efficiency is another highlight, as both trimmers boast a significant reduction in emissions thanks to Echo's advanced 2-stroke engine technology. This makes them a more environmentally-friendly choice compared to some older models, aligning with the growing demand for greener equipment.

In summary, the Echo SRM-280 and SRM-280S string trimmers provide users with a combination of power, efficiency, and user-centric design. With their professional-grade engines, lightweight construction, and advanced technology features, these trimmers stand out as reliable tools for anyone looking to maintain pristine lawns and landscapes. Whether for commercial or residential purposes, they offer unmatched performance and ease of use, making them a worthwhile investment for any landscaping endeavor.
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