Echo SRM-280S manual Sharpening metal blades

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sharpening metal blades

Three styles of metal blades are approved for use on the ECHO Brush Cutter. The 8-tooth blade can be sharpened during normal mainte- nance. The clearing blade and 80 tooth blade require professional service.

Before sharpening, CLOSELY inspect blade for cracks (look at the bottom of each tooth and the center mounting hole closely), missing teeth and bending. If ANY of these problems are discovered, replace the blade.

When sharpening a blade, always remove the same amount of materials from each tooth to maintain balance. A blade that is not balanced will cause unsafe handling due to vibration and can result in blade failure.

Tool required: Flat file (preferred). Electric grinder if special care is used. Round (rat tail) file for gullet (radius).

1.File each tooth at a 30 degree angle a specific number of times, eg. 4 strokes per tooth. Work your way around the blade until all teeth are sharp.

2.DO NOT file the 'gullet' (radius) of the tooth with the flat file.

The radius must remain. A sharp corner will lead to a crack and blade failure.

IMPORTANT

If an electric grinder is used, use care not to overheat teeth, do not allow tips/tooth to glow red or turn blue. DO NOT place blade in cooling water. This will change the temper of the blade and could result in blade failure.

3.After sharpening teeth, check each tooth radius for evidence of a square (sharp) corner. Use the round (rat tail) file to renew the radius.

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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 GripEPA 2010 and Later and/or C.A.R.B. Tier EquipmentEmission Control exhaust & evaporative Description Shaft DecalPage Contents Assembly Plastic shield installationTo advance trimmer line Nylon line head installationNylon line replacement Remove nylon line headOperation Front handle installationGrass Trimmer/Brush Cutter 11 Operators Manual 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 engineSkill levels MaintenanceMaintenance intervals Air filter Fuel filterSpark plug Cooling systemSpark Arrestor Screen Grass Trimmer/Brush Cutter 21 Operators ManualExhaust system 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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