Operator’s Manual SRM-266/S Grass Trimmer / Brushcutter The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Read and understand all provided literature before use. Failure to do so could result in serious injury. This product complies with CAN ICES-2/NMB-2. X7502027106 © 03/2019 ECHO Inc.
TABLE OF CONTENTS SRM-266/S TABLE OF CONTENTS Introduction ................................................................................................. 4 Servicing Information .................................................................................. 4 Parts/Serial Number............................................................................. 4 Service ................................................................................................. 5 ECHO Consumer Product Support .......
SRM-266/S TABLE OF CONTENTS Storage ..................................................................................................... Long Term Storage (Over 30 Days) .................................................. Specifications ........................................................................................... Product Registration ................................................................................. X7502027106 © 03/2019 ECHO Inc.
INTRODUCTION SRM-266/S INTRODUCTION Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are subject to change without notice. Illustrations may include optional equipment and accessories, and may not include all standard equipment. Read and understand all provided literature. Literature contains specifications and information for safety, operation, maintenance, storage and assembly specific to this product.
SRM-266/S SAFETY Service Service of this product during the warranty period must be performed by an Authorized ECHO Service Dealer. For the name and address of the Authorized ECHO Service Dealer nearest you, ask your retailer or call: 1-800-432-ECHO (3246). Dealer information is also available on our Web Site www.echo-usa.com. When presenting your unit for Warranty service/ repairs, proof of purchase is required.
SAFETY SRM-266/S The safety alert symbol accompanied by the word “DANGER” calls attention to an act or condition which WILL lead to serious personal injury or death if not avoided. The safety alert symbol accompanied by the word “WARNING” calls attention to an act or condition which CAN lead to serious personal injury or death if not avoided.
SRM-266/S SAFETY Symbol Description Wear Hand and Foot Protection Symbol Description L Carburetor Adjustment - Low Speed Mixture Safety/Alert Emergency Stop Hot Surface Fuel and Oil Mixture AVOID KICKOUT Keep Bystanders At Least 15 m (50 ft.
SAFETY Symbol SRM-266/S Description Thrown Objects Symbol Description Direction of Blade Personal Condition and Safety Equipment Cancer and Reproductive Harm www.P65Warnings.ca.gov The muffler or catalytic muffler and surrounding cover may become extremely hot. Always keep clear of exhaust and muffler area, otherwise serious personal injury may occur. Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed.
SRM-266/S SAFETY Physical Condition Your judgment and physical dexterity may not be good: • If you are tired or sick • If you are taking medication • If you have taken alcohol or drugs Operate unit only if you are physically and mentally well. Eye Protection ◆ ◆ Eye protection that meets ANSI Z87.1 or CE requirements must be worn whenever you operate the unit. For additional safety, a full-face shield may be worn over safety glasses or goggles to provide protection from sharp branches or flying debris.
SAFETY SRM-266/S • DO NOT WEAR TIES, SCARVES, JEWELRY, or clothing with loose or hanging items that could become entangled in moving parts or surrounding growth. • Keep clothing buttoned or zipped, and keep shirt tails tucked in. Wear sturdy work shoes with nonskid rubber soles: • DO NOT WEAR OPEN TOED SHOES. • DO NOT OPERATE UNIT BAREFOOTED. Keep long hair away from engine and air intake. Retain hair with cap or net. Heavy protective clothing can increase operator fatigue, which may lead to heat stroke.
SRM-266/S SAFETY • Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and also by not smoking. • Limit the hours of operation. Try to fill each day with jobs where operating the unit or other hand-held power equipment is not required. • If you experience discomfort, redness, and swelling of the fingers followed by whitening and loss of feeling, consult your physician before further exposing yourself to cold and vibration.
SAFETY SRM-266/S All over head electrical conductors and communications wires can have electricity flow with high voltages. This unit is not insulated against electrical current. Never touch wires directly or indirectly, otherwise serious injury or death may result. Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death.
SRM-266/S SAFETY Equipment Use only approved attachments. Serious injury may result from the use of a non-approved attachment combination. ECHO INC. will not be responsible for the failure of cutting devices, attachments or accessories which have not been tested and approved by ECHO INC. Read and comply with all safety instructions. ◆ Check unit for loose or missing nuts, bolts, and screws. Tighten or replace as needed.
EMISSION CONTROL ◆ ◆ SRM-266/S Check wiring and connectors for nicks, cuts, exposed wire, or other damage, and repair or replace as needed. Exposed wire or connectors can cause shocks, sparks, and risk of fire or explosion, resulting in serious injury. Check wire terminals for secure connections. Periodically Check fuel system (fuel lines, vent, grommet, fuel tank, and fuel cap) for leaks especially if the unit is dropped.
SRM-266/S DESCRIPTION DESCRIPTION Locate the safety decal(s) on your unit. Make sure the decal(s) is legible and that you understand and follow the instructions on it. If a decal cannot be read, a new one can be ordered from your ECHO dealer. Safety label is for example only. Your label my appear slightly different. 12 11 19 13 18 7 14 17 6 15 5 16 8 4 9 3 2 1 10 X7502027106 © 03/2019 ECHO Inc.
CONTENTS 1. Power Head 2. Throttle Handle - For Right Hand 3. Throttle Trigger Lockout 4. Stop Switch 5. Support Handle - For Left Hand 6. Drive Shaft Assembly SRM-266/S 7. Nylon Cutter Head 8. Cut-off Knife 9. Debris Shield With Cut-off Knife 10. Throttle Trigger 11. Spark Plug 12. Arm Rest 13. Recoil Starter Handle 14. Spark Arrestor Muffler Or Spark Arrestor Muffler With Catalyst 15. Fuel Tank 16. Fuel Tank Cap 17. Choke 18. Air Cleaner 19.
SRM-266/S ASSEMBLY ASSEMBLY Nylon Line Head Installation Parts Required: Nylon Line Head. Wear Gloves or personal injury may result: ◆ Cutoff knife is sharp. ◆ Gearcase and surrounding area may be hot. 1. Be sure adapter plate (C) remains on PTO shaft (A). 2. Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool (D). 3. 4. Thread line head (E) onto shaft by turning it counterclockwise until head is tight against adapter plate.
ASSEMBLY SRM-266/S Semi-automatic nylon line heads must be used only with debris shield with cut-off knife. Using nylon line heads with debris shield without cutoff knife can result in trimmer damage, caused by operation with excessive line length. Note: Your nylon line head may appear different than nylon line head shown. To Advance Trimmer Line See Maintenance Section for nylon line replacement.
SRM-266/S OPERATION OPERATION Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit. Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns.
OPERATION SRM-266/S Pro Maxi-Cut Metal Brush / Tri-Cut Grass/ Metal Grass / Clearing Grass/Weed Weed Blade Weed Blade Blade Blades Support Handle, with or U-Handle or Support Handle with U-handle* without Barrier Barrier Bar Bar Shield with Shield without cutoff knife cutoff knife Harness Upper Plate & Upper/Lower Blade Plates Flat Washer Hex Nut New Cotter Pin *ANSI standards require brush cutters be equipped with a barrier bar or restrictive harness. U-Handle ensures a higher safety factor.
SRM-266/S OPERATION 3-Tooth Grass/Weed Blades may be used wherever the nylon line head is used. DO NOT use this blade for heavy weeds or brush. 8 Tooth Weed/Grass Blade is designed for grass, garden debris and thick weeds up to 19 mm (0.75 in.) diameter. DO NOT use this blade for brush or heavy woody growth. 80 Tooth Brush Blade is designed for cutting brush and woody growth up to 13 mm (0.5 in.) diameter. 22 Tooth Clearing Blade is designed for dense thickets and saplings up to 64 mm (2.5 in.
OPERATION SRM-266/S Use Shoulder/Waist Harness Use of the shoulder/waist harness is recommended for ALL Trimmer/ brushcutter use, not just blade operation. The shoulder/waist harness when used in a trimming operation with nylon line head suspends the trimmer from the operator's shoulder and reduces operator fatigue. During blade operation, the same fatigue reduction is achieved.
SRM-266/S OPERATION Two Stroke Oil - A two-stroke engine oil, such as ECHO branded 2-stroke oils, meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards must be used. ECHO branded 2-stroke oils meet these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-LEGD (ISO/CD 13738) and J.A.S.O. M345-FD certified oil will void the twostroke engine warranty. 2-Stroke engine oil contains petroleum distillates and other additives that may be harmful if swallowed.
OPERATION ◆ ◆ ◆ ◆ ◆ SRM-266/S 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 3 m (10 ft.) from refueling location before starting the engine.
SRM-266/S OPERATION Stored fuel ages. Do not mix more fuel than you expect to use in 30 days, 90 days when a fuel stabilizer is added. Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use. Used oil and gasoline, and soiled towels are hazardous waste materials. Disposal laws vary by locality. Starting Cold Engine The attachment will operate immediately when the engine starts, and could result in possible serious injury.
OPERATION 2. SRM-266/S Choke Move choke lever (B) to COLD START ( ) position. 3. Purge Bulb Pump purge bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional 4 or 5 times. 4. C Recoil Starter Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grasp throttle handle and throttle trigger lockout with left hand and fully depress throttle trigger to wide open position.
SRM-266/S OPERATION Starting Warm Engine The starting procedure is the same as Cold Start except DO NOT close the choke, and do not hold throttle trigger fully depressed. The attachment should not move at idle, otherwise serious personal injury may result. Note: If attachment moves, readjust carburetor according to “Carburetor Adjustment” instructions in this manual or see your ECHO Dealer. 1. Stop Switch Move stop switch button (A) forward away from the STOP position. A 2.
OPERATION SRM-266/S Note: If engine does not start after 5 pulls, use Cold Start Procedure. Stopping Engine 1. Throttle Release throttle trigger and allow engine to return to idle before shutting off engine. 2. A Stop Switch Move stop switch button (A) backward to STOP position. If engine does not stop when stop switch is moved to STOP position, close choke - COLD START position - to stall engine. Have your ECHO dealer repair stop switch before using unit again. 28 X7502027106 © 03/2019 ECHO Inc.
SRM-266/S MAINTENANCE MAINTENANCE Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings. Always stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop before removing obstructions, clearing debris, or servicing unit. Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges and hot surfaces.
MAINTENANCE SRM-266/S Maintenance Intervals COMPONENT/SYSTEM MAINTENANCE PROCEDURE SKILL LEVEL Daily or Before Use Air Filter Choke Shutter Inspect/Clean * 1 Fuel System Inspect 3 Cooling System Inspect/Clean Recoil Starter Rope Inspect/Clean * Screws/Nuts/Bolts Inspect/Tighten/Replace * 2 1 Every Refuel Fuel System Inspect 3 1 3 Months Air Filter Fuel Filter Fuel Cap Gasket Spark Plug Muffler Spark Arrestor Replace * Inspect * 1 Inspect/Clean/Replace * Cylinder Exhaust Port Inspect
SRM-266/S MAINTENANCE Air Filter Level 1 Parts Required: Tune-Up Kit 1. Close choke (COLD START [ ] position). This prevents dirt from entering the carburetor throat when the air filter is removed. Brush accumulated dirt from air cleaner area. 2. Remove air filter cover and air filter retainer from inside cover. Brush dirt from inside cover. 3. Replace filter if it is damaged, very dirty, or the rubber sealing edges are deformed. 4.
MAINTENANCE SRM-266/S Fuel Filter Level 1. Parts Required: TUNE UP KIT. Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury may result. 1. Use a clean rag to remove loose dirt from around fuel cap and empty fuel tank. Do not damage fuel line while removing fuel filter from tank or line. 2. Pull the fuel filter from the tank. 3. Do not remove the wire coil clamp to remove the fuel filter.
SRM-266/S MAINTENANCE Spark Plug Level 2 Parts Required: Tune-Up Kit Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) otherwise severe engine damage may occur. 1. Remove spark plug and check for fouling, worn and rounded center electrode. 2. Clean the plug or replace with a new one. DO NOT sand blast to clean. Remaining sand will damage engine. 3. Adjust spark plug gap by bending outer electrode. 4. Tighten spark plug to 150-170 kgf • cm (130-150 in • lbf). 0.65 mm (0.026 in.
MAINTENANCE SRM-266/S Removal of cooling passage blockages or cleaning of cooling fins is considered “Normal Maintenance.” Any failure attributed to lack of maintenance is not warranted. 1. Remove spark plug lead. 2. Remove air cleaner cover. 3. Remove muffler cover (A). 4. Remove engine cover (B). A B DO NOT use a metal scraper to remove dirt from the cylinder fins. 5. Use brush to remove dirt from the cylinder fins. 6.
SRM-266/S MAINTENANCE Exhaust System Spark Arrestor Screen Level 2 Parts Required: Spark Arrestor Screen, Gasket 1. Remove spark plug lead. 2. Remove muffler cover (A). 3. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder. 4. Remove spark arrestor screen (D), gasket (C) and exhaust guide (B) from muffler body. 5. Clean carbon deposits from muffler components. Note: When cleaning carbon deposits, be careful not to damage the catalytic element inside muffler. 6.
MAINTENANCE SRM-266/S Exhaust Port Cleaning Level 2 Parts Required: 1. As needed; Heat Shield Remove spark plug lead from spark plug, and remove engine cover. 2. Place piston at top dead center. Remove muffler (A) and heat shield (B). 3. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port. B A Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port.
SRM-266/S MAINTENANCE Carburetor Adjustment Level 2 Engine Break-In New engines must be operated a minimum duration of two tanks of fuel break-in 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.
MAINTENANCE SRM-266/S Lubrication Level 1. Parts Required: Lithium Based Grease. Gear Case Gear cases without grease plug (A) do not require lubrication. 1. Clean all loose debris from gear case. 2. Remove plug (A) and check level of grease. 3. Add grease if necessary. DO NOT over-fill. A Drive Shaft (flex cable only) 1. Loosen screw (B) and remove locating screw (C). Pull gear case and shield from drive shaft housing. C B 2.
SRM-266/S MAINTENANCE Nylon Line Replacement Wear gloves or personal injury may result: ◆ Cutoff knife is sharp. ◆ Gearcase and surrounding area may be hot. 1. Cut one piece of line to recommended length. 2.0 mm (0.080 in.) diameter 6 m (20 ft.). 2.4 mm (0.095 in.) diameter 6 m (20 ft.). 2. Align arrows on top of knob with openings in eyelets. 3. Insert one end of trimmer line into an eyelet, and push line equal distance through trimmer head. 4.
MAINTENANCE SRM-266/S When the wear indicators located at the bottom of the Speed-Feed® head are worn smooth, or if holes appear, replacement of the cover or the entire Speed-Feed® head is required. Sharpening Metal Blades Several styles of metal blades are approved for use on the Brush Cutter. The 8-tooth blade can be sharpened during normal maintenance. The clearing blade and 80-tooth blade require professional service.
SRM-266/S 2. MAINTENANCE 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. 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.
TROUBLESHOOTING SRM-266/S TROUBLESHOOTING Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by grounding spark plug near cylinder plug hole, otherwise serious personal injury may result.
SRM-266/S TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Engine runs, but dies Check Status Remedy Air filter Normal wear Clean or replace Fuel filter Fuel filter dirty Contaminants or residue in fuel Replace filter or replace fuel Fuel vent Fuel vent plugged Contaminated fuel Clean or replace Spark plug Plug dirty or worn Normal wear Clean and adjust or replace Carburetor Improper adjustment Vibration Adjust Cooling system Cooling system dirty or plugged Extended op
STORAGE SRM-266/S STORAGE During operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result. Long Term Storage (Over 30 Days) Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage maintenance which includes the following: 1.
SRM-266/S SPECIFICATIONS SPECIFICATIONS MODEL SRM-266 Length w/o cutter head 1810 mm (71.3 in.) Width 250 mm (9.85 in.) Height 340 mm (13.4 in.) Weight (dry) w/o cutter head 5.56 kg (12.3 lb.) Engine Type Air cooled, two-stroke, single cylinder gasoline engine Bore 34.0 mm (1.34 in.) Stroke 28.0 mm (1.10 in.) Displacement 25.4cc (1.55 cu. in.
PRODUCT REGISTRATION SRM-266/S PRODUCT REGISTRATION Thank you for choosing ECHO Power Equipment Please go to http://www.echo-usa.com/Warranty/Register-Your-ECHO to register your new product on-line. It's FAST and EASY! NOTE: your information will never be sold or misused by ECHO, Inc. Registering your purchase enables us to contact you in the unlikely event of a service update or product recall, and verifies your ownership for warranty consideration.
SRM-266/S X7502027106 © 03/2019 ECHO Inc.
T41913001001 - T41913999999 (S) T43313001001 - T43313999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.
