x7722271404 / x772000164 SRM-225 GRASS TRIMMER / BRUSH CUTTER Operator’s Manual Burn Hazard 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. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
TABLE OF CONTENTS SRM-225 TABLE OF CONTENTS Table of Contents............................................................................................................................................... 2 Introduction ........................................................................................................................................................ 3 The Operator’s Manual..................................................................................................................
SRM-225 INTRODUCTION INTRODUCTION Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job dependability. Read and understand this manual and the SAFETY MANUAL. You will find both easy to use and full of helpful operating tips and SAFETY messages. The Operator’s Manual Keep it in a safe place for future reference. Contains specifications and information for safety, operation, maintenance, storage and assembly specific to this product.
SAFETY Additional or Replacement Manuals Replacement Operator, Safety Manuals, and Parts Catalogs are available from your ECHO dealer or at www.echo-usa.com or by contacting ECHO Inc., 400 Oakwood Road, Lake Zurich, IL 60047 (800-673-1558). Always check the ECHO Web Site for updated information. SRM-225 For more information scan this QR code. Safety Videos are available from your Echo dealer. A $5.00 shipping charge will be required for each video.
SRM-225 SAFETY International Symbols Symbol Description Symbol Description Symbol Description Symbol Description Warning, See Operator’s Manual Carburetor Adjustment High speed mixture DO NOT allow flames or sparks near fuel Ignition ON / OFF Wear eye, ear and head protection Carburetor Adjustment Idle speed DO NOT smoke near fuel Primer Bulb Wear hand and foot protection Carburetor Adjustment Low speed mixture Choke Control “Run” Position (Choke Open) Choke Control “Cold Start” Positio
SAFETY SRM-225 Personal Condition and Safety Equipment Users of this product risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. Proper clothing and safety gear must be worn when operating unit. 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.
SRM-225 SAFETY The ignition components of this machine generate an electromagnetic field during operation which may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with pacemakers should consult with their physician and the pacemaker manufacturer before operating this machine. In the absence of such information, ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.
SAFETY SRM-225 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-225 EMISSION CONTROL (EXHAUST & EVAPORATIVE) • Check that handle and harness (if included) are adjusted for safe, comfortable operation. See Assembly Section for proper adjustment. 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.
DESCRIPTION SRM-225 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. See PARTS ORDERING instructions for specific information. 11 19 12 13 18 14 17 15 16 6 5 4 7 8 3 1 2 9 10 Shaft Label 10 Hot Label X7722271109 © 2/2014 ECHO Inc.
SRM-225 DESCRIPTION 1. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter. 2. THROTTLE HANDLE - FOR RIGHT HAND - Contains Stop Switch, Throttle Lockout, and Throttle Trigger. 3. THROTTLE TRIGGER LOCKOUT - This lever must be held during starting. Operation of the throttle trigger is prevented unless throttle trigger lockout lever is engaged. 4. STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Handle. Move switch FORWARD to RUN, BACK to STOP. 5.
CONTENTS SRM-225 CONTENTS The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, shield installation and other assembly may be necessary. After opening the carton, check for damage. Immediately notify your retailer or ECHO Dealer of damaged or missing parts. Use the contents list to check for missing parts. *Some Echo units may be factory pre-assembled.
SRM-225 ASSEMBLY ASSEMBLY Plastic Shield Installation (Nylon line operation) Parts Required: Plastic Debris Shield, Shield Plate, three (3) 5 x 16 mm screws. The plastic shield is for use with the Nylon Line Head only. Install Metal Shield when using plastic or metal blades, or serious injury may result. 1. Remove plastic threaded shaft sleeve and adapter plate (C) from PTO shaft (A). 2. Place the shield on the bottom of the bearing housing flange. 3. Place shield plate (B) on shield, align holes.
ASSEMBLY SRM-225 To Advance Trimmer Line See Maintenance Section for nylon line replacement. Note: To advance trimmer line, tap trimmer head against the ground while the head is turning at normal operating speed. Remove Nylon Line Head D Note: Do not disassemble nylon line head. 1. Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool (D). 2. Remove line head (E) by turning it clockwise until head is completely off of shaft. E 3. Remove locking tool (D).
SRM-225 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-225 Note: The Barrier Bar is used to restrict rearward movement of the unit. The Barrier Bar is NOT A HANDLE and should not be gripped when using or carrying the unit. Blade Selection The type of Blade used MUST be matched to the type and size of material cut. An improper or dull blade can cause serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick-out and injury to yourself and bystanders.
SRM-225 OPERATION For more information scan this QR code. Fuel Alternative fuels, such as E-15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting ECHO requirements are NOT approved for use in ECHO 2-stroke gasoline engines. Use of alternative fuels may cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including, but not limited to, improper clutch engagement.
OPERATION SRM-225 • Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired. • Move at least 3m (10 ft.) from refueling location before starting the engine. Mixing Instructions 1. Fill an approved fuel container with half of the required amount of gasoline. 2. Add the proper amount of 2-stroke oil to gasoline. 3. Close container and shake to mix oil with gasoline. 4. Add remaining gasoline, close fuel container, and remix.
SRM-225 Move choke lever (B) to Cold Start Position ( OPERATION ). 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. B 4. 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.
OPERATION SRM-225 Move stop switch button (A) forward away from the STOP position. 2. Purge Bulb Pump purge bulb (C) until fuel is visible in the “Clear” fuel return line. Pump bulb an additional 4 or 5 times. C 3. Recoil Starter Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grip throttle handle and throttle trigger lockout with left hand. Rapidly pull recoil starter handle/rope (D) until engine fires.
SRM-225 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. Your ECHO unit is designed to provide many hours of trouble free service.
MAINTENANCE SRM-225 (2) Apply POWER BLENDXTM grease every 50 hours of use. (3) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity. * Replacement is recommended based on the finding of damage or wear during inspection. Air Filter Level 1. Parts Required: REPOWERTM AIR & FUEL FILTER 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.
SRM-225 MAINTENANCE Spark Plug Level 2. Parts Required: REPOWERTM Tune-Up Kit Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) otherwise severe engine damage may occur. .65 mm (.026 in.) 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).
MAINTENANCE SRM-225 2. Remove air cleaner cover (A). 3. Remove engine cover (B). B A DO NOT use a metal scraper to remove dirt from the cylinder fins. 4. Use brush to remove dirt from the cylinder fins. 5. Remove ignition wires from clip for cleaning. 6. Remove grass and leaves from the grid between the recoil starter and fuel tank. 7. Assemble components in reverse order. Exhaust System Spark Arrestor Screen Level 2. Parts Required: F Spark Arrestor Screen, Gasket 1. Remove engine cover (B). 2.
SRM-225 MAINTENANCE Exhaust Port Cleaning B A Level 2. Parts Required: As needed: Heat Shield 1. 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. Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port.
MAINTENANCE SRM-225 Note: Every unit is run at the factory and the carburetor is set in compliance with emission regulations. Carburetor adjustments, other than idle speed, must be performed by an authorized ECHO dealer. 1. Check idle speed and reset if necessary. If a tachometer is available, idle speed screw (A) should be set to the specifications found on “Specifications” page of this manual. Turn idle screw (A) clockwise to increase idle speed; counter clockwise to decrease idle speed.
SRM-225 MAINTENANCE Nylon Line Head Disassembly Instructions A Note: For normal use, Speed Feed® head disassembly is not necessary. However, if circumstances require disassembly, follow these instructions. B 1. Press top of locking tabs (A) on both sides of Speed Feed® head to release cover (B) from eyelet carrier(C). 2. Remove cover from eyelet carrier. Nylon Line Replacement C For more information scan this QR code. Wear Gloves or personal injury may result: • Cutoff knife is sharp.
MAINTENANCE SRM-225 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. Wear Indicators 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 maintenance. The clearing blade and 80 tooth blade require professional service.
SRM-225 MAINTENANCE 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. X7722271109 © 2/2014 ECHO Inc.
TROUBLESHOOTING SRM-225 TROUBLESHOOTING ENGINE PROBLEM TROUBLESHOOTING CHART Problem Check Remedy Fuel strainer clogged Fuel line clogged Carburetor Clean or replace Clean or replace See your Echo dealer No fuel at cylinder Carburetor See your Echo dealer Muffler wet with fuel Fuel Mixture too rich Open choke Clean/replace air filter Adjust carburetor See your Echo dealer No spark Stop switch off Electrical problem Interlock switch Turn switch to ON See your Echo dealer See your
SRM-225 STORAGE 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.
SPECIFICATIONS SRM-225 SPECIFICATIONS MODEL SRM-225 Length w/o cutter head 1793 mm (70.6 in.) Width 251 mm (9.88 in.) Height 328 mm (12.9 in.) Weight (dry) w/o cutter head 5.5 kg (12.1 lb.) Engine Type Air cooled, two-stroke, single cylinder gasoline engine Bore 32.2 mm (1.27 in.) Stroke 26.0 mm (1.02 in.) Displacement 21.2 cc (1.29 cu. in.
SRM-225 WARRANTY STATEMENTS WARRANTY STATEMENTS ECHO LIMITED WARRANTY STATEMENT FOR PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO'S RESPONSIBILITY ECHO Incorporated’s Limited Warranty, provides to the original purchaser that this ECHO product is free from defects in material and workmanship.
WARRANTY STATEMENTS SRM-225 PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES & GJ* * & ^J* ATTENTION TWO-STROKE ENGINE POWER PRODUCT OWNERS This ECHO two-stroke engine power product is a quality-engineered unit which has been manufactured to exact tolerances to provide superior performance.
SRM-225 NOTES NOTES X7722271109 © 2/2014 ECHO Inc.
ECHO, INCORPORATED 36 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.
