Operator’s Manual SRM-225i 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. X7732274902 © 11/2018 ECHO Inc.
TABLE OF CONTENTS SRM-225I TABLE OF CONTENTS Introduction ................................................................................................. 4 Servicing Information .................................................................................. 4 Parts/Serial Number............................................................................. 4 Service ................................................................................................. 5 ECHO Consumer Product Support ........
SRM-225I TABLE OF CONTENTS Troubleshooting ........................................................................................ Storage ..................................................................................................... Long Term Storage (Over 30 Days) .................................................. Specifications ........................................................................................... Product Registration ........................................................
INTRODUCTION SRM-225I 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-225I 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-225I 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. The safety alert symbol accompanied by the word “CAUTION” calls attention to an act or condition which may lead to minor or moderate personal injury if not avoided.
SRM-225I SAFETY Symbol Description Symbol Description Safety/Alert Emergency Stop Hot Surface Fuel and Oil Mixture AVOID KICKOUT Keep Bystanders At Least 15 m (50 ft.
SAFETY SRM-225I 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. Proper clothing and safety gear must be worn when operating unit.
SRM-225I SAFETY 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. Hand Protection Wear sturdy, no-slip, rubber work gloves to improve your grip on the handles.
SAFETY SRM-225I 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. Schedule heavy work for early morning or late afternoon hours when temperatures are cooler. The components of this machine generate an electromagnetic field during operation, which may interfere with some pacemakers.
SRM-225I SAFETY Repetitive Stress Injuries (RSI) It is believed that overusing the muscles and tendons of the fingers, hands, arms, and shoulders may cause soreness, swelling, numbness, weakness, and extreme pain in those areas. Certain repetitive hand activities may put you at a high risk for developing a Repetitive Stress Injury (RSI). An extreme RSI condition is Carpal Tunnel Syndrome (CTS), which could occur when your wrist swells and squeezes a vital nerve that runs through the area.
SAFETY SRM-225I Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. Read Manuals • Provide all users of this equipment with literature for instructions on safe operation. Clear The Work Area • Always clear the work area of foreign objects, and check for any hidden hazards. spectators and fellow workers must be warned, and children and animals prevented from coming nearer than 50 ft.
SRM-225I ◆ ◆ ◆ ◆ ◆ SAFETY Check unit for loose or missing nuts, bolts, and screws. Tighten or replace as needed. Inspect shield for damage and ensure that shield is properly installed, and that that the cut-off knife is securely in place. Replace if either is damaged or missing. Check that the cutting attachment is firmly attached and in safe operating condition. Assure that throttle trigger, throttle trigger lockout, and stop switch all work properly.
SAFETY SRM-225I Periodically Check fuel system (fuel lines, vent, grommet, fuel tank, and fuel cap) for leaks especially if the unit is dropped. If damage or leaks are found, do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an authorized servicing dealer before using. 14 X7732274902 © 11/2018 ECHO Inc.
SRM-225I EMISSION CONTROL EMISSION CONTROL (EXHAUST & EVAPORATIVE) CARB And EPA Emissions Control Information The emission control system for the engine is EM (engine modification) and, if the second to last character of the Engine Family on the Emission Control Information label (sample below) is “B”, “C”, “K”, or “T”, the emission control system is EM and TWC (3way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions).
DESCRIPTION SRM-225I 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 may appear slightly different. 4 3 2 10 7 9 5 8 6 19 18 17 11 12 1 13 14 16 15 16 X7732274902 © 11/2018 ECHO Inc.
SRM-225I 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 7. Nylon Cutter Head 8. Cut-Off Knife 9. Debris Shield with Cut-Off Knife CONTENTS 10. Throttle Trigger 11. Spark Plug 12. Top Guard 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.
ASSEMBLY SRM-225I ASSEMBLY Support Handle Installation Note: Label shows minimum spacing for support handle location. 1. If necessary, position support handle for comfortable operation and securely tighten screws. OPERATION Moving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objects away from all openings.
SRM-225I OPERATION Operation With Blades Metal blades are very sharp and can cause severe injuries, even if engine is off and blades are not moving. Avoid contact with blades. Wear gloves to protect hands. Blade use demands specific brush cutter configuration. Operation without specified shield, barrier bar or U-handle, and harness can result in serious personal injury. Follow installation instructions.
OPERATION SRM-225I 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-225I OPERATION A trimmer-brushcutter with a metal blade can cause serious injuries if handled improperly. Always use extreme care when carrying or handling the equipment to avoid contact with the cutting edges of the blade. Use the optional blade cover (A) when unit is not in use. Keep blades in protective packaging until ready to install. Store blades safely after removal to prevent injury from accidental contact. Use blade protectors to protect blade teeth during unit transportation.
OPERATION SRM-225I Fuel Diesel fuels and 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 diesel or 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.
SRM-225I ◆ ◆ OPERATION AVOID repeated or prolonged skin contact AVOID inhaling oil mists or vapors. ECHO branded 2-stroke oils may be mixed at 50:1 ratio for application in all ECHO engines sold in the past regardless of ratio specified in those manuals. Handling Fuel Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal injury may result. ◆ Use an approved fuel container. Mark fuel containers as containing 2-stroke mixture fuel. ◆ DO NOT smoke near fuel.
OPERATION 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-225I Fuel to Oil Mix – 50:1 Ratio US Metric Gas Oil Gas Oil gal. fl.oz. L cc 1 2.6 5 100 2 5.2 10 200 5 13 25 500 Spilled fuel is a leading cause of hydrocarbon emissions.
SRM-225I OPERATION Starting Cold Engine The attachment will operate immediately when the engine starts, and could result in possible serious injury. Keep movable parts of the attachment away from objects that could become entangled or thrown, and surfaces that could cause loss of control. 1. Stop Switch Move stop switch (A) away from the STOP position. A 2. Choke Move choke lever (B) to COLD START position ( ). 3.
OPERATION 4. Recoil Starter Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grasp throttle handle with left hand and fully depress throttle trigger to wide open position. Gently pull recoil starter handle/ rope (D) until engine fires or 2 to 3 engine engagements. 5. SRM-225I D Choke After engine fires, or 2 to 3 engine engagements, move choke lever (B) to the Run position ( ).
SRM-225I 1. OPERATION Stop Switch Move stop switch (A) away from the STOP position. A 2. 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. C Note: Energy is stored in the starter spring each time the handle/rope is pulled. Generally two to six pulls, using light pulling force, will store enough energy to engage the starter and spin the engine. Do not pull the rope out to end stop. 3.
OPERATION 1. SRM-225I Throttle Release throttle and allow engine to return to idle before shutting off engine. 2. Stop Switch Move stop switch (A) to STOP position. A Applications Nylon line heads may be used for trimming, scything, edging, and scalping of grass and light weeds. Trimming Feed the spinning line into the material to be cut.
SRM-225I OPERATION Reaction Forces Push or Pull - Kickback or Kickout During normal use, operating a brushcutter with a circular metal blade can produce sudden strong reaction forces that are difficult to control. Strong reaction forces can cause a loss of balance or loss of control of the equipment, resulting in serious injury to operator and bystanders.
OPERATION SRM-225I • Using the correct blade for the cutting job • Using properly sharpened blades • Applying consistent, even force to the blade during the cut • Avoiding obstacles and ground hazards • Using extra care when cutting harder materials such as extremely dry brush, saplings, and small trees • Cutting from a stable, secure position Blade Cutting Problems Binding - Blades may bind in the cut if dull or forced.
SRM-225I 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-225I Maintenance Intervals MAINTENANCE PROCEDURE COMPONENT/SYSTEM SKILL LEVEL Daily or Before Use Air Filter Choke Shutter Inspect/Clean* 1 3 Fuel System Inspect 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/Clean
SRM-225I 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. Brush dirt from inside cover. 3. Replace filter if it is damaged, fuel soaked, very dirty, or the rubber sealing edges are deformed. • Lightly brush debris from filter.
MAINTENANCE SRM-225I Do not damage fuel line while removing fuel filter from tank. 3. Remove the filter from the line and install the new filter. Note: Federal EPA regulations require all model year 2012 and later gasoline powered engines produced for sale in the United States to be equipped with a special low permeation fuel supply hose between the carburetor and fuel tank.
SRM-225I MAINTENANCE Overheating and engine seizure can occur when: • Air intakes are blocked, preventing cooling air from reaching the cylinder. • Dust and grass build up on the outside of the cylinder. This build up insulates the engine and prevents the heat from leaving. 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 (A). 3.
MAINTENANCE 6. Remove grass and leaves from the grid between the recoil starter and fuel tank. 7. Assemble components in reverse order. SRM-225I Exhaust System Spark Arrestor Screen Level 2. Parts Required: Spark Arrestor Screen, Gasket 1. Remove spark plug lead and engine cover. 2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder. 3. Remove spark arrestor screen cover (C), gaskets (D), (E), and screen (F), from muffler body. 4.
SRM-225I 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). MAINTENANCE B 3. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port (C). A C C 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.
MAINTENANCE SRM-225I 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. High Altitude Operation This engine has been factory adjusted to maintain satisfactory starting and durability performance up to 330 m (1100 ft.) above sea level (ASL) (96.0 kPa).
SRM-225I MAINTENANCE Lubrication Level 1. Parts Required: Lithium Based Grease. Gear Housing 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. C A Drive Shaft B 1. Loosen screw (B) and remove locating screw (C). Pull gear case and shield from drive shaft housing. 2. Pull flexible cable from the drive shaft housing, wipe clean and re-coat with 15 ml (0.5 oz.) of grease. 3.
MAINTENANCE 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. SRM-225I A C B 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.
SRM-225I 4. MAINTENANCE Hold trimmer head while turning knob clockwise to wind line onto spool until about 13 cm (5 in.) of each line remains exposed. Trimmer head is now fully loaded and ready for operation. 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.
MAINTENANCE SRM-225I 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. 1. File each tooth at a 30° angle a specific number of times, e.g., four 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.
SRM-225I TROUBLESHOOTING 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.
TROUBLESHOOTING SRM-225I ENGINE PROBLEM TROUBLESHOOTING CHART Problem Engine runs, but dies or Engine does not accelerate properly Engine does not crank 44 Check Status Cause Remedy Air filter Air filter dirty 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
SRM-225I 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-225I SPECIFICATIONS MODEL SRM-225 Length without cutter head 1797 mm (70.7 in.) Width 256 mm (10.1 in.) Height 329 mm (13.0 in.) Weight (dry) without cutter head 4.9 kg (10.8 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 cm³ (1.29 in.
SRM-225I SPECIFICATIONS MODEL SRM-225 Handle Front (D-loop type with plastic grip) Rear (plastic grip with throttle trigger and switch) Idle Speed 3000 RPM Clutch Engagement Speed 4300 RPM Wide Open Throttle Speed (W.O.T.) 10,000 RPM X7732274902 © 11/2018 ECHO Inc.
PRODUCT REGISTRATION SRM-225I 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-225I X7732274902 © 11/2018 ECHO Inc.
NOTES SRM-225I NOTES 50 X7732274902 © 11/2018 ECHO Inc.
SRM-225I X7732274902 © 11/2018 ECHO Inc.
U01514001001 - U01514999999 U01614001001 - U01614999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.
