Echo SRM-225 Operator's Manual
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Echo SRM-225 Operator's Manual

Straight shaft trimmer
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Operator's Manual
Straight Shaft Trimmer
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.
Read and understand all provided literature before use. Failure to do so could result
in serious injury.
X7732278503
© 01/22 ECHO Incorporated
SRM-225
Burn Hazard

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  • Page 1 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 2: Table Of Contents

    Exhaust System ......................... 26 Carburetor Adjustment....................... 27 Lubrication ..........................28 Nylon Line Head Disassembly Instructions................29 Nylon Line Replacement......................30 Troubleshooting ..........................32 Storage ............................33 Long Term Storage (Over 30 Days)................... 33 Specifications........................... 34 Specifications........................... 35 X7732278503 © 01/22 ECHO Incorporated...

  • Page 3: Introduction

    Your bill of sale must be provided to demonstrate proof of warranty. 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, visit echo-latinamerica.com.

  • Page 4: Safety

    Note: This enclosed message provides tips for use, care and maintenance of the unit. CIRCLE AND SLASH SYMBOL This symbol means the specific action shown is prohibited. Ignoring these prohibitions can result in serious or fatal injury. X7732278503 © 01/22 ECHO Incorporated...

  • Page 5: International Symbols

    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. X7732278503 © 01/22 ECHO Incorporated...
  • Page 6 ECHO does not recommend the use of this machine by anyone who has a pacemaker.
  • Page 7 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 8: Equipment

    Equipment Use only ECHO attachments. Serious injury may result from the use of a non-approved attachment combination. ECHO, Incorporated will not be responsible for the failure of cutting devices, attachments or accessories which have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this manual and safety manual.
  • Page 9 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 10: 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. PELIGRO...

  • Page 11: Contents

    The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions, some 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.

  • Page 12: Assembly

    • Gearcase and surrounding area may be hot. 1. Be sure adapter plate (A) remains on PTO shaft (B). 2. Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool (C). X7732278503 © 01/22 ECHO Incorporated...

  • Page 13: To Advance Trimmer Line

    2. Remove line head (B) by turning it clockwise until head is completely off of shaft. 3. Remove locking tool (A). 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 14: Operation

    ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD certified oil will void the two-stroke engine warranty. 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.
  • Page 15 Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30) days, ninety (90) days when a fuel stabilizer is added. Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use. X7732278503 © 01/22 ECHO Incorporated...

  • Page 16: Starting Cold Engine

    Firmly grasp throttle handle and throttle trigger lockout with left hand and fully depress throttle trigger to wide open position. Rapidly pull recoil starter handle/rope (D) until engine fires (or maximum five pulls). X7732278503 © 01/22 ECHO Incorporated...

  • Page 17: Starting Warm Engine

    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.

  • Page 18: Stopping Engine

    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. Applications Do not install blades on GT (Curved Shaft) trimmers.

  • Page 19: Operating Techniques - Metal Or Plastic Blade

    • Width of cutting swath depends on arc. Use a larger arc for a wider swath, or a smaller arc for a narrow swath. Suggested cutting width is about 1.5 m (4.9 ft). • When scything large brush up to 0.5" diameter from right to left, avoid cutting with highlighted section. X7732278503 © 01/22 ECHO Incorporated...

  • Page 20: Reaction Forces

    (to the left or right of the blade), instead of forward or back toward the operator. In most cases, Push, Pull, and Kickout can be reduced or eliminated by: • Using the correct blade for the cutting job • Using properly sharpened blades X7732278503 © 01/22 ECHO Incorporated...

  • Page 21: Blade Cutting Problems

    To prevent binding: • Keep blades sharp • Avoid excessive pressure during cuts • Don’t exceed cutting capacity of blade • Don’t use blades with damaged or missing cutting teeth • Don’t rock blades in cut X7732278503 © 01/22 ECHO Incorporated...

  • Page 22: Maintenance

    If you are unsure or are not equipped with the necessary tools, you may want to take your unit to an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the ECHO Dealer do it, each maintenance task has been graded.

  • Page 23: Air Filter

    When servicing model year 2012 and later equipment, only fuel supply hoses certified by EPA can be used to replace the original equipment supply hose. Fines up to $37,500 may be enforced for using an un-certified replacement part. X7732278503 © 01/22 ECHO Incorporated...

  • Page 24: Spark Plug

    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. Remove engine cover (B). X7732278503 © 01/22 ECHO Incorporated...
  • Page 25 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 26: Exhaust System

    4. Inspect heat shield, and replace if damaged. 5. Install heat shield and muffler. 6. Tighten muffler mounting bolts (or nuts) to 90 - 110 kgf•cm (80 - 95 lbf•in). 7. Install engine cover and attach spark plug lead. X7732278503 © 01/22 ECHO Incorporated...

  • Page 27: Carburetor Adjustment

    This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 330 m (1,100 ft.) above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 330 m (1,100 ft.) ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.

  • Page 28: Lubrication

    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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 29: Nylon Line Head Disassembly Instructions

    However, if circumstances require disassembly, follow these instructions. 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 30: Nylon Line Replacement

    2.4 mm (.095) diam. – 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. X7732278503 © 01/22 ECHO Incorporated...
  • Page 31 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. X7732278503 © 01/22 ECHO Incorporated...

  • Page 32: Troubleshooting

    Fuel strainer clogged Clean or replace Fuel at carburetor No fuel at carburetor Fuel line clogged Clean or replace Carburetor See your ECHO dealer No fuel at cylinder Carburetor See your ECHO dealer OPEN choke Fuel at cylinder Clean/replace air filter...

  • Page 33: Storage

    9. Observe the piston location through the spark plug hole. Pull the recoil handle slowly until the piston reaches the top of its travel and leave it there. 10. Install the spark plug. Connect the spark plug lead to the spark plug. X7732278503 © 01/22 ECHO Incorporated...

  • Page 34: Specifications

    Front - D-loop type with plastic grip Handle Rear - Plastic grip with throttle trigger and switch Shoulder Harness Optional Idle Speed 3,000 RPM Clutch Engagement Speed 4,300 RPM Wide Open Throttle Speed (W.O.T.) 10,000 RPM X7732278503 © 01/22 ECHO Incorporated...

  • Page 35: Specifications

    Front - D-loop type with plastic grip Handle Rear - Plastic grip with throttle trigger and switch Shoulder Harness Optional Idle Speed 3,000 RPM Clutch Engagement Speed 4,300 RPM Wide Open Throttle Speed (W.O.T.) 10,000 RPM X7732278503 © 01/22 ECHO Incorporated...
  • Page 36 U34429001001 - U34429999999 U58529001001 - U58529999999 U69629001001 - U69629999999 ECHO, INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

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