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Echo SRM-225U Operator's Manual

Grass trimmer / brush cutter
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x7722271404 / x772000164
GRASS TRIMMER /

BRUSH CUTTER

Operator's Manual
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.
Users of this equipment risk injury to themselves and others if the unit is used
improperly and/or safety precautions are not followed. ECHO provides an operator's
manual and a safety manual. Both must be read and understood for proper and safe
operation. Failure to do so could result in serious injury.
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.
X7722271407
© 4/2013 ECHO Inc.
SRM-225U
Burn Hazard

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Summary of Contents for Echo SRM-225U

  • Page 1: Brush Cutter

    Users of this equipment risk injury to themselves and others if the unit is used improperly and/or safety precautions are not followed. ECHO provides an operator’s manual and a safety manual. Both must be read and understood for proper and safe operation.

  • Page 2: Table Of Contents

    The Safety Manual........................4 Servicing Information ......................... 4 Parts/Serial Number........................4 Service ............................4 Echo Consumer Product Support ....................4 Warranty Registration ........................4 Additional or Replacement Manuals .................... 5 Safety..............................5 Manual Safety Symbols and Important Information ..............5 International Symbols ........................
  • Page 3 SRM-225U TABLE OF CONTENTS Storage ............................35 Long Term Storage (Over 30 Days)................... 35 Specifications........................... 36 Warranty Statements ........................37 Notes..............................39 X7722271407 © 4/2013 ECHO Inc.

  • Page 4: Introduction

    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. When presenting your unit for Warranty service/repairs, proof of purchase is required.

  • Page 5: Additional Or Replacement Manuals

    ECHO Inc., 400 Oakwood Road, Lake Zurich, IL 60047 (800-673-1558). Always check the ECHO Web Site for updated information. Safety Videos are available from your Echo dealer. A $5.00 shipping charge will be required for each video. SAFETY...

  • Page 6: International Symbols

    • 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. X7722271407 © 4/2013 ECHO Inc.
  • Page 7 ECHO does not recommend the use of ECHO products by anyone who has a pacemaker.
  • Page 8 • Spectators and fellow workers must be warned, and children and animals prevented from coming nearer than 15 m (50 ft.) while the unit is in use. Keep a Firm Grip • Hold both handles with thumbs and fingers encircling the grips. X7722271407 © 4/2013 ECHO Inc.

  • Page 9: Equipment

    Equipment Use only ECHO 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. Read and comply with all safety instructions listed in this manual and safety manual.

  • Page 10: Emission Control (Exhaust & Evaporative)

    The 50 or 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine emissions output meets applicable emissions regulations, provided that approved maintenance procedures are followed as listed in the Maintenance Section of this manual. X7722271407 © 4/2013 ECHO Inc.

  • Page 11: 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.
  • Page 12 22. PURGE BULB - Pumping purge bulb before starting engine draws fresh fuel from the fuel tank, purging air from the carburetor. Pump purge bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump purge bulb an additional 4 or 5 times. X7722271407 © 4/2013 ECHO Inc.

  • Page 13: 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.

  • Page 14: Assembly

    1. Make sure plastic debris shield (H) is properly aligned, and upper plate (A) is installed on splined PTO shaft (F). 2. Align hole in upper plate (A) with notch in gear housing (B), and insert locking tool (G) to prevent splined shaft from turning. X7722271407 © 4/2013 ECHO Inc.

  • Page 15: To Advance Trimmer Line

    You must install the U-Handle and all Blade Conversion parts shown in the following instructions before operating this unit with a metal blade, otherwise serious injury may result. Note: Model SRM-225U includes U-Handle, 8-tooth blade, and necessary blade conversion parts. Blades must be selected for type of cutting being performed. See “Blade Selection.”...
  • Page 16 (D). Turn nut counter-clockwise on PTO shaft to tighten. 3. Align hole in upper plate with notch in gear housing, and insert Locking Tool (G) to prevent splined shaft from turning. Arrow on gear housing points to notch. Tighten 10 mm nut securely. X7722271407 © 4/2013 ECHO Inc.

  • Page 17: U-Handle Installation

    Check throttle for freedom of movement and that wide open throttle / low idle extremes are adjusted properly. The throttle linkage must be adjusted by moving the adjustment nut (D). Consult with your Echo Dealer for correct adjustment procedure. 3. Tighten nut (E).

  • Page 18: Balance And Adjust Unit

    50-75 mm (2-3 in.) from the ground. 4. Tighten harness clamp screw. 5. Loosen upper U-Handle clamp screws (B), and position U-Handle for comfortable operation. 6. Tighten U-Handle clamp screws and 8 mm clamp bolt securely. X7722271407 © 4/2013 ECHO Inc.

  • Page 19: Operation

    • Arbor Diameter of Upper Blade Plate must match arbor diameter of blades. • New cotter pin required each time blade is installed. • Brush cutters over 16.5 lbs (7.5 kg) dry weight (weight w/o fuel) require a double shoulder harness. X7722271407 © 4/2013 ECHO Inc.

  • Page 20: Blade Selection

    During blade operation, the same fatigue reduction is achieved. Safety to the operator is also enhanced by reducing the possibility of blade contact with the operator's hands and feet by restricting trimmer movement. X7722271407 © 4/2013 ECHO Inc.

  • Page 21: Fuel

    Collar to disconnect the trimmer from the harness. 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.
  • Page 22 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. X7722271407 © 4/2013 ECHO Inc.

  • Page 23: Starting Cold Engine

    Note: If engine does not start with choke in “Run” position after 5 pulls, repeat instructions 2 - 5. 6. Throttle Trigger After engine warm-up, gradually depress throttle trigger to increase engine RPM to operating speed. X7722271407 © 4/2013 ECHO Inc.

  • Page 24: Starting Warm 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 trimmer again. X7722271407 © 4/2013 ECHO Inc.

  • Page 25: 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 26: 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. X7722271407 © 4/2013 ECHO Inc.

  • Page 27: 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. X7722271407 © 4/2013 ECHO Inc.

  • Page 28: Exhaust System

    4. Clean carbon deposits from muffler components. Note: When cleaning carbon deposit, be careful not to damage the catalytic element inside muffler. 5. Replace screen if it is cracked, plugged, or has holes burned through. 6. Assemble components in reverse order. X7722271407 © 4/2013 ECHO Inc.

  • Page 29: Carburetor Adjustment

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

  • Page 30: Lubrication

    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 31: Nylon Line Head Disassembly Instructions

    4. Hold trimmer head while turning knob clockwise to wind line onto spool until about 5” (13 cm) of each line remains exposed. Trimmer head is now fully loaded and ready for operation. X7722271407 © 4/2013 ECHO Inc.

  • Page 32: Sharpening Metal Blades

    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.
  • Page 33 SRM-225U 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. X7722271407 © 4/2013 ECHO Inc.

  • Page 34: 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 35: Storage

    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. 8. Install the spark plug (do not connect ignition cable). X7722271407 © 4/2013 ECHO Inc.

  • Page 36: Specifications

    Speed Feed® Nylon line head (2-line) with .095 Crossfire Line capacity 6m (20 ft.) Handle U-Handle Shoulder Harness Standard Idle Speed 2,750 RPM Clutch Engagement Speed 3,800 RPM Wide Open Throttle Speed (W.O.T.) 8,150 RPM X7722271407 © 4/2013 ECHO Inc.

  • Page 37: Warranty Statements

    PRODUCT SOLD IN USA AND CANADA BEGINNING 01/01/2010 ECHO'S RESPONSIBILITY THIS LIMITED WARRANTY IS ONLY APPLICABLE TO ECHO PRODUCTS SOLD BY AUTHORIZED ECHO DEALERS. IT IS EXTENDED TO THE ORIGINAL PURCHASER ONLY, AND IS NOT TRANSFERABLE TO SUBSEQUENT OWNERS EXCEPT FOR EMISSION RELATED PARTS. 1-800-432-ECHO.
  • Page 38 PURCHASED REPAIR PARTS, SHORT BLOCKS AND ACCESSORIES ATTENTION TWO-STROKE ENGINE POWER PRODUCT OWNERS (&+2 3RZHU %OHQGŒ 7ZR6WURNH 2LO THIS WARRANTY DOES NOT COVER DAMAGE CAUSED BY: PD[LPXP ® DISCLAIMER OF IMPLIED WARRANTIES MERCHANTABILITY 99922201032 11/18/2011 X7722271407 © 4/2013 ECHO Inc.

  • Page 39: Notes

    SRM-225U NOTES NOTES X7722271407 © 4/2013 ECHO Inc.
  • Page 40 S79111001030/S79111999999 ECHO, INCORPORATED S79012004906/S79012999999 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

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