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SRM-3020 Grass
Trimmer / Brush
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.
X7502350002
© 2/20 ECHO Incorporated
Operator's
Manual
Cutter

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Table of Contents
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Summary of Contents for Echo SRM-3020

  • Page 1 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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 2: Table Of Contents

    Table of Contents........................ 2 Introduction ......................... 3 Servicing Information ......................3 Parts/Serial Number ....................3 Service........................4 ECHO Consumer Product Support................4 Product Registration ....................4 Additional Literature....................4 Safety ..........................4 Manual Safety Symbols and Important Information............ 4 ............................ 5 International Symbols ....................
  • Page 3: Introduction

    SERVICING INFORMATION Parts/Serial Number Genuine ECHO Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. For future reference write them in the space provided below.
  • Page 4: Service

    Register your ECHO equipment on-line at www.echo-usa.com or by filling out the product registration sheet included in this manual. Registering your product confirms warranty coverage and provides a direct link to ECHO if we find it necessary to contact you.
  • Page 5: International Symbols

    Warning, See Carburetor Adjustment - Operator’s Manual High Speed Mixture Wear Eye, Ear and Carburetor Adjustment - Head Protection Idle Speed Wear Hand and Foot Carburetor Adjustment - Protection Low Speed Mixture Safety/Alert Emergency Stop X7502350002 © 2/20 ECHO Incorporated...
  • Page 6 Choke Control “COLD Choke Control “RUN” START” Position (Choke Position (Choke Open) Closed) Keep Feet Away Rotating Cutting From Blade Attachment Keep Bystanders and Helpers Away 15 m (50 ft.) Thrown Objects Direction of Blade X7502350002 © 2/20 ECHO Incorporated...
  • Page 7: Personal Condition And Safety Equipment

    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 X7502350002 © 2/20 ECHO Incorporated...
  • Page 8 Hearing/Ear Protection ECHO recommends wearing personal protection whenever unit is used. Breathing Protection Operators who are sensitive to dust or other common airborne allergens may need to wear a dust mask to prevent inhaling these materials while operating unit.
  • Page 9 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 this machine by anyone who has a pacemaker.
  • Page 10 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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 11 Do not over reach. • Keep cutting attachment below waist. • Keep all body parts away from rotating cutting attachment Avoid Hot Surfaces • Keep exhaust area clear of flammable debris. Avoid contact during and immediately after operation. X7502350002 © 2/20 ECHO Incorporated...
  • Page 12: Equipment

    ECHO INC. Read and comply with all safety instructions. Do not attempt to modify this product. Serious injury can ◆...
  • Page 13: Emission Control (Exhaust & Evaporative)

    EM and TWC (3- way catalyst). The fuel tank/fuel line emission control system is EVAP (evaporative emissions). Evaporative emissions for California models are only applicable to fuel tanks and fuel feed lines. X7502350002 © 2/20 ECHO Incorporated...
  • Page 14 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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 15: 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. The safety decal is for example only. Your label may appear slightly different.
  • Page 16: Contents

    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. Power Head / Drive Shaft Assembly Operator’s Manual...
  • Page 17: Assembly

    Metal cutters can also create sparks if the cutter strikes rocks, metal, or other hard objects. Contact local fire authorities for laws or regulations regarding fire prevention requirements. X7502350002 © 2/20 ECHO Incorporated...
  • Page 18: Operation With Blades

    U-Handle ensures a higher safety factor. Do Not install blades on GT (Curved Shaft) model trimmers. • Use only ECHO approved parts. Failure to use the correct parts can cause the blade to fly off. Seriously injury to the operator and / or bystanders can occur.
  • Page 19: Blade Selection

    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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 20 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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 21: Fuel

    2-stroke and 2/4-stroke hybrid engines. 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-L- EGD (ISO/CD 13738) and J.A.S.O.
  • Page 22 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.
  • Page 23 • Empty the fuel tank prior to storing the unit. Return unused fuel to an approved fuel storage container. Stored fuel ages. Do not mix more fuel than you expect to use in 30 days, 90 days when a fuel stabilizer is added. X7502350002 © 2/20 ECHO Incorporated...
  • Page 24: Starting Cold Engine

    If a protective blade cover is used, ALWAYS remove blade cover before starting equipment. Stop Switch Move stop switch button (A) forward, away from the STOP position. X7502350002 © 2/20 ECHO Incorporated...
  • Page 25: 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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 26 Firmly grip throttle handle and throttle trigger lockout with left hand. Rapidly pull recoil starter handle/rope (D) until engine fires. Note: If engine does not start after five pulls, use Cold Start Procedure. X7502350002 © 2/20 ECHO Incorporated...
  • Page 27: Stopping Engine

    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 Nylon line heads may be used for trimming, scything, edging, and scalping of grass and light weeds.
  • Page 28: Operating Techniques

    The reactive force is in the opposite direction of blade rotation at the contact point, regardless of where the contact is being made. These types of reactive forces are also called “Blade Thrust. X7502350002 © 2/20 ECHO Incorporated...
  • Page 29: Blade Cutting Problems

    Inspect the blade for damage before proceeding. Sharpen teeth if dull, or replace blade if cracked, bent, missing teeth, or otherwise damaged. To prevent binding: • Keep blades sharp X7502350002 © 2/20 ECHO Incorporated...
  • Page 30: Maintenance

    The use of emission control components other than those specifically designed for this unit is a violation of federal law. Skill Levels Level 1 = Easy to do. Common tools may be required. Level 2 = Moderate difficulty. Some specialized tools may be required. X7502350002 © 2/20 ECHO Incorporated...
  • Page 31: Maintenance Intervals

    SRM-3020 MAINTENANCE Level 3 = See your dealer. Click HERE or go to http://www.echo-usa.com/products/maintenance-kit HERE https://www.shindaiwa-usa.com/you-can.aspx For information about maintenance kits. Maintenance Intervals MAINTENANCE SKILL COMPONENT/SYSTEM PROCEDURE LEVEL Daily or Before Use Air Filter Inspect/Clean * Choke Shutter Fuel System...
  • Page 32: Air Filter

    • Clean foam filter in water/ detergent solution and rinse with clean water. • Wrap the filter in a clean, dry cloth and squeeze (do not wring) dry. Allow to dry completely before reuse. Do not oil. Air Filter X7502350002 © 2/20 ECHO Incorporated...
  • Page 33: Fuel Filter

    Do not remove the wire coil clamp to remove the fuel filter. Pinch the fuel filter with the fingers on one hand and the fuel line with the other hand. Pull and twist slightly to separate. X7502350002 © 2/20 ECHO Incorporated...
  • Page 34: Spark Plug

    DO NOT sand blast to clean. Remaining sand will damage engine. 0.65 mm (0.026 in.) Adjust spark plug gap by bending outer electrode. Tighten spark plug to 102-153 kgf•cm (89-133 in•lbf). Cooling System Level 2. X7502350002 © 2/20 ECHO Incorporated...
  • Page 35 Remove spark plug lead. Remove muffler cover (A). Remove engine cover (B). DO NOT use a metal scraper to remove dirt from the cylinder fins. Use brush to remove dirt from the cylinder fins. X7502350002 © 2/20 ECHO Incorporated...
  • Page 36: Exhaust System

    Replace screen if it is cracked, plugged, or has holes burned through. Assemble components in reverse order. Exhaust Port Cleaning Level 2. Parts Required: As needed: Heat Shield X7502350002 © 2/20 ECHO Incorporated...
  • Page 37: Carburetor Adjustment

    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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 38: Lubrication

    Turn idle screw (A) clockwise to increase idle speed; counterclockwise to decrease idle speed. Lubrication Level 1. Parts Required: Lithium Based Grease. Gear Case Gear cases without grease plug (A) do not require lubrication. X7502350002 © 2/20 ECHO Incorporated...
  • Page 39: Nylon Line Head Disassembly Instructions

    Install the gear housing and shield assembly. Nylon Line Head Disassembly Instructions ® Note: For normal use, Speed Feed head disassembly is not necessary. However, if circumstances require disassembly, follow these instructions. X7502350002 © 2/20 ECHO Incorporated...
  • Page 40: Nylon Line Replacement

    2.4 mm (0.095 in.) diameter 7.6 m (25 ft.). Align arrows on top of knob with openings in eyelets. Insert one end of trimmer line into an eyelet, and push line equal distance through trimmer head. X7502350002 © 2/20 ECHO Incorporated...
  • Page 41 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. HDFH line head requires no maintenance. X7502350002 © 2/20 ECHO Incorporated...
  • Page 42: Sharpening Metal Blades

    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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 43: Troubleshooting

    - Inter- plug wire See your dealer lock switch Incorrect gap - Adjust to No spark Covered with 0.65mm (0.026 Spark at carbon - in.) plug Fouled with Clean or replace fuel - Plug plug defective X7502350002 © 2/20 ECHO Incorporated...
  • Page 44 See your dealer problem crank 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. X7502350002 © 2/20 ECHO Incorporated...
  • Page 45: 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. 10. Install the spark plug. Connect the spark plug lead to the spark plug. X7502350002 © 2/20 ECHO Incorporated...
  • Page 46: Specifications

    6.15 mm (0.25 in.) flexible shaft Gear Case Ratio 1.62:1 Rotating Direction Counterclockwise; viewed from top ® Speed Feed 450 LH nylon line head, line capacity Cutter Head 7.6 m (25 ft.) Handle Front – loop, rear handle X7502350002 © 2/20 ECHO Incorporated...
  • Page 47 SRM-3020 SPECIFICATIONS MODEL SRM-3020 Shoulder Harness Optional Idle Speed 2,900 RPM Clutch Engagement Speed 3,700 RPM Wide Open Throttle Speed 10,200 RPM X7502350002 © 2/20 ECHO Incorporated...
  • Page 48: Product Registration

    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.
  • Page 49 SRM-3020 PRODUCT REGISTRATION X7502350002 © 2/20 ECHO Incorporated...
  • Page 50 NOTES SRM-3020 NOTES X7502350002 © 2/20 ECHO Incorporated...
  • Page 51 SRM-3020 NOTES X7502350002 © 2/20 ECHO Incorporated...
  • Page 52 U33715001001 - U33715999999 U09715001001 - U09715999999 ECHO INCORPORATED 400 Oakwood Road Lake Zurich, IL 60047 www.echo-usa.com...

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