ECHO SRM-210SB Grass Trimmer Brush Cutter User Manual

ECHO SRM-210SB Grass Trimmer Brush Cutter

Specifications

• Model : SRM – 210SB
• Serial Number : 05016332 – 05999999

Product Information

Welcome to the ECHO family. This ECHO Grass Trimmer/Brush Cutter was designed and manufactured to provide long life and on-the-job dependability. It is equipped with safety features and comes with multiple manuals for proper operation and maintenance.

The Operator’s Manual
The Operator’s Manual contains specifications and information for operation, starting, stopping, maintenance, storage, and assembly specific to this product. It is important to read and  understand this manual before operating the Grass Trimmer/Brush Cutter. Keep it in a safe place for future reference.

The Attachment Operator’s Manual
The Attachment Operator’s Manual contains specifications and information for operation and maintenance specific to the attachment. It is important to read and understand this manual before using any attachments with the Grass Trimmer/Brush Cutter. Keep it in a safe place for future reference.

The Safety Manual
The Safety Manual explains possible hazards and provides measures to ensure safe operation. If available for the attachment, it is important to read and understand this manual as well. Safety should always be a top priority when using the Grass Trimmer/Brush Cutter.

Product Usage Instructions

Safety Precautions
Before operating the Grass Trimmer/Brush Cutter, it is important to familiarize yourself with the safety precautions mentioned in the Safety Manual. Some key safety precautions include

• Wear appropriate protective gear, such as safety goggles, gloves, and ear protection.
• Ensure the work area is clear of obstacles and bystanders.
• Do not operate the Grass Trimmer/Brush Cutter in wet or slippery conditions.
• Keep a safe distance from the cutting area and maintain a firm grip on the unit.

Starting the Grass Trimmer/Brush Cutter
Follow these steps to start the Grass Trimmer/Brush Cutter

1. Ensure the unit is on a flat surface and the cutting head is clear of any obstacles.
2. Check the fuel level and add fuel if necessary, following the instructions in the Operator’s Manual.
3. Prime the engine by pressing the primer bulb a few times until fuel is visible in the bulb.
4. Set the choke lever to the “Start” position.
5. Pull the starter rope firmly until the engine starts. Once started, move the choke lever to the “Run” position.

Operating the Grass Trimmer/Brush Cutter
To operate the Grass Trimmer/Brush Cutter

1. Hold the unit firmly with both hands, ensuring a comfortable and balanced grip.
2. Engage the throttle control to increase or decrease the cutting speed as needed.
3. Move the cutting head along the desired area, maintaining a steady and controlled motion.
4. Avoid contact with hard objects or surfaces that may damage the cutting head or cause kickback.

Stopping and Maintenance
When you have finished using the Grass Trimmer/Brush Cutter, follow these steps to stop and perform maintenance

1. Release the throttle control and allow the engine to idle for a few seconds.
2. Turn off the engine by switching the ignition switch to the “Off” position.
3. Inspect the cutting head for any debris or damage, and clean or replace it if necessary.
4. Refer to the Operator’s Manual for detailed maintenance instructions, including cleaning, fueling, and storage.

FAQ

Q: Where can I order replacement safety decals?
A: If any safety decals on your unit are illegible or missing, you can order new ones from your ECHO dealer. Refer to the PARTS ORDERING instructions in the manuals for specific information.

Grass Trimmer/Brush Cutter
Operator’s Manual
MODEL
SRM – 210SB
Serial Number 05016332 – 05999999

WARNING DANGER
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.

WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

WARNING DANGER

Read rules for safe operation and instructions carefully. ECHO provides an Operator’s Manual with this unit and a separate Operator’s Manual and Safety Manual (if available) with the attachment. All manuals must be read and under- stood for proper and safe operation. Failure to do so could result in serious injury.

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 found in the same package. You will find both easy to use and full of helpful operating tips and SAFETY messages.

THE OPERATOR’S MANUAL
Read and understand this manual before operation. Keep it in a safe place for future reference. It contains specifications and information for operation, starting, stopping, maintenance, storage, and assembly specific to this product.

THE ATTACHMENT OPERATOR’S MANUAL
Read and understand this manual before operation. Keep it in a safe place for future reference. It contains specifications and information for operation and maintenance specific to the attachment.

THE SAFETY MANUAL
(If available for attachment)
Explains possible hazards and what measures you should take to insure safe operation.

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.
Copyright© 2003 By Echo, Incorporated All Rights Reserved.

MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION

Throughout this manual and on the product itself, you will find safety alerts and helpful, information messages preceded by symbols or key words. The following is an explanation of those symbols and key words and what they mean to you.

This symbol accompanied by the words WARNING and DANGER calls attention to an act or condition that can lead to serious personal injury to operator and bystanders.

The circle with the slash symbol means whatever is shown within the circle is prohibited.

IMPORTANT The enclosed message provides information necessary for the protection of the unit.
NOTE This enclosed message provides tips for use, care and maintenance of the unit.

SAFETY
DECALS
Locate these safety decals on your unit. Make sure the decals are legible and that you understand and follow the instructions on them. If a decal cannot be read, a new one can be ordered from your ECHO dealer. See PARTS ORDERING instructions for specific information.
Shaft Decal
Spanish Decal

ADVERTENCIA PELIGRO
ESTA UNIDAD PUEDE SER PELIGROSA Y PRODUCIR LESIONES PERSONALES GRAVES SI NO SE USA EN FORMA ADECUADA. PARA REDUCIR EL RIESGO DE LESIONARSE, LOS OPERADORES, LOS AYUDANTES Y LOS ESPECTADORES DEBEN LEER Y COMPRENDER EL MANUAL DEL OPERADOR Y LOS MANUALES DE SEGURIDAD QUE SE ENTREGAN
89022809560 ESCRITOS EN ESPAÑOL.

Hot Decal (near muffler)

WARNING DANGER This unit can be dangerous and cause serious injury if improperly used. to reduce injury risk to operator, helpers and bystanders, read and understand the Operator’s and Safety Manuals, which are provided in Spanish.

Shaft Decal
WARNING DANGER

• This unit can be dangerous and cause serious injury if improperly used. To reduce injury risk to operator, helpers and bystanders, read and understand the Operator’s and Safety manuals.
• Blindness can occur from objects that are thrown or ricocheted even with shield in place. Operators, helpers and bystanders must wear ANSI Z87.1 approved eye protection.
• Always wear hearing protection when operating unit.
• Prevent accidental contact with unit and any cutting attachment. Maintain a 15M (50 ft.) radius, DANGER ZONE surrounding the operator. ONLY the operator, dressed in proper protective clothing should be in the DANGER ZONE.
• Beware of KICKOUT (blade thrust) when using blades. Special precautions are necessary for blade operation, see your Operator’s and Safety Manuals. ONLY install ECHO approved blades on Brush Cutters (SRM) models equipped with proper blade shield,
• U- handles, harness, blade collar, nut and cotter pin.
• Blade/Cutting attachment does not stop immediately after releasing throttle. Keep hands and feet clear of blade/cutting attachment unless engine is shut off and cutting attachment is not moving.
• INSPECT BLADES BEFORE USE.
• DO NOT USE DAMAGED, CRACKED, BENT, DULL OR IMPROPERLY SHARPENED BLADES.
• Do not remove shields, modify the unit or install attachments or parts not approved by ECHO. Approved attachment information and replacement Operator’s and Safety Manuals are available from your ECHO dealer or by writing: ECHO, INCORPORATED, 400 OAKWOOD RD., LAKE ZURICH, IL 60047.

INTERNATIONAL SYMBOLS

SAFETY INSTRUCTIONS

PERSONAL CONDITION AND SAFETY EQUIPMENT

WARNING DANGER
Trimmer/Brush Cutter users risk injury to themselves and others if the trimmer/brush cutter is used improperly or safety precautions are not followed. Proper clothing and safety gear must be worn when operating a trimmer/brush cutter.

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.

Eye Protection
Eye protection that meet ANSI Z87.1 or CE requirements must be worn whenever you operate the unit.
Hand Protection
Wear no-slip, heavy-duty work gloves to improve your grip on the handles. Gloves also reduce the transmission of machine vibration to your hands.
Hearing Protection
Wear hearing protection. ECHO recommends wearing hearing protection whenever unit is used.

Proper Clothing
Wear snug fitting, durable clothing

• Pants should have long legs, shirts with long sleeves.
• DO NOT WEAR SHORTS,
• DO NOT WEAR TIES, SCARFS, JEWELRY.

Wear protective hair covering to contain long hair.

Wear sturdy work shoes with nonskid soles

• DO NOT WEAR OPEN TOED SHOES,
• DO NOT OPERATE UNIT BAREFOOTED.

Hot Humid Weather
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.

EXTENDED OPERATION/EXTREME CONDITIONS

Vibration and Cold
It is believed that a condition called Raynaud’s Phenomenon, which affects the fingers of certain individuals, may be brought about by exposure to vibration and cold. Exposure to vibration and cold may cause tingling and burning sensations, followed by loss of color and numbness in the fingers. The following precautions are strongly recommended, because the minimum exposure which might trigger the ailment is unknown.

• Keep your body warm, especially the head, neck, feet, ankles, hands, and wrists.
• Maintain good blood circulation by performing vigorous arm exercises during frequent work breaks, and also by not smoking.
• Limit the hours of operation. Try to fill each day with jobs where operating the trimmer or other hand-held power equipment is not required.
• If you experience discomfort, redness, and swelling of the fingers followed by whitening and loss of feeling, consult your physician before further exposing yourself to cold and vibration.

Repetitive Stress Injuries
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. Some believe that prolonged exposure to vibration may contribute to CTS. CTS can cause severe pain for months or even years.

To reduce the risk of RSI/CTS, do the following

• Avoid using your wrist in a bent, extended, or twisted position. Instead, try to maintain a straight wrist position. Also, when grasp-ing, use your whole hand, not just the thumb and index finger.
• Take periodic breaks to minimize repetition and rest your hands.
• Reduce the speed and force with which you do the repetitive movement.
• Do exercises to strengthen the hand and arm muscles.
• Immediately stop using all power equipment and consult a doctor if you feel tingling, numbness, or pain in the fingers, hands, wrists, or arms. The sooner RSI/CTS is diagnosed, the more likely permanent nerve and muscle damage can be prevented.

EQUIPMENT

WARNING DANGER
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.

• Check unit for loose/missing nuts, bolts, and screws. Tighten and/or replace as needed.
• Inspect fuel lines, tank, and area around carburetor for fuel leaks. DO NOT operate unit if leaks are found.
• Inspect shield for damage and ensure 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.
• Check that front loop handle and shoulder strap/ or shoulder/ waist harness are adjusted for safe, comfortable operation. See Assembly Section for proper adjustment.

SAFE OPERATION

WARNING DANGER
Do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death.

• Read the Manuals
  Provide all users of this equipment with the Operator’s Manual and Safety Manual for instructions on Safe Operation.

• Clear the Work Area
  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 the front and rear handles with both hands, with thumbs and fingers encircling the handles.

• Keep a Solid Stance
  Maintain footing and balance at all times. Do not stand on slippery, uneven or unstable surfaces. Do not work in odd positions or on ladders. Do not over reach.

• Avoid Hot Surfaces
  Keep exhaust area clear of flammable debris. Avoid contact during and immediately after operation.

EMISSION CONTROL
EPA Phase 2
The emission control system for this engine is (Engine Modifi-cation).
Emission Control Label (located on Engine) (EXAMPLE ONLY, information on label varies by FAMILY).

IMPORTANT ENGINE INFORMATION
ENGINE FAMILY: 3EHXS.0214EA DISPLACEMENT: 21.2 CC EMISSION COMPLIANCE PERIOD: 300 HOURS
THIS ENGINE MEETS U.S. EPA PH2 EMISSION REGULA-TIONS FOR SMALL NONROAD ENGINE. REFER TO OWNER’S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.

PRODUCT EMISSION DURABILITY
The 300 hour emission durability 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.

DESCRIPTION

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.

CONTENTS

• 1 – Power Head w/Upper Drive Shaft Assembly ____ 1 – Lower Drive Shaft Assembly
• 1 – Operator’s Manual
• 1 – Safety Manual
• 1 – Warranty Registration Card
• 1 – Limited Warranty Statement
• 1 – Plastic shield
• 1 – Shield plate
• 3 – 5 mm x 16 mm screws (shield mounting) ____ 1 – T-Wrench
• 1 – Locking tool
• 1 – Nylon Trimmer Head
• 1 – Safety Glasses
• 1 – Echo Power Blend TM 2-stroke oil sample

1. POWER HEAD – Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.

2. GRIP – Rear (right hand) handle.

3. THROTTLE TRIGGER LOCKOUT – 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 Trigger Housing. Move switch FORWARD to RUN, BACK to STOP.

5. FRONT HANDLE – The front (loop) handle must be assembled to the Upper Drive Shaft Assembly (some models) and must be positioned for proper cutting attitude and operator comfort.

6. UPPER DRIVE SHAFT ASSEMBLY – Includes the Rear (Right Hand) Grip Assembly, Front (Left Hand) Handle Assem-bly, Upper Flexible Drive Cable, Drive Shaft Assembly Coupler and Power Head.

7. DRIVE SHAFT COUPLER – Includes Locator Pin and Clamping Knob.

8. LOWER DRIVE SHAFT ASSEMBLY – Includes the Debris Shield Assembly, Gear Housing Assembly, Lower Flexible Drive Cable, Nylon Cutting Attachment and Safety Decal.

9. NYLON CUTTING ATTACHMENT – Contains replaceable nylon trimming line that advances when the trimmer head is tapped against the ground while the head is turning at normal operating speed.

10. CUT-OFF KNIFE – Automatically trims line to the correct length: 5 in. after head is tapped on the ground. If trimmer is operated without a cut-off knife the line will become too long, the engine will overheat and engine damage may occur.

11. PLASTIC DEBRIS SHIELD ASSEMBLY – Included in plastic bag (co-pack). MUST be installed on unit before use, see Assembly Instructions. Shield assembly includes the Cut-Off Knife and Safety Decal. Mounts on the Gear Housing Assembly just above the cutting attachment. Helps protect the operator by deflecting debris produced during the trimming operation. This shield must be replaced with the steel shield for blade use.

12. THROTTLE TRIGGER – Spring loaded to return to idle when released. During acceleration, press trigger gradually for best operating technique.

13. TOP GUARD – Protects arm from the hot engine.

14. SPARK ARRESTOR – CATALYTIC MUFFLER / MUFFLER -The muffler or catalytic muffler controls exhaust noise and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep exhaust area clear of flammable debris.

15. FUEL TANK – Contains fuel and fuel filter.

16. FUEL TANK CAP – Covers and seals fuel tank opening.

17. I-30 RECOIL STARTER/HANDLE – i-30 spring-assisted recoil starter requires 30% less pulling force than standard recoil starter. Pull handle slowly until starter engages, then quickly and firmly. When engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.

18. PRIMER BULB – Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carburetor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional 4 or 5 times.

19. AIR CLEANER – Contains replaceable filter element.

20. CHOKE – Adjusts Fuel/Air ratio for starting or running engine. The choke control is located at the top of the air filter case. Move choke lever to “Cold Start” ( ) to close choke for cold starting. Move choke lever to “Run”
    ( ) position to open choke.

21. SPARK PLUG – Provides spark to ignite fuel mixture.

22. SAFETY VIDEO – (Not included with unit) P/N 99922202540 English version and P/N 99922203508 Spanish version are available at a cost of $5.00 from ECHO, INC. or any authorized ECHO dealer. The video overviews safety precautions and proper operating techniques and is supplemental to the Safety Manual. Read and understand the Safety Manual for complete information on safe operation.

SPECIFICATIONS

• MODEL —————————————————– SRM-210SB

• Unit Length ————————————————- 1770 mm (69.7 in.)

• Unit Width ————————————————– 251 mm (9.9 in.)

• Unit Height ————————————————- 235 mm (9.25 in.)

• Weight (dry) w/cutting attachment ———————- 4.82 kg (10.62 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.)

• Exhaust System ——————————————– Spark Arrestor Muffler

• Carburetor ————————————————– Zama Rotary model w/purge

• Ignition System ——————————————– CDI (capacitor discharge ignition)

• Spark Plug ————————————————– NGK BPM-8Y Gap 0.65 mm (0.026 in.)

• Fuel ———————————————————- Mixed (Gasoline and Two-stroke Oil)

• Fuel/Oil Ratio ———————————————– 50:1 two-stroke air cooled engine oil

• Gasoline —————————————————– 89 Octane unleaded. DO NOT use fuel containing methyl alcohol,
  more than 10% ethyl alcohol or 15% MTBE.

• Oil ———————————————————— Power Blend TM Premium Universal 2-Stroke Oil

• Fuel Tank Capacity —————————————- 0.45 lit. (15.2 US fl. oz.)

• Starter System ———————————————- i-30 Automatic Recoil Starter

• Clutch ——————————————————- Centrifugal Type

• Drive Shaft (upper & lower) —————————— 1/4 in. Flex Shaft

• Rotating Direction —————————————– Counter clockwise viewed from top

• Cutting Attachment ————————————— Nylon line head (2-line) with .095 in. Cross FireTM line capacity 6 m
  (20 ft.)

• Handles* —————————————————- Front – Loop, Rear – Grip, when operating with standard line head Shoulder Harness —————————————— Optional

• Idle Speed (RPM) —————————————— 2,400 – 3,200

• Wide Open Throttle Speed (**RPM)——————– 8,000 – 9,000

• Install and use U-Handle when operating any model with steel blade.

• The RPM range shown applies for all attachments. Refer to your attachment Operator’s Manual “Specifications”

ECHO APPROVED OPTIONAL ATTACHMENTS

WARNING DANGER
Use only ECHO approved attachments for these models. Serious injury may result from the use of non approved attachment combinations. Read and comply with all safety instructions listed in this manual and attachment manual.
ECHO, INC. will not be responsible for the failure of cutting devices, attachments or accessories which have not been tested and approved by ECHO for use with these units.

RECOMMENDED OPTIONAL ATTACHMENTS

• PAS Edger                                                 Model 99944200470
• PAS Cultivator                                         Model 99944200510
• PAS Trimmer                                           Model 99944200540
• PAS Hedge Clipper                                 Model 99944200480
• PAS Power PrunerTM                            Model 99944200530
• PAS Articulating Hedge Clipper          Model 99944200590
• PAS Rapid LoaderTM                            Model 99944200610
• PAS Brush Cutter                                    Model 99944200600

ASSEMBLY

POWER HEAD SHAFT/LOWER SHAFT ASSEMBLY
Tools Required : None
Parts Required : Split Boom Attachment Assembly

1. Set Power Head/Shaft Assembly on a level surface.

2. Pull locator pin (A) out, and turn counter-clockwise 1/4 turn to lock-out position.

3. Remove cardboard spacer, if necessary.

4. Carefully fit attachment drive shaft assembly into coupler (B) to decal assembly line (C), making sure that the inner lower drive shaft engages the square upper drive shaft socket.
   NOTE
   Earlier model Power Heads may have shorter couplings. Short couplings fit flush to decal point (E). New couplings are 4-3/4 in. long, and fit flush to line (C).
   NOTE
   Lower bearing housing and head assembly must be in line with the engine.

5. Rotate locator pin (A) 1/4 turn clockwise to engage lower shaft hole. Insure locator pin is fully engaged by twisting lower drive shaft. Locator pin should snap flush in coupler. Full engagement will prevent further shaft rotation.

6. Secure lower shaft assembly to coupler by tightening clamping knob (D).

PLASTIC SHIELD INSTALLATION (For Nylon Line Operation)

Tools Required : Screwdriver
Parts Required : Plastic Shield, Shield Plate, three (3) 5mm x 16mm screws

NOTE
The plastic shield is for use with the Nylon Line Head only. Install Metal Shield when using plastic or metal blades.

1. Remove vinyl protector from PTO shaft.
2. Place plastic shield on bottom of bearing housing flange.
3. Place shield plate on plastic shield, align holes. Install three (3) screws from bottom through plate and shield into gear case.
4. Install adapter plate (A) onto PTO shaft.

NYLON LINE HEAD INSTALLATION (Use with Plastic Shield)
Tools Required : Head Locking Tool
Parts Required : Nylon Line Head

1. Be sure upper adaptor plate remains on PTO shaft.
2. Align locking hole in upper plate with notch in edge of gear housing and insert head locking tool (B).
3. Thread line head onto shaft by turning it counter clockwise until head is tight against upper plate.
4. Remove head locking tool.

FRONT HANDLE INSTALLATION
Tools Required : Screwdriver
Parts Required : Front Handle Assembly
Position front handle for comfortable operation and secure screws.

PRE – OPERATION

OPERATION WITH BLADES
Preparing the Trimmer/Brush Cutter for Blade Use

WARNING DANGER
Blade use DEMANDS specific Brush Cutter configuration. Operation without specified shield and harness can result in serious personal injury. Follow installation instructions included in optional kits.

Grass/Weed Blades Require
Install Blade Conversion Kit, P/N 99944200415 – Includes metal shield (A), barrier bar (B), and shoulder harness (C).
NOTE
The Barrier Bar is NOT A HANDLE and should not be gripped when using or carrying the unit.
NOTE
The Barrier Bar is used to restrict rearward movement of the unit. For heavy- duty or extended use, U-handles should be used. See your Echo dealer or Trimmer/Brush Cutter Safety Manual for details regarding U-Handles. If you have additional questions, contact your Echo Service Dealer, or call Echo directly at 1-800-673-1558.

Brush/Clearing Blades Require
Install U-Handle / Blade Conversion Kit, P/N 99944200561 – Includes metal shield (A), shoulder harness with hip pad (C), and U-Handles (D).

Choosing the Correct Blade

WARNING DANGER
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.

• Plastic/Nylon Blades may be used where ever the nylon line head is used. DO NOT use this blade for heavy weeds or brush!
• 8 Tooth Weed/Grass Blade (P/N 69600120331) is designed for grass, garden debris and thick weeds. DO NOT use this blade for brush or heavy woody growth, 19 mm (3/4 in.) diameter or larger.
• 80 Tooth Brush Blade (P/N 69500120331) is designed for cutting brush and woody growth up to 64 mm (2-1/2 in.) diameter.
• 22 Tooth Clearing Blade (99944200130) is designed for dense thickets and saplings up to 64 mm (2-1/2 in.) diameter.
• Use Shoulder/Waist Harness (P/N 99944200200) Use of the Shoulder/Waist Harness is recommended for ALL Trimmer/Brush Cutter use. The Shoulder/Waist Harness suspends the trimmer from the operator’s shoulder and reduces operator fatigue.
• The restrictive harness enhances operator safety by reducing the possibility of blade contact with the operator’s hands and feet.

FUEL

Fuel Requirements

Gasoline – Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain up to 15% MTBE (methyl tertiary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT approved.
Two Stroke Oi l – A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FC Standards must be used. Echo brand premium Power Blend TM Universal 2-Stroke Oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD and J.A.S.O. FC certified oil, such as Echo premium Power Blend TM, will void the two-stroke engine warranty. (Emission related parts only are covered for two years, regardless of two-stroke oil used, per the statement listed in the Emission Defect Warranty Explanation.)

IMPORTANT
Echo premium Power Blend TM Universal 2-Stroke Oil may be mixed at 50:1 ratio for application in all Echo engines sold in the past regardless of ratio specified in those manuals.

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 and remix.
5. Install fuel container cap and wipe any spilled fuel from container and surrounding area.

Handling Fuel

WARNING DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or handling or serious personal injury may result.

• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow flames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT!
• NEVER refuel a unit with the engine running.
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks out doors over bare ground.
• Securely tighten fuel cap after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.

IMPORTANT
Spilled fuel is a leading cause of hydrocarbon emissions. Some states may require the use of automatic fuel shut-off containers to reduce fuel spillage. Contact your ECHO dealer for ordering information.

After Refueling

• Wipe any spilled fuel from the unit.
• Move at least 3 m (10 ft.) from refueling location before starting.

After use
DO NOT store a unit with fuel in its tank. Leaks can occur. Return unused fuel to an approved fuel storage container.

Storage
Fuel storage laws vary by locality. Contact your local government for the laws affecting your area. As a precaution, store fuel in an approved, air tight container. Store in a well ventilated, unoccupied building, away from sparks and flames. Do not store fuel longer than 30 days.

IMPORTANT
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.
IMPORTANT
Stored two-stroke fuel may separate. ALWAYS shake fuel container thoroughly before each use.

OPERATION

STARTING COLD ENGINE

WARNING DANGER
The attachment will operate immediately when the engine starts and could result in loss of control and possible serious injury. Keep movable parts of the attachment off the ground and away from objects that could become entangled or thrown.

1. Stop Switch
   Move stop switch button (A) forward away from the STOP position.

2. Choke
   Move choke lever (B) to Cold Start Position ( ).

3. Primer
   Pump primer bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional 4 or 5 times.

4. 4. Recoil Starter
   Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grasp right hand grip 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 [5] pulls).

5. Choke
   After engine fires (or 5 pulls), move choke lever back to Run ( ) position. Hold throttle trigger and throttle trigger lockout fully depressed, and pull recoil starter starter handle/rope until engine starts and runs. Release throttle trigger, and allow unit to warm up at idle for several minutes.
   NOTE
   If engine does not start with choke in “Run” position after 5 pulls, repeat instructions 4 and 5.

6. Throttle Trigger
   After engine warm-up, gradually depress throttle trigger to increase engine RPM to operating speed.

STARTING WARM ENGINE

The starting procedure is the same as Cold Start except DO NOT close the choke, and do not depress throttle trigger to wide open position.

WARNING DANGER
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/lever (A) away from the STOP position.

2. Primer
   Pump primer bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional 4 or 5 times.

3. Recoil Starter
   Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Rapidly pull recoil starter handle/rope (D) until engine fires.

STOPPING ENGINE

1. Throttle
   Release throttle, and allow engine to return to idle before shutting engine off.

2. Stop Switch
   Move stop switch button (A) backward to STOP position.

WARNING DANGER
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.

MAINTENANCE

Your ECHO unit is designed to provide many hours of trouble-free service. Regular scheduled maintenance will help your unit achieve that goal. 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. If a task is not listed, see your ECHO Dealer for repairs.

SKILL LEVELS

• Level 1 = Easy to do. Most required tools come with unit.
• Level 2 = Moderate difficulty. Some specialized tools may be required.
• Level 3 = Experience required. Specialized tools are required. ECHO recommends that the unit be returned to your ECHO dealer for service.

ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Below each task heading are listed the various part numbers required for that task. See your ECHO dealer for these parts.

MAINTENANCE INTERVALS

MAINTENANCE PROCEDURE LETTER CODES : I = INSPECT, R = REPLACE, C = CLEAN
IMPORTANT NOTE – Time intervals shown are maximum. Actual use and your experience will determine the frequency of required maintenance.
MAINTENANCE PROCEDURE NOTES

1. Apply ECHO® LUBETM every 25 hours of use.
2. Apply ECHO® LUBETM every 50 hours of use.

All recommendations to replace are based on the finding of damage or wear during inspection..

AIR FILTER

Level 1.
Tools required: 25 – 50 mm (1 or 2 in.) Cleaning brush
Parts required: 90008 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 the air cleaner area.
2. Remove the air cleaner cover. Clean and inspect the element for damage. If element is fuel soaked and very dirty, replace.
3. If element can be cleaned and reused, be certain it
   • still fits the cavity in the air cleaner cover.
   • is installed with the original side out.

NOTE
Carburetor adjustment may be needed after air filter cleaning/replacement.

FUEL FILTER
Level 1.
Tools required : 200-250 mm (8 – 10 in.) length of wire with one end bent into a hook, clean rag, funnel, and an approved fuel container.
Parts required : 90008 REPOWERTM AIR & FUEL FILTER KIT.

WARNING DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or handling, otherwise serious personal injury may result.

1. Use a clean rag to remove loose dirt from around fuel cap and empty fuel tank.
2. Use the “fuel line hook” to pull the fuel line and filter from the tank.
3. Remove the filter from the line and install the new filter.

SPARK PLUG

Level 2.
Tools required : T-Wrench (combination socket wrench and screw driver), Feeler gauge, brush.
Parts Required : REPOWERTM Tune-Up Kit P/N 90074

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 145-155 kg/cm (125-135 in. lb.).

COOLING SYSTEM CLEANING
Level 2.
Tools required : Cross head screwdriver, 3 mm hex wrench, 25 – 50 mm (1 or 2 in.) cleaning brush
Parts Required : None if you are careful.

IMPORTANT
To maintain proper engine operating temperatures, cooling air must pass freely through the cylinder fin area. This flow of air carries combustion heat away from the engine.

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 from spark pulg.

2. Remove the four screws that retain the engine cover (A). Two at the top of the recoil starter, one in the arm rest and on the muffler cover. Lift the cover from the engine.

3. Use the brush to remove dirt form cylinder fins.
   IMPORTANT
   Do not use a metal scraper to remove dirt from the cylinder fins.

4. Remove grass and leaves from the grid between the recoil starter and fuel tank.

5. Assemble components in reverse order.

EXHAUST SYSTEM

Spark Arrestor Screen
Level 2.
Tools required : Cross head screwdriver, 3 mm hex wrench, soft metal brush
Parts Required : Screen P/N 14586240630, Gasket P/N 14586642031

1. Remove spark plug lead from spark pulg.
2. Remove engine cover. See “Cooling System Cleaning” for step by step instructions.
3. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder.
4. Remove spark arrestor screen cover (A), gasket (B), and screen (C) from muffler body.
5. Clean carbon deposits from muffler components.
6. Replace screen if it is cracked, plugged or has holes burned through.
7. Assemble components in reverse order

Cylinder Exhaust Port
Level 3

IMPORTANT
The cylinder exhaust port must be inspected and cleaned of excess carbon every 3 months or 90 hours of operation in order to maintain this engine within the emissions durability period. ECHO strongly recommends that you return your unit to your ECHO dealer for this important maintenance service.

CARBURETOR ADJUSTMENT

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 Adjustment
High altitude adjustment is not required for proper operation of this engine.
Level 2.
Tools required : Screwdriver, Tachometer (ECHO P/N 99051130017).
Parts required : None.

NOTE
Every unit is run at the factory and the carburetor is set in compliance with emissions regulations. This carburetor does not have acceleration and high speed adjustment needles.

1. Before adjusting the carburetor, clean or replace the air filter and spark arrestor screen.
2. Start engine and run for several minutes to reach operating temperature.
3. Check idle speed and reset if necessary. If a tachometer is available, idle speed screw (A) should be set to the specifications found on page 11 “Specifications” of this manual. Turn idle screw (A) clockwise to increase idle speed; counter clockwise to decrease idle speed.

WARNING DANGER
When carburetor adjustment is completed, the cutting attachment should not turn at idle, otherwise serious personal injury may result.

LUBRICATION

Level 1.
Tools Required : 8 mm Open End Wrench, Screwdriver, Clean Rag
Parts Required : ECHO® LUBETM 8 oz. (P/N 91014) or Lithium Base Grease.

Gear Housing

1. Clean all loose debris from gear box.
2. Remove plug (A) and check level of grease.
3. Add grease if necessary, DO NOT over fill.

Drive Shaft (Lower)

IMPORTANT
Lower and upper drive shaft must be lubricated with high temperature automotive grease every 25 hours of operation, otherwise drive shaft assembly overheating and failure can result.

1. Loosen two (2) screws (B) and remove center locating screw (C). Pull gear box and shield from drive shaft housing.
2. Pull flexible cable from the drive shaft housing, wipe clean and re-coat with a thin coating [15 ml (1/2 oz.)] of ECHO® LUBETM.
3. Slide the flexible cable back in the drive housing. DO NOT get dirt on the flex cable.
4. Install the gear housing and shield assembly.

Drive Shaft (Upper)

1. Remove coupler (D) from upper drive shaft assembly by loosening clamping knob (E) and pulling locator pin (F) out, and turning 1/4 turn counter clockwise to lockout position.
2. Remove upper flex drive cable, wipe clean and apply a thin coating 15 ml (1/2 oz.) of ECHO® LUBETM.
3. Install flex drive cable. Make sure that the flex cable engages into the clutch mount and also into the coupler mount.
4. Slide coupler on upper drive shaft until fully seated. Rotate locator pin 1/4 turn clockwise to engage lower shaft hole. Insure locator pin is fully engaged by twisting lower drive shaft.
5. Secure lower shaft assembly to coupler by tightening clamping knob (E).

NYLON LINE REPLACEMENT

Level 1.
Parts Required: ECHO 0.095 in. Nylon Trimmer Line 6 m (20 ft.) long.

1. Shut engine off. Lay unit on the ground with head assembly up.
2. Hold drum (A) and turn spool (B) CW (clockwise) until it stops. Pull spool from drum. DO NOT push in on spool when turning.
3. Use one piece of new nylon line (C) 6 m (20 ft.) long and thread through the molded loop (D) on the spool. Pull line tight and adjust so one end is 15 cm (6 in.) longer than the other.
4. Hold the spool, opening toward you. Place index finger between the two strands and wind line, tightly and evenly, in direction of arrow (E) marked “CC”.
5. Stop when approximately 15-20 cm (6-8 in.) line (C) remains and place ends of line in notches (F) in spool (B).
6. Feed ends of line through housing eyelets (G) and place spool (B) over drive (H). Align pegs (I) on drive with notches in spool, and push spool into drum.
7. Pull on both lines until they come free from notches (F) in spool.
8. Hold drum (A) firmly and turn spool (B) CCW (counterclockwise) until it stops. DO NOT push in on spool when turning.
9. Pull both lines out and trim to cut-off knife length.

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.
Before sharpening, CLOSELY inspect blade for cracks (look at the bottom of each tooth and the center mounting hole closely), missing teeth and bending. If ANY of these problems are discovered, replace the blade.
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.

8-tooth Blade
Tool required: Flat file (preferred), electric grinder if special care is used, round (rat tail) file for gullet (radius).

1. File each tooth at a 30 degree angle a specific number of times, eg. 4 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. A sharp corner will lead to a crack and blade failure. IMPORTANT
   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.

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.

TROUBLESHOOTING

ENGINE PROBLEM TROUBLESHOOTING CHART

WARNING DANGER
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by grounding spark plug against cylinder, otherwise serious personal injury may result.

STORAGE

Long Term Storage (over 30 days)

WARNING DANGER
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.

1. Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage maintenance which includes the following:
   Store unit in a dry, dust free place, out of the reach of children.
   WARNING DANGER
   Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.

2. Place the stop switch in the “OFF” position.

3. Remove accumulation of grease, oil, dirt and debris from exterior of unit.

4. Perform all periodic lubrication and services that are required.

5. Tighten all the screws and nuts.

6. Drain the fuel tank completely and pull the recoil starter handle several times to remove fuel from the carburetor.

7. Remove the spark plug and pour 7 cc (1/4 oz.) of fresh, clean, two-stroke engine oil into the cylinder through the spark plug hole.

   • Place a clean cloth over the spark plug hole.
   • Pull the recoil starter handle 2-3 times to distribute the oil inside the engine.
   • Observe the piston location through the spark plug hole. Pull the recoil starter handle slowly until the piston reaches the top of it’s travel and leave it there.
   • Install the spark plug (do not connect spark plug cable).

SERVICING INFORMATION

PARTS
Genuine ECHO Parts and ECHO REPOWER™ 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. You can find these numbers on the engine housing. For future reference, write them in the space provided below.

Model No. _____ SN. ____

DEALER?
Call 1-800-432-ECHO
orwww.echo-usa.com

CONSUMER PRODUCT SUPPORT
1-800-673-1558
8:30 – 4:30 Mon – Fri C.S.T.

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. When presenting your unit for Warranty service/repairs, proof of purchase is required.
ECHO CONSUMER PRODUCT SUPPORT
If you require assistance or have questions concerning the application, operation or maintenance of this product you may call the ECHO Consumer Product Support Department at 1-800-673-1558 from 8:30 am to 4:30 pm (Central Standard Time) Monday through Friday. Before calling, please know the model and serial number of your unit to help your Consumer Product Support Representative.
WARRANTY REGISTRATION
You may register your Echo equipment using the warranty registration card or register on-line at www.echo-usa.com. Registering provides a direct link between you and ECHO if we find it necessary to contact you.

ADDITIONAL OR REPLACEMENT MANUALS
Safety Manuals in English/Spanish or English/French are available, free of charge, from your ECHO dealer or at www.echo-usa.com.
Operator’s and Parts Manuals are available by

• Downloading free from www.echo-usa.com
• Purchasing from your Echo Dealer.
• Manuals are available by sending a written request stating the model number and serial number of your Echo unit, part number of the manual, your name and address, and mail to the address below.

Available Parts Catalog

• SRM-210SB
• Serial Number 05001001 – 05999999
• Part Number 99922203252
• ECHO, INCORPORATED 400 OAKWOOD ROAD
• LAKE ZURICH, IL 60047-1564
• www.echo-usa.com

References

• Outdoor Power Equipment & Tools | ECHO
• Manual-Hub.com – Free PDF manuals!

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