Echo SRM-3020U User Manual

SRM-3020U

Grass Trimmer

/Brushcutter

Operator’s Manual

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

ENGLISH

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.

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.

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TABLE OF CONTENTS SRM-3020U

Introduction ................................................................................................. 4

Servicing Information .................................................................................. 4

Parts/Serial Number ............................................................................ 4

Service................................................................................................. 4

ECHO Consumer Product Support...................................................... 5

Product Registration ............................................................................ 5

Additional or Replacement Manuals .................................................... 5

Safety.......................................................................................................... 5

Manual Safety Symbols and Important Information............................. 5

International Symbols .......................................................................... 6

Personal Condition and Safety Equipment .......................................... 8

Equipment.......................................................................................... 13

Emission Control (Exhaust & Evaporative) .............................................. 14

CARB And EPA Emissions Control Information................................. 14

Description ................................................................................................ 16

Contents.................................................................................................... 18

Assembly................................................................................................... 18

U-Handle Installation.......................................................................... 18

Blade Installation ............................................................................... 19

Install Blade Shield and Blade ........................................................... 20

Shield with Cutoff Knife and Nylon Line Head Installation ................. 21

To Advance Trimmer Line .................................................................. 22

Balance and Adjust Unit .................................................................... 23

Operation .................................................................................................. 23

Operation With Blades....................................................................... 24

Blade Selection.................................................................................. 25

Fuel.................................................................................................... 27

Starting Cold Engine.......................................................................... 30

Starting Warm Engine........................................................................ 31

Stopping Engine ................................................................................ 33

Applications ....................................................................................... 33

Operating Techniques ........................................................................ 34

Reaction Forces................................................................................. 34

Blade Cutting Problems ..................................................................... 36

Maintenance ............................................................................................. 36

Skill Levels......................................................................................... 37

Maintenance Intervals........................................................................ 37

Air Filter ............................................................................................. 38

Fuel Filter........................................................................................... 40

Spark Plug ......................................................................................... 41

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SRM-3020U TABLE OF CONTENTS

Cooling System ................................................................................. 42

Exhaust System ................................................................................ 43

Carburetor Adjustment ...................................................................... 44

Lubrication......................................................................................... 46

Nylon Line Head Disassembly Instructions ....................................... 46

Nylon Line Replacement ................................................................... 47

Sharpening Metal Blades .................................................................. 48

Troubleshooting ........................................................................................ 50

Storage ..................................................................................................... 51

Long Term Storage (Over 30 Days)................................................... 51

Specifications ........................................................................................... 53

Product Registration ................................................................................. 54

ENGLISH

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INTRODUCTION SRM-3020U

INTRODUCTION

This product was designed and manufactured to provide long life and onthe-job dependability. Read and understand all provided literature. Keep manuals in a safe place for future reference. Literature contains specifications and information for safety, operation, maintenance, storage and assembly specific to this product. Scan QR codes for more information.

For questions regarding terms used in this manual, visit:

https://www.echo-usa.com/Support-Help/TechnicalDocuments

https://www.shindaiwa-usa.com/Tech-Support/TechnicalDocuments

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.

Model No. _______________

Serial No. _______________

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.

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SRM-3020U SAFETY

ECHO Consumer Product Support

If you require assistance or have questions concerning the application, operation, or maintenance of this product, call the ECHO Consumer Product Support Department at 1-800-673-1558 from 8:00 am to 5:00 pm (Central Standard Time) Monday through Friday. Before calling, please know the model and serial number of your unit.

Product Registration

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.

Additional or Replacement Manuals

Replacement Manuals and Parts Catalogs, are available from your Authorized ECHO Service Dealer, or at www.echousa.com, or by contacting ECHO Inc., 400 Oakwood Road, Lake Zurich, IL 60047 (800-673-1558). Always check www.echo-usa.com for updated information.

Safety Videos are available from your Authorized ECHO Service Dealer. A $5.00 shipping charge is required for each video.

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SAFETY

Manual Safety Symbols and Important Information

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

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.

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SAFETY SRM-3020U

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.

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.

CIRCLE AND SLASH SYMBOL This symbol means the specific action shown is prohibited. Ignoring these prohibitions can result in serious or fatal injury.

International Symbols

Symbol Description Symbol Description

Warning, See

Operator’s Manual

Wear Eye, Ear and

Head Protection

Wear Hand and Foot

Protection

Safety/Alert Emergency Stop

Hot Surface Fuel and Oil Mixture

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Carburetor Adjustment -

High Speed Mixture

Carburetor Adjustment -

Idle Speed

Carburetor Adjustment -

Low Speed Mixture

SRM-3020U SAFETY

Symbol Description Symbol Description

DO NOT Allow Flames

or Sparks Near Fuel

DO NOT Smoke Near

Fuel

Choke Control “RUN”

Position (Choke Open)

Keep Feet Away

From Blade

Keep Bystanders At Least 15 m (50 ft.) Away.

Beware Thrown Objects Wear Eye Protection

AVOID KICKOUT

Ignition

ON / OFF

Primer Bulb

Choke Control “COLD

START” Position (Choke

Closed)

Rotating Cutting

Attachment

Keep Bystanders and Helpers

Away 15 m (50 ft.)

ENGLISH

Thrown Objects Direction of Blade

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SAFETY SRM-3020U

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.

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

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SRM-3020U 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. Gloves also provide protection against cuts and scratches, cold environments, and reduce the transmission of machine vibration to your hands.

Hearing/Ear Protection

ECHO recommends wearing hearing 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. Dust masks can provide protection against dust, plant debris, and other plant matter such as pollen. Make sure the mask does not impair your vision, and replace the mask as needed to prevent air restrictions.

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Proper Clothing

Wear snug-fitting, durable clothing:

• Pants should have long legs, shirts should have long sleeves.

• DO NOT WEAR SHORTS.

• DO NOT WEAR TIES, SCARVES, JEWELRY, or clothing with loose or

hanging items that could become entangled in moving parts or surrounding growth.

• Keep clothing buttoned or zipped, and keep shirt tails tucked in.

Wear sturdy work shoes with nonskid rubber soles:

• DO NOT WEAR OPEN TOED SHOES.

• DO NOT OPERATE UNIT BAREFOOTED.

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SAFETY SRM-3020U

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. 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.

Extended Operation / Extreme Conditions

Prolonged exposure to cold and/or vibration may result in injury. Read and follow all safety and operation instructions to minimize risk of injury. Failure to follow instructions may result in painful wrist/hand/arm injuries.

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.

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SRM-3020U SAFETY

• 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 unit or other handheld 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 (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. Some believe that prolonged exposure to vibration may contribute to CTS. CTS can cause severe pain for months or even years.

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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 grasping, 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.

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SAFETY SRM-3020U

• 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.

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.

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 15 m (50 ft.) while the unit is in use.

Keep a Firm Grip

• Always hold throttle handle and support handle with thumbs and fingers tightly 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.

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SRM-3020U SAFETY

Equipment

Use only ECHO, INC. 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, INC. Read and comply with all safety instructions.

◆ 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.

◆ Check that handle and harness (if included) are

adjusted for safe, comfortable operation. See Assembly Section for proper adjustment.

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 assembling unit, removing obstructions, clearing debris, or servicing unit.

◆ Do not connect spark plug lead to spark plug unitl unit is

ready for use.

◆ DO NOT start or operate unit unless all guards and

protective covers are properly assembled to unit.

◆ NEVER reach into any opening while the engine is running.

Moving parts may not be visible through openings.

◆ Position wiring safely to prevent snagging, separation of

connectors, or breakage during operation. Gather excess wire, and secure with wiring clamp if provided on

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EMISSION CONTROL SRM-3020U

equipment, or tuck behind the air filter area. Do not place wiring directly against hot engine components.

◆ Check wiring and connectors for nicks, cuts, exposed wire,

or other damage, and repair or replace as needed. Exposed wire or connectors can cause shocks, sparks, and risk of fire or explosion, resulting in serious injury.

◆ Checkwire terminals for secrure connections.

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.

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). Evaporative emissions for California models are only applicable to fuel tanks.

An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by engine FAMILY).

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SRM-3020U EMISSION CONTROL

Product Emission Durability (Emission Compliance Period)

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.

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DESCRIPTION SRM-3020U

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.

1. Power Head

2. Throttle Handle - For Right Hand

3. Throttle Trigger Lockout

4. Stop Switch

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SRM-3020U DESCRIPTION

5. Support Handle - For Left Hand

6. Drive Shaft Assembly

7. Nylon Cutter Head

8. Debris Shield With Cut-off Knife

9. Cut-off Knife

10. Throttle Trigger

11. Spark Plug

12. Arm Rest

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. Purge Bulb

ENGLISH

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CONTENTS SRM-3020U

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.

1 Power Head / Drive Shaft Assembly

1 U-handle Assembly

1 U-handle Mounting Clamp (lower)

1 U-handle Mounting Clamp (upper)

1 U-handle Bolt

1Flat Washer

2 Cable Clips

1 Shield without Cutoff Knife

3 Lock Nuts (shield mounting)

1 Lower Blade Fixing Plate

1 Large Nut (blade mounting)

1 Operator’s Manual

1 Warranty Statement

1 Safety Glasses

1 Shoulder Harness with Hip Pad

12 Cotter Pins

ASSEMBLY

U-Handle Installation

Parts Required: u-handle, upper and lower u-handle clamps, u-handle bolt, flat washer.

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SRM-3020U ASSEMBLY

1. Install upper and lower uhandle clamps (A) onto uhandle, and secure to mounting bracket on drive shaft (B) with washer (C) and u-handle bolt (D). Do not tighten bolt securely until final adjustments are completed.

2. Position u-handle as shown and tighten u-handle bolt.

3. Route throttle linkage and ignition lead assembly along shaft and clip as shown.

ENGLISH

Blade Installation

Blades must be selected for type of cutting being performed. See “Blade Selection.”

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.

Shield with cutoff knife is for use with the nylon line head only. Install shield without cutoff knife when using plastic or metal blades, or serious injury may result.

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ASSEMBLY SRM-3020U

Remove Nylon Line Head

1. If installed, remove nylon line head, line head plate, shield plate, and shield with cutoff knife .

a. Align locking hole in

adapter plate with notch in edge of gear case. Insert head locking tool (A).

b. Remove line head (B) by

turning it clockwise until head is completely off of shaft.

c. Remove locking tool (A)

and line head plate.

d. Remove three screws holding shield plate and shield with cutoff

knife to gear housing.

e. Retain line head, shield plate, and shield with cutoff knife for

conversion back to nylon line head operation.

Install Blade Shield and Blade

Parts required: shield without cutoff knife, blade (available seperately), shield plate, three bolts, three lock nuts.

1. Align holes in shield plate (A), shield (B) and bottom of gear case flange. Install three bolts (C) and three lock nuts (D).

2. Tighten all shield hardware.

3. Install upper plate with pilot on splined power take off shaft, pilot side out.

4. Install blade (E) on upper plate pilot. The rotation arrows on the blade must match the rotation arrow shown on the debris shield. Secure blade with lower plate (F), and 10 mm left-hand threaded nut (G). Turn nut counterclockwise on power take off shaft to tighten.

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SRM-3020U ASSEMBLY

5. Align hole in upper plate with notch in gear housing, and insert locking tool (H) to prevent splined shaft from turning. Tighten 10 mm nut securely (do not use an impact wrench).

6. Insert a new cotter pin in hole in power take off shaft. Bend pin legs around shaft counterclockwise to retain 10 mm nut. Do not reuse an old cotter pin.

7. Remove locking tool (H).

Shield with Cutoff Knife and Nylon Line Head Installation

Parts required: shield with cutoff knife, shield plate, three screws, line head plate, nylon line head.

Shield with cutoff knife is for use with the nylon line head only. Install shield without cutoff knife when using plastic or metal blades, or serious injury may result.

Wear gloves or personal injury may result:

◆ Cutoff knife is sharp.

◆ Gearcase and surrounding area may be hot.

ENGLISH

Semi-automatic nylon line heads must be used only with debris shield with cut-off knife. Using nylon line heads with debris shield without cutoff knife can result in trimmer damage, caused by operation with excessive line length.

Note: Your nylon line head may appear different than nylon line head

shown.

1. Remove blade, blade mounting hardware, and shield without cutoff knife and retain for future use with blade conversions.

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ASSEMBLY SRM-3020U

2. Align holes in shield (A) and shield plate (B) to bottom of gear case flange. Install three (3) screws.

3. Place line head plate (C) on power take off shaft (D).

4. Align notch in edge of shield and hole in line head plate with notch in edge of gear housing and insert locking tool (E).

5. Thread line head (F) onto power take off shaft by turning it counterclockwise until head is tight against line head plate (C).

6. Remove locking tool (G).

To Advance Trimmer Line

See Maintenance Section for nylon line replacement.

Note: To advance trimmer line, tap trimmer head against the ground

while the head is turning at normal operating speed.

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SRM-3020U OPERATION

Balance and Adjust Unit

1. Loosen harness clamp screw.

2. Put on harness and attach unit to harness.

3. Slide harness clamp up (A) or down until unit balances with head approximately 50-75 mm (2-3 in.) from the ground.

4. Tighten harness clamp screw.

5. Loosen upper U-Handle clamp screw (B), and position U-Handle for comfortable operation.

6. Tighten U-Handle clamp screws and 8 mm clamp hex bolt securely.

OPERATION

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.

ENGLISH

Engine exhaust is HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is directed away from your face and body.

Operation of this equipment may create sparks that can start fires around dry vegetation. This unit is equipped with a spark arrestor to prevent discharge of hot particles from the engine. 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.

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OPERATION SRM-3020U

◆ Always maintain a direct, clear line of site to the unit and

the work being performed.

◆ Always be alert for changes in operation of unit.

◆ Always shut engine off before transporting unit to new

location.

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.

Pro Maxi-Cut

Grass/Weed

Blade

Tri-Cut Grass/

Weed Blade

Metal Grass /

Weed Blade

Metal Brush /

Clearing

Blades

Support

Handle, with or

without Barrier

U-Handle or Support Handle with

Barrier Bar

U-handle*

Bar

Shield with cutoff knife

Shield without cutoff knife

Harness

Upper Plate &

Flat Washer

Upper/Lower Blade Plates

Hex Nut

New Cotter Pin

*ANSI standards require brush cutters be equipped with a barrier bar or restrictive harness. U-Handle ensures a higher safety factor.

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SRM-3020U OPERATION

Do Not install blades on GT (Curved Shaft) model trimmers.

• Arbor diameter of upper blade plate must match arbor diameter of blades.

• A new cotter pin is required each time a blade is installed.

• Brush cutters over 7.5 kg (16.5 lbs.) dry weight (without fuel) require a

double shoulder harness.

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. Never use an edging blade, circular saw blade, or any other type of unapproved blade.

3-Tooth Grass/Weed Blades may be used where ever the nylon line head is used. DO NOT use this blade for heavy weeds or brush.

ENGLISH

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.

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OPERATION SRM-3020U

80 Tooth Brush Blade is designed

for cutting brush and woody growth up to 13 mm (0.5 in.) diameter.

22 Tooth Clearing Blade is designed for dense thickets and saplings up to 64 mm (2.5 in.) diameter.

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.

Use Shoulder/Waist Harness Use of the shoulder/waist harness is recommended for ALL Trimmer/ brushcutter use, not just blade operation. The shoulder/waist harness when used in a trimming operation with nylon line head suspends the trimmer from the operator's shoulder and reduces operator fatigue.

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SRM-3020U OPERATION

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.

Make sure the warning sign on the back of the shoulder harness can be read easily.

Note: In case of Emergency, disconnect the trimmer from the

harness.

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. Diesel or alternative fuels may also cause premature deterioration of fuel lines, gaskets, carburetors and other engine components.

Fuel Requirements

Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to

be good quality. Gasoline may contain up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood alcohol) is NOT approved. ECHO Red Armor 93 octane, ethanol-free fuel premixed with ECHO Red Armor 50:1 ratio. Use of ECHO Red Armor to extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.

™

Fuel (Power Fuel™) is recommended

™

Fuel (Power Fuel™) is

™

engine oil at

ENGLISH

Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD

13738) and J.A.S.O. FD Standards must be used. ECHO brand 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. M345-FD stroke engine warranty.

X7502350200 27

certified oil, such as ECHO brand 2-stroke oils, will void the two-

OPERATION SRM-3020U

2-Stroke engine oil contains petroleum distillates and other additives that may be harmful if swallowed. Heated oil can release vapors that can cause flash fire, or ignite with explosive force. Read and follow the oil manufacturer’s instructions, and observe all safety warnings and precautions for handling flammable liquids. For more detailed safety and first aid information, visit www.echo-usa.com for a copy of the Material Safety Data Sheet.

◆ KEEP OUT OF REACH OF CHILDREN.

◆ If swallowed, do not induce vomiting. CALL PHYSICIAN OR A

POISON CONTROL CENTER IMMEDIATELY.

◆ WEAR SAFETY GLASSES when mixing or handling.

◆ AVOID repeated or prolonged skin contact

◆ AVOID inhaling oil mists or vapors.

ECHO brand 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.

◆ 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 or RUNNING!

◆ DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks

outdoors over bare ground.

◆ DO NOT overfill fuel tank. Wipe up spills immediately.

◆ Securely tighten fuel tank cap and close fuel container

after refueling.

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SRM-3020U OPERATION

Fuel to Oil Mix – 50:1 Ratio

US Metric

Gas Oil Gas Oil

gal. fl.oz. L cc

12.65100

2 5.2 10 200

51325500

◆ Inspect for fuel leakage. If fuel leakage is found, do not

start or operate unit until leakage is repaired.

◆ Move at least 3 m (10 ft.) from refueling location before

starting the engine.

Gasoline vapor is heavier than air, and can travel along the ground to nearby sources of ignition such as electrical motors, pilot lights, and hot or running engines. Vapors ignited by an ignition source can flash back to the fuel container, resulting in an explosion, fire, serious or fatal injuries, and extensive property damage.

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.

ENGLISH

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.

• Empty the fuel tank prior to storing the unit. 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, airtight container. Store in a well-ventilated, unoccupied building, away from sparks and flames.

Stored fuel ages. Do not mix more fuel than you expect to use in 30 days, 90 days when a fuel stabilizer is added.

X7502350200 29

OPERATION SRM-3020U

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

Used oil and gasoline, and soiled towels are hazardous waste materials. Disposal laws vary by locality.

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 button (A) forward, away from the STOP position.

30 X7502350200

SRM-3020U OPERATION

2. Choke

Move choke lever (B) to COLD START position.

3. Purge Bulb

Pump purge bulb (C) until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an additional four or five times.

Note: Lightly place knee on

drive shaft to stabilize unit during starting. Do not apply excessive downward force or damage to unit can occur.

4. Recoil Starter

Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. 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).

5. Choke

After engine fires (or five pulls), move choke lever back to RUN position. Firmly grasp throttle handle (E) and throttle trigger lockout with left hand and fully depress throttle trigger to wide open position. Pull recoil starter handle until engine starts and runs. Release throttle trigger, and allow unit to warm up at idle for several minutes.

ENGLISH

Note: If engine does not start with choke in “RUN” position after five

pulls, repeat instructions 2 - 5.

6. Throttle Trigger

After engine warm-up, grip throttle handle and support handle. Depress the throttle trigger lockout, and 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 hold throttle trigger fully depressed.

X7502350200 31

OPERATION SRM-3020U

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.

2. Purge Bulb

Pump purge bulb (C) until fuel is visible in the “Clear” fuel return line.

Note: Lightly place knee on

drive shaft to stabilize unit during starting. Do not apply excessive downward force or damage to unit can occur.

32 X7502350200

SRM-3020U OPERATION

3. Recoil Starter

Lay the unit on a flat area and keep movable attachment parts clear of all obstacles. Firmly grip throttle handle (E) 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.

Stopping Engine

1. Throttle

Release throttle trigger and allow engine to return to idle before shutting off engine.

2. Stop Switch

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

ENGLISH

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

X7502350200 33

OPERATION SRM-3020U

Tr i mm in g

Feed the spinning line into the material to be cut. Tilt the line head to one side to direct cutting debris away from you:

• Model SRM/PAS/SB (Straight shaft, counter-clockwise line head rotation)

- Tilt the cutting head down on the right side (muffler side) while cutting to direct cutting debris away from operator. Feed the line gradually into the material you wish to cut, avoiding contact with fences or other barriers

Scything

Scything - Swing the cutting head in a level arc, gradually feeding the line into the material being cut. Move forward with each arc to cut a swath. Width of cutting swath depends on arc. Use a larger arc for a wider swath, or a smaller arc for a narrow swath. Keep line head tilted to direct cutting debris forward or away from you.

Operating Techniques

• Debris flows in direction of lne head rotation. Change line head position to assure debris flow is directed away from operator.

• Keep cutting line away from wire fences to avoid entanglement.

• Operate trimmer only with cutting head below knee height.

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.

Understanding what causes these reactive forces may help you to avoid them, and can help you to maintain control of the equipment if you experience a sudden reaction during cutting. Reactive forces occur when the force being applied by the cutting teeth of a blade meet resistance, and some of the cutting force is directed back toward the equipment. The greater the cutting force or the amount of resistance, the greater the reactive force.

34 X7502350200

SRM-3020U OPERATION

Push and Pull Forces

Push and pull forces are reactive forces that push the equipment directly toward the operator, or that pull the equipment directly away from the operator. These forces are the result of cutting on the sides of the blade. The direction of the force depends on the side of the blade being used, and the direction of blade rotation at the point of contact. 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.

As shown in the illustration, a blade turning counterclockwise will cause the equipment to pull away from the operator if the point of cutting resistance is on the left side of the blade. If the point of cutting resistance is on the right side of the blade, the equipment will push back toward the operator. In both examples, the reactive force is in the opposite direction of blade rotation at the contact point where resistance occurs.

Kickout

Kickout is also a reactive force caused by resistance to cutting, but the direction of blade thrust is lateral (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:

ENGLISH

• 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

X7502350200 35

MAINTENANCE SRM-3020U

Blade Cutting Problems

Binding - Blades may bind in the cut if dull or forced. Binding can damage blade, and result in blade breakage or injury from fragments and flying debris. If a blade binds in a cut, don’t try to get it out by applying “up and down” force to pry the cut open. Applying prying force to the blade can bend the blade, and result in blade failure and injury.

To free a blade that is bound in the cut, stop the engine, and support the trimmer or brushcutter to keep stress off the blade. Push the tree away from the entry point of the cut to open the cut, and pull the blade directly away from the cut in a straight-line motion. Use caution when releasing the tree to avoid being struck by spring-back or falling.

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

• 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

MAINTENANCE

Operating a poorly maintained unit can result in serious injuries to operator or bystanders. Always follow all maintenance instructions as written, otherwise serious personal injury may result.

36 X7502350200

SRM-3020U 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, we recommend that you take your unit to an ECHO Servicing 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 the task is not listed, see your ECHO Dealer for repairs.

Skill Levels

Level 1 = Easy to do. Common tools may be required.

Level 2 = Moderate difficulty. Some specialized tools may be required.

Level 3 = See your dealer.

Click HERE or go to http://www.echo-usa.com/products/maintenance-kit for information on Maintenance Kits.

Maintenance Intervals

ENGLISH

COMPONENT/SYSTEM

Daily or Before Use

Air Filter

Choke Shutter

Fuel System

Cooling System

Recoil Starter Rope

Screws/Nuts/Bolts

Every Refuel

Fuel System

3 Months

Air Filter

Fuel Filter

Fuel Cap Gasket

Spark Plug

Muffler Spark Arrestor

Cylinder Exhaust Port

Drive Shaft (Flex Cable Models)

Gear Housing

MAINTENANCE

PROCEDURE

Inspect/Clean*

Inspect

Inspect/Clean 2

Inspect/Clean*

Inspect/Tighten/Replace*

Inspect

Replace*

Inspect*

Inspect/Clean/Replace*

Inspect/Clean/De-carbon

Grease

SKILL

LEVEL

X7502350200 37

MAINTENANCE SRM-3020U

COMPONENT/SYSTEM

MAINTENANCE

PROCEDURE

SKILL

LEVEL

Yearly

Fuel Filter

Fuel Cap Gasket

Inspect/Replace*

Replace*

IMPORTANT NOTE - Time intervals shown are maximum. Actual use and

your experience will determine the frequency of required maintenance.

MAINTENANCE PROCEDURE NOTES:

Apply lithium based grease every 25 hours of use.

Apply lithium based grease every 50 hours of use.

Low evaporative fuel tanks DO NOT require regular maintenance to

maintain emission integrity.

*Replacement is recommended based on the finding of damage or wear during inspection.

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.

38 X7502350200

SRM-3020U MAINTENANCE

Assure throttle wire retaining clip (A) remains in place as shown when removing or installing air filter cover.

3. Remove foam pre-filter (B) and air filter and clean as indicated below:

4. Foam Pre-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

ENGLISH

• Lightly brush debris from filter. Replace filter if it is damaged, fuel

soaked, very dirty, or the rubber sealing edges are deformed.

5. Assemble components in reverse order.

X7502350200 39

MAINTENANCE SRM-3020U

Assure air filter is assembled with pleats oriented vertically.

Fuel Filter

Level 1.

Parts Required: Tune Up Kit.

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

1. Use a clean rag to remove loose dirt from around fuel cap and empty fuel tank.

2. Pull the fuel filter from the fuel tank.

Do not damage fuel line while removing fuel filter from tank.

3. Remove the filter from the line and install the new filter.

40 X7502350200

SRM-3020U MAINTENANCE

0.65 mm (0.026 in.)

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. 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.

Spark Plug

Level 2.

Parts Required: Tune Up Kit.

Use only NGK CMR7H spark plug otherwise severe engine damage may occur.

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 102-153 kgf•cm (89-133 in•lbf).

ENGLISH

X7502350200 41

MAINTENANCE SRM-3020U

Cooling System

Level 2.

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.

2. Remove muffler cover (A).

3. Remove engine cover (B).

DO NOT use a metal scraper to remove dirt from the cylinder fins.

4. Use brush to remove dirt from the cylinder fins.

42 X7502350200

SRM-3020U MAINTENANCE

5. Remove grass and leaves from the grid (C) between the recoil starter and fuel tank.

6. Assemble components in reverse order.

Exhaust System

Spark Arrestor Screen

Level 2.

Parts Required: Spark Arrestor Screen, Gasket

1. Remove spark plug lead.

2. Remove muffler cover (A).

3. Place piston at Top Dead Center (TDC) to prevent carbon or dirt from entering cylinder.

4. Remove spark arrestor screen cover (B), gasket (C), and screen (D), from muffler body.

5. Clean carbon deposits from muffler components.

Note: When cleaning carbon

deposit, be careful not to damage the catalytic element inside muffler.

6. Replace screen if it is cracked, plugged, or has holes burned through.

7. Assemble components in reverse order.

ENGLISH

Exhaust Port Cleaning

Level 2.

Parts Required: As needed: Heat Shield

1. Remove spark plug lead from spark plug, and remove muffler cover.

2. Place piston at top dead center. Remove muffler (A).

X7502350200 43

MAINTENANCE SRM-3020U

3. Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port (B).

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. Install heat shield and muffler.

6. Tighten muffler mounting bolts (or nuts) to 90-110 kgf•cm (80 -

95 in•lbf).

7. Install muffler cover and attach spark plug lead.

8. Start engine, and warm to operating temperature.

9. Stop engine, and re-tighten mounting bolts (or nuts) to specifications.

Carburetor Adjustment

Level 2.

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

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). To maintain proper engine operation above 330 m (1100 ft.) ASL the carburetor may

44 X7502350200

need to be adjusted by an authorized service dealer.

SRM-3020U MAINTENANCE

If the engine is adjusted for operation above 330 m (1100 ft.) ASL, the carburetor must be re-adjusted when operating the engine below 330 m (1100 ft.) ASL, otherwise severe engine damage may result.

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 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 of this manual. Turn idle screw (A) clockwise to increase idle

speed; counterclockwise to decrease idle speed.

ENGLISH

X7502350200 45

MAINTENANCE SRM-3020U

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.

Drive Shaft

1. Loosen screw (B) and remove locating screw (C). Pull gear case and shieldfrom 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. 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.

Nylon Line Head Disassembly Instructions

Note: For normal use, Speed Feed® head disassembly is not

necessary. However, if circumstances require disassembly, follow these instructions.

46 X7502350200

SRM-3020U 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.

Nylon Line Replacement

Wear gloves or personal injury may result:

◆ Cutoff knife is sharp.

◆ Gearcase and surrounding area may be hot.

ENGLISH

1. Cut one piece of line to recommended length.

2.0 mm (0.080 in.) diameter

7.6 m (25 ft.).

2.4 mm (0.095 in.) diameter

7.6 m (25 ft.).

2. Align arrows on top of knob with openings in eyelets.

X7502350200 47

MAINTENANCE SRM-3020U

3. Insert one end of trimmer line into an eyelet, and push line equal distance through trimmer head.

4. 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. The 8-tooth blade can be sharpened during normal maintenance. The clearing blade and 80-tooth blade require professional service.

48 X7502350200

SRM-3020U MAINTENANCE

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.

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. A sharp corner will lead to a crack and blade failure.

ENGLISH

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.

X7502350200 49

TROUBLESHOOTING SRM-3020U

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.

ENGINE PROBLEM TROUBLESHOOTING CHART

Problem Check Status Cause Remedy

Engine starts hard or Engine does not start

Fuel at carburetor

No fuel at carburetor

No fuel at cylinder

Fuel strainer or fuel line obstructed

Carburetor

Clean or replace

See your ECHO dealer

OPEN choke

Fuel at

Engine starts hard

Engine does not start

50 X7502350200

cylinder

Spark at end of plug wire

Spark at plug

Muffler wet with fuel

No spark

Fuel mixture too rich

Stop switch OFF - Electrical problem - Interlock switch

Incorrect gap Covered with carbon - Fouled with fuel - Plug defective

Clean or replace air filter

Adjust carburetor

See your ECHO dealer

Turn switch to ON

See your ECHO dealer

Adjust to 0.65mm (0.026 in.)

Clean or replace plug

SRM-3020U STORAGE

ENGINE PROBLEM TROUBLESHOOTING CHART

Problem Check Status Cause Remedy

Air filter Air filter dirty Normal wear Clean or replace

Engine runs, but dies

Engine does not accelerate properly

Engine does not crank

Fuel filter Fuel filter dirty

Fuel vent

Spark plug

Carburetor

Cooling system

Spark arrestor screen

Fuel vent plugged

Plug dirty or worn

Improper adjustment

Cooling system dirty or plugged

Spark arrestor screen plugged

N/A

Contaminants or residue in fuel

Contaminated fuel

Normal wear

Vibration Adjust

Extended operation in dirty or dusty locations

Normal wear Replace

Internal engine problem

Replace filter or replace fuel

Clean or replace

Clean and adjust or replace

Clean

See your ECHO dealer

STORAGE

ENGLISH

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. Store unit in a dry, dust free place, out of the reach of children.

X7502350200 51

STORAGE SRM-3020U

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 fuel tank completely. Press purge bulb 6- 7 times to remove remaining fuel from carburetor then drain the tank again. Close choke, start and run the engine until it stops due to lack of fuel.

7. Allow engine to cool. Remove the spark plug lead from the spark plug. Remove the spark plug. Pour 7 cc (0.25 oz.) of fresh, clean, two-stroke engine oil into the cylinder through the spark plug hole.

8. Pull the recoil starter handle 2 -3 times to distribute the oil inside the engine.

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.

52 X7502350200

SRM-3020U SPECIFICATIONS

SPECIFICATIONS

MODEL SRM-3020U

Length without cutter head 1,808 mm (71.2 in.)

Width 306 mm (12 in.)

Height 344 mm (13.5 in.)

Weight (dry) without cutter head

Engine Type

Bore 36 mm (1.42 in.)

Stroke 30 mm (1.18 in.)

Displacement 30.5 cc (1.86 in.³)

Exhaust

Carburetor Diaphragm wth purge pump

Ignition System Flywheel magneto, capacitor discharge ignition type

Spark Plug NGKCMR7H – Gap 0.6 mm (0.026 in.)

Fuel Mixed (Gasoline and Two-stroke Oil)

Fuel/Oil Ratio

Gasoline

Oil

Fuel Tank Capacity 0.71 L (24 US fl. oz.)

Starter System Automatic rewind starter

Clutch Centrifugal type

Vibration Isolated System

Operating Rod 25.0 mm (0.98 in.) aluminum tube

Drive Shaft 6.15 mm (0.25 in.) flexible shaft

Gear Case Ratio 1.62:1

Rotating Direction Counterclockwise; viewed from top

5.5 kg (12.1 lb.)

Air cooled, two-stroke, single cylinder gasoline engine

Spark arrestor muffler or spark arrestor muffler with catalyst

™

50:1 Power Blend X EGD (ISO/CD 13738) and J.A.S.O. M345- FD stroke, air-cooled engine oil.

Use 89 Octane unleaded. Do not use fuel containing methyl alcohol, more than 10% ethyl alcohol or 15% MTBE. Do not use alternative fuels such as E15 or E85.

Power Blend X Universal 2-Stroke Oil

Rubber cushion on engine mount (heavy duty). Rubber grip on front handle.

or ECHO Red Armor™ ISO-L-

™

or ECHO Red Armor™ Premium

, two-

ENGLISH

X7502350200 53

PRODUCT REGISTRATION SRM-3020U

MODEL SRM-3020U

Cutter Head

Handle Front – loop, rear handle

Shoulder Harness Optional

Idle Speed 2,900 RPM

Clutch Engagement Speed 3,700 RPM

Wide Open Throttle Speed 10,200 RPM

Speed Feed

7.6 m (25 ft.)

450 LH nylon line head, line capacity

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.

If you do not have access to the Internet, you can complete the form below and mail to:

ECHO Inc., Product Registration, PO Box 1139, Lake Zurich IL 60047.

54 X7502350200

SRM-3020U PRODUCT REGISTRATION

ENGLISH

X7502350200 55

U09915001001 - U09915999999

ECHO, INCORPORATED

400 Oakwood Road

Lake Zurich, IL 60047

www.echo-usa.com

Echo SRM-3020U User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

INTRODUCTION

SERVICING INFORMATION

SAFETY

EMISSION CONTROL SRM-3020U

DESCRIPTION

CONTENTS

ASSEMBLY

OPERATION

MAINTENANCE

TROUBLESHOOTING

STORAGE

SPECIFICATIONS

PRODUCT REGISTRATION