Grass T rimmer/Brush Cutter
Operator's Manual
MODEL SRM - 230
Serial Number 05001001 - 05143223
SRM - 230S
Serial Number 05001001 - 05014429
X7502099201
WARNING DANGER
Read rules for safe operation and instructions carefully. ECHO provides an Operator's
Manual and a Safety Manual. Both must be read and understood for proper and safe
operation.
X750003691
11/03
2
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 SAFETY MANUAL
Read and understand this manual before operation. Keep it in a safe
place for future reference. It explains possible hazards involved with the
use of Grass Trimmers and Brush Cutters and what measures you
should take to make their use safer.
TABLE OF CONTENTS
Introduction ........................................................................ 2
- The Operator's Manual .............................................. 2
- The Safety manual ...................................................... 2
Manual Safety Symbols and Important Information ......... 3
Safety.................................................................................. 3
- Decals ......................................................................... 3
- International Symbols................................................. 4
Safety Instructions ............................................................. 5
- Personal Condition and Safety Equipment................. 5
- Extended Operation/Extreme Conditions ................... 5
- Equipment .................................................................. 6
- Safe Operation ............................................................ 7
Emission Control ................................................................ 7
Description ......................................................................... 8
- Contents ..................................................................... 8
Specifications.................................................................... 10
Assembly.......................................................................... 11
- Plastic Shield Installation.......................................... 11
- Nylon Line Head Installation ................................... 11
- Front Handle Installation.......................................... 12
Pre-Operation ................................................................... 12
- Operation with Blades.............................................. 12
- Fuel ........................................................................... 15
Operation.......................................................................... 16
- Starting Cold Engine ................................................. 16
- Starting Warm Engine ............................................... 17
- Stopping Engine........................................................ 17
Maintenance ..................................................................... 18
- Skill Levels................................................................ 18
- Maintenance Intervals .............................................. 18
- Air Filter ................................................................... 19
- Fuel Filter ................................................................. 19
- Spark Plug................................................................. 20
- Cooling System Cleaning .......................................... 20
- Exhaust System ........................................................ 21
- Carburetor Adjustment Emission ............................. 22
- Lubrication................................................................ 23
- Nylon Line Replacement .......................................... 24
- Sharpening Metal Blades .......................................... 25
Troubleshooting................................................................ 26
Storage .............................................................................. 27
Servicing Information........................................................ 28
- Parts.......................................................................... 28
- Service ....................................................................... 28
- ECHO Consumer Product Support.......................... 28
- Warranty Card .......................................................... 28
- Additional or Replacement Manuals ........................ 28
Copyright© 2003 By Echo, Incorporated
All Rights Reserved.
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.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
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.
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.
IMPORTANT The enclosed message
provides information necessary for the
protection of the unit.
3
The circle with the slash symbol means whatever is
shown within the circle is prohibited.
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
NOTE This enclosed message provides
tips for use, care and maintenance of the
unit.
Hot Decal (near muffler)
P/N 89016006361
English Translation
89022890560
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
escritos en español.
P/N 89022890560
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.
4
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Shaft Decal
W ARNING 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 releasingthrottle.
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.
P/N 89016844830
INTERNA TIONAL SYMBOLS
DESCRIPTION
"WARNING, SEE
OPERATOR'S
MANUAL
Wear eye, ear
and head
protection
Wear hand and
foot protection
SYMBOLSYMBOL
Safety/Alert
Keep bystanders and helpers
DESCRIPTION
Finger Severing
DO NOT allow
flames or sparks
near fuel.
DO NOT smoke
near fuel.
away 15 m (50 ft.).
Hot
Surface
SYMBOL DESCRIPTION
Emergency
Stop
Carburetor
Adjustment
- High speed
mixture
Carburetor
Adjustment
- Idle speed
Carburetor
Adjustment
- Low speed
deggolcreniartsleuF
taleufoN
deggolcenilleuF
roterubract
roterubrac
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rednilycta
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ffohctiwspotS
dnetakr
melborplacirtcelE
krapsoN
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roterubr
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ytridretlifriAraewlamroN
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leufni
seudiser/stnanimatnoC
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leufni
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reporpmI
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evissecxEninoitarepodednetxE
mixture
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OothctiwsnruT
ohcEruoyeeS
ohcEruoyeeS
Ignition
m56.ottsujdA
calperronaelC
calperronaelC
gulpecalpeR
calperronaelC
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ON/
calperronaelC
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OFF
SYMBOL
DESCRIPTION
Fuel and oil
mixture
Primer
Bulb
Choke Control
"Run"
Position
(Choke Open)
Choke Control
"Cold Start"
Position
(Choke Closed)
Do not use
blades. String
line only
SAFETY INSTRUCTIONS
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
5
PERSONAL
CONDITION AND SAFETY EQUIPMENT
W ARNING 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 --
Wear eye protection that meets ANSI Z87.1 or CE
requirements whenever you operate the trimmer.
Hand Protection --
Wear no-slip, heavy duty work gloves to improve your
grip on the Trimmer/Brush Cutter handles. Gloves also
reduce the transmission of machine vibration to your
hands.
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, SCARVES, JEWELRY.
Wear sturdy work shoes with non-skid soles;
• DO NOT WEAR OPEN TOED SHOES,
• DO NOT OPERATE UNIT BAREFOOTED.
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.
6
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 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.
• 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
W ARNING 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 issecurely
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.
• Keep exhaust area clear of flammable debris. Avoid contact during
and immediately after operation.
GRASS TRIMMER/BRUSH CUTTER
SAFE OPERATION
W ARNING 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.
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.
OPERATOR'S MANUAL
7
EMISSION CONTROL
EPA Phase 2
The emission control systems for these engines are EM (Engine Modification).
IMPORTANT ENGINE INFORMATION
ENGINE FAMILY: 3EHXS.0234EA DISPLACEMENT: 22.8 CC
EMISSION COMPLIANCE PERIOD : 300 HRS.
THIS ENGINE MEETS U.S. EPA PHASE 2 EMISSION
REGULATIONS FOR SMALL NONROAD ENGINES. REFER
TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
An Emission Control Label is located on the engine. (This is an EXAMPLE ONLY, information on label varies by engine
FAMILY).
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.
8
DESCRIPTION
The ECHO product you purchased has been partially assembled for your convenience. Due to packaging restrictions,
installation of the plastic debris shield, nylon line head, and positioning of the front handle are 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.
* Some Echo units may be factory pre-assembled. The nylon line head, plastic debris shield, and mounting hardware
shown in the contents list are pre-assembled to the unit. No assembly tools are needed. The front handle may need to
be re-positioned for comfortable operation.
CONTENTS
______1 - Power Head / Drive Shaft Assembly
______1 - Operator's Manual
______1 - Safety Manual
______1 - Warranty Registration Card
______1 - Limited Warranty Statement
______1 - Safety Glasses
______1 - Echo Power Blend TM 2-stroke oil sample
* ___ 1 - Nylon Trimmer Head
* ___ 1 - T-wrench 17x19, P/N 89541008030
* ___ 1 - Locking tool, P/N 89751801131
* ___ 1 - Plastic shield
* ___ 1 - Shield plate
* ___ 3 - 5mm x 16mm screws (shield mtg.)
11
12
19
20
Safety
Video
5
7
8
9
6
18
17
13
16
14
15
1
4
3
2
10
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
1. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.
2. GRIP - Rear (right hand) handle.
3. THROTTLE TRIGGER LOCKOUT - This lever must be held during starting. 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 is loosely assembled to the Drive Shaft assembly and must be posi-
tioned for proper cutting attitude and operator comfort.
6. DRIVE SHAFT ASSEMBLY - Includes the Rear (right hand) Handle assembly, Gear Housing assembly, Front (loop,
left hand) Handle assembly, steel drive shaft and Safety Decal.
7. NYLON CUTTER HEAD - 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.
8. CUT-OFF KNIFE - Automatically trims line to the correct length: 5" 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.
9. 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. 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.
10. THROTTLE TRIGGER - Spring loaded to return to idle when released. During acceleration, press trigger gradually
for best operating technique.
11. SPARK PLUG - Provides spark to ignite fuel mixture.
12. TOP GUARD - Protects arm from the hot engine.
13. 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.
14. FUEL TANK - Contains fuel and fuel filter.
15. RECOIL STARTER HANDLE - 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.
16. FUEL TANK CAP - Covers and seals fuel tank opening.
17. PRIMER BULB - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carbure-
tor 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.
18. AIR CLEANER - Contains replaceable filter element.
19. CHOKE - The choke control is located on the top of the air filter case. Move choke lever to "Cold Start" ( ) to
9
close choke for cold start. Move choke lever to "Run" ( ) position to open choke.
20. 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.
10
SPECIFICATIONS
MODELS SRM-230, SRM-230S
Length------------------------------------------------------- 1795 mm (70.7 in.)
Width--------------------------------------------------------250 mm (9.84 in.)
Height ------------------------------------------------------- 250 mm (9.84 in.)
Weight (dry) w/Cutter Head (SRM-230) ----------------5.1 kg (11.2 lb.)
Weight (dry) w/Cutter Head (SRM-230S) ---------------4.9 kg (10.8 lb.)
Engine Type ------------------------------------------------ Air cooled, two-stroke, single cylinder gasoline engine
Bore---------------------------------------------------------- 32.2 mm (1.27 in.)
Stroke--------------------------------------------------------28.0 mm (1.10 in.)
Displacement -----------------------------------------------22.8 cc (1.39 cu. in.)
Exhaust ------------------------------------------------------Spark Arrestor Muffler
Carburetor --------------------------------------------------Zama diaphragm model RB w/purge pump
Ignition System --------------------------------------------Flywheel magneto, transistor control ignition type
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 ----------------------------------------0.58 lit. (19.6 US fl. oz.)
Starter System ---------------------------------------------- Automatic Rewind Starter
Clutch -------------------------------------------------------Centrifugal Type
Vibration Isolated System---------------------------------Rubber cushion on engine mount (heavy duty). Rubber grip on
front handle.
Operating Rod ---------------------------------------------- 25.0 mm aluminum tube
Drive Shaft (SRM- 230) ------------------------------------6.35 mm (1/4 in.) flexible shaft
Drive Shaft (SRM-230S) -----------------------------------7 mm (1/4 in.) steel shaft
Gear Case Ratio --------------------------------------------1.4:1 Reduction
Rotating Direction ----------------------------------------- Counter Clockwise; viewed from top
Cutter Head -------------------------------------------------Nylon line head (2-line) with .095 Crossfire™ Line capacity 6 m (20 ft.)
Handle------------------------------------------------------- Front - Loop and right rear handle with rubber grip
Shoulder Harness ------------------------------------------ Optional
Idle Speed---------------------------------------------------2,400 - 3,200 RPM
Wide Open Throttle Speed (W.O.T.) with
Nylon Line Head ------------------------------------------- 8,500 - 10,500 RPM
Wide Open Throttle Speed (W.O.T.) with Blade ------9,500 - 11,500 RPM
ASSEMBLY
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
11
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.
A
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.
B
12
FRONT HANDLE INSTALLA TION
Tools Required: Screwdriver
Parts Required: Front Handle Assembly
1 . 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, handle, 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.
A
B
C
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
99944200521 - Includes metal shield (A), shoulder
harness with hip pad (C), and U-Handles (D).
Choosing the Correct Blade
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
D
A
C
13
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.
14
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
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
15
Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline or
gasohol known to be good quality. Gasohol may contain up to 10%
Ethyl (grain) alcohol or 15% MTBE (methyl tertiary-butyl ether).
Gasohol containing methyl (wood) alcohol is NOT approved.
Two Stroke Oil - 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 ISOL-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.
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 the engine.
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.
Handling Fuel
W ARNING 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 outdoors
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
Stored two-stroke fuel may separate.
ALWAYS shake fuel container thoroughly before each use.
16
OPERATION
STARTING
COLD ENGINE
W ARNING 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.
A
B
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.
C
D
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
17
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.
W ARNING 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 (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.
A
C
D
NOTE
If engine does not start after 5 pulls, use Cold Start Procedure.
STOPPING ENGINE
1. Throttle
Release throttle and allow engine to return to idle before shutting
off engine.
2. Stop Switch
Move stop switch button (A) backward to STOP position.
W ARNING 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.
A
18
MAINTENANCE
Your ECHO trimmer is designed to provide many hours of trouble free service. Regular scheduled maintenance will help
your trimmer 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 the 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 servicing.
TM
ECHO offers REPOWER
are listed the various part numbers required for that task. See your ECHO dealer for these parts.
MAINTENANCE INTER VALS
Maintenance Kits and Parts to make your maintenance job easier. Below each task heading
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GRASS TRIMMER/BRUSH CUTTER
AIR FILTER
Level 1.
Tools Required: Cleaning brush 25 or 50 mm (1 or 2 in.)
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.
OPERATOR'S MANUAL
19
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.
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.
W ARNING DANGER
Fuel is VERY flammable. Use extreme care when mixing, storing or
handling.
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.
20
SPARK PLUG
Level 2.
Tools Required: T-Wrench, feeler gauge, soft metal 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.).
0.65 mm
(0.026 in.)
COOLING SYSTEMS CLEANING
Level 2.
Tools Required: 4 mm Hex Wrench, cleaning brush, 25 or 50 mm
(1 or 2 in.)
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.
GRASS TRIMMER/BRUSH CUTTER
1 . Remove spark plug lead.
2 . Remove two (2) muffler cover screws and muffler cover (A).
3 . Remove screw and top guard (B).
4 . Remove engine cover (C).
OPERATOR'S MANUAL
C
21
IMPORTANT
DO NOT use a metal scraper to remove dirt from the cylinder fins.
5 . Use brush to remove dirt from the cylinder fins.
6 . Remove grass and leaves from the grid between the recoil starter
and fuel tank.
7. Assemble components in reverse order.
B
A
EXHAUST SYSTEM
Spark Arrestor Screen
Level 2.
Tools Required: Cross Head Screwdriver, Soft Metal Brush,
4 mm Hex Wrench
Parts Required: Spark Arrestor Screen, P/N 14586240630
Gasket, P/N 14586642031
22
1 . Remove spark plug lead.
2 . Remove two (2) muffler cover screws and muffler cover (A).
3 . Place piston at Top Dead Center (TDC) to prevent carbon/dirt from
entering cylinder.
4 . Remove spark arrestor screen cover (B), gasket (C) and screen (D)
from muffler body.
5 . Clean carbon deposits from screen and 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.
A
D
C
B
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.
GRASS TRIMMER/BRUSH CUTTER
NOTE
Every unit is run at the factory and the carburetor is set in compliance with Emission Regulations. This carburetor does not have
acceleration and high speed adjustment needles.
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
page 10 "Specifications" of this manual. Turn idle screw (A)
clockwise to increase idle speed; counter clockwise to decrease idle
speed.
W ARNING DANGER
When carburetor adjustment is completed, the cutting attachment
should not move at idle, otherwise serious personal injury may
result.
OPERATOR'S MANUAL
23
A
LUBRICA TION
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
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
recoat with a thin coating [15 ml (1/2 oz.)] of ECHO® LUBE
grease.
TM
A
A
C
B
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.
B
24
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 firmly turn spool (B) CW (clockwise) until it
disengages from the inner drive. Pull spool from drum. DO NOT
push in on spool when turning.
B
A
A
B
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).
C
E
CC
B
D
FF
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.
G
I
B
H
G
GRASS TRIMMER/BRUSH CUTTER
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.
OPERATOR'S MANUAL
B
25
A
SHARPENING MET AL 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.
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.
26
TROUBLESHOOTING
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W ARNING DANGER
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark near an open
spark plug opening, otherwise serious personal injury may result.
GRASS TRIMMER/BRUSH CUTTER
OPERATOR'S MANUAL
STORAGE
W ARNING 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.
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.
27
W ARNING DANGER
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.
7 . Remove the spark plug and pour 7 cc (1/4 oz.) of
2. Place the stop switch (A) in the "STOP" 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.
fresh, clean, two-stroke engine oil into the cylinder
through the spark plug hole.
A.Place a clean cloth over the spark plug hole.
B . Pull the recoil starter handle 2-3 times to distribute
the oil inside the engine.
C. Observe the piston location through the spark
plug hole. Pull the recoil handle slowly until the
piston reaches the top of its travel and leave it
there.
8. Install the spark plug (do not connect ignition cable).
SERVICING INFORMATION
P ARTS
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. ____________
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.
www.echo-usa.com
DEALER?
Call
1-800-432-ECHO
or
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.
CONSUMER PRODUCT
SUPPORT
1-800-673-1558
8:30 - 4:30 Mon - Fri C.S.T.
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.
Safety Videos are available from your Echo dealer. A $5.00 shipping charge will be required for each video.
Available Parts Catalog
SRM-230/230S Serial Number 05001001 - 05999999 Part Number 99922203528
ECHO, INCORPORATED
400 OAKWOOD ROAD
LAKE ZURICH, IL 60047
www.echo-usa.com
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