Echo SRM-230 - 10-05 User manual

WARNING DANGER
Readrulesforsafeoperationandinstructionscarefully. ECHOprovidesanOperator's
ManualandaSafetyManual. Bothmustbereadandunderstoodforproperandsafe
operation.
Grass Trimmer/Brush Cutter
Operator'sManual
MODEL SRM - 230
SRM - 230S
X7532091204 X753000594
10/05

2
Copyright© 2005 By Echo, Incorporated
All Rights Reserved.
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'SMANUAL
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
Safety.................................................................................. 3
- Manual Safety Symbols and Important Information . 3
- International Symbols................................................. 3
- Personal Condition and Safety Equipment................. 3
- Equipment .................................................................. 6
Emission Control ................................................................ 6
Description ......................................................................... 7
Contents ............................................................................. 9
Assembly............................................................................ 9
- PlasticShield Installation............................................ 9
- Nylon Line Head Installation ................................... 10
- Front Handle Installation.......................................... 10
Operation.......................................................................... 11
- Operation with Blades.............................................. 11
- Fuel ........................................................................... 13
- StartingColdEngine ................................................. 14
- StartingWarmEngine ............................................... 15
- StoppingEngine........................................................ 15
Maintenance ..................................................................... 16
- SkillLevels................................................................ 16
- Maintenance Intervals .............................................. 16
- Air Filter ................................................................... 17
- Fuel Filter ................................................................. 17
- SparkPlug................................................................. 18
- CoolingSystem......................................................... 18
- Exhaust System ........................................................ 19
- Carburetor Adjustment Emission ............................. 20
- Lubrication................................................................ 21
- Nylon Line Replacement .......................................... 22
- Sharpening Metal Blades .......................................... 23
Troubleshooting................................................................ 24
Storage .............................................................................. 25
Specifications.................................................................... 26
ServicingInformation........................................................ 28
- Parts.......................................................................... 28
- Service ....................................................................... 28
- ECHO Consumer Product Support.......................... 28
- Warranty Card .......................................................... 28
- Additional or Replacement Manuals ........................ 28
Specifications,descriptionsandillustrative 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'SMANUAL 3
PERSONAL CONDITION AND SAFETY EQUIPMENT
INTERNATIONAL SYMBOLS
IMPORTANT
The enclosed message provides
information necessary for the protec-
tion of the unit.
NOTE
This enclosed message provides tips
for use, care and maintenance of the
unit.
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.
SAFETY
MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION
This symbol accompanied by the words WARNING and
DANGER calls attention to an act or condition that can lead
to serious personal injury to operator and bystanders.
The circle with the slash symbol means whatever is shown
within the circle is prohibited.
Hot
Surface
Carburetor
Adjustment
-Idlespeed
Carburetor
Adjustment
- High speed
mixture
DESCRIPTION SYMBOLSYMBOL
"WARNING, SEE
OPERATOR'S
MANUAL
Weareye,ear
and head
protection
Emergency
Stop Fueland oil
mixture
FingerSevering
Carburetor
Adjustment
-Lowspeed
mixture
Primer
Bulb
Ignition
ON/
OFF
Wear hand and
foot protection
Safety/Alert
Keepbystandersandhelpers
away15m(50ft.).
DONOTsmoke
nearfuel.
DONOTallow
flamesorsparks
nearfuel.
DESCRIPTION SYMBOL DESCRIPTION SYMBOL DESCRIPTION
Choke Control
"Cold Start"
Position
(ChokeClosed)
Choke Control
"Run"
Position
(ChokeOpen)
Do not use
blades.String
lineonly
WARNING DANGER
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.

4
Physical Condition
Your judgment and physical dexterity may not be good:
• if you are tired or sick,
• ifyouaretakingmedication,
• 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 unit.
Hand Protection
Wear no-slip, heavy-duty work gloves to improve your grip on the handle. 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.
• DONOTWEARSHORTS,
• DONOTWEARTIES,SCARFS,JEWELRY.
Wear protective hair covering to contain long hair.
Wear sturdy work shoes with nonskid soles;
• DONOTWEAROPENTOEDSHOES,
• DONOTOPERATEUNITBAREFOOTED.
Hot Humid Weather
Heavy protective clothing can increase operator fatigue which may lead to heat stroke. Schedule heavy work for early
morning or late afternoon hours when temperatures are cooler.
Extended Operation/Extreme Conditions
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 recom-
mended,becausetheminimumexposure,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 exer-
cises 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 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.

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 5
WARNING DANGER
Do not operate this product indoors or in inadequately ventilated
areas. Engine exhaust contains poisonous emissions and can
cause serious injury or death.
Read the Manuals
• Provide all users of this equipment with the Operator’s Manual and
Safety Manual for instructions on Safe Operation.
Clear the Work Area
• Spectators and fellow workers must be warned, and children and
animalspreventedfrom coming nearerthan15m (50 ft.)whiletheunit
is in use.
Keep a Firm Grip
• Hold the front and rear handles with both hands, with thumbs and
fingers encircling the handles.
Keep a Solid Stance
• Maintain footing and balance at all times. Do not stand on slippery,
uneven or unstable surfaces. Do not work in odd positions or on
ladders. Do not over reach.
Avoid Hot Surfaces
• Keep exhaust area clear of flammable debris. Avoid contact during
andimmediatelyafteroperation.
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
riskfordeveloping a RepetitiveStressInjury(RSI). An extremeRSIcondition is CarpalTunnelSyndrome(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 move-
ment.
• Do exercise 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.

6
EQUIPMENT
WARNING DANGER
Use only ECHO approved attachments. Serious injury may result from the use of a non-approved attachment
combination. ECHO, INC. will not be responsible for the failure of cutting devices, attachments or accessories which
have not been tested and approved by ECHO. Read and comply with all safety instructions listed in this manual and
safety manual.
• Check unit for loose/missing nuts, bolts, and screws. Tighten and/or
replace as needed.
• Inspect fuel lines, tank, and area around carburetor for fuel leaks. DO
NOT operate unit if leaks are found.
• Inspect shield for damage and ensure that the cut-off knife 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.
AnEmissionControlLabelislocated on the engine. (This
isanEXAMPLEONLY,informationonlabelvariesby
engineFAMILY).
EMISSION CONTROL
EPA Phase 2
The emission control system for this engine is EM/TWC (Engine Modification and Catalyst).
PRODUCTEMISSIONDURABILITY
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.
IMPORTANTENGINEINFORMATION
ENGINE FAMILY: 5EHXS.0234KA DISPLACEMENT: 22.8 cc
EMISSION COMPLIANCE PERIOD: 300 Hours
THIS ENGINE MEETS U.S. EPA PH2 AND 2005 - 2006
CALIFORNIA EMISSION REGULATIONS FOR SORES. REFER
TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS
AND ADJUSTMENTS.

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 7
11
13
14
15
16
17
18
12
19
1
2
3
4
5
6
7
8
910
P/N 89016006361
Hot Decal (near muffler)
P/N 89016054130
DESCRIPTION
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 ORDER-
INGinstructionsforspecificinformation.
P/N X505001930
Shaft Decal
P/N 89016054130
P/N X505001930

8
1. POWERHEAD-IncludestheEngine,Clutch,FuelSystem,IgnitionSystemandRecoilStarter.
2. GRIP-Rear(righthand)handle.
3. THROTTLETRIGGERLOCKOUT-Thislevermustbeheldduringstarting.Operationofthethrottletriggeris
prevented unless throttle trigger lockout lever is engaged.
4. STOPSWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to
RUN,BACKtoSTOP.
5. FRONT HANDLE - The Front (loop) handle is loosely assembled to the Drive Shaft assembly and must be posi-
tioned for proper control and operator comfort.
6. DRIVESHAFTASSEMBLY-IncludestheRear(righthand)Handleassembly,GearHousingassembly,Front(loop,
left hand) Handle assembly, steel drive shaft and Safety Decal.
7. NYLONCUTTERHEAD-Containsreplaceablenylontrimminglinethatadvanceswhenthetrimmerheadistapped
against the ground while the head is turning at normal operating speed.
8. CUT-OFFKNIFE -Automaticallytrimslineto thecorrect length:5" afterhead istappedontheground.Iftrimmeris
operated without a cut-off knife the line will become too long, the engine will overheat and engine damage may occur.
9. PLASTICDEBRISSHIELDASSEMBLY-Includedinplasticbag(co-pack). MUSTbeinstalledonunitbeforeuse,
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 opera-
tion. This shield must be replaced with the steel shield for blade use.
10. THROTTLETRIGGER-Springloadedtoreturntoidlewhenreleased. Duringacceleration,presstriggergradually
for best operating technique.
11. SPARKPLUG-Providessparktoignitefuelmixture.
12. TOPGUARD-Protectsarmfromthehotengine.
13. SPARKARRESTOR-CATALYTICMUFFLER/MUFFLER-Themufflerorcatalyticmufflercontrolsexhaustnoise
and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep
exhaustareaclearofflammabledebris.
14. FUELTANK-Containsfuelandfuelfilter.
15. RECOILSTARTERHANDLE-Pullhandleslowlyuntilstarterengages,thenquicklyandfirmly. Whenengine
starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.
16. FUELTANKCAP-Coversandsealsfueltankopening.
17. PRIMERBULB -Pumpingprimerbulbbeforestartingenginedrawsfreshfuelfromthefueltankprimingthecarbure-
tor for starting. Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an
additional4 or5times.
18. AIRCLEANER-Containsreplaceablefilterelement.
19. CHOKE - The choke control is located on the top of the air filter case. Move choke lever to "Cold Start" ( ) to
close choke for cold start. Move choke lever to "Run" ( ) position to open choke.

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 9
CONTENTS
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.
______1 - Power Head / Drive Shaft Assembly
______1 - Operator's Manual
______1 - Safety Manual
______1 - Warranty Registration Card
______1 - LimitedWarrantyStatement
______1 - Safety Glasses
______1 - EchoPowerBlendTM 2-stroke oilsample
* ___ 1 - NylonTrimmerHead
* ___ 1 - T-wrench17x19,P/N89541008030
* ___ 1 - Lockingtool,P/N89751801131
* ___ 1 - Plastic shield
* ___ 1 - Shieldplate
* ___ 3 - 5mmx16mmscrews(shieldmtg.)
ASSEMBLY
Tools Required: Screwdriver,HeadLockingTool
Parts Required: PlasticShield,ShieldPlate,three(3)5mmx16mm
screws, Nylon Line Head, Front Handle Assembly
PLASTIC SHIELD INSTALLATION
(For Nylon Line Operation)
NOTE
The plastic shield is for use with the Nylon Line Head only.
Install Metal Shield when using plastic or metal blades.
1. Remove plastic sleeve and upper plate (A) from PTO shaft.
2. Install the shield on the bottom of the bearing housing flange.
3. Place shield plate (B) on shield, align holes and install three (3)
5x16mmscrews.
4. Install upper plate (A).
B
A

10
C
NYLON LINE HEAD INSTALLATION
(Use with Plastic Shield)
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 (C).
3. Thread line head onto shaft by turning it counter clockwise until
head is tight against upper plate.
4. Remove head locking tool.
MIN
SPACING
FRONT HANDLE ADJUSTMENT
NOTE
Label shows minimum spacing for front handle location.
1. Position front handle for comfortable operation and secure screws.

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 11
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.
AB
Grass/Weed Blades Require:
Install Blade Conversion Kit, Includes metal shield
(A), barrier bar (B), and shoulder harness (C).
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.
A
D
Brush/Clearing Blades Require:
Install U-Handle / Blade Conversion Kit, - Includes
metal shield (A), shoulder harness with hip pad (C),
andU-Handles(D).
Choosing the Correct Blade
WARNING DANGER
The type of Blade used MUST be matched to the type and size of material cut. An improper or dull blade can cause
serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick-out and injury to yourself
and bystanders.
C
C

12
Plastic/Nylon Blades may be used where ever the nylon line head
is used. DO NOT use this blade for heavy weeds or brush!
8ToothWeed/GrassBlade(P/N69600120331)isdesignedforgrass,
garden debris and thick weeds. DO NOT use this blade for brush or
heavywoodygrowth,19mm(3/4in.)diameterorlarger.
80ToothBrushBlade(P/N69500120331)isdesignedforcuttingbrush
andwoodygrowth up to64mm (2-1/2in.) diameter.
22ToothClearingBlade(99944200130)isdesignedfordensethickets
andsaplings upto 64mm(2-1/2in.)diameter.
UseShoulder/WaistHarness(P/N99944200200)Useofthe Shoulder/
WaistHarnessisrecommendedforALLTrimmer/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.

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 13
oitaR1:05-xiMliOotleuF
.S.UCIRTEM
SAGLIOSAGLIO
snollaG.zo.lFretiL.cc
1
2
5
6.2
2.5
31
4
8
02
08
061
004
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.
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, airtight container. Store
in a well-ventilated, unoccupied building,
away from sparks and flames.
IMPORTANT
Storedfuelages. Do notmixmorefuel
than you expect to use in thirty (30)
days, ninety (90) days when a fuel
stabilizerisadded.
IMPORTANT
Stored two-stroke fuel may separate.
ALWAYS shake fuel container thor-
oughly before each use.
FUEL
Fuel Requirements
Gasoline-Use 89Octane[R+M/2](mid gradeorhigher) gasoline
known to be good quality. Gasoline may contain up to 15% MTBE
(methyl tertiary-butyl ether). Gasohol containing methyl (wood) alcohol
is NOT approved.
TwoStrokeOil-Atwo-strokeengineoilmeetingISO-L-EGD(ISO/CD
13738)andJ.A.S.O.FC Standards must beused. Echo brand premium
Power Blend TM Universal 2-Stroke Oil meets these standards. Engine
problems due to inadequate lubrication caused by failure to use an
ISO-L-EGDandJ.A.S.O.FCcertifiedoil,suchasEchopremiumPower
BlendTM,will voidthetwo-stroke enginewarranty. (Emissionrelated
parts only are covered for two years, regardless of two-stroke oil used,
per the statement listed in the Emission Defect Warranty Explanation.)
IMPORTANT
EchopremiumPowerBlendTM Universal2-StrokeOilmaybemixed
at 50:1 ratio for application in all Echo engines sold in the past
regardless of ratio specified in those manuals.
Handling Fuel
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling or serious personal injury may result.
• Use an approved fuel container.
• DONOTsmokenearfuel.
• DONOTallow flamesorsparks nearfuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps
slowly allowing pressure to equalize.
• NEVERrefuelaunitwhentheengineisHOTorRUNNING!
• DONOTfillfueltanksindoors.ALWAYS fill fuel tanks outdoors
over bare ground.
•DONOToverfillfueltank. Wipeupspillsimmediately.
• Securely tighten fuel tank cap and close fuel container after
refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or
operate unit until leakage is repaired.
• Move at least 3m (10 ft.) fromrefueling location before starting
the engine.
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. Addremaininggasoline, closefuelcontainer,andremix.

14
STARTING COLD ENGINE
WARNING DANGER
The attachment will operate immediately when the engine starts and
could result in loss of control and possible serious injury. Keep
movable parts of the attachment off the ground and away from
objects that could become entangled or thrown.
1. Stop Switch
Move stop switch button (A) forward away from the STOP
position.
2. Choke
Move choke lever (B) to Cold Start Position ( ).
3. Primer
Pumpprimerbulb(C) until fuel is visibleandflowsfreelyin the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
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
enginefires(ormaximumfive[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.
B
C
D
A

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 15
STARTING WARM ENGINE
The starting procedure is the same as Cold Start except DO NOT close
the choke, and do not depress throttle trigger to wide open position.
WARNING DANGER
The attachment should not move at idle, otherwise serious personal
injurymayresult.
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
Pumpprimerbulb(C) until fuel is visibleandflowsfreelyin the
clear fuel tank return line. Pump bulb an additional 4 or 5 times.
3. Recoil Starter
Lay the unit on a flat, clear area and pull the recoil starter handle
(D) until the engine fires.
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.
WARNING DANGER
If engine does not stop when stop switch is moved to STOP
position, close choke - COLD START position - to stall engine.
HaveyourECHOdealerrepair stop switch before using trimmer
again.
D
C
A
A

16
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
Level1= Easy to do. Most required tools come with unit.
Level2= Moderate difficulty. Some specialized tools may be required.
Level3= Experiencerequired.Specializedtoolsarerequired.ECHOrecommendsthat
the unit be returned to your ECHO dealer for servicing.
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Below each task heading
are listed the various part numbers required for that task. See your ECHO dealer for these parts.
MAINTENANCE INTERVALS
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GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 17
AIR FILTER
Level1.
Tools Required: Cleaningbrush25or50mm(1or2in.)
Parts Required: 90008REPOWERTMAIR&FUELFILTERKIT.
1. Close choke (Cold Start Position [ ]). This prevents dirt from
entering the carburetor throat when the air filter is removed.
Brushaccumulateddirtfromtheair cleaner area.
2. Removetheaircleaner cover. Lightly brush debrisfromfilter. If
element is fuel soaked, deformed, and very dirty, replace.
3. If element can be reused, be certain it:
•still fits the cavity in the air cleaner cover.
•is installed with the original side out.
FUEL FILTER
Level1.
Tools Required: 200-250mm(8-10in.)lengthofwire with one end bent
into a hook, clean rag, funnel, and an approved fuel
container.
Parts Required: 90008REPOWERTMAIR&FUELFILTERKIT.
WARNING DANGER
FuelisVERYflammable.Useextremecarewhenmixing,storingor
handling.
1. Use a clean rag to remove loose dirt from around fuel cap and
emptyfueltank.
2. Use the “fuel line hook” to pull the fuel line and filter from the
tank.
3. Remove the filterfromtheline and install thenewfilter.

18
SPARK PLUG
Level2.
Tools Required: T-Wrench, feeler gauge, soft metal brush.
Parts Required: REPOWERTM Tune-UpKit P/N90074C
IMPORTANT
UseonlyNGKBPM-8Ysparkplug(BPMR-8YinCanada)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.Remainingsandwilldamageengine.
3. Adjust spark plug gap by bending outer electrode.
4. Tightensparkplugto150-170kg/cm(130-150in.lb.).
COOLING SYSTEM
Level2.
Tools Required: 4mmHexWrench,cleaningbrush,25or50mm
(1or2in.)
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.
0.65 mm
(0.026 in.)

GRASS TRIMMER/BRUSH CUTTER
OPERATOR'SMANUAL 19
1. Remove spark plug lead.
2. Remove two(2) mufflercover screwsand mufflercover (A).
3. Remove screw and top guard (B).
4. Removeenginecover(C).
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.
EXHAUST SYSTEM
Spark Arrestor Screen
Level2.
Tools Required: Cross Head Screwdriver, Soft Metal Brush,
4mmHexWrench
Parts Required: SparkArrestorScreen,Gasket
A
B
C

20
1. Remove spark plug lead.
2. Remove two(2) mufflercover screwsand mufflercover (A).
3. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from
enteringcylinder.
4. Remove spark arrestor screen cover (B), gasket (C) and screen (D)
frommufflerbody.
5. Clean carbon deposits from muffler components.
NOTE
When cleaning carbon deposit, be careful not to damage the
catalylicelementinsidemuffler.
6. Replace screen if it is cracked, plugged or has holes burned
through.
7. Assemble components in reverse order.
Cylinder Exhaust Port
Level3
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
importantmaintenanceservice.
CARBURETORADJUSTMENT
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.
Level2.
Tools Required: Screwdriver,Tachometer(ECHOP/N99051130017).
Parts Required: None.
BC
D
A