Echo Trimmer SRM 2100SB SRM 2400SB User Manual

Grass Trimmer/Brush Cutter  
Operator's Manual  
MODELS, Type 1E  
SRM - 2100SB  
Serial Number 0533424 & Up  
SRM - 2400SB  
Serial Number 0563001 & Up  
WARNING  
DANGER  
Readrulesforsafeoperationandinstructionscarefully. ECHOprovidesan  
Operator's Manual with this unit and a separate Operator's Manual and Safety  
Manual(ifavailable)withtheattachment. Allmanualsmustbereadandunder-  
stood for proper and safe operation. Failure to do so could result in serious injury.  
89861056733  
12/01  
X7532277103  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
3
MANUAL SAFETY SYMBOLS AND IMPORTANT INFORMATION  
Throughout this manual and on the product itself, you will find  
safety alerts and helpful, information messages preceded by  
symbols or key words. The following is an explanation of those  
symbols and key words and what they mean to you.  
This symbol accompanied by the words WARNING and  
DANGER calls attention to an act or condition that can lead  
to serious personal injury to operator and bystanders.  
IMPORTANT The enclosed message  
provides information necessary for the  
protection of the unit.  
The circle with the slash symbol means whatever is shown  
within the circle is prohibited.  
NOTE This enclosed message provides tips for  
use, care and maintenance of the unit.  
SAFETY  
DECALS  
Locate these safety decals on your unit. The complete unit illustration,  
found in the "DESCRIPTION" section, will help you locate them. 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  
orderedfromyourECHOdealer. SeePARTSORDERINGinstructions  
forspecificinformation.  
DEBRIS SHIELD DECAL  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4
Shaft Decal  
P/N 89016844830  
WARNING  
DANGER  
• This unit can be dangerous and cause serious injury if improperly  
used. To reduce injury risk to operator, helpers and bystanders,  
read and understand the Operator's and Safety manuals.  
• Blindness can occur from objects that are thrown or ricocheted even  
with shield in place. Operators, helpers and bystanders must wear  
ANSI Z87.1 approved eye protection.  
• Always wear hearing protection when operating unit.  
• Prevent accidental contact with unit and any cutting attachment.  
Maintaina15M(50ft.)radius,DANGERZONEsurroundingthe  
operator. ONLY the operator, dressed in proper protective clothing  
shouldbeintheDANGERZONE.  
• BewareofKICKOUT(bladethrust)whenusingblades. Special  
precautions are necessary for blade operation, see your Operator's  
and Safety Manuals. ONLY install ECHO approved blades on  
Brush Cutters (SRM) models equipped with proper blade shield,  
U-handles, harness, blade collar, nut and cotter pin.  
• Blade/Cutting attachment does not stop immediately after releasing  
throttle. Keep hands and feet clear of blade/cutting attachment  
unless engine is shut off and cutting attachment is not moving.  
• INSPECTBLADESBEFOREUSE.  
• DONOTUSEDAMAGED,CRACKED,BENT,DULLOR  
IMPROPERLYSHARPENEDBLADES.  
• 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  
yourECHOdealerorbywriting:ECHO,INCORPORATED,400  
OAKWOODRD.,LAKEZURICH,IL 60047.  
INTERNATIONAL SYMBOLS  
Symbol  
description/application  
Symbol  
description/application  
Symbol  
description/application  
Symbol  
description/application  
Symbol form/shape  
Symbol form/shape  
Symbol form/shape  
Symbol form/shape  
Hot  
Surface  
"WARNING, SEE  
OPERATOR'S  
MANUAL  
Carburetor adjustment  
- High speed mixture  
Primer Bulb  
Fuel and oil mixture  
Ignition  
ON/OFF  
Carburetor adjustment  
- Idle speed  
Wear eyes, ears and  
head protection  
Carburetor adjustment  
- Low speed mixture  
Engine choke  
control.  
Finger Severing  
Emergency stop  
Do not operate  
without guards and  
shields in place.  
Wear hand and  
foot protection  
WARNING  
Blade and string  
line capable  
BEWARE  
- Thrown,  
Ricochet  
objects  
Keep bystanders and helpers  
away 15 m (50 ft.).  
Do not exceed  
10,000 RPM.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
5
SAFETY INSTRUCTIONS  
PERSONAL CONDITION AND SAFETY EQUIPMENT  
WARNING  
DANGER  
Trimmer/Brush Cutter users risk injury to themselves and others if the trimmer/brush cutter is used improperly  
or safety precautions are not followed. Proper clothing and safety gear must be worn when operating a  
trimmer/brushcutter.  
Eye Protection  
Wear eye protection that meets ANSI Z87.1 or CE  
requirements whenever you operate the trimmer.  
Proper Clothing  
Wear snug fitting, durable clothing;  
• Pants should have long legs, shirts with long  
sleeves.  
• DONOTWEARSHORTS,  
• DONOTWEARTIES,SCARVES,JEWELRY.  
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.  
Wear sturdy work shoes with non-skid soles;  
• DONOTWEAROPENTOEDSHOES,  
• DONOTOPERATEUNITBAREFOOTED.  
Hearing Protection  
ECHO recommends wearing hearing protection whenever  
unit is used.  
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.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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). AnextremeRSIconditionisCarpalTunnelSyndrome  
(CTS), which could occur when your wrist swells and squeezes a vital  
nerve that runs through the area. Some believe that prolonged exposure  
to vibration may contribute to CTS. CTS can cause severe pain for  
months or even years.  
To reduce the risk of RSI/CTS, do the following:  
• Avoid using your wrist in a bent, extended, or twisted position.  
Instead, try to maintain a straight wrist position. Also, when grasp-  
ing, use your whole hand, not just the thumb and index finger.  
• Take periodic breaks to minimize repetition and rest your hands.  
• Reduce the speed and force with which you do the repetitive  
movement.  
• Do exercises to strengthen the hand and arm muscles.  
• Immediately stop using all power equipment and consult a doctor if  
you feel tingling, numbness, or pain in the fingers, hands, wrists, or  
arms. The sooner RSI/CTS is diagnosed, the more likely permanent  
nerve and muscle damage can be prevented.  
EQUIPMENT  
WARNING  
DANGER  
Use only ECHO approved attachments. Serious injury may result from the use of a non-approved attachment combi-  
nation. 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  
andimmediatelyafteroperation.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
7
SAFE OPERATION  
WARNING  
DANGER  
Do not operate this product indoors or in inadequately ventilated  
areas. Engine exhaust contains poisonous emissions and can cause  
serious injury or death.  
PROVIDEALLOPERATORSOFTHISEQUIPMENTWITHTHE  
OPERATOR'SMANUALANDINSTRUCTIONSFORSAFEOPERA-  
TION.  
KeepAFirmGrip  
• Hold the front and rear handles with both hands with thumbs and  
fingers encircling the handles  
KeepASolidStance  
• 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.  
EMISSION CONTROL  
Type 1E Models  
IMPORTANTENGINEINFORMATION  
ENGINE FAMILY: TEH024UB24RA  
The emission control system for this engine is EM (Engine Modifica-  
tion).  
DISPLACEMENT: 23.6 CC  
THIS ENGINE MEETS U.S. EPA PH1 EMISSION  
REGULATIONS FOR SMALL NON ROAD ENGINES.  
REFER TO OWNER'S MANUAL FOR MAINTENANCE  
SPECIFICATIONS AND ADJUSTMENTS.  
EmissionControlLabellocatedonEngine  
(EXAMPLEONLY,informationonlabelvariesbyFAMILY).  
DESCRIPTION  
The ECHO product you purchased has been factory pre-assembled for your convenience. Due to packaging restrictions,  
shield installation and other 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.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
8
CONTENTS  
Contents List  
MODELS  
Items  
SRM-2100SB  
SRM-2400SB  
1 - Power Head w/Upper Drive Shaft Assembly  
1 - Lower Drive Shaft Assembly  
1 - Plastic Bag (co-pack)  
- 1, Operator's Manual  
- 1, Safety Manual  
- 1, Warranty Registration Card  
- 1, Limited Warranty Statement  
- 1, Plastic shield  
- 1, Tool Bag  
--1, 8 mm x 10 mm wrench  
--1, scrench  
--1, locking tool  
- 1, Nylon Trimmer Head  
- 1, Safety Glasses  
- 1, 2-Stroke Oil Sample, 2.6 oz.  
- 1, Front Handle (L.H.) Assembly  
-- 1, Plastic Bag  
---1, shield plate  
--- 3, 5 mm x 15 mm screws (shield mounting)  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
9
22  
13  
14  
21  
20  
15  
19  
16  
17  
18  
8
6
5
7
4
3
2
1
9
11  
10  
12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
10  
1. POWER HEAD- Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.  
2. GRIP - Rear (right hand) handle.  
3. THROTTLETRIGGERLOCKOUT-Operationofthethrottletriggerispreventedunlessthrottletriggerlockoutleveris  
engaged.  
4. STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to RUN,  
BACKtoSTOP.  
5. UPPERDRIVESHAFTASSEMBLY-IncludestheRear(RightHand)GripAssembly,Front(LeftHand)HandleAssem-  
bly, Upper Flexible Drive Cable, Drive Shaft Assembly Coupler and Power Head.  
6. FRONT HANDLE - The front (loop) handle must be assembled to the Upper Drive Shaft Assembly (some models) and  
must be positioned for proper cutting attitude and operator comfort.  
7. DRIVESHAFTCOUPLER-IncludesLocatorPinandClampingKnob.  
8. NYLONCUTTINGATTACHMENT-Containsreplaceablenylontrimminglinethatadvanceswhenthetrimmerheadis  
tapped against the ground while the head is turning at normal operating speed.  
9. CUT-OFF KNIFE - Automatically trims line to the correct length: 5 in. after head is tapped on the ground. If trimmer is  
operated without a cut-off knife the line will become too long, the engine will overheat and engine damage may occur.  
10. PLASTICDEBRISSHIELDASSEMBLY-Includedinplasticbag(co-pack). MUSTbeinstalledonunitbeforeuse, see  
Assembly Instructions. Shield assembly includes the Cut-Off Knife and Safety Decal. Mounts on the Gear Housing  
Assembly just above the cutting attachment. Helps protect the operator by deflecting debris produced during the trimming  
operation. This shield must be replaced with the steel shield for blade use.  
11. LOWERDRIVESHAFTASSEMBLY-IncludestheDebrisShieldAssembly,GearHousingAssembly,LowerFlexible  
Drive Cable, Nylon Cutting Attachment and Safety Decal.  
12. THROTTLETRIGGER-Springloadedtoreturntoidlewhenreleased. Duringacceleration, presstriggergraduallyfor  
best operating technique.  
13. ARM REST - Provides arm rest during operation and protects arm from the hot engine.  
14. SPARKPLUG-Providessparktoignitefuelmixture.  
15. MUFFLER/SPARKARRESTOR -Themufflercontrolstheexhaustnoisewhilethesparkarrestorpreventshot, glowing  
particles of carbon from leaving the muffler where they could possibly start a fire.  
16. FUELTANK-Containsfuelandfuelfilter.  
17. RECOILSTARTERHANDLE-Pullrecoilstarterhandleslowlyuntilstarterengages, thenquicklyandfirmly. When  
engine starts, return handle slowly. DO NOT let handle snap back or damage to unit will occur.  
18. FUEL TANK CAP - Covers and seals fuel tank opening.  
19. PRIMER BULB - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carburetor for  
starting. Pump the bulb 10 times until fuel is visible in clear fuel return line.  
20. AIRCLEANER-Containsreplaceablefilterelement.  
21. CHOKE - The choke control lever is located on the top of the air filter case. Move lever to "COLD START" to close choke  
for cold starting. Move lever to the "RUN" position to open choke.  
22. SAFETYVIDEO-(Notincludedwithunit)P/N99922202540Englishversiononlyisavailableatacostof$5.00fromECHO,  
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.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
11  
SPECIFICATIONS  
MODEL  
SRM-2100SB  
SRM-2400SB  
1500 mm (59 in.)  
Shaft Length  
Unit Width  
Unit Height  
330 mm (13.0 in.)  
300 mm (11.8 in.)  
5.4 kg (11.9 lb.)  
360 mm (12.4 in.)  
5.6 kg (12.4 lb.)  
Weight (dry) w/cutting  
attachment  
Engine Type  
Air cooled, two-stroke, single cylinder gasoline engine  
Bore  
32.2 mm (1.27 in.)  
34.0 mm (1.34 in.)  
26.0 mm (1.04 in.)  
Stroke  
Displacement  
Exhaust System  
21.2 cc (1.29 cu. in.)  
23.6 cc (1.44 cu. in.)  
Spark Arrestor Muffler  
Carburetor  
Zama Diaphragm model C1U w/purge  
Walbro Diaphragm model WYJ w/purge  
NGK BPM-7Y Gap 0.65 mm (0.026 in.)  
Ignition System  
CDI (capacitor discharge ignition)  
Spark Plug  
Fuel  
NGK BPM-7A Gap 0.65 mm (0.026 in.)  
Mixed (Gasoline and Two-stroke Oil)  
Fuel/Oil Ratio  
50:1 ECHO High Performance, two-stroke air cooled engine oil  
89 Octane unleaded. DO NOT use fuel containing methyl alcohol,  
more than 10% ethyl alcohol or 15% MTBE.  
Gasoline  
Oil  
50:1 ECHO High Performance, two-stroke air cooled engine oil  
0.4 lit. (14.0 US fl. oz.)  
Fuel Tank Capacity  
Starter System  
Automatic Recoil Starter  
Clutch  
Centrifugal Type  
Drive Shaft (upper & lower)  
Rotating Direction  
1/4 in. Flex Shaft  
Counter clockwise viewed from top  
Cutting Attachment  
Handles*  
Nylon line head (2-line) with .095 in. Cross FireTM line capacity 6 m (20 ft.)  
Front - Loop, Rear - Grip, when operating with standard line head  
Shoulder Harness  
Idle Speed (RPM)  
Optional  
2700 - 3300  
Wide Open Throttle  
Speed (**RPM)  
8300 - 9500  
* Install and use U-Handle when operating any model with steel blade.  
**The RPM range shown applies for all attachments. Refer to your attachment Operator's Manual "Specifications"  
section for proper RPM specifications.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12  
ECHO APPROVED OPTIONAL ATTACHMENTS  
WARNING  
DANGER  
• Use only ECHO approved attachments for Pro Attachment SeriesTM models. Serious injury may result from the use  
of non-approved attachment combinations. Read and comply with all safety instructions listed in this manual and  
attachmentmanual.  
• ECHO, INC. will not be responsible for the failure of cutting devices, attachments, or accessories which have not  
been tested and approved by ECHO for use with this Pro Attachment SeriesTM unit.  
RECOMMENDED OPTIONAL ATTACHMENTS  
• PAS Pro SweepTM  
• PAS Pro ThatchTM  
• PAS Articulating Hedge Clipper Model99944200590  
• PAS Rapid LoaderTM  
• PAS Brush Cutter  
Model 99944200550  
Model99944200560  
• PAS Edger  
PASCultivator  
PASTrimmer  
• PAS Hedge Clipper  
• PAS Power PrunerTM  
Model 99944200470  
Model 99944200510  
Model 99944200540  
Model 99944200480  
Model 99944200530  
Model 99944200610  
Model99944200600  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
13  
ASSEMBLY  
B
POWER HEAD SHAFT/LOWER SHAFT ASSEMBLY  
D
Tools Required: None  
Parts Required: Split Boom Attachment Assembly  
1. Set Power Head/Shaft Assembly on a level surface.  
A
2. Pull locator pin (A) out, and turn counter-clockwise 1/4 turn to lock-  
out position.  
B
A
3. Carefully fit attachment drive shaft assembly into coupler (B) to  
decal assembly line (C), making sure that the inner lower drive shaft  
engages into the square upper drive shaft socket.  
D
NOTE  
Lower bearing housing and head assembly must be in line with the  
engine.  
4. Rotate locator pin (A) 1/4 turn clockwise to engage lower shaft  
hole. Insure locator pin is fully engaged by twisting lower drive  
shaft. Locator pin should snap flush in coupler. Full engagement will  
prevent further shaft rotation.  
C
5. Secure lower shaft assembly to coupler by tightening clamping  
knob(D).  
PLASTIC SHIELD INSTALLATION  
(ForNylonLineOperation)  
Tools Required: Screwdriver.  
Parts Required: PlasticShield,ShieldPlate,three(3)5mmx15mm  
screws.  
NOTE  
The plastic shield is for use with the Nylon Line Head only. Install  
Metal Shield when using plastic or metal blades.  
1. Snap the shield on the bottom of the bearing housing flange.  
2. Place shield plate on shield, align holes and install three (3) screws.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
14  
NYLON LINE HEAD INSTALLATION  
Tools Required: Head Locking Tool  
Parts Required: NylonLineHead.  
1. Align locking hole in upper plate (B) with notch in edge of gear  
housing and insert head locking tool (A).  
2. Remove plastic sleeve from P.T.O. shaft (C).  
3. Be sure upper plate (B) remains on P.T.O. shaft.  
4. Thread line head onto P.T.O. shaft by turning it counter clockwise  
until head is tight against upper plate (B).  
5. Removelockingtool(B).  
FRONT HANDLE INSTALLATION  
Tools Required: Screwdriver.  
Parts Required: Front Handle Assembly  
1. Assemble front handle on drive shaft, DO NOT tighten screws yet.  
2. Position front handle for comfortable operation and secure screws.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
15  
PRE - OPERATION  
OPERATION WITH BLADES  
Preparing the Trimmer/Brush Cutter for Blade Use  
WARNING  
DANGER  
Blade use DEMANDS specific Brush Cutter configuration. Operation without specified shield and harness can result  
in serious personal injury. Follow installation instructions included in optional kits.  
PlasticandNylonBladesRequire:  
"BladeConversionKit,"P/N99922200415  
(metal shield [A], shoulder harness [B],  
andBarrierBar[C]).  
B
A
C
Steel/MetalBladesRequire:  
SRM-2100SB"CombinationBlade"and  
"U-HandleKit"P/N99944200451(D).  
SRM-2400SB"CombinationBlade"  
and"U-HandleKit"P/N99944200521(D).  
D
Choosing the Correct Blade  
WARNING  
DANGER  
The type of Blade used MUST be matched to the type and size of material cut. An improper or dull blade can cause  
serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick out and injury to yourself  
and bystanders.  
Plastic/Nylon Blades may be used where ever the nylon line head  
is used. DO NOT use this blade for heavy weeds or brush!  
Download from Www.Somanuals.com. All Manuals Search And Download.  
16  
8ToothWeed/GrassBladeP/N69600120331isdesignedforgrass,  
garden debris and thick weeds. DO NOT use this blade for brush or  
heavy woody growth, 3/4" in. (19 mm) diameter or larger.  
Brush/Clearing Blade P/N 69500120331 is designed for cutting brush  
and woody growth up to 3" in. (76 mm) diameter.  
UseShoulder/WaistHarness P/N99944200200TheShoulder/Waist  
Harness when used in a trimming operation with nylon line head  
suspends the trimmer from the operator's shoulder and reduces operator  
fatigue.  
During blade operation, the same fatigue reduction is achieved. Safety  
to the operator is also enhanced by preventing blade contact with the  
operator's hands and feet by restricting trimmer movement.  
NOTE  
In case of Emergency, pull up on the Quick Release Collar to  
disconnect the trimmer from the harness.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
17  
FUEL  
Fuel Requirements  
Gasoline - Use 89 Octane [R + M ] (mid grade or higher) gasoline known  
to be good quality. Gasoline may contain up to 15% MTBE (methyl  
tertiary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT  
approved.  
2
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  
orderinginformation.  
TwoStrokeOil-Atwo-strokeengineoilmeetingISO-L-EGD(ISO/CD  
13738) and J.A.S.O. FC Standards, must be used. Echo brand Premium  
50:1 oil meets these standards. Engine problems due to inadequate  
lubrication caused by failure to use an ISO-L-EGD and J.A.S.O. FC  
certifiedoil, suchasEchoPremium50:1Two-strokeOil, willvoidthe  
two-stroke engine warranty. (Emission related parts only are covered  
for two years, regardless of two-stroke oil used, per the statement listed  
intheEPAPhaseI/CaliforniaEmissionDefectWarrantyExplanation.)  
After Refueling  
Wipe any spilled fuel from the unit.  
Move at least 3 m (10 ft.) from refueling  
location before starting.  
After use  
DO NOT store a unit with fuel in its tank.  
Leaks can occur. Return unused fuel to  
an approved fuel storage container.  
IMPORTANT  
EchoPremium2-StrokeOilmaybemixedat50:1ratioforapplica-  
tion in all Echo engines sold in the past regardless of ratio speci-  
fied in those manuals.  
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.  
Mixing Instructions  
1. Fill an approved fuel container with half of the required amount  
of gasoline.  
2. Add 2-stroke oil to gasoline.  
3. Close container and shake to mix oil with gasoline.  
4. Addremaininggasolineandremix.  
5. Install fuel container cap and wipe any spilled fuel from container  
and surrounding area.  
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  
WARNING  
DANGER  
IMPORTANT  
FuelisVERYflammable.Useextremecarewhenmixing,storingor  
handling or serious personal injury may result.  
• Use an approved fuel container.  
Stored two-stroke fuel may separate.  
ALWAYS shake fuel container thor-  
oughly before each use.  
• DONOTsmokenearfuel.  
• DO NOT allow flames or sparks near fuel.  
• Fuel tanks/cans may be under pressure. Always loosen fuel caps  
slowly allowing pressure to equalize.  
• NEVER refuel a unit when the engine is HOT!  
• NEVER refuel a unit with the engine running.  
• DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks out  
doors over bare ground.  
• Securely tighten fuel cap after refueling.  
• Inspect for fuel leakage. If fuel leakage is found, do not start or  
operate unit until leakage is repaired.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
18  
OPERATION  
STARTING COLD ENGINE  
WARNING  
DANGER  
The cutting attachment should not rotate at idle. If attachment  
rotates, readjust carburetor according to "Carburetor Adjustment"  
instructions in this manual or see your ECHO Dealer, otherwise  
serious personal injury may result.  
NOTE  
A
Refer to the attachment Operator's Manual and Safety Manual (if  
included) for proper and safe operating techniques.  
All Models  
1. Stop Switch  
Move stop switch button (A) forward away from the STOP position.  
2. Choke  
Move choke (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.  
B
WARNING  
DANGER  
SRM-2100SB  
Inspect starting area for hazards such as rocks, glass, debris etc.  
which could be contacted by the cutting attachment when starting.  
Keep helpers and bystanders at least 15 m (50 ft.) from starting area,  
otherwise serious personal injury may result.  
C
B
C
SRM-2400SB  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
19  
SRM-2100SB  
4A. Recoil Starter  
Lay the unit on a flat clear area. Firmly grasp rear handle grip  
and throttle lockout with left hand and fully depress throttle  
trigger to wide open position. Rapidly pull recoil starter handle/  
rope(D)untilenginefires(ormaximumfive[5]pulls).  
5A. Choke  
After engine fires (or five [5] pulls), move choke to “Run”  
position. Hold throttle trigger fully depressed and pull recoil  
starter handle/rope (D) until engine starts and runs. Release  
throttle trigger and allow unit to warm up at idle for several  
minutes.  
D
SRM-2400SB  
4B. Recoil Starter  
Lay the unit on a flat clear area and pull the recoil starter  
handle (D) until engine fires.  
5B. Choke  
Move the choke to the OPEN - RUN position. Restart engine if  
necessary and allow to warm up running at idle for several  
minutes.  
SRM-2400SB  
All Models  
NOTE  
If engine does not start with choke in “Run” position after 5 pulls,  
repeat instructions 4 (A/B) and 5 (A/B).  
6. After engine warm up, gradually depress throttle trigger to increase  
engine RPM to operating speed.  
STARTING WARM ENGINE  
All Models  
A
The starting procedures 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 cutting attachment should not rotate at idle. If cutting attach-  
ment moves, readjust carburetor according to "Carburetor Adjust-  
ment" instructions in this manual or see your ECHO Dealer,  
otherwise serious personal injury may result.  
1. Stop Switch  
Move stop switch button (A) forward 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.  
C
D
Download from Www.Somanuals.com. All Manuals Search And Download.  
20  
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  
A
1. Throttle  
Release throttle, and allow engine to return to idle before shutting  
engine off.  
2. Stop Switch  
Move stop switch button (A) backward to STOP position.  
WARNING  
DANGER  
If engine does not stop when stop switch is moved to STOP  
position, close choke - COLD START position - to stall engine.  
Have your ECHO dealer repair stop switch before using trimmer  
again.  
MAINTENANCE  
Your ECHO unit is designed to provide many hours of trouble-free service. Regular scheduled maintenance will help your  
unit achieve that goal. If you are unsure or are not equipped with the necessary tools, you may want to take your unit to  
an ECHO Service Dealer for maintenance. To help you decide whether you want to DO-IT-YOURSELF or have the ECHO  
Dealer do it, each maintenance task has been graded. If a task is not listed, see your ECHO Dealer for repairs.  
SKILL LEVELS  
Level 1 = Easy to do. Most required tools come with unit.  
Level 2 = Moderate difficulty. Some specialized tools may be required.  
Level 3 = Experiencerequired.Specializedtoolsarerequired.ECHOrecommends  
that the unit be returned to your ECHO dealer for service.  
ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Below each task heading  
are listed the various part numbers required for that task. See your ECHO dealer for these parts.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
21  
MAINTENANCE INTERVALS  
3
6
REQ'D  
SKILL  
LEVEL  
DAILY OR  
BEFORE  
USE  
YEARLY  
600  
HOURS  
COMPONENT/  
SYSTEM  
MAINTENANCE  
PROCEDURE  
EVERY  
REFUEL  
MONTHS  
OR 90  
HOURS  
MONTHS  
OR 270  
HOURS  
Recommended Echo Dealer Maintenance Procedures  
Inspect/Clean/Decarbon  
Cylinder Exhaust Port  
3
I / C  
R*  
Do-It-Yourself Maintenance Procedures  
Air Filter  
Inspect/Clean/Replace  
Inspect/Clean  
1
2
1
1
I / C  
I / C  
Choke  
Fuel Filter  
Inspect/Replace  
Inspect/Replace  
I
I
I / R *  
Fuel System, leaks  
I *  
I
Cooling System  
Inspect/Clean  
Inspect/Replace  
Grease  
2
2
2
I / C  
Muffler Spark Arrestor  
I / R *  
I (1)  
Drive Shaft (Flex  
Cable Models)  
Gear Housing  
Recoil Starter Rope  
Spark Plug  
Grease  
2
1
2
I (2)  
I / C  
Inspect/Clean  
Inspect/Clean  
I / C *  
I / R *  
R *  
Screws/Nuts/Bolts  
Inspect/Tighten/Replace  
1
MAINTENANCE PROCEDURE LETTER CODES: I = INSPECT, R = REPLACE, C = CLEAN  
IMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the frequency of required  
maintenance.  
MAINTENANCE PROCEDURE NOTES:  
(1) Apply ECHO® LUBETM every 25 hours of use.  
(2) Apply ECHO® LUBETM every 50 hours of use.  
* All recommendations to replace are based on the finding of damage or wear during inspection..  
Download from Www.Somanuals.com. All Manuals Search And Download.  
22  
AIR FILTER  
Level1.  
Tools required: Cleaningbrush, 25-50mm(1or2in.)mediumbristle  
paint brush.  
Parts required:  
SRM-2100SB90008REPOWERTM AIR&FUELFILTERKIT.  
SRM-2400SB90030REPOWERTM AIR&FUELFILTERKIT.  
SRM-2100SB  
SHOWN  
1. Close choke (Cold Start Position). This prevents dirt from entering  
the carburetor throat when the air filter is removed. Brush accumu-  
lated dirt from the air cleaner area.  
2. Remove the air cleaner cover. Clean and inspect the element for  
damage. If element is fuel soaked and very dirty, replace.  
3. If element can be cleaned and reused, be certain it:  
•still fits the cavity in the air cleaner cover.  
•is installed with the original side out.  
NOTE  
Carburetor adjustment may be needed after air filter cleaning/  
replacement.  
FUEL FILTER  
Level1.  
Tools required: 200-250 mm ( 8 - 10 in.) length of wire with one end  
bent into a hook, Clean rag, funnel, and an approved f  
fuel container.  
Parts required:  
SRM-2100SB90008REPOWERTM AIR&FUELFILTERKIT.  
SRM-2400SB90030REPOWERTM AIR&FUELFILTERKIT.  
WARNING  
DANGER  
FuelisVERYflammable.Useextremecarewhenmixing,storingor  
handling, otherwise serious personal injury may result.  
1. Use a clean rag to remove loose dirt from around fuel cap and  
empty fuel tank.  
2. Use the “fuel line hook” to pull the fuel line and filter from the tank.  
3. Remove the filter from the line and install the new filter.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
23  
SPARK PLUG  
Level2.  
Tools required: Scrench (combination socket wrench and screw  
driver), Feeler gauge (preferably a wire gauge) ,  
Brush.  
Parts Required: Spark Plug, SRM-2100SBNGKBPM-7A  
SRM-2400SBNGKBPM-7Y  
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. Tightensparkplugto145-155kg/cm(125-135in.lb.).  
COOLING SYSTEMS CLEANING  
Level2.  
Tools required: Cross Head Screwdriver, 3 mm Hex Wrench, Pointed  
Wood Stick, Cleaning brush 25 - 50 mm (1 or 2 in.)  
medium bristle paint brush).  
Parts Required: None if you are careful.  
IMPORTANT  
To maintain proper engine operating temperatures, cooling air must  
pass freely through the cylinder fin area. This flow of air carries  
combustion heat away from the engine.  
Overheating and engine seizure can occur when:  
• Air intakes are blocked, preventing cooling air from reaching the  
cylinder.  
• Dust and grass build up on the outside of the cylinder. This build up  
insulates the engine and prevents the heat from leaving.  
A
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 and throttle linkage end from the carburetor  
swivel.  
2. Remove the three screws that retain the engine cover (A). Two at the  
top of the recoil starter, one in the arm rest. Lift the cover from the  
engine.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
24  
3. Use the wooden stick or brush to remove dirt form cylinder fins.  
IMPORTANT  
Do not use a metal scraper to remove dirt from the cylinder fins.  
4. Remove grass and leaves from the grid between the recoil starter and  
fueltank.  
5. Assemble components in reverse order.  
NOTE  
When installing the engine cover, be certain the tab of the metal  
deflector shield is in the slot of the engine cover.  
EXHAUST SYSTEM  
Spark Arrestor Screen  
Level2.  
Tools required: CrossHeadScrewdriver, 3mmHexWrench, Soft  
Metal Brush, Wooden Carbon Scraper.  
Parts Required: ScreenP/N14586240630,Gasket P/N14586642031  
1. Remove engine cover (A). See “Cleaning Cooling System” pages  
26 & 27 for step by step instructions.  
2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt from  
entering cylinder.  
3. Remove spark arrestor screen cover (B), screen holder (C), gasket  
(D) and screen (E) from muffler body.  
4. Clean carbon deposits from muffler components.  
5. Replace screen if it is cracked, plugged or has holes burned through.  
6. Assemble components in reverse order  
E
D
C
NOTE  
When installing the engine cover, be certain the tab of the metal  
deflector shield is in the slot of the engine cover.  
B
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
25  
CARBURETOR ADJUSTMENT  
SRM-2100SB Emission Models  
Level2.  
Toolsrequired: Screwdriver,Tachometer(ECHOP/N99051130017)  
Parts required: None.  
NOTE  
Every unit is run at the factory and the carburetor is set in compli-  
ance with emission regulations. In addition, the carburetor is  
equipped with HI and LO needle adjustment limiters that prevent  
settings outside acceptable limits.  
1. Before adjusting the carburetor, clean or replace the air filter and  
spark arrester screen.  
C
2. Trimmer line must be extended to the cut-off knife.  
B
3. Start engine and run for several minutes to reach operating tempera-  
ture.  
A
4. Stop engine. Turn HI speed needle (C) CCW (counter clockwise) to  
stop. Turn LO speed needle (B) midway between full CCW and CW  
(clockwise) stops.  
5. Idle Speed Adjustment.  
• Start engine and turn “idle” speed adjustment screw (A) CW  
until the cutting attachment begins to turn, then turn the screw  
CCW until cutting attachment stops turning. Turn screw CCW  
an additional 1/4 turn.  
6. Accelerate to full throttle for 2-3 seconds to clear excess fuel from  
engine then return to idle. Accelerate to full throttle to check for  
smooth transition from idle to full throttle. If engine hesitates, turn  
LO needle (B) CCW an additional 1/8 turn and repeat acceleration.  
Continue adjusting until smooth acceleration results.  
SRM-2100SB  
7. Check HI speed RPM at W.O.T. (Wide Open Throttle). HI speed  
RPM should be set to specifications found on page 11 "Specifica-  
tions" of this manual.  
C
8. Check idle speed and reset if necessary. If a tachometer is available,  
idle speed should be set to the specification found on page 11  
"Specifications" of this manual.  
WARNING  
DANGER  
When carburetor adjustment is completed, the cutting attachment  
should not turn at idle, otherwise serious personal injury may result.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
26  
CARBURETOR ADJUSTMENT  
SRM-2400SB Emission Models  
Level2.  
Tools required: Screwdriver,Tachometer(ECHOP/N99051130017).  
Parts required: None.  
NOTE  
Every unit is run at the factory and the carburetor is set in compli-  
ance with emission regulations. This carburetor does not have  
acceleration and high speed adjustment needles. Do not attempt to  
use carburetor adjustment procedures provided in the Warranty/  
EmissionsBooklet.  
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 11 "Specifications" of this manual. Turn idle screw (A)  
clockwise to increase idle speed; counter clockwise to decrease idle  
speed.  
WARNING  
DANGER  
When carburetor adjustment is completed, the cutting attachment  
should not turn at idle, otherwise serious personal injury may result.  
SRM-2400SB  
A
LUBRICATION  
Level1.  
Tools Required: 8mmOpenEndWrench, Screwdriver, CleanRag  
Parts Required: ECHO® LUBETM 8oz.(P/N91014)orLithiumBase  
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.  
A
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
27  
Drive Shaft (Lower)  
IMPORTANT  
Lower and upper drive shaft must be lubricated with high tempera-  
ture automotive grease every 25 hours of operation, otherwise  
drive shaft assembly overheating and failure can result.  
A
B
1. Loosen two (2) screws (A) and remove center locating screw (B).  
Pull gear box and shield from drive shaft housing.  
2. Pull flexible cable from the drive shaft housing, wipe clean and  
re-coatwithathincoating[15ml(1/2oz.)]of ECHO® LUBETM  
.
3. Slide the flexible cable back in the drive housing. DO NOT get  
dirt on the flex cable.  
4. Install the gear housing and shield assembly.  
Drive Shaft (Upper)  
1. Remove coupler from upper drive shaft assembly by loosening  
clamping screw (C) and removing set screw (D).  
2. Remove upper flex drive cable, wipe clean and apply a thin coating  
15ml(1/2oz.)of ECHO® LUBETM.  
3. Install flex drive cable. Make sure that the flex cable engages into the  
clutch mount and also into the coupler mount.  
C
D
4. Slide coupler on upper drive shaft until fully seated, and align set  
screw hole in coupling with hole in upper drive shaft.  
5. Install and tighten set screw (D), and tighten clamping screw (C).  
Download from Www.Somanuals.com. All Manuals Search And Download.  
28  
NYLON LINE REPLACEMENT  
Level1.  
Tools required: Head locking tool (if head is to be removed)  
PartsRequired: ECHO0.095"NylonTrimmerLine6m(20ft.)long.  
1. Shut engine off. Lay unit on the ground with head assembly up.  
B
2. Hold drum (A) and turn spool (B) CW (clockwise) until it stops.  
Pull spool from drum. DO NOT push in on spool when turning.  
3. Use one piece of new nylon line (C) 6m (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  
arrowmarked"CC".  
5. Stopwhenapproximately15-20cm(6-8in.)line(C)remainsand  
place ends of line in notches (E) in spool (B).  
6. Feed ends of line through housing eyelets (F) and place spool (B)  
over drive (G). Align pegs (H) on drive with notches in spool and  
push spool into drum.  
7. Pull on both lines until they come free from notches (E) in spool.  
B
8. Hold drum (A) firmly and turn spool (B) CCW (counterclockwise)  
until it stops. DO NOT push in on spool when turning.  
A
9. Pull both lines out and trim to cut-off knife length.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
29  
SHARPENING METAL BLADES  
Three styles of metal blades are approved for use on the ECHO Brush  
Cutter. The 8-tooth blade can be sharpened during normal maintenance.  
The clearing blade and 80 tooth blade require professional service.  
Before sharpening, CLOSELY inspect blade for cracks (look at the  
bottom of each tooth and the center mounting hole closely), missing  
teeth and bending. If ANY of these problems are discovered, replace  
the blade.  
When sharpening a blade, always remove the same amount of materials  
from each tooth to maintain balance. A blade that is not balanced will  
cause unsafe handling due to vibration and can result in blade failure.  
8-tooth Blade  
Tool required: Flat file (preferred). Electric grinder if special care is  
used. Round (rat tail) file for gullet (radius).  
1. File each tooth at a 30 degree angle a specific number of times,  
eg. 4 strokes per tooth. Work your way around the blade until  
all teeth are sharp.  
2. DO NOT file the 'gullet' (radius) of the tooth with the flat file.  
The radius must remain. A sharp corner will lead to a crack and  
bladefailure.  
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.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
30  
TROUBLESHOOTING  
ENGINE PROBLEM TROUBLESHOOTING CHART  
Problem  
Check  
Status  
Cause  
Remedy  
Clean or replace  
Clean or replace  
See your Echo dealer  
Fuel strainer clogged  
Fuel line clogged  
Carburetor  
No fuel at  
carburetor  
Fuel at carburetor  
No fuel at cylinder Carburetor  
See your Echo dealer  
Open choke  
Fuel at cylinder  
Engine  
cranks -  
starts hard/  
doesn't  
Clean/replace air filter  
Adjust carburetor  
See your Echo dealer  
Muffler wet with fuel Fuel Mixture too rich  
Stop switch off  
Turn switch to ON  
See your Echo dealer  
See your Echo dealer  
start  
Spark at end  
of plug wire  
Electrical problem  
Interlock switch  
No spark  
Spark gap incorrect  
Covered with carbon  
Fouled with fuel  
Adjust to .65mm (0.026 in.)  
Clean or replace  
Clean or replace  
Spark at plug  
No spark  
Plug defective  
Replace plug  
Air filter  
Air filter dirty  
Fuel filter dirty  
Fuel vent plugged  
Plug dirty/worn  
Normal wear  
Clean or replace  
Replace  
Contaminants/residues  
in fuel  
Fuel filter  
Contaminants/residues  
in fuel  
Fuel vent  
Spark Plug  
Clean or replace  
Clean and adjust or replace  
Adjust  
Engine  
runs,  
but dies or  
does not  
accelerate  
properly  
Normal wear  
Vibration  
Improper  
adjustment  
Carburetor  
Excessive  
dirt/debris  
Extended operation in  
dirty/dusty locations  
Cooling System  
Clean  
Screen cracked,  
plugged, or  
Spark Arrestor  
Screen  
Normal wear  
Replace  
perforated  
Engine  
d
oes  
not  
N/A  
N/A  
Internal engine problem See your Echo dealer  
c
rank  
WARNING  
DANGER  
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by grounding  
spark plug against cylinder, otherwise serious personal injury may result.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
GRASS TRIMMER/BRUSH CUTTER  
OPERATOR'S MANUAL  
31  
STORAGE  
Long Term Storage (over 30 days)  
WARNING  
DANGER  
During operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear  
of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may  
result.  
Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage mainte-  
nance which includes the following:  
1.  
Store unit in a dry, dust free place, out of the reach of children.  
WARNING  
DANGER  
Do not store in enclosure where fuel fumes may accumulate or reach an open flame or spark.  
2. Place the stop switch in the "OFF" position.  
7. Remove the spark plug and pour 7 cc (1/4 oz.) (1/2  
tablespoon) of fresh, clean, two-stroke engine oil into  
the cylinder through the spark plug hole.  
3. Remove accumulation of grease, oil, dirt and debris  
fromexteriorofunit.  
A. Place a clean cloth over the spark plug hole.  
4. Perform all periodic lubrication and services that are  
required.  
B. Pull the recoil starter handle 2-3 times to distribute  
the oil inside the engine.  
5. Tighten all the screws and nuts.  
C. Observe the piston location through the spark plug  
hole. Pull the recoil starter handle slowly until the  
piston reaches the top of it's travel and leave it  
there.  
6. Drain the fuel tank completely and pull the recoil  
starter handle several times to remove fuel from the  
carburetor.  
8. Install the spark plug (do not connect spark plug  
cable).  
Download from Www.Somanuals.com. All Manuals Search And Download.  
SERVICING INFORMATION  
PARTS  
GenuineECHOPartsandECHOREPOWERPartsandAssembliesfor  
your ECHO products are available only from an Authorized ECHO  
Dealer. When you do need to buy parts always have the Model  
Number and Serial Number of the unit with you. You can find these  
numbers on the engine housing. For future reference, write them in the  
space provided below.  
Model No. _____________ SN. ____________  
DEALER?  
Call  
1-800-432-ECHO  
or  
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). Dealerinformationisalsoavailableonour  
Web Site. When presenting your unit for Warranty service/repairs,  
proof of purchase is required.  
CONSUMER PRODUCT  
SUPPORT  
1-800-673-1558  
8:30 - 4:30 Mon - Fri C.S.T.  
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  
ConsumerProductSupportDepartmentat1-800-673-1558from8:30am  
to 4:30 pm (Central Standard Time) Monday through Friday. Before  
calling, please know the model and serial number of your unit to help  
your Consumer Product Support Representative.  
WARRANTY REGISTRATION  
You may register your Echo equipment using the warranty registration  
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  
Operator'sandPartsManualsareavailableby:  
• Downloadingfreefromwww.echo-usa.com  
• Purchasing from your Echo Dealer.  
• Sending a check or money order for $2.00 per Parts Catalog or $1.50 per Operator's Manual made payable to ECHO,  
INCORPORATED. State on a sheet of paper the model number and serial number of the ECHO unit you have, part  
number of the manual (if known), your name and address and mail to 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-2100SB TYPE 1E S/N 001001 & UP  
SRM-2400SB TYPE 1E S/N 563000 & UP  
PART NUMBER 99922202870  
PART NUMBER 99922202871  
ECHO, INCORPORATED  
400 OAKWOOD ROAD  
LAKE ZURICH, IL 60047-1564  
Download from Www.Somanuals.com. All Manuals Search And Download.  
SUPPLEMENT TO OPERATOR'S MANUAL  
PART NUMBER X7532277103 (89861056733)  
FOR MODEL: SRM-2100SB, SN 520301 & UP  
Please use this Operator Manual Supplement when assembling and  
maintaining your SRM-2100SB  
DESCRIPTION Page 7  
EMISSION CONTROL  
IMPORTANT ENGINE INFORMATION  
ENGINE FAMILY : 2EHXS.0214RA DISPLACEMENT : 21.2cc  
EMISSION COMPLIANCE PERIOD : 300 HRS.  
PRODUCT EMISSION DURABILITY  
THIS ENGINE MEETS U.S. EPA PHASE 2 EMISSION  
REGULATIONS FOR SMALL NONROAD ENGINES. REFER  
TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICA-  
TIONS AND ADJUSTMENTS.  
The 300 hour emission durability compliance period is the time span selected by  
the manufacturer certifying the engine emissions output meets applicable U.S.  
EPA emissions regulations, provided that approved maintenance procedures  
are followed as listed in the Maintenance Section of this manual.  
PRE-OPERATION Page 17  
FUEL  
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 50:1 oil meets these standards. Engine problems due to inadequate lubrication caused by failure to use an ISO-L-EGD and  
J.A.S.O. FC certified oil, such as Echo Premium 50:1 Two-stroke Oil, 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 EPA Phase II Defect Warranty Explana-  
tion.)  
MAINTENANCE  
CARBURETOR ADJUSTMENT Page25  
Emission Models  
NOTE  
Every unit is run at the factory and the carburetor is set in compliance with EPA Phase II Emission Regulations. In addition, the  
carburetor is equipped with HI and LO needle adjustment limiters that prevent settings outside acceptable limits.  
SUPLEMENTO DEL MANUAL DEL OPERADOR  
NÚMERO DE PIEZA X7532277103 (89861056733)  
PARA LOS MODELO: SRM-2100SB S/N 520301 y Superior  
Utilice por favor este suplemento manual del operador al ensamblar y manteniendo su SRM-2100SB  
DESCRIPCIÓN Page 7  
CONTROL DE EMISIONES  
INFORMACIÓN IMPORTANTE SOBRE EL MOTOR  
FAMILIA DE MOTORES: 2EHXS.0214RA CILINDRADA: 21.2 cc  
PERIODO DE LA CONFORMIDAD PARA LA EMISIONES : 300  
HORAS.  
ESTE MOTOR RESUELVE LOS E.E.U.U. REGULACIONES DE  
LA EMISIÓN DE EPA PH2 PARA EL MOTOR PEQUEÑO DEL  
DURABILIDADDELASEMISIONESDELPRODUCTO  
El período de durabilidad de comformidad para la emisiones de 300 horas  
es el tiempo seleccionado por el fabricante certificando que las emisiones  
de salida del motor cumplen con las regulaciones de emisiones aplicables  
NONROAD. CONSULTE EN EL MANUAL DEL PROPIETARIO  
LAS ESPECIFICACIONES Y AJUSTES DE MANTENIMIENTO.  
de EPA de EE,UU, siempre que se sigan los procedimientos de  
mantenimiento aprobados según se indican en la sección de  
mantenimiento de este manual.  
OPERACIÓN PRELIMINAR Page 17  
COMBUSTIBLE  
Aceite de dos tiempos - Se debe usar un aceite de motor de dos tiempos que cumpla con las normas ISO-L-EGD (ISO/CD. 13738) y  
J.A.S.O. FC. El aceite de calidad Echo 50:1 cumple con estas normas. Los problemas del motor debidos a una lubricación inadecuada  
por no usar un aceite certificado ISO-L-EGD y J.A.S.O.FC, tal como aceite de dos tiempos 50:1 de calidad óptima de Echo, anulará la  
garantía del motor de dos tiempos. (Las piezas relacionadas con las emisiones sólo están cubiertas durante dos años, sea cual sea el  
aceite de dos tiempos usado, según la declaración indicada en la explicación de garantía de defectos de emisiones de la Fase II de la  
EPA).  
MANTENIMIENTO Page 25  
AJUSTE DEL CARBURADOR  
NOTA  
Todas las unidades se hacen funcionar en fábrica y el carburador se ajusta en cumplimiento con las regulaciones de emisiones de  
EPA Fase II. Este carburador no tiene agujas de ajuste de aceleración y alta velocidad.  
99922203534  
01/02  
SUP22203534  
1
Download from Www.Somanuals.com. All Manuals Search And Download.  

Electro Voice Stereo Amplifier PA4150 User Manual
EverFocus Switch ESM316T002R User Manual
Everpure Water System A 20 20 User Manual
Faber Ventilation Hood 620000362 User Manual
Fisher Price Baby Accessories P7866 User Manual
Freecom Technologies IP Phone Skype Phone User Manual
Fujitsu Scanner C150 E140 03EN User Manual
Gaggenau Dishwasher DF 241 User Manual
GE Freezer FUM21DP User Manual
GE Monogram Beverage Dispenser ZDWG240 User Manual