Echo SRM-3400 Series Operator'S Manual Download Page 1

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Grass Trimmer/Brush Cutter

Operator's Manual

MODEL

SRM-3400

Serial Number 541793 & Up

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.

X7502124703

89861155833

12/01

Summary of Contents for SRM-3400 Series

Page 1: ...anual MODEL SRM 3400 Serial Number 541793 Up WARNING DANGER Readrulesforsafeoperationandinstructionscarefully ECHOprovidesanOperator s ManualandaSafetyManual Bothmustbereadandunderstoodforproperandsafe operation X7502124703 89861155833 12 01 ...

Page 2: ...ing Cold Engine 20 Starting Warm Engine 21 Stopping Engine 21 Maintenance 22 Skill Levels 22 Maintenance Intervals 22 Air Filter 23 Fuel Filter 23 Spark Plug 24 Cooling System Cleaning 24 Exhaust System 25 Carburetor Adjustment Emission 26 Lubrication 27 Nylon Line Replacement 27 Sharpening Metal Blades 28 Troubleshooting 29 Storage 30 ServicingInformation 32 Parts 32 Service 32 ECHO Consumer Prod...

Page 3: ...CALS 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 DEBRISSHIELDDECAL WARNING DANGER This unit can be d...

Page 4: ...mmediately 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 M...

Page 5: ...es 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 ...

Page 6: ...hat 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 SAFE OPERATION WARNING DANGER Do not operate this product indoors o...

Page 7: ...rictions 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 CONTENTS 1 Power Head 1 Drive Shaft Assembly 1 Plastic Bag co pack 1 Operator s Manual 1 Safety Manual 1 Warranty Registration Card 1 Limited Warranty Statement 1 Plast...

Page 8: ...8 14 13 15 16 18 19 20 17 12 21 7 8 9 10 5 6 4 1 2 3 11 ...

Page 9: ...ng operation This shield must be replaced with the steel shield for blade use 10 THROTTLETRIGGER Springloadedtoreturntoidlewhenreleased Duringacceleration presstriggergraduallyfor best operating technique 11 SHOULDER HARNESS An adjustable strap that suspends the unit from the operator Using the strap reduces operator fatigue 12 CHOKE The choke control is located on the top of the air filter case P...

Page 10: ... s o w t e c n a m r o f r e P h g i H O H C E 1 0 5 e n i l o s a G E B T M 5 1 r o l o h o c l a l y h t e 0 1 n a h t e r o m l o h o c l a l y h t e m g n i n i a t n o c l e u f e s u T O N O D d e d a e l n u e n a t c O 9 8 l i O l i o e n i g n e d e l o o c r i a e k o r t s o w t e c n a m r o f r e P h g i H O H C E 1 0 5 y t i c a p a C k n a T l e u F z o l f S U 1 7 2 t i l 8 0 m e t...

Page 11: ...earing housing and head assembly must be in line with the engine 4 Turn drive shaft housing until locating hole lines up with location hole in clamp and install center drive shaft location bolt A 5 Tighten two 2 drive shaft clamp bolts B PLASTIC SHIELD INSTALLATION forNylonLineOperation Tools Required Screwdriver Parts Required PlasticShield ShieldPlate three 3 5mmx18mm screws NOTE The plastic shi...

Page 12: ...Retain lower plate 10mm nut and split pin for future use 5 Be sure upper plate B remains on PTO shaft 6 Thread line head onto PTO shaft by turning it counter clockwise until head is tight against upper plate B WARNING DANGER You must install a U Handle Kit and Blade Conversion kit before operating this unit using metal blades otherwise serious injury may result BLADE UPPER PLATE Install Metal Shie...

Page 13: ...TALLATION NOTE Some models require installation of Harness Clamp If your unit does not have a clamp follow these directions Tools Required Screwdriver 8mmx10mmOpenEndWrench Parts Required HarnessClamp 4mmx18mmHexagonHead Bolt Link 6 Remove shield and gear housing as an assembly a Loosen two 2 screws B that clamp the gear housing to the drive shaft housing b Remove locating screw C found at the top...

Page 14: ... Close choke and remove air filter cover 2 Loosen nut A and place threaded end of throttle linkage in bracket slot Finger tighten nut A 3 Place inner cable in slot of carburetor swivel B and tighten nut A 4 Check throttle for freedom of movement and that wide open throttle low idle extremes are adjusted properly If adjustment cannot be achieved with adjusting nuts consult with your Echo Dealer for...

Page 15: ...ve throttle linkage from bracket 5 Loosen screws D and remove center shaft location bolt E 6 Loosen two 2 rear handle screws F and pull rear handle G from the drive shaft assembly 7 Loosen screw and pull harness clamp H from drive shaft assembly 8 Loosen four 4 screws and remove front handle J 9 PositionlowerU HandleBracket K 400mm 15 3 4in from engine end of drive shaft Secure with three 3 5mm x ...

Page 16: ... washer on each side of bracket Finger tighten both nuts A 15 Attach inner cable to swivel B Check throttle for freedom of movement and that wide open throttle low idle extremes are adjusted properly If adjustment cannot be achieved with adjusting nuts consult with your Echo Dealer for correct adjustment procedure 16 Attach ignition leads C 17 Balanceunit a Put on harness and attach unit to harnes...

Page 17: ...al shield A shoulder harness B and barrier bar C Steel Metal Blades Require Blade Conversion Kit PLUS a U HandleKit D P N35130455830 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 a...

Page 18: ...t Harness is recommended for ALL Trimmer Brush Cutter use not just Blade operation The Shoulder Waist Harness when used in a trimming operation with nylon line head suspends the trimmer from the operator s shoulder and reduces operator fatigue 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 ...

Page 19: ... or serious personal injury may result Use an approved fuel container 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 outdoors over bare ground Secur...

Page 20: ...r 5 times WARNING DANGER Inspect starting area for hazards such as rocks glass debris etc which could be thrown by the cutting attachment when starting Keep helpers and bystanders at least 15m 50 ft from starting area otherwise serious personal injury may result 4 Recoil Starter Lay the trimmer on a flat clear area Firmly grasp throttle grip with left hand and rapidly pull recoil starter handle ro...

Page 21: ...STOP position 2 Start Lay the trimmer 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 w...

Page 22: ... o c e R t r o P t s u a h x E r e d n i l y C n o b r a c e D n a e l C t c e p s n I 3 C I s e r u d e c o r P e c n a n e t n i a M f l e s r u o Y t I o D r e t l i F r i A e c a l p e R n a e l C t c e p s n I 1 C I R e k o h C n a e l C t c e p s n I 2 C I r e t l i F l e u F e c a l p e R t c e p s n I 1 I R I s k a e l m e t s y S l e u F e c a l p e R t c e p s n I 1 I I I m e t s y S g n...

Page 23: ...ned 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 Fuellinehook 200 250mm 8 10in lengthofwire with one end bent into a hook Clean rag funnel and an approved fuel container Partsrequired 90030REPOWERTM AIR FUELFILTERKIT WAR...

Page 24: ...st 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...

Page 25: ...crewdriver Scrench Soft metal brush Wooden carbon scraper 3mm and 4mm Hex Wrench Parts Required ScreenP N14590555730 LidGasketP N14586655730 1 Removethree 3 screwsretainingmufflercover B 2 Place piston at Top Dead Center TDC to prevent carbon dirt fromenteringcylinder 3 Remove screen holder C gasket D and screen E from muffler body 4 Clean carbon deposits from screen and muffler components 5 Repla...

Page 26: ... CW until the cutting attachment begins to turn then turn the screw CCW until attachment stops turning Turn screw C 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 repe...

Page 27: ... LINE REPLACEMENT Tools Required Head locking tool if head is to be removed Parts Required ECHO0 105in NylonTrimmerLine15m 50feet long 1 Shut engine off Lay unit on the ground with head assembly up 2 Hold head firmly and push in cover tabs A to remove spool 3 Use one piece of nylon line B and thread through the molded loop C on the spool spindle until ends are even 4 Hold spool with the tap knob i...

Page 28: ... 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 numb...

Page 29: ... i t c e f e d g u l P n i 6 2 0 0 m m 5 6 o t t s u j d A e c a l p e r r o n a e l C e c a l p e r r o n a e l C g u l p e c a l p e R s n u r e n i g n E r o s e i d t u b t o n s e o d e t a r e l e c c a y l r e p o r p r e t l i f r i A y t r i d r e t l i f r i A r a e w l a m r o N e c a l p e r r o n a e l C r e t l i f l e u F y t r i d r e t l i f l e u F s e u d i s e r s t n a n i m a...

Page 30: ...k 2 Place the stop switch in the STOP position 3 Remove accumulation of grease oil dirt and debris fromexteriorofunit 4 Perform all periodic lubrication and services that are required 5 Tighten all the screws and nuts 6 Drain the fuel tank completely and pull the recoil starter handle several times to remove fuel from the carburetor 7 Remove the spark plug and pour 7 cc 1 4 oz 1 2 tablespoon of fr...

Page 31: ...GRASS TRIMMER BRUSH CUTTER OPERATOR S MANUAL 31 NOTES ...

Page 32: ...r 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 card or register on li...

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