Echo SRM - 2400SB Operator'S Manual Download Page 1

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Grass Trimmer/Brush Cutter

Operator's Manual

MODELS,

Type 1E

SRM - 2100SB

Serial Number 0508702 - 0533423

SRM - 2400SB

Serial Number 0504696 - 0563000

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.

X7532277102

89861056732
1/99

WARNING

The engine exhaust from this

product contains chemicals known

to the State of California to cause

cancer, birth defects or other

reproductive harm.

Summary of Contents for SRM - 2400SB

Page 1: ...RNING DANGER Readrulesforsafeoperationandinstructionscarefully ECHOprovidesanOperator sManualanda SafetyManual Bothmustbereadandunderstoodforproperandsafeoperation X7532277102 89861056732 1 99 WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm ...

Page 2: ...Adjustment SRM 2400SB 29 Lubrication 29 Nylon Line Replacement 31 Sharpening Metal Blades 32 Troubleshooting 33 Storage 34 ServicingInformation 36 Parts 36 Service 36 ECHO Consumer Product Support 36 Warranty Card 36 Additional or Replacement Manuals 36 Manual Ordering Instructions 36 Specifications descriptions and illustrative material in this literature are as accurate as known at the time of p...

Page 3: ...osed 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 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 UPPER DRIVE SHAFT SAFETY GENERAL DESCRIPTION IMPORTANT See Description and Specification sections fo...

Page 4: ...pped 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 i...

Page 5: ...tion Symbol form shape Symbol description application Symbol form shape Symbol description application Symbol form shape INTERNATIONAL SYMBOLS EQUIPMENT Before operation a complete check of the unit must be performed 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 ...

Page 6: ... or operate unit until leakage is repaired 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 PERSONAL CONDITION SAFETY EQUIPMENT WARNING DANGER Trimmer Brush Cutter users risk injury to themselves and others i...

Page 7: ...nds 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 SCARVES JEWELRY Wear sturdy work shoes with non skid soles DONOTWEAROPENTOEDSHOES DONOTOPERATEUNITBAREFOOTED Hot Humid Weather Heavy protective clothing can increase operator fat...

Page 8: ...g the unit equip yourself and any other personworking within the 15M 50 ft Safety Zone with the required Protective Equipment and clothing AvoidHotSurfaces During operation the complete unit especially the drive shaft housing and the bearing housing may become very hot too hot to touch Avoid contact during and immediately after operation KeepAFirmGrip Hold the front and rear handles with both hand...

Page 9: ...tion 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...

Page 10: ...g 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 CONTENTS BLADE TERMS DEFINITIONS BladeConvertible Models SR...

Page 11: ...e is EM EngineModification EmissionControlLabellocatedonEngine EXAMPLEONLY informationonlabelvariesby FAMILY 3 5 6 7 8 9 10 11 12 13 4 IMPORTANTENGINEINFORMATION ENGINE FAMILY YEHXS 0254CB DISPLACEMENT 25 4 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 ...

Page 12: ...ting 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 12 LOWERDRIVESHAFTASSEMBLY IncludestheDebrisShieldAssembly GearHousingAssembly LowerFlexible Drive Cable Nylon Cutting Attachment and Safety Decal 13 THROTTLETRIGGER Springloadedtoreturntoidlewhenreleased Duringacceleration presstri...

Page 13: ...o D iaphragm m odel W YJ w purge Ignition S ystem C D I capacitor discharge ignition S park P lug NG K B P M 7A Gap 0 65 m m 0 026 in NG K B P M 7Y G ap 0 65 m m 0 026 in F uel M ixed Gasoline and Two stroke O il F uel O il Ratio 50 1 E C HO High P erform ance two stroke air cooled engine oil G asoline 89 Octane unleaded D O NOT use fuel containing m ethyl alcohol m ore than 10 ethyl alcohol or 15...

Page 14: ...achment manual 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 these units Model SRM 2100SB SRM 2400SB SRM Edger Attachment 99944200470 SRM Cultivator Attachment 99944200510 SRM Trimmer Attachment 99944200540 SRM Hedge Clipper Attachment 99944200480 SRM Power PrunerTM Attachment 99944200530 ...

Page 15: ...line with the engine 5 Rotate locator pin B 1 4 turn clockwise to engage lower drive shaft hole Insure locator pin is fully engaged by gently twisting lower drive shaft Locator pin should snap flush in coupler Full engage ment will prevent further shaft rotation 6 Secure lower shaft assembly to coupler by tightening clamping knob A PLASTIC SHIELD INSTALLATION ForNylonLineOperation Tools Required S...

Page 16: ...rom 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 operatio...

Page 17: ...99922200410 metal shield A and shoulder harness B Steel MetalBladesRequire SRM 2100SB CombinationBlade and U HandleKit P N99944200451 SRM 2400SB CombinationBlade and U HandleKit P N99944200521 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 ...

Page 18: ...der 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...

Page 19: ... to an approved fuel storage container Storage Fuel storage laws vary by locality Contact your local government for the laws affecting your area As a precaution store fuel in an approved air tight container Store in a well ventilated unoccupied building away from sparks and flames Do not store fuel longer than 30 days FUEL Fuel Requirements Gasoline Use 89 Octane gasoline known to be good quality ...

Page 20: ...t shield for damage and ensure that the cut off knife is securely in place Replace if either is damaged or missing Check that the cutting attachment is firmly attached and in safe operating condition Check that front handle and shoulder strap or shoulder waist harness are adjusted for safe comfortable operation See Assembly section for proper adjustment S M T W T F S 1 2 3 4 5 6 7 8 9 10 11 12 13 ...

Page 21: ...t 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 All Models 1 Stop Switch Start Run Move stop switch button A forward away from the STOP position 2 Choke Lever Cold Start Move choke B to Cold Start Position 3 PrimerBulb Prime Pumpprimerbulb C 10ti...

Page 22: ...e open position Rapidly pull recoil starter handle rope D untilenginefires ormaximumfive 5 pulls 5A After engine fires or five 5 pulls move choke to Run posi tion 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 SRM 2400SB 4B Start Pull Rope Lay the trimmer on a fl...

Page 23: ...rovide 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 task is not listed see you...

Page 24: ...r e l f f u M e c a l p e R t c e p s n I 2 R I x e l F t f a h S e v i r D s l e d o M e l b a C e s a e r G 2 1 I g n i s u o H r a e G e s a e r G 2 2 I e p o R r e t r a t S l i o c e R n a e l C t c e p s n I 1 C I g u l P k r a p S n a e l C t c e p s n I 2 C I R s t l o B s t u N s w e r c S e c a l p e R n e t h g i T t c e p s n I 1 R I S E D O C R E T T E L E R U D E C O R P E C N A N E ...

Page 25: ...n 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 203 254 mm 8 10 in length of wire with one end bent into a hook Clean rag funnel and an approved fuel container Parts required SRM 2100SB90008REPOWERTM AIR FUELFILTERKIT SRM 2400SB90030REPOWERTM ...

Page 26: ...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 th...

Page 27: ...d Screwdriver 3 mm Hex Wrench Soft Metal Brush Wooden Carbon Scraper Parts Required ScreenP N14586240630 GasketLidP 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 bod...

Page 28: ...ine 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...

Page 29: ...ooklet 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 13 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...

Page 30: ...the upper drive shaft mount 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 of 15 ml 1 2 oz of high temperature automotive grease 3 Install flex drive cable Make sure that the flex cable engages into the clutch mount and also into the coupler mount 4 Install...

Page 31: ... 15 cm 6 in longer than the other 3 Hold the spool opening toward you Place index finger between the two strands and wind line tightly and evenly in direction of arrowmarked CC 4 Stopwhenapproximately15 20cm 6 8 line C remainsand place ends of line in notches E in spool B 5 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 pu...

Page 32: ... 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...

Page 33: ... switch Turn switch on See your ECHO dealer See your ECHO dealer Spark at plug No spark at plug Spark gap incorrect Covered with carbon Fouled with fuel Spark plug defective Adjust 0 65mm 0 026in Clean or replace Clean or replace Replace plug Engine does not crank Internal engine problem See your ECHO dealer Engine runs Dies or accelerates poorly Air filter dirty Fuel filter dirty Fuel vent plugge...

Page 34: ...ll 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 fresh clean two stroke engine oil into the cylinder through the spark plug hole A Place a clean cloth over the spark plug hole B Pu...

Page 35: ...GRASS TRIMMER BRUSH CUTTER OPERATOR S MANUAL 35 NOTES ...

Page 36: ...ase know the model and serial number of your unit to help your Consumer Product Support Representative WARRANTY CARD This card is our means of registering all original owners of ECHO equipment The card plus proof of purchase provides you the assur ance that authorized warranty work will be done It also provides a direct link between you and ECHO if we find it necessary to contact you ADDITIONAL OR...

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