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1.

OPERATOR'S MANUAL

 - Included in plastic bag (co-pack). Read before operation and keep in a safe place for

future reference, i.e., operation, maintenance, storage and specifications.

2.

SAFETY MANUAL

 - Included in plastic bag (co-pack). Read before operation and keep in a safe place for future

reference to learn proper, safe operating techniques.

3.

POWER HEAD

 - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter.

4.

GRIP

 - Rear (right hand) handle.

5.

STOP SWITCH

 - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing.  Move switch FORWARD to

RUN, BACK to STOP.

6.

FRONT HANDLE

 - The front (loop) handle is not assembled to the Drive Shaft assembly (some models) and must be

positioned for proper cutting attitude and operator comfort.

7.

DRIVE SHAFT ASSEMBLY

 - Includes the Rear (right hand) Handle assembly, Gear Housing assembly, front (loop,

left hand) Handle assembly, Flexible Drive Cable and Safety Decal.

8.

NYLON CUTTING ATTACHMENT

 - Contains replaceable nylon trimming line that advances when the trimmer head

is tapped against the ground while the head is turning at normal operating speed.

9.

CUT-OFF KNIFE

 - Automatically trims line to the correct length: 5" after head is tapped on the ground. If trimmer is

operated without a cut-off knife the line will become too long, the engine will overheat and engine damage may occur.

10.

PLASTIC DEBRIS SHIELD ASSEMBLY

 - Included in plastic bag (co-pack). 

MUST

 be installed on unit before use,

see Assembly Instructions.  Shield assembly includes the Cut-Off Knife 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.

THROTTLE TRIGGER

 - Spring loaded to return to idle when released.  During acceleration, press trigger gradually

for best operating technique.

12.

ARM REST

 - Provides arm rest during operation and protects arm from the hot engine.

13.

SPARK PLUG

 - Provides spark to ignite fuel mixture.

14.

MUFFLER/SPARK ARRESTOR

 - The muffler controls the exhaust noise while the spark arrestor prevents hot,

glowing particles of carbon from leaving the muffler where they could possibly start a fire.  Built in accordance with
SAEJ335, this product is approved for use on U.S. Forest Land and within the states of California, Maine, Oregon and
Washington if the spark arresting screen is in place and in good repair.

15.

FUEL TANK

 - Contains fuel and fuel filter.

16.

RECOIL STARTER HANDLE

 - Pull recoil handle slowly until starter engages, then quickly and firmly.  When engine

starts, return handle slowly.  DO NOT let handle snap back or damage to unit will occur.

17.

FUEL TANK CAP

 - Covers and seals fuel tank opening.

18.

PRIMER BULB

 - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carbure-

tor for starting.  Pump the bulb 10 times until fuel is visible in clear fuel return line.

19.

AIR CLEANER

 - Contains replaceable filter element.

20.

CHOKE

 - The choke control lever is located on the top of the air filter case.  Pull choke knob up to close the choke

for cold starting.  Push knob down for the "RUN" position.

21.

SHOULDER HARNESS

 - An adjustable strap that suspends the unit from the operator.  Using the strap reduces

operator fatigue.

22.

METAL BLADE SHIELD

 - Required when unit is equipped with blades.  Do not operate unit without shield.

23.

BLADE

 - Circular blade for grass, weed or brush cutting applications.  Harness, metal shield and U-handles required

for blade operation.

24.

U-HANDLE

 - Required for metal blade operation.

25.

SAFETY VIDEO

 - (Not included with unit) P/N 99922202540 English version only is available at a cost of $5.00 from

ECHO, INC. or any authorized ECHO dealer. The video overviews safety precautions and proper operating tech-
niques and is supplemental to the Safety Manual. Read and understand the Safety Manual for complete information
on safe operation.

Summary of Contents for SRM-2400 TYPE 1E - 09-99

Page 1: ...ER Readrulesforsafeoperationandinstructionscarefully ECHOprovidesanOperator sManualanda SafetyManual Bothmustbereadandunderstoodforproperandsafeoperation X7532279701 89861154131 09 99 WARNING The engi...

Page 2: ...on 7 Extended Operation Extreme Conditions 9 Description 10 Contents 10 Blade Terms Definitions 10 Emission Control 11 Specifications 13 Assembly 14 ECHO Approved Optional Attachments 14 Plastic Shiel...

Page 3: ...MPORTANT 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 t...

Page 4: ...and any cutting attachment Maintaina15M 50ft radius DANGERZONEsurroundingthe operator ONLY the operator dressed in proper protective clothing shouldbeintheDANGERZONE BewareofKICKOUT bladethrust whenu...

Page 5: ...omfortable operation See Assembly Section for proper adjustment Symbol description application Symbol form shape Symbol description application Symbol form shape Hot Surface Carburetor adjustment Idle...

Page 6: ...art 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 fue...

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

Page 8: ...e 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 handle...

Page 9: ...ion 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 are...

Page 10: ...ty Glasses 1 2 Stroke Oil Sample 2 6 oz 1 Shoulder Harness w hip pad 1 Shoulder Harness w o hip pad 1 Plastic Bag 1 shield plate 3 5mm x 15mm screws shield mounting 1 Plastic Bag for blade use only 1...

Page 11: ...MILY TEH021UB24RA DISPLACEMENT 23 6 cc THIS ENGINE MEETS U S EPA PHI AND 1995 1999 CALIFORNIAEMISSION REGULATIONS FOR ULGE ENGINES REFER TO OWNER S MANUAL FOR MAINTENANCE SPECIFICA TIONS AND ADJUSTMEN...

Page 12: ...radually for best operating technique 12 ARM REST Provides arm rest during operation and protects arm from the hot engine 13 SPARKPLUG Providessparktoignitefuelmixture 14 MUFFLER SPARKARRESTOR Themuff...

Page 13: ...E C H O H ig h P e rfo rm a nc e tw o s tro k e a ir c o o le d e ng ine o il G a s o line 8 9 O c ta ne unle a d e d D O N O T us e fue l c o nta ining m e thyl a lc o ho l m o re tha n 1 0 e thyl a...

Page 14: ...B with notch in edge of gear housing and insert head locking tool A 2 Remove split pin from hole in PTO shaft 3 Remove 10mm nut by turning it clockwise as viewed from under side of grass shield with 1...

Page 15: ...mm x 8mm screws 4 5mm nuts 4 5mm lockwashers bracket to shield and bracket to gear housing 1 If necessary remove nylon line head and plastic shield 2 Loosely attach bracket A to shield B and attach to...

Page 16: ...m the drive shaft assembly IMPORTANT Prevent flexible drive cable from sliding from drive shaft housing If cable does slide free clean dirt from cable and re lubricate with lithium based grease prior...

Page 17: ...Parts Required U HandleKitP N99944200521 NOTE On model 2410 use Steps 1 10 12 13 14B 15 17 and 18 only 1 Close choke and remove air filter cover 2 Disconnect ignition stop lead A Remove bolt B and gr...

Page 18: ...kage D through adjustment fixture E and install wire end into large carburetor throttle swivel hole C Check throttle for freedom of movement and that wide open throttle low idle extremes are adjusted...

Page 19: ...tal bracket clamp Q with curved end down Install throttle linkage into bracket clamp and pinch tight with pliers 16 Loosely fold ignition leads and retain them with black wire holder N 17 Install air...

Page 20: ...4200410 metal shield A and shoulder harness B Steel MetalBladesRequireComboKit P N99944200521 Choosing the Correct Blade WARNING DANGER The type of Blade used MUST be matched to the type and size of m...

Page 21: ...heShoulder Waist 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...

Page 22: ...ous 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 p...

Page 23: ...ace 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 is securely in place...

Page 24: ...rburetor according to Carburetor Adjustment instructions in this manual or see your ECHO Dealer otherwise serious personal injury may result 1 Stop Switch Start Run Move stop switch button A forward a...

Page 25: ...he same as Cold Start except DO NOT close the choke WARNING DANGER The cutting attachment should not rotate at idle If attachment rotates readjust carburetor according to Carburetor Adjustment instruc...

Page 26: ...nsure 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 Deale...

Page 27: ...s e r r A k r a p S 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...

Page 28: ...rtain 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...

Page 29: ...edium 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...

Page 30: ...ead Screwdriver Soft Metal Brush Parts Required ScreenP N14586240630 GasketLidP N14586642031 1 Remove engine cover A See Cleaning Cooling System pages 29 30 for step by step instructions 2 Place pisto...

Page 31: ...ew 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 p...

Page 32: ...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 Stopwhenapproximately6 8 15 20cm line C rema...

Page 33: ...ling 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 a...

Page 34: ...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...

Page 35: ...terior of unit 4 Perform all periodic lubrication and services that are required 5 Tighten all the screws and nuts 6 Drain the fuel tank completely and pull the recoil starter handle several times to...

Page 36: ...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 war...

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