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G

RASS

 T

RIMMER

/B

RUSH

 C

UTTER

O

PERATOR

'

S

 M

ANUAL

9

1.

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

2.

GRIP - Rear (right hand) handle.

3.

THROTTLE TRIGGER LOCKOUT - This lever must be held during starting. Operation of the throttle trigger is

prevented unless throttle trigger lockout lever is engaged.

4.

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

RUN, BACK to STOP.

5.

FRONT HANDLE - The Front (loop) handle is loosely assembled to the Drive Shaft assembly and must be posi-

tioned for proper cutting attitude and operator comfort.

6.

DRIVE SHAFT ASSEMBLY - Includes the Rear (right hand) Handle assembly, Gear Housing assembly, Front (loop,

left hand) Handle assembly, steel drive shaft and Safety Decal.

7.

NYLON CUTTER HEAD - 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.

8.

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.

9.

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. Mounts on the Gear Housing Assembly just

above the cutting attachment. Helps protect the operator by deflecting debris produced during the trimming opera-

tion.  This shield must be replaced with the steel shield for blade use.

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

for best operating technique.

11. SPARK PLUG - Provides spark to ignite fuel mixture.

12. TOP GUARD - Protects arm from the hot engine.

13. SPARK ARRESTOR - CATALYTIC MUFFLER / MUFFLER -The muffler or catalytic muffler controls exhaust noise

and emission. The spark arrestor screen prevents hot, glowing particles of carbon from leaving the muffler. Keep

exhaust area clear of flammable debris.

14. FUEL TANK - Contains fuel and fuel filter.

15. RECOIL STARTER HANDLE - Pull 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.

16. FUEL TANK CAP - Covers and seals fuel tank opening.

17. PRIMER BULB - Pumping primer bulb before starting engine draws fresh fuel from the fuel tank priming the carbure-

tor for starting.  Pump primer bulb until fuel is visible and flows freely in the clear fuel tank return line. Pump bulb an

additional 4 or 5 times.

18. AIR CLEANER - Contains replaceable filter element.

19. CHOKE - The choke control is located on the top of the air filter case.  Move choke lever  to "Cold Start" (

) to

close choke for cold start. Move choke lever to "Run" (

) position to open choke.

20. SAFETY VIDEO - (Not included with unit) P/N 99922202540 English version and P/N 99922203508 Spanish version

are  available at a cost of $5.00 from ECHO, INC. or any authorized ECHO dealer. The video overviews safety precau-
tions and proper operating techniques and is supplemental to the Safety Manual. Read and understand the Safety

Manual for complete information on safe operation.

Summary of Contents for SRM-231S

Page 1: ...ECHOprovidesanOperator s ManualandaSafetyManual Bothmustbereadandunderstoodforproperandsafe operation Grass Trimmer Brush Cutter Operator s Manual MODEL SRM 231 Serial Number 06001001 06017940 SRM 23...

Page 2: ...ional Symbols 4 Safety Instructions 5 Personal Condition and Safety Equipment 5 Extended Operation Extreme Conditions 5 Equipment 6 Safe Operation 7 Emission Control 7 Description 8 Contents 8 Specifi...

Page 3: ...mean to you SAFETY DECALS Locate these safety decals on your unit Make sure the decals are legible and that you understand and follow the instructions on them If a decal cannot be read a new one can...

Page 4: ...t 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 INSPECT BLADES BEFORE USE DO NOT USE DA...

Page 5: ...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...

Page 6: ...wer 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 pr...

Page 7: ...Control Label is located on the engine This is an EXAMPLE ONLY information on label varies by engine FAMILY PRODUCTEMISSIONDURABILITY The 300 hour emission durability compliance period is the time sp...

Page 8: ...Some Echo units may be factory pre assembled The nylon line head plastic debris shield and mounting hardware shown in the contents list are pre assembled to the unit No assembly tools are needed The f...

Page 9: ...tion This shield must be replaced with the steel shield for blade use 10 THROTTLETRIGGER Springloadedtoreturntoidlewhenreleased Duringacceleration presstriggergradually for best operating technique 11...

Page 10: ...nleaded DO NOT use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Oil PowerBlendTM PremiumUniversal2 StrokeOil Fuel Tank Capacity 0 58lit 19 6USfl oz Starter System AutomaticRewi...

Page 11: ...of bearing housing flange 3 Place shield plate on plastic shield align holes Install three 3 screws from bottom through plate and shield into gear case 4 Install adapter plate A onto PTO shaft NYLON L...

Page 12: ...front handle for comfortable operation and secure screws A C B Grass Weed Blades Require InstallBladeConversionKit P N99944200415 Includes metal shield A barrier bar B and shoulder harness C NOTE The...

Page 13: ...ck 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 8ToothWeed GrassBlade P N69600120331...

Page 14: ...gs up to 64 mm 2 1 2 in diameter UseShoulder WaistHarness P N99944200200 Useofthe Shoulder Waist Harness is recommended for ALL Trimmer Brush Cutter use The Shoulder Waist Harness suspends the trimmer...

Page 15: ...able Useextremecarewhenmixing storingor handling 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...

Page 16: ...area and keep movable attachment parts clear of all obstacles Firmly grasp right hand grip and throttle trigger lockout with left hand and fully depress throttle trigger to wide open position Rapidly...

Page 17: ...ion 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 3 Recoil Starter Lay the unit on a flat clear area and pu...

Page 18: ...m 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...

Page 19: ...ry 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 FUEL FILTER Level1 Tools Required 200 250mm...

Page 20: ...gbrush 25or50mm 1or2in Parts Required None if you are careful IMPORTANT To maintain proper engine operating temperatures cooling air must pass freely through the cylinder fin area This flow of air car...

Page 21: ...tal scraper to remove dirt from the cylinder fins 5 Use brush to remove dirt from the cylinder fins 6 Remove grass and leaves from the grid between the recoil starter and fuel tank 7 Assemble componen...

Page 22: ...inspected and cleaned of excess carbon every 3 months or 90 hours of operation in order to maintain this engine within the emissions durability period ECHO strongly recommends that you return your uni...

Page 23: ...the cutting attachment should not move at idle otherwise serious personal injury may result LUBRICATION Level1 Tools Required 8mmOpenEndWrench Screwdriver CleanRag Parts Required ECHO LUBETM 8oz P N9...

Page 24: ...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 e...

Page 25: ...als 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 Tool Required Flatfile preferred Electricgrinderifspeci...

Page 26: ...c E r u o y e e S r e l a e d o h c E r u o y e e S g u l p t a k r a p S k r a p s o N t c e r r o c n i p a g k r a p S n o b r a c h t i w d e r e v o C l e u f h t i w d e l u o F e v i t c e f e...

Page 27: ...reach an open flame or spark 2 Place the stop switch A in the STOP position 3 Remove accumulation of grease oil dirt and debris fromexteriorofunit 4 Perform all periodic lubrication and services that...

Page 28: ...m 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 reg...

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