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G

RASS

 T

RIMMER

/B

RUSH

 C

UTTER

O

PERATOR

'

S

 M

ANUAL

11

S

PECIFICATIONS

* Install and use U-Handle when operating any model with blade.

M O D E L

S R M -3 1 1

S R M -3 1 1 S

S R M -3 1 1 U

L e n g th

1 8 2 0   m m   (7 1 .7   i n .)

W i d th

2 5 0   m m   (9 .8   i n .)

7 1 0   m m   (2 8 .0   i n .)

H e i g h t

2 6 0   m m   (1 0 .0   i n .)

4 2 0   m m   (1 6 .5   i n .)

W e i g h t  (d r y)  w /C u tte r   H e a d

6 .0   k g   (1 3 .2   lb .)

6 .1   k g   (1 3 .4   lb .)

6 .5   k g   (1 4 .3   lb .)

E n g i n e   Typ e

A i r  c o o le d ,  tw o -s tro k e ,  s i n g le  c yli n d e r  g a s o li n e   e n g i n e

B o re

3 6 .0   m m   (1 .4 2   i n .)

S tro k e

3 0 .0   m m   (1 .1 8   i n .)

D i s p la c e m e n t

3 0 .5   c c   (1 .8 6   c u .  i n .)

E xh a u s t

S p a rk   A rre s to r  M u ffle r   w /c a ta lys t

C a r b u re to r

W a lb ro   d i a p h r a g m   m o d e l  W YJ   w /p u rg e   p u m p

Ig n i ti o n   S ys te m

F lyw h e e l  m a g n e to ,  c a p a c i to r  d i s c h a rg e   (C D I)

S p a rk   P lu g

N G K   B P M -8 Y,    (G a p   0 .6 5   m m   (0 .0 2 6   i n .)

F u e l

M i xe d   (G a s o li n e   a n d   Tw o - s tro k e   O i l)

F u e l/O i l  R a ti o

5 0 :1   E C H O   H i g h   P e r fo r m a n c e ,  tw o - s tro k e   a i r  c o o le d   e n g i n e   o i l

G a s o li n e

8 9   O c ta n e   u n le a d e d .  D O   N O T   u s e   fu e l  c o n ta i n i n g   m e th yl  a lc o h o l,  m o re   th a n

1 0 %   e th yl  a lc o h o l  o r  1 5 %   M T B E .

O i l

5 0 :1   E C H O   H i g h   P e r fo r m a n c e ,  tw o - s tro k e   a i r  c o o le d   e n g i n e   o i l

F u e l  Ta n k   C a p a c i ty

0 .9   li t.  (3 0 .4   U S   fl.  o z.)

S ta rte r  S ys te m

A u to m a ti c   R e c o i l  S ta rte r

C lu tc h

C e n tri fu g a l  Typ e

D r i ve   S h a ft

1 /4 "   F le x  S h a ft

7 m m   S p li n e   S te e l  S h a ft

1 /4 "   F le x  S h a ft

R o ta ti n g   D i re c ti o n

C o u n te r  C lo c k w i s e   vi e w e d   fro m   to p

C u tte r   H e a d

S e m i   A u to   N ylo n   li n e   h e a d   ( 2 -li n e )

B la d e   C a p a b le

H a n d le s *

F r o n t-L o o p ,  R i g h t  G ri p

U -H a n d le

U -H a n d le

O p ti o n a l  k i t

S ta n d a rd

S h o u ld e r   H a rn e s s

S ta n d a rd   H a rn e s s

H a rn e s s   w /h i p   p a d

Id le   S p e e d

2 5 0 0   -   3 3 0 0   R P M

W i d e   O p e n   T h ro ttle   S p e e d

(W .O .T.) w i th  N ylo n  L i n e  H e a d

8 5 0 0   -   9 5 0 0   R P M

W i d e   O p e n   T h ro ttle   S p e e d

(W .O .T.) w i th  B la d e

9 5 0 0   -   1 1 0 0 0   R P M

Summary of Contents for SRM - 311

Page 1: ...ulesforsafeoperationandinstructionscarefully ECHOprovidesanOperator s ManualandaSafetyManual Bothmustbereadandunderstoodforproperandsafe operation WARNING The engine exhaust from this product contains...

Page 2: ......

Page 3: ...cals 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...

Page 4: ...ediately 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 BE...

Page 5: ...dy work shoes with non skid soles DONOTWEAROPENTOEDSHOES DONOTOPERATEUNITBAREFOOTED EXTENDED OPERATION EXTREME CONDITIONS Vibration and Cold It is believed that a condition called Raynaud s Phenomenon...

Page 6: ...er 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 pre...

Page 7: ...er 2 The emission control system for these engines is EM Engine Modifica tion An Emission Control Label is located on the engine This is an EXAMPLEONLY informationonlabel variesbyengineFAMILY AIRINDEX...

Page 8: ...9 1 Shield Plate l l l 10 3 5mm x 18 mm screws Shield Plate Gear Case l l l 11 1 Metal Shield l l l 12 1 Metal Shield Bracket l l l 13 3 5mm x 15mm screws Shield Gear Case l l l 14 2 5mm x 8mm screws...

Page 9: ...GRASS TRIMMER BRUSH CUTTER OPERATOR S MANUAL 9 19 17 18 24 25 7 8 9 10 5 6 4 11 3 5 20 21 22 23 15 3 14 12 7 13 16 MODEL SRM 311 PARTS...

Page 10: ...Circular steel blades for grass weeds or brush cutting applications Harness metal shield and U handle required for blade operation 14 METAL BLADE SHIELD Required when unit is equipped with blades Do n...

Page 11: ...e l O il R a tio 5 0 1 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...

Page 12: ...OPERATION Install Plastic Debris Shield Tools Required Screwdriver Locking Tool Parts Required Plastic Debris Shield Shield Plate three 3 5 x 18 mm screws WARNING DANGER The plastic shield is for use...

Page 13: ...er plate and plastic shield and set upper plate aside for use with blade installation Retain plastic shield shield plate and plastic shield hardware for conver sion back to nylon line operation 2 Alig...

Page 14: ...otch in gear housing and insert Locking Tool H to prevent splined shaft from turning Arrow on gear housing points to notch Tighten 10 mm nut securely 4 Insert Split Pin A in hole in PTO shaft and bend...

Page 15: ...arburetor swivel B 3 Loosen nut A and place threaded end of throttle linkage on carburetor Finger tighten nut A 4 Check throttle for freedom of movement and that wide open throttle low idle extremes a...

Page 16: ...lation of the metal shield A use of a shoulder harness B PLUS installation of a U Handle Kit C Model SRM 311U units include theU Handle parts required for steel blade operation Choosing the Correct Bl...

Page 17: ...t Harness P N 30100052131 Use of the Shoul der Waist Harness is required for blade operation and is recommended for ALL Trimmer Brush Cutter use The Shoulder Waist Harness suspends the trimmer from th...

Page 18: ...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 wi...

Page 19: ...rimer bulb C until fuel is visible and flows freely in the clear fuel tank return line Pump bulb an additional 4 or 5 times 4 Recoil Starter Lay the trimmer on a flat clear area and pull the recoil st...

Page 20: ...Recoil Starter 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 R...

Page 21: ...r u T r e l a e d o h 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...

Page 22: ...ertain 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 Level 1 Tool...

Page 23: ...arts are required if care is used during cleaning IMPORTANT To maintain proper engine operating temperatures cooling air must pass freely through the cylinder fin area This flow of air carries combust...

Page 24: ...crews 10 Connect spark plug lead to spark plug EXHAUST SYSTEM Spark Arrestor Screen Level2 Tools Required Cross Head Screwdriver Soft metal brush Wooden carbon scraper 4 mm Hex Wrench Parts Required S...

Page 25: ...retor is set in compliance with California Emission Regulations This carburetor does not have acceleration and high speed adjustment needles Idle Speed Adjustment Idle speed adjustment may be required...

Page 26: ...ease if necessary DO NOT over fill Drive Shaft SRM 311 311U Only SRM 311S Drive shaft is sealed 1 Loosen two 2 screws B and remove center locating screw C Pull gear box and shield from drive shaft 2 P...

Page 27: ...ol spindle until ends are even 4 Hold spool with the tap knob in your hand and opening toward you Place index finger between the two lines and wind line clockwise tightly and evenly 5 When approximate...

Page 28: ...ion and can result in blade failure Sharpening 8 tooth Blades Tool required Flat file preferred Electric grinder if special care is used Round rat tail file for gullet radius IMPORTANT If an electric...

Page 29: ...th fuel Plug defective Adjust to 65mm 0 026 in Clean or replace Clean or replace Replace plug Engine runs but dies or does not accelerate properly Air filter Air filter dirty Normal wear Clean or repl...

Page 30: ...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 are required 5 Tighten all th...

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

Page 32: ...oduct 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...

Page 33: ...f cutting attachment moves readjust carburetor according to Carburetor Adjustment instructions in this manual or see your ECHO Dealer otherwise serious personal injury may result 1 Stop Switch Start R...

Page 34: ...to operating speed STARTING WARM ENGINE The starting procedure 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 cutt...

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