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G

RASS

 T

RIMMER

/B

RUSH

 C

UTTER

O

PERATOR

'

S

 M

ANUAL

17

5. Choke

After engine fires (or 5 pulls), move choke lever back to Run (

)

position.  Hold throttle trigger and throttle trigger lockout fully
depressed, and pull recoil starter starter handle/rope until engine
starts and runs. Allow engine to run at partial throttle for approxi-
mately 10 seconds. Release throttle trigger, and allow unit to warm
up at idle for several minutes.

NOTE
If engine does not start with choke in “Run” position after 5 pulls,
repeat instructions.

6. Throttle Trigger

After engine warm-up, gradually depress throttle trigger to increase
engine RPM 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 attachment should not move at idle, otherwise serious personal
injury may result.

NOTE
If attachment moves, readjust carburetor according to “Carburetor
Adjustment” instructions in this manual or see your ECHO Dealer.

1. Stop Switch

Move stop switch button  (A) away from the STOP position.

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.

NOTE
Lightly place knee on drive shaft to stabilize unit during starting. Do
not apply excessive downward force or damage to unit can occur.

3. Recoil Starter

Lay the unit on a flat area and keep movable attachment parts clear
of all obstacles. Rapidly pull recoil starter handle/rope (D) until
engine fires.

NOTE
If engine does not start after 5 pulls, use Cold Start Procedure.

A

C

D

Summary of Contents for SRM-251U

Page 1: ...afeoperationandinstructionscarefully ECHOprovidesanOperator s ManualandaSafetyManual Bothmustbereadandunderstoodforproperandsafe operation Grass Trimmer Brush Cutter Operator s Manual MODEL SRM 251U X...

Page 2: ...Manual Safety Symbols and Important Information 3 International Symbols 3 Personal Condition and Safety Equipment 4 EquipmentCheck 6 EmissionControl 8 Description 7 Contents 9 Assembly 10 Plastic Shi...

Page 3: ...sed Choke Control Run Position ChokeOpen Do not use blades String lineonly IMPORTANT The enclosed message provides information necessary for the protec tion of the unit NOTE This enclosed message prov...

Page 4: ...tures are cooler WARNING DANGER Users of this product risk injury to themselves and others if the unit is used improperly and or safety precautions are not followed Proper clothing and safety gear mus...

Page 5: ...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 dev...

Page 6: ...UAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS EQUIPMENT CHECK WARNING DANGER Use only ECHO approved attachments Serious injury may result from the use of a non approved attachment combination ECH...

Page 7: ...decals are legible and that you understand and follow the instruc tions on them If a decal cannot be read a new one can be ordered from your ECHO dealer See PARTS ORDERING instructions for specific i...

Page 8: ...t a cut off knife the line will become too long the engine will overheat and engine damage may occur 13 PLASTICDEBRISSHIELDASSEMBLY Includedinplasticbag co pack MUST beinstalledonunitbeforeuse see Ass...

Page 9: ...x16mmscrews shieldmtg __ 1 3mmHexagonWrench __ 1 4mmHexagonWrench __ 1 8mmx55mmbolt __ 1 flatwasher __ 2 cableclips __ 1 Plastic Bag __ 3 5mmx15mmscrews shieldmount __ 2 5mmx8mmscrews brackettoshield...

Page 10: ...to remove 3 Remove locking tool Retain lower plate blade nut and cotter pin for future use with blade conversions 4 Align plastic debris shield F with the drive shaft and install on the bottom of the...

Page 11: ...de installation Retain plastic shield shield plate and plastic shield hardware for conver sion back to nylon line operation 2 Align hole in upper plate D with notch in gear housing G and insert lockin...

Page 12: ...t securely 4 Insert Split Pin A in hole in PTO shaft and bend pin legs around shaft counterclockwise to retain 10 mm nut IMPORTANT Never reuse a cotter pin install a new cotter pin each time a blade i...

Page 13: ...iner block to make necessary adjustments 6 Pivot retainer plate up to secure throttle cable cap and tighten screw 7 Connect ignition stop leads C and D 8 Bundle and secure ignition leads against engin...

Page 14: ...3 4 in diameter or larger 80 Tooth Brush Blade P N 69500120331 is designed for cutting brush and woody growth up to 64 mm 2 1 2 in diameter 22ToothClearingBlade 99944200130 isdesignedfordensethickets...

Page 15: ...tion IMPORTANT EchopremiumPowerBlendTM Universal2 StrokeOilmaybemixed at 50 1 ratio for application in all Echo engines sold in the past regardless of ratio specified in those manuals Handling Fuel WA...

Page 16: ...er is added IMPORTANT Stored two stroke fuel may separate ALWAYS shake fuel container thor oughly before each use STARTING COLD ENGINE WARNING DANGER The attachment will operate immediately when the e...

Page 17: ...DO NOT close the choke and do not depress throttle trigger to wide open position WARNING DANGER The attachment should not move at idle otherwise serious personal injury may result NOTE If attachment...

Page 18: ...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...

Page 19: ...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 20: ...lement 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 8 10in lengthofwire wi...

Page 21: ...LING SYSTEMS CLEANING Level2 Tools Required 3 4 mm Hex Wrench cleaning brush 25 or 50 mm 1or2in Parts Required None if you are careful IMPORTANT To maintain proper engine operating temperatures coolin...

Page 22: ...Screen Level2 Tools Required Cross Head Screwdriver Soft Metal Brush 4mmHexWrench Parts Required Spark Arrestor Screen Gasket 1 Remove spark plug lead 2 Remove one 1 muffler cover screw and muffler co...

Page 23: ...carburetor adjustments can be made During the break in period your engine performance will increase and exhaust emissions will stabilize Idle speed can be adjusted as required High Altitude Adjustmen...

Page 24: ...caps prevent exceeding emission limits and over rich adjustment but not over lean adjustment which can cause engine failure Do not exceed recommended HI speed engine R P M during operation or for long...

Page 25: ...rease if necessary DO NOT over fill Drive Shaft 1 Loosen two 2 screws B and remove center locating screw C Pull gear box and shield from drive shaft housing 2 Pull flexible cable from the drive shaft...

Page 26: ...one on each side of barrier 3 Wind both lines tightly and evenly one on each side of barrier in the direction of arrow on bottom of spool 4 Place ends of lines into notches in spool leaving 6 in prot...

Page 27: ...nsafe handling due to vibration and can result in blade failure Tool required Flatfile preferred Electricgrinderifspecialcareis used Round rat tail file for gullet radius 1 File each tooth at a 30 deg...

Page 28: ...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 e n i g n E s n u r 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...

Page 29: ...r reach an open flame or spark 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...

Page 30: ...ane unleaded DO NOT use fuel containing methyl alcohol more than 10 ethyl alcohol or 15 MTBE Oil PowerBlendTM PremiumUniversal2 StrokeOil Fuel Tank Capacity 0 42lit 14 2USfl oz RecoilStarterSystem i 3...

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

Page 32: ...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...

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