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  5. Operator's Manual

Echo srm-251 Operator's Manual

Summary of srm-251

  • Page 1

    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. Grass trimmer/brush cutter operator's manual model srm - 251 srm - 251e x7502021603 x750007283 03/06.

  • Page 2: ’

    2 specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publica- tion, but are subject to change without notice. Illustra- tions may include optional equipment and accessories, and may not include all standard equipment. T able of c ontents...

  • Page 3

    G rass t rimmer /b rush c utter o perator ' s m anual 3 international symbols hot surface carburetor adjustment - idle speed carburetor adjustment - high speed mixture description symbol symbol "warning, see operator's manual wear eye, ear and head protection emergency stop fuel and oil mixture fing...

  • Page 4

    4 physical condition your judgment and physical dexterity may not be good: • if you are tired or sick, • if you are taking medication, • if you have taken alcohol or drugs. Operate unit only if you are physically and mentally well. Eye protection wear eye protection that meets ansi z87.1 or ce requi...

  • Page 5

    G rass t rimmer /b rush c utter o perator ' s m anual 5 warning danger do not operate this product indoors or in inadequately ventilated areas. Engine exhaust contains poisonous emissions and can cause serious injury or death. Read the manuals • provide all users of this equipment with the operator’...

  • Page 6

    6 equipment check warning danger use only echo approved attachments. Serious injury may result from the use of a non-approved attachment combination. Echo, inc. Will not be responsible for the failure of cutting devices, attachments or accessories which have not been tested and approved by echo. Rea...

  • Page 7

    G rass t rimmer /b rush c utter o perator ' s m anual 7 d escription p/n 89022809560 p/n 89016054130 1 2 3 4 5 6 7 8 9 13 11 12 14 17 18 15 16 p/n 89016006361 10 locate these safety decals on your unit. Make sure the decals are legible and that you understand and follow the instructions on them. If ...

  • Page 8

    8 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. ...

  • Page 9

    G rass t rimmer /b rush c utter o perator ' s m anual 9 c ontents the echo product you purchased has been partially assembled for your convenience. Due to packaging restrictions, installation of the plastic debris shield, nylon line head, and positioning of the front handle may be necessary. After o...

  • Page 10

    10 a ssembly tools required: screwdriver, head locking tool, 17x19mm t-wrench parts required: plastic shield, shield plate, three (3) 5mm x 16mm screws, nylon line head plastic shield installation (for nylon line operation) note the plastic shield is for use with the nylon line head only. 1. Remove ...

  • Page 11

    G rass t rimmer /b rush c utter o perator ' s m anual 11 front handle installation note label shows minimum spacing for front handle location. 1. Position front handle for comfortable operation and secure screws. Min spacing.

  • Page 12

    12 o peration fuel notice: use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor performance, or severe engine damage and void the product warranty. Read and follow instructions in the storage section of this manual. Fuel requirements gasoline - us...

  • Page 13

    G rass t rimmer /b rush c utter o perator ' s m anual 13 2. Choke move choke lever (b) to cold start position ( ). 3. Purge bulb pump purge 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 unit on a fl...

  • Page 14

    14 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 c...

  • Page 15

    G rass t rimmer /b rush c utter o perator ' s m anual 15 / t n e n o p m o c m e t s y s e c n a n e t n i a m e r u d e c o r p d ' q e r l l i k s l e v e l r o y l i a d e r o f e b e s u y r e v e l e u f e r 3 s h t n o m 0 9 r o s r u o h 6 s h t n o m 0 7 2 r o s r u o h y l r a e y 0 0 6 s r...

  • Page 16

    16 air filter level 1. Tools required: cleaning brush 25 or 50 mm (1 or 2 in.) parts required: 90008 repower tm air & fuel filter kit. 1. Close choke (cold start position [ ]). This prevents dirt from entering the carburetor throat when the air filter is removed. Brush accumulated dirt from air clea...

  • Page 17

    G rass t rimmer /b rush c utter o perator ' s m anual 17 spark plug level 2. Tools required: t-wrench, feeler gauge, soft metal brush. Parts required: repower tm tune-up kit p/n 90074 important use only ngk bpm-8y spark plug (bpmr-8y in canada) otherwise severe engine damage may occur. 1. Remove spa...

  • Page 18

    18 1. Remove spark plug lead (a). 2. Remove air filter cover (b). 3. Remove one (1) muffler cover screw and muffler cover (c). 4. Remove two (2) screws and engine cover (d). Important do not use a metal scraper to remove dirt from the cylinder fins. 5. Use brush to remove dirt from the cylinder fins...

  • Page 19

    G rass t rimmer /b rush c utter o perator ' s m anual 19 cylinder exhaust port level 3. Important the cylinder exhaust port must be 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 re...

  • Page 20

    20 before adjustment check that: • air filter is clean and properly installed. • spark arrestor screen and muffler are free of carbon. • nylon line head with lines trimmed to 8 in. Is installed. Initial adjustment 1. With engine off, turn hi speed screw (c) counterclockwise to stop. 2. Turn lo speed...

  • Page 21

    G rass t rimmer /b rush c utter o perator ' s m anual 21 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 housing, wipe clean and recoat with a thin coating [15 ml (1/2 oz.)] ...

  • Page 22

    22 nylon line replacement level 1. Parts required: echo 2.4mm (0.095 in.) nylon trimmer line 12m (40 feet [two 20 ft. Sections]) echomatic pro trimmer head 1. Do not push spool in. Hold drum and turn spool clockwise until peg clicks and disappears from hole. Pull spool out of drum. 2. Place ends of ...

  • Page 23

    G rass t rimmer /b rush c utter o perator ' s m anual 23 t r a h c g n i t o o h s e l b u o r t m e l b o r p e n i g n e m e l b o r p k c e h c s u t a t s e s u a c y d e m e r e n i g n e - s k n a r c / d r a h s t r a t s t ' n s e o d t r a t s r o t e r u b r a c t a l e u f t a l e u f o n...

  • Page 24

    24 s torage warning danger during operation the muffler or catalytic muffler and surrounding cover become hot. Always keep exhaust area clear of flammable debris during transportation or when storing, otherwise serious property damage or personal injury may result. Long term storage (over 30 days) d...

  • Page 25

    G rass t rimmer /b rush c utter o perator ' s m anual 25 s pecifications models --------------------------------------------------- srm-251, srm-251e length ------------------------------------------------------- 1800 mm (70.9 in.) width -------------------------------------------------------- 245 m...

  • Page 26

    26 notes.

  • Page 27

    G rass t rimmer /b rush c utter o perator ' s m anual 27 notes.

  • Page 28

    Echo, incorporated 400 o akwood r oad l ake z urich , il 60047 www.Echo-usa.Com dealer? Call 1-800-432-echo or www.Echo-usa.Com consumer product support 1-800-673-1558 8:30 - 4:30 mon - fri c.S.T. Additional or replacement manuals safety manuals in english/spanish or english/french are available, fr...