Grass Trimmer/Brush Cutter Operator's Manual MODEL, SRM - 340 Serial Number 03001001 - 03999999 WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. 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.
INTRODUCTION Welcome to the ECHO family. This ECHO product was designed and manufactured to provide long life and on-the-job dependability. Read and understand this manual and the SAFETY MANUAL you found in the same package. You will find both easy to use and full of helpful operating tips and SAFETY messages. THE OPERATOR'S MANUAL Read and understand this manual before operation. Keep it in a safe place for future reference.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL MANUAL SAFETY SYMBOLS AND IMPORTANT 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 those symbols and key words. This symbol accompanied by the words WARNING and DANGER calls attention to an act or condition that can lead to serious personal injury to operator and bystanders.
Shaft Decal P/N 89016054130 WARNING DANGER • This unit can be dangerous and cause serious injury if improperly used. To reduce injury risk to operator, helpers and bystanders, read and understand the Operator's and Safety manuals. • Blindness can occur from objects that are thrown or ricocheted even with shield in place. Operators, helpers and bystanders must wear ANSI Z87.1 approved eye protection. • Always wear hearing protection when operating unit.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SAFETY INSTRUCTIONS PERSONAL CONDITION AND SAFETY EQUIPMENT WARNING DANGER Trimmer/Brush Cutter users risk 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.
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 areas. Certain repetitive hand activities may put you at a high risk for developing a Repetitive Stress Injury (RSI). An extreme RSI condition is Carpal Tunnel Syndrome (CTS), which could occur when your wrist swells and squeezes a vital nerve that runs through the area.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 7 SAFE OPERATION 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. Provide Safety Instructions To All Operators • Provide all operators of this equipment with the Operator's Manual and Safety Manual for instructions on safe operation.
DESCRIPTION Your new Echo product has been factory pre-assembled for your convenience. Due to packaging restrictions, shield installation and other final assembly may be necessary. Check the contents carefully, and notify your retailer or ECHO Dealer immediately if any parts are missing or damaged. Use the contents list below to check for missing parts.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 15 MODEL SRM-340 PARTS 16 14 17 22 21 20 7 19 18 6 5 4 8 3 2 1 9 11 10 12 13 23 9
MODEL SRM-340 PART DESCRIPTIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System, and Recoil Starter. GRIP - Rear (right hand) handle. THROTTLE TRIGGER LOCKOUT - This lever must be held during acceleration. Operation of the throttle trigger is prevented unless throttle trigger lockout lever is engaged. STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SPECIFICATIONS MODEL ---------------------------------------------------------- SRM-340 Length ------------------------------------------------------------ 1835 mm (72.2 in.) Width ------------------------------------------------------------- 330 mm (13.0 in.) Height ------------------------------------------------------------ 260 mm (10.2 in.) Weight (dry) w/Cutter Head ----------------------------------- 7.3 kg (16.1 lb.
ASSEMBLY DRIVE SHAFT/POWER HEAD A Tools Required: 4 mm Hex Wrench Parts Required: Power Head, Drive Shaft Assembly 1. 2. Stand power head upright on a level surface. Loosen the two (2) drive shaft clamp bolts at engine drive shaft clamp, and remove center drive shaft location bolt (A). 3. Carefully fit driveshaft assembly to engine making sure that inner drive shaft engages into clutch mount.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 13 NYLON HEAD INSTALLATION G Tools Required: Locking Tool, 17x19 mm Scrench I H Parts Required: Nylon Line Head. 1. Make sure plastic debris shield (F) is properly aligned, and upper plate (D) is installed on splined PTO shaft. 2. Align hole in upper plate (D) with notch in gear housing (G), and insert locking tool (H) to prevent splined shaft from turning. 3.
Install Blade Tools Required: Locking Tool, Scrench. Parts Required: Upper Plate w/ 20 mm pilot, Lower Plate, 10 mm Nut w/L.H. threads, 2 x 25 mm Cotter Pin, Blade. 1. Install upper plate (D) on splined PTO shaft, pilot side down. Blade installation requires Upper Plate (D) with 20 mm pilot. 2. 3. 4. D M H L Install Blade (L) on upper plate pilot. Blades must be installed so that rotation arrow on blade matches rotation of unit: teeth toward direction of rotation (See debris shield decal).
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL THROTTLE LINKAGE AND IGNITION LEADS Tools Required: 8 x 10 mm Open-end Wrench Parts Required: Cable Clips 1. Unscrew air filter cover knob and remove cover. 2. Place inner throttle cable in slot of carburetor 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 are adjusted properly.
PRE - OPERATION OPERATION WITH BLADES Preparing the Trimmer/Brush Cutter for Blade Use WARNING DANGER Blade use DEMANDS specific Trimmer/Brush Cutter configuration. Operation without specified shield, handle, and harness can result in serious personal injury. Grass/Weed Blades require: Installation of metal shield (A), accessory Barrier Bar (B) P/N 99944200455, and use standard harness (C). A NOTE The Barrier Bar is NOT A HANDLE and should not be gripped when using or carrying the unit.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL Plastic/Nylon Grass/Weed Blades may be used where ever the nylon line head is used. DO NOT use these blades for heavy weeds or brush! 8 Tooth Grass Weed Blade - use for grass, garden vegetation, and thick weeds. DO NOT use this blade for brush or heavy woody growth, 19 mm (3/4 in.) diameter or larger. SRM-340 Series P/N 69600121431 80 Tooth Brush Blade - use for cutting brush and woody growth up to 64 mm (2-1/2 in.) diameter.
FUEL Fuel Requirements Gasoline - Use 89 Octane [(R + M)/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain up to 15% MTBE (methyl tertiary-butyl ether). Gasohol containing methyl (wood) alcohol is NOT approved. Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FC Standards, must be used. 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.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL OPERATION STARTING COLD ENGINE WARNING DANGER The cutting attachment should not rotate at idle. If attachment rotates, readjust carburetor according to "Carburetor Adjustment" instructions in this manual or see your ECHO Dealer, otherwise serious personal injury may result. 1. 2. Stop Switch Move stop switch button (A) forward, away from the STOP position. A Choke Lever Move choke lever (B) to Cold Start ( ) Position. 3.
STARTING WARM ENGINE WARNING DANGER A The cutting attachment should not rotate at idle. If attachment rotates, readjust carburetor according to "Carburetor Adjustment" instructions in this manual or see your ECHO Dealer, otherwise serious personal injury may result. 1. Stop Switch Move stop switch button (A) away from the STOP position. 2. Recoil Starter Lay the unit on a flat clear area and pull the recoil starter handle (D) until the engine fires.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 21 MAINTENANCE Your ECHO trimmer is designed to provide many hours of trouble free service. Regular scheduled maintenance will help your trimmer achieve that goal. If you are unsure 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 Dealer do it, each maintenance task has been graded.
AIR FILTER Level 1. Tools required: 25-50 mm (1 or 2 in.) medium bristle paint brush. Parts required: 90030 REPOWERTM 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 the air cleaner area. 2. Remove the air cleaner cover. Clean and inspect the element for damage. If element is fuel soaked or very dirty, replace. 3.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SPARK PLUG Level 2. Tools Required: Scrench (combination socket wrench & screw driver) Feeler gauge, preferably a wire gauge. Brush. Parts Required: Spark Plug, NGK BPM-7A 1. Remove spark plug and check for wear or fouling. 2. Clean the plug or replace with a new one. DO NOT sand blast to clean. Remaining sand will damage engine. 3. Adjust spark plug gap by bending outer electrode. 4. Install spark plug and tighten to 145-155 kg/cm (125-135 in. lb.). 0.
4. Remove grass and leaves from the grid between the recoil starter and fuel tank. 5. Position cover over muffler, and secure with three (3) screws. 6. Connect spark plug lead to spark plug. EXHAUST SYSTEM Spark Arrestor Screen Level 2. Tools Required: Cross Head Screwdriver, Soft metal brush, Wooden carbon scraper, 4 mm Hex Wrench Parts Required: Screen P/N 14590555730 Gasket P/N 14586655730 1. Remove three (3) screws from muffler cover (A) and remove. 2.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL CARBURETOR ADJUSTMENT Level 2. Tools required: Screwdriver, Tachometer (ECHO P/N 99051130017). Parts required: None. NOTE Every unit is run at the factory and the carburetor is set in compliance with emission regulations. In addition, the carburetor is equipped with HI and LO needle adjustment limiters that prevent settings outside acceptable limits. 1. Before adjusting the carburetor, clean or replace the air filter and spark arrester screen. 2.
LUBRICATION Level 1. Tools Required: 8 mm Open-end Wrench, Screwdriver, Clean Rag. Parts Required: ECHO® LUBETM 8 oz. (P/N 91014) or Lithium Base Grease. Gear Housing 1. Clean all loose debris from gear box. 2. Remove plug (A) and check level of grease. 3. Add grease if necessary. DO NOT over fill. A NYLON LINE REPLACEMENT Level 1 Tools Required: None Parts Required: ECHO 0.105 in. Nylon Trimmer Line 15 m (50 feet) long. 1. Shut engine off. Lay unit on the ground with head assembly up. A 2.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 3. 27 Use one piece of nylon line (D) and thread through the molded loop (E) on the spool spindle until ends are even. E 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 approximately 15-20 cm ( 6- 8 in.) of line remains, place lines in spool notches (F). D F F 6.
SHARPENING METAL BLADES Of the three styles of metal blades that are approved for use on the ECHO Brush Cutter, only the 8-tooth blade can be sharpened as an operator maintenance item. The clearing blade and 80 tooth blade require professional service. Before sharpening, CLOSELY inspect blade for cracks (look at the bottom of each tooth and the center mounting hole closely), missing teeth, and bending. If ANY of these problems are discovered, replace the blade.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL TROUBLESHOOTING EN GIN E PR OB LEM TR OU B LESH OOTIN G C H AR T Problem C h eck Status Fuel at carburetor No fuel at carburetor No fuel at cyli nder Engi ne cranks starts hard/ doesn't start Engi ne runs, but di es or does not accelerate properly C au se R emedy Fuel strai ner clogged Fuel li ne clogged C arburetor C lean or replace C lean or replace See your Echo dealer C arburetor See your Echo dealer Fuel at cyli nder Muffler wet wi th fuel Fuel
STORAGE 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) Do not store your unit for a prolonged period of time (30 days or longer) without performing protective storage maintenance which includes the following: 1.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL NOTES 31
SERVICING INFORMATION PARTS Genuine ECHO Parts and ECHO REPOWER™ Parts and Assemblies for your ECHO products are available only from an Authorized ECHO Dealer. When you do need to buy parts always have the Model Number and Serial Number of the unit with you. You can find these numbers on the engine housing. For future reference, write them in the space provided below. Model No. ________________ S.N.
