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OPERATOR’S MANUAL
ECHO
TRIMMER/
BRUSHCUTTER
SRM-400
WARNING DANGER
READ INSTRUCTIONS CAREFULLY AND FOLLOW RULES FOR
SAFE OPERATION.
FAILURE TO DO SO COULD RESULT IN SERIOUS INJURY.
ECHO, INCORPORATED
X750-002 74 0
400 Oakwood Road, Lake Zurich, Illinois 60047-1564
X750216-0500
Phone : 847-540-8400
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INTRODUCTION The ECHO Trimmer/Brushcutter, model SRM-400 This manual provides the information necessary for is lightweight, high performance gasoline powered assembly, adjustment, operation and maintenance rotary trimmer which is designed for brushcutting, of your unit. weed control and grass trimming in areas which are difficult to control by any other means. The trimmer is equipped with a safety shoulder harness, and the excellent balance characteristics plus the available power, ensures comfo
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RULES FOR SAFE OPERATION SAFETY INSTRUCTIONS WARNING DANGER 1. Do Not operate the unit when you are 1. Do Not smoke while handling gasoline. fatigued. 2. Do Not operate if other people or animals 2. Do Not refuel a hot engine. Wait unit it cools. are in the work area. 3. Do Not overfill the tank. Spiled fuel must be 3. Do Not operate the unit without the shield wiped up. correctly in position. 4. Always stop the engine when refueling. 4. Do Not operate in a confined area. Carbon mon
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NOMENCLATURE HAVE PARTS Gear housing Decompression device Drive shaft assembly Ignition switch Shield Muffler Spark plug Throttle trigger Grip Choke lever Air cleaner cover Shoulder harness Starter handle Fuel tank TECHNICAL DATA SRM-400 Dimension L × W × H cm 186 × 70 × 43 (73.2 in × 27.6 in × 16.9 in) Masses kg 9.9 (21.8 lb): without shoulder harness and cutter head Engine Type Air cooled two stroke single cylinder Displacement mL (cm³) 42.7 (2.6 cu in) Max revolution r/min 10,000 Carburetor
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ASSEMBLING DRIVE SHAFT • Stand engine uprignt on a level floor. • Loosen bolts at drive shaft end of the engine. • Fit drive shaft assembly ensuring that the drive shaft is correctly engaged. • Tignten bolts to fasten drive shaft assembly. Bolts WARNING DANGER NEVER START ENGINE WITHOUT DRIVESHAFT ASSEMBLY INSTALLED. THIS COULD RESULT IN SERIOUS INJURY. Right hand grip assembly HANDLE Insert right hand grip assembly into right hand U- handle and fit it to the slot for rotation prevention of
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Loosen 4 right handle assembling bolts and insert right hand U-handle into right handle assembling Right handle assembling bolt bracket. (toward direction of arrow ) Right handle assembling bracket Fix the right hand U-handle by tightening 4 right handle assembling bolts lightly. Right hand U-handle To engine Adjust each inclination of right and left handles to Adjustment of right handle inclination (left/right) adequate position (easy to operate) and tighten firmly handle assembling bolt
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OPERATION GENERAL CHECK • Eneure that all nuts, screws and bolts installed Oil 1 are properly tightened. FUEL STATEMENT Gasoline 50 R+M GASOLINE : Use 89 octane ( ) gasoline or 2 gasohol known to be good quality. Gasohol may contain maximum 10% ethyl (grain) alcohol or 15% MTBE (methyl tertiary-butyl ether). Gasohol Fuel mix chart containing methyl (wood) alcohol is not approved. (50 : 1) OIL : ECHO brand premium two-stroke 50:1 oil is US METRIC reguirred. GAS OIL GAS OIL Mix oil and gasoline
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STARTING WARM ENGINE Decompression device • When engine is warm, start it by pulling recoil starter rope with switch positioned at START/ RUN. (Keep choke lever in RUN (open) position) • Press the decompression device. • If engine does not start in a few tries, follow same procedures as starting a cold. HOLD THE UNIT FIRMLY. STOPPING ENGINE • Release throttle trigger and allow to run at an idle speed. • Side ignition switch to “STOP” position. OPERATING THE TRIMMER • Adjust handle to a convenien
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WARNING DANGER WARNING DANGER DO NOT ALLOW EITHER PEOPLE OR • BEFORE STARTING UP THE ENGINE, ANIMALS INTO THE WORK AREA. MAKE SURE THAT THE CUTTER BLADE IS ALWAYS WEAR SAFETY GOGGLES WHEN NOT CONTACTING ANYTHING. CUTTING. • WHEN TWO OR MORE OPERATORS ARE DRESS PROPERLY - AVOID LOOSE WORKING TOGETHER, ENSURE THAT A CLOTHING. SAFE DISTANCE IS KEPT BETWEEN WHEN GRASS OR WEEDS HAVE CLOGGED THEM. THE CUTTER HEAD AFFECTING NORMAL OPERATION, FIRST, STOP THE ENGINE AND THEN REMOVE THE DEBRIS.
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1. REPLACING LINE 15 cm (6 in) 1C 1B A. Remove spool by turning knob clockwise, 1D “right”, and separating parts. B. Thread a 6 m (20 feet) length of 2.4 mm (0.095 in) or 2.7 mm (0.105 in) ECHO line through hole in spool so that ends are the same length. C. Wind both ends of line tightly and evenly clockwise (see arrows on spool), and wind from side to side without twisting the lines. SPOOL D. Secure ends of line temporarily with about 15 cm (6 in) extending out. 2.REPLACING SPOOL HOUSING 2B 2A
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SHOULDER HARNESS • Install the harness over the both shoulders and adjust shoulder straps so that the quick release latch rests low on the right hand side. PULL • Attach the trimmer/brushcutter to the harness by means of the quick release latch. • Make some practice sweeps as with a trimmer Quick and readjust the harness as necessary for release comfort and to maintain the cutter parallel to the latch ground. WARNING DANGER IN CASE OF EMERGENCY, PULL THE QUICK RELEASE LATCH TO DISCONNECT TH
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MOWING • The nylon line will effectively mow large areas of heavy grass and/or weeds. Use the standard 12.5 to 15 cm ( 5 to 6 in) of line and operate at full throttle. • When mowing cultivated areas such as lawns hold the cutter head pararell to the gound to avoid scalping. SCALPING 1. The cleaning of weeds and grass right down to the earth can be accomplished very easily with the nylon line. 2. Scalping around trees and brushes is particularly effective, but care should be exercised not to brui
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WARNING DANGER 6. SHOULD THE BRUSHCUTTER BE SAFETY PRECAUTIONS OPERATED FOR AN EXTENDED PERIOD 1. ALWAYS USE THE CORRECT BLADE FOR OF HIGH TEMPERATURES, THE GEAR THE JOB AS RECOMMENDED. BOX MAY BECOME VERY HOT. IF TOO HOT TO TOUCH, ALLOW THE UNIT 2. BE CAREFUL NOT TO HIT ROCKS, TO COOL DOWN, CHECK THE STONES, TREE STUMPS OR ANY LUBRICATION AS PER ‘MAINTENANCE’ FOREIGN OBJECT WHICH MAY DAMAGE AND CONTINUE TO OPERATE IF IN THE BLADE. ORDER. 3. DO NOT CUT INTO THE GROUND TO 7. TO AVOID ENGINE
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INSTALLING THE BLADE 1. The installation of the 8 tooth weed/grass blade (option) and the 80 tooth brush is exactly the same. Brush Blade Weed/Grass Blade (80 tooth) (8 tooth) 2. Rotate the drive shaft until the holes in the Upper fixing plate upper fixing plate and the gear box are aligned. Insert the locking tool. Locking tool 3. Remove the nylon line line head, if fitted, by Box wrench turning in a clockwise direction. 4. Install the blade ensuring that it is centered correctly on the fixing
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HEAVY WEED CUTTING • Install the 8 tooth 20 cm (8 in) blade. (option) • Observing all precautions as listed in this manual, start the engine and using full throttle, swing the blade in an arc as you move forward slowly. The cutter rotates counter-clockwise and the debris will be pushed backwards so the work area will always be visible. BRUSHCUTTING • Install the 80 tooth blade. • Proceed exactly as for weed and grass cutting. SMALL TREES • The unit will effectively cut small trees up to 7.5 cm (
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MAINTENANCE AND CARE - ALWAYS KEEP THE UNIT CLEAN - AIR FILTER Latch • Clean before using the unit. - Close choke. Disengage latch and remove air cleaner cover. Air filter - Remove air filter. Air cleaner cover - Brush off dust lightly or clean with compressed air. - Reinstall cover and engage latch. FUEL STRAINER • Check periodically. - Do not allow dust to enter into fuel tank. - Clogged strainer will cause difficulty in starting engine or abnormalities in engine performances. - Pick up fuel
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SPARK PLUG • Check periodically. • Standard spark plug gap is 0.6 to 0.7 mm (0.024 to 0.028 in). • Replace if either electrode is worn or if the insulator is fouled by oil or other deposits. 0.6 - 0.7 mm (.024 - .028 in) • TORQUE = 14.2 to 15.2 N•m (125 to 135 in lb) CAUTION Do not over torque. GEAR HOUSING Gear housing • Remove the bolt every 50 hours and check. • Replenish as necessary, but do not overfill. - Shell delpena or good quality lithium multi Bolt grease is recommendable. CARBURETOR
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EIGHT CUTTER BLADE • Use only the blade designated by the 30° manufacturer for this model. Cutter edge • When crack is noticed on the blade, never use 2R it, but replace with a new one. • Round the teeth bottom for 1- 2 mm radius in Not sharpened order to avoid the crack using a round file. 2mm - Rounded part is not to be sharpened. Tooth bottom - Sharpen each cutter equally so as to retain the balance of the blade. - In sharpening the edge by use of a grinder, do not cool the cutter abruptly by
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Fuel strainer clogged Clean. Fuel is not Table 1 reaching Fuel pipe clogged Clean. carburetor Suction insufficient Make sufficient. Fuel is not reaching Strainer clogged Clean. cylinder Carburetor out of order Disassemble and check. C.D.I. module defective Remove and replace. Ignition coil defective Remove and replace. No spark at high Wire connection defective Reconnect. tension cord end High-tension cord connection Repair as necessary. defective Switch is grounded Switch on. Insulator cracked
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Table 2 Improper fuel used Use fuel with correct mixing ratio. Never use gasoline of poor quality. Spark plug defective (burnt) Replace. As cooling fins clogged, air Clean fins. Engine overheated does not pass well Excessive deposits in Disassemble and remove carbon. combustion chamber Plug damaged or fouled Replace or clean. Firing function defective Combustion poor due to Check wiring. defective wiring High-speed needle Readjust. setting incorrect Carburetor defective Carburetor overflow Refer
