Grass Trimmer/Brush Cutter Operator's Manual MODELS, Type 1E SRM - 2100SB Serial Number 0533424 & Up SRM - 2400SB Serial Number 0563001 & Up WARNING DANGER Read rules for safe operation and instructions carefully. ECHO provides an Operator's Manual with this unit and a separate Operator's Manual and Safety Manual (if available) with the attachment. All manuals must be read and understood for proper and safe operation. Failure to do so could result in serious injury.
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 and what they mean to you. 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 89016844830 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/brush cutter. Eye Protection Proper Clothing Wear eye protection that meets ANSI Z87.1 or CE requirements whenever you operate the 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 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 ALL OPERATORS OF THIS EQUIPMENT WITH THE OPERATOR'S MANUAL AND INSTRUCTIONS FOR SAFE OPERATION.
CONTENTS Contents List MODELS Items SRM-2100SB SRM-2400SB 1 - Power Head w/Upper Drive Shaft Assembly √ √ 1 - Lower Drive Shaft Assembly √ √ 1 - Plastic Bag (co-pack) √ √ - 1, Operator's Manual √ √ - 1, Safety Manual √ √ - 1, Warranty Registration Card √ √ - 1, Limited Warranty Statement √ √ - 1, Plastic shield √ √ - 1, Tool Bag √ √ --1, 8 mm x 10 mm wrench √ √ --1, scrench √ √ --1, locking tool √ √ - 1, Nylon Trimmer Head √ √ - 1, Safety Glasses √ √ - 1, 2-Str
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 22 13 14 21 20 15 19 16 17 18 8 7 6 5 4 3 2 9 11 10 12 1 9
1. POWER HEAD - Includes the Engine, Clutch, Fuel System, Ignition System and Recoil Starter. 2. GRIP - Rear (right hand) handle. 3. THROTTLE TRIGGER LOCKOUT - Operation of the throttle trigger is prevented unless throttle trigger lockout lever is engaged. 4. STOP SWITCH - "SLIDE SWITCH" mounted on top of the Throttle Trigger Housing. Move switch FORWARD to RUN, BACK to STOP. 5.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SPECIFICATIONS MOD EL SR M-2100SB SR M-2400SB Shaft Length 1500 mm (59 i n.) Uni t Wi dth 330 mm (13.0 i n.) Uni t Hei ght Wei ght (dry) w/cutti ng attachment Engi ne Type Bore 300 mm (11.8 i n.) 360 mm (12.4 i n.) 5.4 kg (11.9 lb.) 5.6 kg (12.4 lb.) Ai r cooled, two-stroke, si ngle cyli nder gasoli ne engi ne 32.2 mm (1.27 i n.) 26.0 mm (1.04 i n.
ECHO APPROVED OPTIONAL ATTACHMENTS WARNING DANGER • Use only ECHO approved attachments for Pro Attachment SeriesTM models. Serious injury may result from the use of non-approved attachment combinations. Read and comply with all safety instructions listed in this manual and attachment manual. • ECHO, INC. will not be responsible for the failure of cutting devices, attachments, or accessories which have not been tested and approved by ECHO for use with this Pro Attachment SeriesTM unit.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 13 ASSEMBLY POWER HEAD SHAFT/LOWER SHAFT ASSEMBLY B D Tools Required: None Parts Required: Split Boom Attachment Assembly 1. Set Power Head/Shaft Assembly on a level surface. 2. Pull locator pin (A) out, and turn counter-clockwise 1/4 turn to lockout position. 3. Carefully fit attachment drive shaft assembly into coupler (B) to decal assembly line (C), making sure that the inner lower drive shaft engages into the square upper drive shaft socket.
NYLON LINE HEAD INSTALLATION Tools Required: Head Locking Tool A Parts Required: Nylon Line Head. C 1. Align locking hole in upper plate (B) with notch in edge of gear housing and insert head locking tool (A). 2. Remove plastic sleeve from P.T.O. shaft (C). 3. Be sure upper plate (B) remains on P.T.O. shaft. 4. Thread line head onto P.T.O. shaft by turning it counter clockwise until head is tight against upper plate (B). 5. Remove locking tool (B).
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL PRE - OPERATION OPERATION WITH BLADES Preparing the Trimmer/Brush Cutter for Blade Use WARNING DANGER Blade use DEMANDS specific Brush Cutter configuration. Operation without specified shield and harness can result in serious personal injury. Follow installation instructions included in optional kits. Plastic and Nylon Blades Require: "Blade Conversion Kit," P/N 99922200415 (metal shield [A], shoulder harness [B], and Barrier Bar [C]).
8 Tooth Weed/Grass Blade P/N 69600120331 is designed for grass, garden debris and thick weeds. DO NOT use this blade for brush or heavy woody growth, 3/4" in. (19 mm) diameter or larger. Brush/Clearing Blade P/N 69500120331 is designed for cutting brush and woody growth up to 3" in. (76 mm) diameter. Use Shoulder/Waist Harness P/N 99944200200 The Shoulder/Waist Harness when used in a trimming operation with nylon line head suspends the trimmer from the operator's shoulder and reduces operator fatigue.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 17 FUEL Fuel Requirements Gasoline - Use 89 Octane [R +2 M ] (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.
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. NOTE Refer to the attachment Operator's Manual and Safety Manual (if included) for proper and safe operating techniques. A All Models 1. Stop Switch Move stop switch button (A) forward away from the STOP position. 2.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SRM-2100SB 4A. Recoil Starter Lay the unit on a flat clear area. Firmly grasp rear handle grip and throttle lockout with left hand and fully depress throttle trigger to wide open position. Rapidly pull recoil starter handle/ rope (D) until engine fires (or maximum five [5] pulls). 5A. Choke After engine fires (or five [5] pulls), move choke to “Run” position.
3. Recoil Starter Lay the unit 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 A 1. Throttle Release throttle, and allow engine to return to idle before shutting engine off. 2. Stop Switch Move stop switch button (A) backward to STOP position. WARNING DANGER If engine does not stop when stop switch is moved to STOP position, close choke - COLD START position - to stall engine.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL MAINTENANCE INTERVALS COMPONENT/ SYSTEM MAINTENANCE PROCEDURE REQ'D SKILL LE V E L DAILY OR BEFORE U SE EVERY R E FU E L 3 MONTHS OR 90 HOURS 6 MONTHS OR 270 HOURS YEARLY 600 HOURS Recommended Echo Dealer Maintenance Procedures Cylinder Exhaust Port Inspect/Clean/Decarbon 3 I/C Do-It-Yourself Maintenance Procedures Air Filter Inspect/Clean/Replace 1 I/C Choke Inspect/Clean 2 I/C Fuel Filter Inspect/Replace 1 Fuel System, leaks Inspect/Re
AIR FILTER Level 1. Tools required: Cleaning brush, 25 - 50 mm (1 or 2 in.) medium bristle paint brush. Parts required: SRM-2100SB 90008 REPOWERTM AIR & FUEL FILTER KIT. SRM-2400SB 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.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SPARK PLUG Level 2. Tools required: Scrench (combination socket wrench and screw driver), Feeler gauge (preferably a wire gauge) , Brush. Parts Required: Spark Plug, SRM-2100SB NGK BPM-7A SRM-2400SB NGK BPM-7Y 1. Remove spark plug and check for fouling, worn and rounded center electrode. 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.
3. Use the wooden stick or brush to remove dirt form cylinder fins. IMPORTANT Do not use a metal scraper to remove dirt from the cylinder fins. 4. Remove grass and leaves from the grid between the recoil starter and fuel tank. 5. Assemble components in reverse order. NOTE When installing the engine cover, be certain the tab of the metal deflector shield is in the slot of the engine cover. EXHAUST SYSTEM Spark Arrestor Screen Level 2.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL CARBURETOR ADJUSTMENT SRM-2100SB Emission Models 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.
CARBURETOR ADJUSTMENT SRM-2400SB Emission Models 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. This carburetor does not have acceleration and high speed adjustment needles. Do not attempt to use carburetor adjustment procedures provided in the Warranty/ Emissions Booklet. 1. Check idle speed and reset if necessary.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL Drive Shaft (Lower) IMPORTANT Lower and upper drive shaft must be lubricated with high temperature automotive grease every 25 hours of operation, otherwise drive shaft assembly overheating and failure can result. B A 1. Loosen two (2) screws (A) and remove center locating screw (B). Pull gear box and shield from drive shaft housing. 2. Pull flexible cable from the drive shaft housing, wipe clean and re-coat with a thin coating [15 ml (1/2 oz.
NYLON LINE REPLACEMENT Level 1. Tools required: Head locking tool (if head is to be removed) Parts Required: ECHO 0.095" Nylon Trimmer Line 6m (20 ft.) long. 1. Shut engine off. Lay unit on the ground with head assembly up. B 2. Hold drum (A) and turn spool (B) CW (clockwise) until it stops. Pull spool from drum. DO NOT push in on spool when turning. 3. Use one piece of new nylon line (C) 6m (20 ft.) long and thread through the molded loop (D) on the spool.
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL SHARPENING METAL BLADES Three styles of metal blades are approved for use on the ECHO Brush Cutter. The 8-tooth blade can be sharpened during normal maintenance. 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.
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 Mi xture too ri ch Open choke C lean/repl
GRASS TRIMMER/BRUSH CUTTER OPERATOR'S MANUAL 31 STORAGE Long Term Storage (over 30 days) 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. 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.
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. _____________ SN.
SUPPLEMENT TO OPERATOR'S MANUAL PART NUMBER X7532277103 (89861056733) FOR MODEL: SRM-2100SB, SN 520301 & UP DESCRIPTION Page 7 EMISSION CONTROL IMPORTANT ENGINE INFORMATION ENGINE FAMILY : 2EHXS.0214RA DISPLACEMENT : 21.2cc EMISSION COMPLIANCE PERIOD : 300 HRS. THIS ENGINE MEETS U.S. EPA PHASE 2 EMISSION REGULATIONS FOR SMALL NONROAD ENGINES. REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
