2INTRODUCTIONWelcome 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 willfind both easy to use and full of helpful operating tips and SAFETY messages.WARNING DANGERRead 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.THE OPERATOR 'S MANUAL–contains specifications and information for operation, starting,stopping, maintenance, storage and assembly specific to this product.THE SAFETY MANUAL–explains possible hazards involved with the use of Grass Trimmers andBrush Cutters and what measures you should take to insure safeoperation.Operation .......................................................................... 21- Starting Cold Engine ................................................. 21- Starting Warm Engine ............................................... 22- Stopping Engine ........................................................ 23Maintenance ..................................................................... 23- Skill Levels ................................................................ 23- Maintenance Intervals .............................................. 24- Air Filter ................................................................... 25- Fuel Filter ................................................................. 25- Spark Plug ................................................................. 26- Cooling System Cleaning .......................................... 26- Exhaust System ........................................................ 27- Carburetor Adjustment SRM-2100SB ..................... 28- Carburetor Adjustment SRM-2400SB ..................... 29- Lubrication ................................................................ 29- Nylon Line Replacement .......................................... 30- Sharpening Metal Blades .......................................... 32Troubleshooting ................................................................ 33Storage .............................................................................. 34Servicing Information ........................................................ 36- Parts .......................................................................... 36- Service ....................................................................... 36- ECHO Consumer Product Support .......................... 36- Warranty Card .......................................................... 36- Additional or Replacement Manuals ........................ 36- Manual Ordering Instructions .................................. 36Specifications, descriptions and illustrative material in thisliterature are as accurate as known at the time ofpublication, but are subject to change without notice.Illustrations may include optional equipment andaccessories, and may not include all standard equipment.TABLE OF CONTENTSIntroduction ........................................................................ 2- The Operator's Manual .............................................. 2- The Safety manual ...................................................... 2Manual Safety Symbols & Important Information ............ 3Safety .................................................................................. 3- General Description .................................................... 3- Decals ......................................................................... 4- International Symbols ................................................. 5- Equipment .................................................................. 5- Fuel ............................................................................. 6- Personal Condition & Safety Equipment ................... 6- Safe Operation ............................................................ 8- Extended Operation/Extreme Conditions ................... 9Description ....................................................................... 10- Contents ................................................................... 10- Blade Terms & Definitions ....................................... 10- Emission Control ...................................................... 11Specifications .................................................................... 13Assembly .......................................................................... 14- ECHO Approved Optional Attachments ................ 14- Power Head Shaft / Lower Shaft Assembly ............. 15- Plastic Shield Installation .......................................... 15- Nylon Head Installation ........................................... 16- Front Handle Installation .......................................... 16Pre-Operation ................................................................... 17- Operation with Blades .............................................. 17- Fuel ........................................................................... 19- Equipment Check ..................................................... 20- Determine Operation Area ....................................... 20CopyRight© 1999 By Echo, IncorporatedAll Rights Reserved.