[. . . ] Grass Trimmer/Brush Cutter Operator's Manual MODELS, MODELS, Type 1E SRM - 2400, 2410 Serial Number 161629 & Up SRM - 2400 Serial Number 001001 - 562681 SRM - 2410 Serial Number 001001 - 503484 WARNING DANGER Read rules for safe operation and instructions carefully. [. . . ] 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. If a task is not listed, see your ECHO Dealer for repairs. SKILL LEVELS Level 1 = Level 2 = Level 3 = Easy to do. ECHO recommends that the unit be returned to your ECHO dealer for service. ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier. Below each task heading are listed the various part numbers required for that task. See your ECHO dealer for these parts. MAINTENANCE INTERVALS C OMPON EN T/ SYSTEM MAIN TEN AN C E PR OC ED U R E R EQ'D SK ILL LE V E L D AILY OR B EFOR E U SE EVERY R E FU E L 3 MON TH S OR 90 H OU R S 6 MON TH S OR 270 H OU R S YEAR LY 600 H OU R S R ecommended Echo D ealer Maintenance Procedures C yli nder Exhaust Port Inspect/C lean/D ecarbon 3 I/C D o-It-Yourself Maintenance Procedures Ai r Fi lter C hoke Fuel Fi lter Fuel System, leaks C ooli ng System Muffler Spark Arrestor D ri ve Shaft (Flex C able Models) Gear Housi ng Recoi l Starter Rope Spark Plug Screws/Nuts/Bolts Inspect/C lean/Replace Inspect/C lean Inspect/Replace Inspect/Replace Inspect/C lean Inspect/Replace Grease 1 2 1 1 2 2 2 I* I/C I/R* I (1) I I/C I/C I I I/R* R* Grease Inspect/C lean Inspect/C lean Inspect/Ti ghten/Replace 2 1 2 1 I/R* I/C* I (2) I/C R* MAIN TEN AN C E PR OC ED U R E LETTER C OD ES: I = IN SPEC T, R = R EPLAC E, C = C LEAN IMPOR TAN T N OTE - Ti me i ntervals shown are maxi mum. [. . . ] * All recommendati ons to replace are based on the fi ndi ng of damage or wear duri ng i nspecti on. . [. . . ]