Echo Grass Trimmer/Brush Cutter SRM-280T Operator's Manual

Also see for SRM-280T: Installation instructions Operator's manual

22Exhaust Port CleaningLevel 2.Parts Required: As needed: Heat Shield1. Remove spark plug lead from spark plug, and remove mufflercover (2 screws).2. Place piston at top dead center. Remove muffler (A), heat shield(B), and eyeplate (C).3. Use a wood or plastic scraping tool to clean deposits from cylinderexhaust port.IMPORTANTNever use a metal tool to scrape carbon from the exhaust port.Do not scratch the cylinder or piston when cleaning the exhaustport. Do not allow carbon particles to enter the cylinder.4. Inspect heat shield, and replace if damaged.5. Install heat shield, muffler, and eyeplate.6. Tighten muffler mounting bolts (or nuts) to 53-70 in•lbf(60-80 kgf•cm).7. Install muffler cover and attach spark plug lead.8. Start engine, and warm to operating temperature.9. Stop engine, and re-tighten mounting bolts (or nuts) to specifica-tions.1. Remove 2 muffler cover screws and muffler cover (A).2. Place piston at Top Dead Center (TDC) to prevent carbon/dirt fromentering cylinder.3. Remove spark arrestor screen cover (B), gasket (C), and screen(D), from muffler body.4. Clean carbon deposits from muffler components.NOTEWhen cleaning carbon deposit, be careful not to damage the cata-lytic element inside muffler.5. Replace screen if it is cracked, plugged, or has holes burnedthrough.6. Assemble components in reverse order.CDBABAC