Echo SRM - 225U manual Exhaust Port Cleaning

Page 26

26

1.Remove engine cover screws (2) and engine cover (B).

2.Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder.

3.Remove spark arrestor screen cover (C), gaskets (D), (E), and screen (F), from muffler body.

4.Clean carbon deposits from muffler components.

NOTE

When 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 burned through.

6.Assemble components in reverse order.

F

E

D

C

Exhaust Port Cleaning

Level 2.

Tools required: Torx T27 L-Wrench, Wood or plastic scraper

Parts Required: As needed: Heat Shield

1.Remove spark plug lead from spark plug, and remove engine cover (2 screws).

2.Place piston at top dead center. Remove muffler (A) and heat shield (B).

3.Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port.

IMPORTANT

Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.

4.Inspect heat shield, and replace if damaged.

5.Install heat shield and muffler.

6.Tighten muffler mounting bolts (or nuts) to 80-95 in•lbf (90-110 kgf•cm).

7.Install engine 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.

BA

Image 26
Contents Grass Trimmer/Brush Cutter Introduction Safety manualTable of Contents Operators manualPersonal condition and safety equipment Safety Manual safety symbols and important informationInternational symbols Hand Protection Physical ConditionEye Protection Hearing ProtectionClear the Work Area Repetitive Stress InjuriesRead the Manuals Keep a Firm GripEPA 2010 and Later and/or C.A.R.B. Tier EquipmentEmission Control exhaust & evaporative Description Shaft DecalPage Contents Nylon line operation Assembly Plastic shield installationNylon line head installation To advance trimmer line Blade installationInstall Metal Shield Remove nylon line headInstall Blade Handle installation Throttle linkage and ignition leadsBalance and adjust unit Operation Blade selectionPage Fuel Fuel RequirementsMixing Instructions Starting cold engine Purge BulbStarting warm engine Skill levels MaintenanceStopping engine Maintenance intervals Level USE HoursAir filter Fuel filterSpark plug Cooling systemExhaust system Spark Arrestor ScreenExhaust Port Cleaning High Altitude Operation Carburetor adjustmentEngine Break-In Drive Shaft Gear HousingLubrication Nylon line replacement Page Sharpening metal blades Troubleshooting Engine Problem Troubleshooting ChartStorage Long Term Storage over 30 daysSpecifications Model SRM-225UWarranty Statements Exceptions99922201032 12/03/09 01/2010 Page Grass Trimmer/Brush Cutter 39 Operators Manual Servicing Information parts/serial number ServiceWarranty registration Additional or replacement manuals Echo consumer product support