28 X7503270007© 08/2013 ECHO Inc.MAINTENANCE CS-310MAINTENANCEMoving parts can amputate fingers or cause severe injuries. Keep hands, clothing and loose objectsaway from all openings. Always stop engine, disconnect spark plug, and make sure all moving partshave come to a complete stop before removing obstructions, clearing debris, or servicing unit.Allow unit to cool before performing service. Wear gloves to protect hands from sharp edges andhot surfaces.Your ECHO unit is designed to provide many hours of trouble free service. Regular scheduled maintenancewill help your unit achieve that goal. If you are unsure or are not equipped with the necessary tools, you maywant to take your unit to an ECHO Service Dealer for maintenance. To help you decide whether you want toDO-IT-YOURSELF or have the ECHO Dealer do it, each maintenance task has been graded. If the task isnot listed, see your ECHO Dealer for repairs.Skill LevelsLevel 1 = Easy to do. Common tools may be required.Level 2 = Moderate difficulty. Some specialized tools may be required.ECHO offers REPOWERTM Maintenance Kits and Parts to make your maintenance job easier.Maintenance IntervalsMAINTENANCE PROCEDURE LETTER CODES: I = INSPECT, R = REPLACE, C = CLEANIMPORTANT NOTE - Time intervals shown are maximum. Actual use and your experience will determine the frequency of requiredmaintenance.MAINTENANCE PROCEDURE NOTES:(1) Low evaporative fuel tanks DO NOT require regular maintenance to maintain emission integrity.* Replacement is recommended based on the finding of damage or wear during inspection.COMPONENT/SYSTEM MAINTENANCEPROCEDUREREQ’DSKILLLEVELDAILY ORBEFOREUSEEVERYREFUEL3MONTHSOR 90HOURSYEARLY600HOURSAir Filter Inspect/Clean 1 I / C * R *Automatic Oiler Inspect/Adjust 1 IOil Filter Inspect/Replace 1 I I / C *Fuel System Inspect/Replace 1 I (1) * I (1) *Fuel Filter Inspect/Replace 1 I * I / R *Fuel Cap Gasket Replace 1 I * R *Guide Bar & Sprocket Nose Inspect/Clean/Lubricate 1 I / C * ISaw Chain Inspect/Sharpen/Replace/Tensioning 2 I *Sprocket Inspect/Replace 2 I *Spark Plug Inspect/Clean 1 I / C / R *Cooling System Inspect/Clean 2 I / CMuffler Spark Arrestor Inspect/Clean/Replace 2 I / C / R *Cylinder Exhaust Port Inspect/Clean/Decarbon 2 I / CRecoil Starter Rope Inspect/Clean 1 I / C *Screws/Nuts/Bolts Inspect/Tighten/Replace 1 I *