Echo CS-490 Operator's Manual - page 26

26

CS-490

Fuel filter

Fuel tank cap

0.6 to 0.7 mm

Cleaner cover knob

Air filter

Air cleaner cover

AIR FILTER

• Checkbeforeeveryuse.

• Closechoke( ). 

• Turncleanercoverknobcounterclockwiseby

hand and remove air cleaner cover and air filter.

• Brushoffdustlightly,orcleanwithcompressed

air, or replace the air filter. 

• Reinstallairfilterandcover.

CHECK FUEL SYSTEM

• Checkbeforeeveryuse.

• Afterrefueling,makesurefueldoesnotleak

from around fuel pipe, fuel grommet or fuel tank 

cap. 

• Incaseoffuelleakagethereisadangeroffire.

Stop using the machine immediately and request 

your dealer to inspect or replace. 

SPARK PLUG

• Checkperiodically.

• Thestandardsparkgapis0.6to0.7mm.

• Correctthesparkgapifitiswiderornarrower

than the standard gap. 

• Fasteningtorque: 15to17N·m  

  (150 to 170 kgf

·cm). 

FUEL FILTER

• Checkperiodically.

• Donotallowdusttoenterfueltank.

• Acloggedfilterwillcausedifficultyinstarting

engine or abnormalities in engine performance. 

• Pullthefuelfilteroutthroughfuelinletportwith

a piece of steel wire or the like. 

• Whenthefilterisdirty,replaceit.

• Whentheinsideofthefueltankisdirty,rinsing

the tank out with gasoline can clean it. 

OIL FILTER

• Checkperiodically.

• Donotallowdusttoenterintooiltank.

• Acloggedoilfilterwillaffectthenormal 

lubricating system. 

• Washtheoiltankandfilterelementwithan 

approved solvent. 

• Ifdamageordeteriorationisnotedontheoil

suction line, the saw must be removed from  

service until it can be inspected by a ECHO-

trained service technician. 

Spark plug

Choke control knob