Echo CS-490 User Manual

26
CS-490
Fuel filter
Fuel tank cap
0.6 to 0.7 mm
Cleaner cover knob
Air filter
Air cleaner cover
AIR FILTER
• Checkbeforeeveryuse.
• Closechoke( ).
• Turncleanercoverknobcounterclockwiseby
hand and remove air cleaner cover and air filter.
• Brushoffdustlightly,orcleanwithcompressed
air, or replace the air filter.
• Reinstallairlterandcover.
CHECK FUEL SYSTEM
• Checkbeforeeveryuse.
• Afterrefueling,makesurefueldoesnotleak
from around fuel pipe, fuel grommet or fuel tank
cap.
• Incaseoffuelleakagethereisadangerofre.
Stop using the machine immediately and request
your dealer to inspect or replace.
SPARK PLUG
• Checkperiodically.
• Thestandardsparkgapis0.6to0.7mm.
• Correctthesparkgapifitiswiderornarrower
than the standard gap.
• Fasteningtorque: 15to17N·m
(150 to 170 kgf·cm).
FUEL FILTER
• Checkperiodically.
• Donotallowdusttoenterfueltank.
• Acloggedlterwillcausedifcultyinstarting
engine or abnormalities in engine performance.
• Pullthefuellteroutthroughfuelinletportwith
a piece of steel wire or the like.
• Whenthelterisdirty,replaceit.
• Whentheinsideofthefueltankisdirty,rinsing
the tank out with gasoline can clean it.
OIL FILTER
• Checkperiodically.
• Donotallowdusttoenterintooiltank.
• Acloggedoillterwillaffectthenormal
lubricating system.
• Washtheoiltankandlterelementwithan
approved solvent.
• Ifdamageordeteriorationisnotedontheoil
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

Echo CS-490 Specifications

General

Engine Displacement	50.2 cc
Chain Pitch	0.325 inches
Chain Gauge	0.050 inches
Ignition System	Digital
Vibration Reduction System	Yes
Bar Length	18 inches
Weight	10.6 lbs (dry weight)
Fuel Tank Capacity	16.6 fl. oz.