25
9. MAINTENANCE
WARNING
Make aura that the engine has stoppad and is cool bafore parforming
any aarvica to tha machina. Contact with moving cutting head or hot
muffler may result in a personal injury.
AIR FILTER
The air filler, if clogged, will reduce the engine performance, Check and
clean the filler element ín warm, soapy water as required. Dry completely
befare installing, lf the element is broken or shrunk, replace wíth a new one.
(1) Air filter
FUEL FILTER
When the engine runs short of fuel supply, check the fuel cap and the fuel
filler far blockage.
(1) Fuel filter
System/components Procedure Before
use
Every
25
hours
after
Every
50
hours
after
Note
fuel leaks, fuel soillaaee
fuel tank, air filler, fuel filler
idle adjusting screw
wipe out
inspect/clean
see adjusting
idling speed
spark plug
cylinder fins, intake air cooling vent
muffler, spark arrester, cylinder
exhaust port
throttle trigger, stop switch
clean
clean
grease
cutting parts
transmission
screws/nuts/bolts
cutting attachment guard
oiling port
guide bar
sprocket
saw chain
tighten/replace
make sure to attach
inspect/replace
inspect/sharp
replace if
somethings wrong
GAP .025 in (0.6 - 0.7 mm)
replace. if necessary
replace, if necessary
not adjusting screws
replace carburetor if necessary
clean
clean
check operation
clean and readjust
plug gap
EngineShaftCutting unit
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