Maintenance And Care - Stihl FS 90 Manual De Instrucciones

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Maintenance and Care

The following maintenance intervals apply in normal operating conditions. The spec-
ified intervals must be shortened accordingly when working for longer than normal
or under difficult cutting conditions (extensive dust, etc.).
Complete machine
Control handle
Air filter
Fuel pick-up body in fuel tank
Fuel tank
Carburetor
Spark plug
Cooling air intakes
Valve clearance
Combustion chamber
Spark arresting screen in muffler
All accessible screws, nuts and bolts (not
adjusting screws)
44
visual inspection (condition, leaks)
clean
check operation
clean
replace
have checked by a specialist dealer
have them replaced by a specialist
1)
dealer
clean
check idle adjustment, cutting attach-
ment must not turn
readjust idle speed
adjust electrode gap
replace after every 100 hours of
operation
visual inspection
clean
check and adjust if necessary, one time
after 139 hours of operation, by servic-
1)
ing dealer
decarbonize after 139 hours of opera-
tion, subsequently after every 150 hours
of operation
check
clean or replace
retighten
X X
X
X X
1)
X X
X
X
X
X
X
X X X
X X
X
X
X
X
X
X
X X
X
FS 90, FS 90 R