Owner's Manual

FS 90, FS 90 R
English
44
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.).
before starting work at the end of work and/or daily whenever tank is refilled weekly monthly yearly if faulty if damaged as required
Complete machine
visual inspection (condition, leaks) XX
clean X
Control handle check operation XX
Air filter
clean X
replace X
Fuel pick-up body in fuel tank
have checked by a specialist dealer
1)
X
have them replaced by a specialist
dealer
1)
XXX
Fuel tank clean XX
Carburetor
check idle adjustment, cutting attach-
ment must not turn
XX
readjust idle speed X
Spark plug
adjust electrode gap X
replace after every 100 hours of
operation
Cooling air intakes
visual inspection X
clean X
Valve clearance
check and adjust if necessary, one time
after 139 hours of operation, by servic-
ing dealer
1)
X
Combustion chamber
decarbonize after 139 hours of opera-
tion, subsequently after every 150 hours
of operation
X
Spark arresting screen in muffler
check XX
clean or replace XX
All accessible screws, nuts and bolts (not
adjusting screws)
retighten X