KM 90 R
English
26
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 XX
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, the working tool
must not turn
XX
Set idle speed X
Spark plug
Set electrode gap X
replace after every 100 hours of
operation
Intake port for cooling air
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
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