Maintenance And Care - Stihl FS 120 Instruction Manual

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29 Maintenance and Care

The following intervals apply for normal operating
conditions. The specified intervals must be short‐
ened accordingly when working for longer than nor‐
mal or under difficult cutting conditions (extensive
dust, etc.).
Complete machine
Control handle
Air filter
Manual fuel pump (if
present)
Fuel pickup body in fuel
tank
Fuel tank
Carburetor
Spark plug
Intake port for cooling air Visual inspection
All accessible screws,
nuts and bolts (not
adjusting screws)
Anti-vibration elements
Cutting attachment
Metal cutting attachment sharpen
Gearbox lubrication (with
screw plug)
Safety information label
38
Visual inspection (condi‐
tion, leaks)
Clean
Replace any damaged
parts
Function test
Visual inspection
Clean
replace
check
Have repaired by a spe‐
1)
cialist dealer
check
replace
Clean
Check idle adjustment,
cutting attachment must
not turn
Adjust idle speed
Set electrode gap
Replace after every 100
hours of operation
Clean
Tighten
2)
Check
Have replaced by serv‐
1)
icing dealer
Visual inspection
replace
Check for secure fit
check
top up
replace
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