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English / USA
BT 120 C
Maintenance Chart
Please note that the following maintenance intervals apply for normal operating
conditions. If your daily working time is longer than normal or conditions are
difficult (very dusty work area, etc.), shorten the specified intervals accordingly.
before
starting work
after finishing
work or daily
after each
refueling stop
weekly
monthly
yearly
if problem
if damaged
as required
Complete machine
Visual inspection (condition, leaks)
Xx
Clean
X
Auger brake
Check operation
XX
Have serviced by STIHL dealer
X
Control handle Check operation
XX
Air filter
Clean
X
Replace
X
Filter in fuel tank
Check
X
Replace
XX
Fuel tank Clean
X
Carburetor
Check idle adjustment –
drilling spindle must not rotate
X
Readjust idle
X
Spark plug Readjust electrode gap
X
Spark arresting screen in muffler Have checked by STIHL dealer
X
All accessible screws and nuts (not
adjusting screws)
Retighten
Gearbox Re-lubricate
X
Drilling spindle Clean
X
Auger
Inspect
X
Replace
X