The following information refers to normal operating conditions.  
The specified intervals must be reduced accordingly when working under 
aggravated conditions (severe dust formation, etc.) and with longer daily 
working hours.
Before 
starting work
After work or daily
Every time
after refuelling
Weekly
Monthly
In the event of a
malfunction
If damaged
As required
Refer to page
Complete machine
Visual inspection (condition, absence of leaks)
xx
Clean
x
Throttle trigger, throttle trigger interlock, 
slide control Functional test
xx
Filter in fuel tank
Check
x
Replace
x
Fuel tank Clean
x
V-belt
Clean
x16
Replace
xx 27
Air filter (prefilter, auxiliary filter) Clean
xx23
Air filter (all filter components) Replace
xx 23
Cooling air intake ports Clean
x
Cylinder fins Clean
x
Spark arresting screen in the muffler
Inspect
x28
Clean or replace
x28
Carburetor
Check idle speed - 
the cutting wheel must not run on
xx 24
Adjust idle speed
x24
Spark plug Adjust electrode gap
x22
Accessible nuts and bolts 
(but not adjusting screws)
Retighten
x
Rubber buffer (AV element)
Have replaced by the 
STIHL customer service
x
Abrasive wheel
Check
xx
Replace
xx 18
Support/Bracket/Rubber buffer 
(Bottom side of unit)
Check
x
Replace
xx
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The user of this unit should carry out
only the maintenance operations 
described in this manual. Other repair
work may be performed only by an 
authorized STIHL Service dealer.
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Original STIHL parts can be identified 
by the STlHL part number, the
T   logo and the STIHL parts
symbol  The symbol may appear 
alone on small parts.
76