9KM 110, KM 130
English / USA
Catalytic converter
!Warning!
Some STIHL power tools 
are equipped with a 
catalytic converter, which 
is designed to reduce the 
exhaust emissions of the 
engine by a chemical 
process in the muffler. Due to this 
process, the muffler does not cool down 
as rapidly as conventional mufflers when 
the engine returns to idle or is shut off. 
To reduce the risk of fire and burn 
injuries, the following specific safety 
precautions must be observed.
!Warning!
Since a muffler with a catalytic converter 
cools down less rapidly than conven-
tional mufflers, always set your power 
tool down in the upright position and 
never locate it where the muffler is near 
dry brush, grass, wood chips or other 
combustible materials while it is still hot. 
!Warning!
An improperly mounted or damaged 
cylinder housing or a damaged/
deformed muffler shell may interfere 
with the cooling process of the catalytic 
converter. To reduce the risk of fire or 
burn injury, do not continue work with a 
damaged or improperly mounted 
cylinder housing or a damaged/
deformed muffler shell. 
Your catalytic converter is furnished with 
screens designed to reduce the risk of 
fire from the emission of hot particles. 
Due to the heat from the catalytic 
reaction, these screens will normally 
stay clean and need no service or 
maintenance. If you experience loss of 
performance and you suspect a clogged 
screen, have your muffler maintained by 
a STIHL servicing dealer.
MAINTENANCE, REPAIR AND 
STORING
Maintenance, replacement, or repair 
of the emission control devices and 
systems may be performed by any 
nonroad engine repair establishment 
or individual. However, if you make a 
warranty claim for a component 
which has not been serviced or 
maintained properly or if 
nonapproved replacement parts were 
used, STIHL may deny coverage.
!Warning!
Use only identical STIHL replacement 
parts for maintenance and repair. Use of 
non STIHL parts may cause serious or 
fatal injury.
Strictly follow the maintenance and 
repair instructions in the appropriate 
section of your KombiEngine and 
KombiTool instruction manuals. Please 
refer to the maintenance charts 
respectively the maintenance notes in 
these manuals.