0458-838-8601-A
11
English 
5 IMPORTANT SAFETY INSTRUCTIONS
■ Genuine STIHL replacement parts are specifically 
designed to match your power tool and meet safety and 
performance requirements. Use of parts that are not 
authorized or approved by STIHL may cause serious or 
fatal injury or property damage.
– STIHL recommends that only identical STIHL 
replacement parts be used.
5.6 Fueling Instructions
Fuel
WARNING
■ Gasoline and its vapors are extremely flammable. Your 
STIHL trimmer / brushcutter uses an oil-gasoline mixture 
for fuel. If spilled and ignited by a spark or other ignition 
source, it can cause fire and serious burn injury or 
property damage.
Pick a Safe Location for Fueling
WARNING
■ To reduce the risk of fire and explosion while fueling:
Allow the Engine to Cool Before Removing the Fuel Cap
WARNING
■ Gasoline vapor pressure may build up inside the fuel tank. 
The amount of pressure depends on a number of factors, 
such as the fuel used, altitude, and temperature. To 
reduce the risk of burns and other personal injury from 
escaping gas, vapor and fumes:
– Always shut off the engine and allow it to cool before 
removing the fuel cap.
■ The engine is air cooled. When it is shut off, cooling air is 
no longer drawn across the cylinder and engine 
temperatures will rise for several minutes before starting 
to cool. In hot environments, cooling will take longer. To 
reduce the risk of burns and other personal injury from 
escaping gas vapor and fumes:
– Allow the trimmer / brushcutter to cool. If you need 
to refuel before completing a job, turn off the 
machine and allow the engine to cool before opening 
the fuel tank.
– Use extreme caution when handling 
gasoline or fuel mix.
– Do not smoke or bring any fire or flame 
near the fuel or the trimmer / brushcutter.
– Note that combustible fuel vapor may 
escape from the fuel system.
– Always place the power tool on the 
ground before attempting to fuel the 
machine.
– Fuel your trimmer / brushcutter in a well-
ventilated area, outdoors away from 
flames, pilot lights, heaters, electric 
motors, and other sources of ignition. 
Vapors can be ignited by a spark or 
flame many feet away.
– Select bare ground for fueling and move 
at least 10 ft. (3 m) from the fueling spot 
before starting the engine.
– Wipe off any spilled fuel before starting 
your trimmer / brushcutter.
– Take care not to get fuel on your 
clothing. If this happens, change your 
clothing immediately.