BR 450, BR 450 C
English
18
N If your fuel cap still does not tighten 
properly, it may be damaged or 
broken. Stop using the power tool 
and take it to your authorized STIHL 
dealer for repair or replacement.
Positions of Master Control Lever
1 Setting lever
2 Throttle trigger
3 Starter switch (BR 450 C only)
Engine stop 0 – ignition interrupted, 
engine stops. The setting lever does not 
remain in ths position, it springs back.
Normal run position F – engine runs or is 
ready to start. Throttle trigger can be 
moved to any position.
Infinitely variable throttle setting – 
throttle trigger can be locked in any 
required position: Move setting lever (1) 
upwards until required engine speed is 
reached. To disengage, move the 
setting lever back to the normal run 
position F.
Starting the Engine
N Observe safety precautions.
NOTICE
Start your unit on a clean, dust-free 
surface only to ensure that no dust is 
sucked in.
N Move the setting lever to F
N Press the fuel pump bulb at least 
eight times – even if the bulb is filled 
with fuel.
Information Before You Start
1
2
3
0014BA001 AS
Starting / Stopping the 
Engine
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