Stihl BR 500 - Inner Fan Housing; Fanwheel

56 BR 500, BR 550, BR 600
– Remove the fanwheel, b 11.3
– Remove the elbow, b 11.1
– Remove the air guide shroud,
b 7.2
– Remove the carburetor, b 6.2.2
– Remove the antistatic wire,
b 11.4
: Take out the screws (arrows)
– Remove the engine.
Install in the reverse sequence.
Do not lubricate the thread of the
fanwheel.
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BR 500 only
: If the fan housing is replaced, the
soundproofing liner (1) must be
fitted at the engine side.
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1
VA
: When installing, check that the
groove in the manifold is properly
seated in the fan housing (arrow).
– Check that the throttle cable and
fuel hoses are correctly
positioned.
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Install all other parts in the reverse
sequence.
– Remove outer fan housing,
b 11.1
– Use combination wrench
4180 890 3400 to unscrew the
spark plug.
: Screw the locking screw
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1
4282 890 2700 (1) fully home.
Always use the specified locking
screw to avoid any risk of damaging
the piston.
: Unscrew the fanwheel (1)
counterclockwise.
Right-hand thread. Very high
release torques may be necessary
after long periods of operation.
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11.2 Inner Fan Housing 11.3 Fanwheel
RA_452_00_01_02.book Seite 56 Donnerstag, 16. Februar 2012 11:52 11