91SR 430, SR 450
: Pull off the blower wheel (1).
The blower wheel must not be 
cracked or damaged in any other 
way.
Damage to the blower wheel may 
result in more serious problems 
– engine bearing damage due to 
out-of-balance or the high 
centrifugal forces may cause the 
blower wheel to shatter.
Installing
: Push the blower wheel (1) into 
position.
– Fit the nut and tighten it down 
firmly.
0002RA368 TG
1
0002RA369 TG
1
– Check the position of the elbow. 
– it must be properly seated in 
the outer blower housing.
– Place the outer blower 
housing (1) in position.
: Insert the screws (arrows) and 
tighten them down firmly.
– Reassemble all other parts in the 
reverse sequence.
10.7 Blower Housing, SR 430
– Remove the filter housing, b 9.4
– Remove the fuel tank, b 9.12
– Pull the fuel hoses out of the 
guides.
– Remove the short circuit wire 
from the blower housing, 
b 5.6.2
0002RA380 TG
1
Versions with long back padding
: Take out the screws (arrows).
: Remove the back padding (1).
: Take out the screws (1).
Versions with short back padding
: Fold down the back padding (1).
: Take out the screws (2).
0002RA487 TG
1
0002RA490 TG
1 1
0002RA373 TG
1
2 2