36
English / USA
FS 300, FS 350, FS 400, FS 450, FS 480
Use STIHL gear lubricant for 
brushcutters (see "Guide to Using this 
Manual").
: Check grease level about every 
100 hours of operation.
: Unscrew the filler plug (1).
: If no grease can be seen on the 
inside of the filler plug, screw the 
tube of lubricant (2) into the filler 
hole.
: Squeeze grease into the gear 
housing – till 1/5 oz (5 g).
Do not completely fill the gear 
housing with grease.
: Refit the filler plug and tighten it 
down firmly. 
Replacing the starter rope
The rewind spring may pop out and 
uncoil – take care to avoid injury 
during the following operation.
: Remove the screws (1).
: Lift away the fan housing.
: Remove the spring clip (2).
: Carefully pull off the rope rotor with 
washer (3) and pawl (4).
: Ease the cap (5) out of the starter 
grip.
: Remove remaining rope from the 
rotor and grip.
: Tie a simple overhand knot in the 
end of the new starter rope (see 
Specifications) and then thread the 
rope through the top of the grip and 
the rope bush (6).
: Refit the cap in the grip.
Lubricating the 
Gearbox
1
2
256BA044 KN
Replacing the Starter Rope 
and Rewind Spring
1
1
1
1
256BA063 KN
3
2
4
256BA032 KN
6
5
256BA033 KN