FS 40, FS 40 C, FS 50, FS 50 C
English
29
N Turn the machine over.
N Press down the cap on the spool as 
far as stop.
N Pull the ends of the lines out of the 
spool.
If the spool is empty, refill with fresh 
lengths of nylon line.
All other mowing heads
Refer to the instructions supplied with 
the mowing head.
WARNING
To reduce the risk of injury, always shut 
off the engine before adjusting the 
mowing line by hand.
Replacing nylon line
STIHL DuroCut, STIHL FixCut
WARNING
To reduce the risk of injury, always shut 
off the engine before fitting new nylon 
line.
N Fit nylon line in mowing head as 
described in the instructions 
supplied.
STIHL AutoCut C 5-2
Disassembling the mowing head and 
removing remaining nylon line
In normal operation, the supply of nylon 
line in the head is used up almost 
completely.
N Hold the mowing head steady and 
rotate the cap (1) counterclockwise 
until it can be removed.
N Pull the spool (2) out of the mowing 
head (3) and remove the remaining 
line.
Assembling the mowing head
N Fit the empty spool in the mowing 
head.
If the spring (4) has popped out:
N push it into the spool (2) until it 
engages in position with an audible 
click.
N Mount the mowing head – see 
"Mounting the Mowing Head".
Schnur/LINE  1
681BA021 KN
1
2
3
Schnur/LINE  1
681BA022 KN
2
4