115FS 240 C, FS 260 C, FS 360 C, FS 410 C, FS 460 C-M
: Pry out plug (1)
: Pull flexible liner (1) out of the 
drive tube assembly
Assembly
: Push flexible liner (1) into drive 
tube assembly
5904RA468 TG
1
5904RA469 TG
1
5904RA470 TG
1
: Push flexible liner (1) inside the 
drive tube assembly until depth a 
= 30 mm
: Press plug (1) into the drive tube 
assembly as far as it will go
The drive shaft is supported by the 
flexible insert in the drive tube 
assembly.
If the shaft has blue tarnish on it, it 
must be replaced.
– Coat the drive shaft with STIHL 
gear lubricant for brushcutters 
before installation, 
b 14
5904RA471 TG
a
1
5904RA472 TG
1
5904RA473 TG
1
– Apply lubricant to the drive shaft 
evenly 
– Only pressing lubricant into the 
hole of the flexible liner and 
pushing in the unlubricated drive 
shaft does not ensure sufficient 
lubrication 
: Push drive shaft (1) with square 
profile into opening (arrow) of the 
flexible insert
: Slide on the gearbox (1) on the 
opposite end of the installed 
stopper as far as it will go
: Orient drive tube assembly (2) so 
that the sticker aligns with the 
dome (arrow) on the gear 
housing, then tighten screws (3)
– The sticker on the drive tube 
assembly must be visible when 
using the machine
– With gentle twisting motions, 
push the drive shaft into the 
gearbox as far as it will go, turn 
output shaft on gearbox, if 
necessary
Checking operation
– Turn the square profile of the 
drive shaft; the output shaft on 
the gearbox must also turn
– Reassemble parts in reverse 
order
5904RA474 TG
1
2
3
3