Operators Manual

71Series 4144 Components FC, FS, KM
: Pull the flexible liner (1) out of the
drive tube.
– Check the individual parts and
replace if necessary.
– Inspect the bearing housing and
replace if necessary, b 9.1.5
: Push the flexible liner (1) into the
end of the drive tube with the
cross holes (arrows).
: Line up the flexible liner (1) so
that the cross holes (arrows) in
the drive tube are between the
spokes.
545RA248 TG
1
545RA249 TG
1
545RA255 TG
1
The drive shaft is supported in the
flexible liner inside the drive tube.
If the drive shaft has turned blue,
install a new one.
– Before installing the drive shaft,
coat it with STIHL gear lubricant
for brushcutters, b 11
– Apply the grease evenly to the
drive shaft. Do not pump grease
directly into the drive tube or
flexible liner.
: Push the drive shaft (1) into the
flexible liner (arrow) until it
engages the square recess in the
bearing housing.
– Check operation.
– Rotate the drive shaft – the
bearing housing output shaft
must rotate too.
– Reassemble in the reverse
sequence.
– Tightening torques, b 3.4
545RA250 TG
1
9.1.5 Removing and Installing
the Bearing Housing
: Take out the screw (arrow) and
remove the hex nut at the other
side.
– Pull off the deflector (1).
: Take out the screw (1).
– Pull off the clamp (2).
: Loosen wing screw (2) on the
clamp (1) 5910 890 1100 until it
can be slipped on to the drive
tube.
545RA256 TG
1
545RA257 TG
1
2
2
545RA273 TG
1