Stihl FS 40, Service Manual

Page: 37 / 82

36 Series 4144 Components FC, FS, KM
The rewind spring is correctly
tensioned when the starter grip sits
firmly in the rope guide bushing
(arrow) without drooping to one
side. If this is not the case, tension
the spring by one additional turn.
When the starter rope is fully
extended, it must still be possible to
rotate the rope rotor as follows
before maximum spring tension is
reached.
Standard version
= 1 full turn
ErgoStart version
= 1 – 2 full turns
If this is not the case, reduce spring
tension since there is otherwise a
risk of breakage.
To reduce spring tension:
Pull the rope out, hold the rope rotor
steady and take off one turn of the
rope.
– Install the rewind starter,
b
6.2
– Tightening torques,
b
3.4
6.7 Replacing the
Rewind Spring
– Troubleshooting,
b
4.2
The rewind spring is installed in the
rope rotor.
545RA123 TG
A replacement spring is supplied
ready to install with a new rope
rotor.
If the rewind spring has popped out,
refit it in the rope rotor as follows:
Wear a face shield and work gloves.
– Remove the rope rotor,
b
6.4
:
Engage anchor loop (1) in its seat
(arrow) in the rope rotor (2).
:
Fit the rewind in the
counterclockwise direction,
holding the windings steady to
prevent them popping out.
545RA279 TG
2
1
545RA109 TG
– Secure the spring so that it
cannot pop out.
:
If necessary, line up the inner
spring loop (arrow) so that it is
against the edge of the rope rotor.
– Remove the rope rotor,
b
6.4
– Tension the rewind spring,
b
6.6
– Reassemble all other parts in the
reverse sequence.
– Tightening torques,
b
3.4
6.8 ErgoStart
The Ergostart is installed in the rope
rotor,
b
6.4
If the ErgoStart spring has popped
out, install a new rope rotor.
A new rope rotor comes with the
rewind spring and ErgoStart spring
preassembled.
545RA109 TG
545RA288 TG