55MS 311, MS 391
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 another full turn
before maximum spring tension is
reached. 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 fan housing, b 8.2
4903RA139 TG
8.7 Replacing the Rewind
Spring
– Troubleshooting, b 3.4
The replacement spring, in a spring
housing, comes ready for
installation.
– Wear a face shield and work
gloves
to protect your eyes and hands
from injury.
– Remove the fan housing and the
segment, b 8.2
– Relieve tension of rewind spring if
necessary and remove the rope
rotor, b 8.4
– Remove any remaining pieces of
old spring.
If the rewind spring can no longer be
properly tensioned, install a new
spring.
Even a worn rewind spring is still
pre-loaded in the installed condition.
– Place a blanket over the work
area and pull the rewind spring
out of the fan housing.
– Lubricate the replacement spring
with frame with a few drops of
STIHL special lubricant before
installing, b 14
: Position the replacement spring
with frame in the fan housing
– the anchor loop (2) must be
above the lug (1).
: Push the rewind spring with
frame into its seat (arrow) in the
fan housing.
The frame slips off during this
process.
The rewind spring may pop out and
unwind.
– Remove the frame.
4903RA140 TG
2
1
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General
Weight and Dimensions
