Stihl TS 420 - 10.4 AV spring on the carburetor; 10.5 Handlebar

68 TS 410, TS 420
10.2 AV spring in the support
The AV spring is located between
support and crankcase and must be
replaced if defective.
– Remove the support, b 10.6.
: Remove the screw (arrow).
: Take out the AV spring (1).
– Examine the AV spring, replace if
necessary.
: Slide the AV spring (1) as far as
possible into the mount (arrow)
and hold it in position. The AV
spring is prevented from twisting.
1
370RA258 TG
1
370RA259 TG
: Insert and tighten down the screw
(arrow).
– Install the support, b 10.6.
– Tightening torques, b 3.5.
10.3 AV spring at the bottom
of the crankcase
The AV spring is secured
underneath the machine and must
be replaced if defective.
: Remove the screw (arrow).
– Remove the handlebar, b 10.5.
370RA260 TG370RA261 TG
: Pull the AV spring (1) out of the
handlebar.
– Examine the AV spring, replace if
necessary.
: Push the AV spring (1) into the
handlebar so that the tab (2)
engages in the notch (arrow).
– Mount the handlebar on the
machine, b 10.5.
The AV spring must be screwed in
as far as possible.
: Push the bearing plug into the
mount (arrow) and hold it in
position.
1
370RA262 TG
1
370RA263 TG
2
370RA264 TG