Stihl TS 420 - 8.7 Troubleshooting, ignition system

57TS 410, TS 420
: Take the ground wire and short
circuit wire out of the cable
guides (arrows).
: Remove the retainer (1).
– Examine the switch, replace if
necessary.
Installation
: Connect the ground wire (1) and
short circuit wire (2) and insert
them in the cable guide (arrow).
370RA212 TG370RA213 TG
1
1
2
370RA214 TG
: Push the ground wire and short
circuit wire into the cable guides
(arrows).
The wires must be routed in parallel
and must not cross one another.
: Press the ignition lead (1) into the
cable guides (arrows).
– Plug in the spark plug boot.
370RA215 TG370RA199 TG
1
– Install the shroud, b 7.4.
: Check correct functioning: the
switch shaft must actuate the
contact spring of the switch
(arrow) when in position "
0" so
that the contact makes.
– Check the air gap on the ignition
module, adjust if necessary,
b 8.1.1.
– Reassemble remaining parts in
reverse order.
– Tightening torques, b 3.5.
370RA217 TG