Short Circuit Wire; Testing; Removing And Installing - Stihl MS 240 Instruction Manual

9.6

Short Circuit Wire

9.6.1

Testing

If the spark plug, ignition lead and
spark plug boot are in order, check
the short circuit wire.
– Remove the fan housing, b 10.2
: Disconnect the short circuit wire
(1).
– Connect the ohmmeter to ground
(arrow) and the short circuit wire
(1).
– Set the switch shaft to "
The resistance measured must be
about 0 Ω. If it is much higher, the
reason is a break and the wire has
to be replaced, b 9.6.2.
– Set the switch shaft to "F".
The resistance measured must be
infinitely high. If not, fit a new short
circuit wire,
b 9.6.2.
If no fault can be found, check the
ignition system with the aid of the
troubleshooting chart, b 9.7.
– Reassemble in the reverse
sequence.
MS 240, MS 260, MS 260 C
9.6.2

Removing and Installing

– Remove the shroud, b 8.4
– Remove the fan housing,
b 10.2
– Remove the carburetor, b 14.2
1
The ground and short circuit wires
are combined in a wiring harness.
: Pull the short circuit wire (1) out
of the retainer (arrow), disengage
and remove the connector (2).
0
".
: Take out the screw and remove
the ground wire (3).
Versions with handle heating
2
: Pull the wiring harness (1) out of
the guides (arrows).
: Pull the pin and socket connector
(2) out of the guide and separate
it.
: Pry out the grommet (arrow).
The wire for handle heating is also
included in the wiring harness and
1
grommet, and has to be removed as
well
b 15.8.
3
2
– Pull the short circuit wire out of
the guide (arrow).
: Remove the connectors of the
short circuit wire (1) and ground
wire (2).
1
2
1
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