Stihl MS 311, Руководство пользователя, Страница: 45 / 94

44 MS 311, MS 391
7.7 Short Circuit Wire
7.7.1 Testing
If the spark plug, ignition lead and
spark plug boot are in order, check
the short circuit wire.
– Remove the fan housing, b 8.2
: Disconnect the short circuit
wire (1).
– Connect the ohmmeter to
ground (2) and the short circuit
wire (1).
– Set the Master Control lever to
"
0
".
The resistance measured must be
about 0
Ω
. If it is much higher, the
reason is a break and the wiring
harness has to be replaced,
b 7.7.
– Set the Master Control lever to
" F ".
The resistance measured must be
infinitely high. If not, fit a new short
circuit wire,
b 7.7.
Perform the contact and continuity
test on the ground wire too.
– If no fault can be found, check the
ignition system with the aid of the
troubleshooting chart,
b 7.8.
– Reassemble in the reverse
sequence.
1
2
4903RA263 TG
7.7.2 Removing and Installing
– Pull the boot off the spark plug.
– Remove the shroud, b 6.4
– Remove the fan housing, b 8.2
– Disconnect the choke rod,
b 10.2.1
– Remove the contact spring,
b 7.7.4
The ground and short circuit wires
are combined in a wiring harness.
: Pull the ignition lead (3) out of the
guide (arrows).
: Remove the connector (1).
: Take out the screw and remove
the ground wire (2).
: Pull the wiring harness (1) out of
the guides (arrows).
4903RA099 TG
1
2
3
4903RA100 TG
1
: Pull the short circuit wire (1) out
of the guides (arrows).
– Pull the ring terminal (2) off the
pin.
: Lift the ring terminal (1) a little
and pull it off the pin (2) .
– Remove the filter base, b 12.3
: Pull the short circuit wire (1) out
of the guides (arrows).
4903RA101 TG
1
2
4903RA102 TG
2
1
4903RA264 TG
1