Stihl MS 440 Service Manual page 83

: Clip one of the two test leads to
the wire from the generator, the
other to the wire leading to the
handle heating element.
All electrical components of the
heating system are connected in
series with the ohmmeter.
If the system is in order, the
ohmmeter will show a reading of
about 8 Ω in measuring range "Ω".
If the pointer does not move, there
is a break in the circuit.
If the ohmmeter shows a very low
value, there is a short circuit in one
of the components.
In both cases, each component
must be tested individually –
b 14.1
The generator is not connected to
the heating element during this
time.
– After testing, reconnect the leads
and slide the protective tubing
back over the plug connection.
– Install the interlock lever and
handle moulding – b 10.2
82 MS 440, MS 440 C