Handle Heating And Generator Troubleshooting Chart - Stihl MS 261 User Manual

13.7.1 Handle Heating and Generator Troubleshooting Chart

yes
Measure resistance of individual
heating elements with ohmmeter
Separate the pin and socket connector to
the thermostatic switch,
Check rear handle heating element.
Flat against handle housing?
of rear handle heating element
Checking the generator
Resistance between engine ground
and generator connection
1
MS 261, MS 261 C
Start
Do both handles
warm up?
no
Heater switch
on "F"?
yes
b 13.1.3
In good condition?
yes
Resistance
about 1.6 Ω?
yes
about 0.5 – 1 Ω?
yes
2
Turn on the
no
switch
no
Install new rear handle
heating element
b 13.5
no
no
Install new generator
b 13.7
3
139