Handle Heating And Generator Troubleshooting Chart - Stihl MS 240 Instruction Manual

15.7.1 Handle Heating and Generator Troubleshooting Chart

yes
individual heating elements
(On machines with carburetor heating,
separate pin and socket connector to
carburetor heating element),
Check rear handle heating element.
Flat against handle housing?
rear handle heating element
Resistance between engine ground
and generator connection
1
110
Start
Do both handles
warm up?
no
Heater switch
on "F"?
yes
Measure resistance of
with ohmmeter
b 15.1
In good condition?
yes
Resistance of
about 1.6 Ω?
yes
Check generator
about 0.5-1 Ω?
yes
2
Turn on the
no
switch
no
Install new
rear handle
heating element,
b 15.5
no
no Install new
generator,
b 15.7
MS 240, MS 260, MS 260 C
3