Stihl 064 Service Manual page 66

STIHL 064, 066
9.1.2 Test Connections and
Test Values
The plug and socket connections
of wires 1 to 4 must be disconnected
to test the individual components.
Com- Ohmmeter connection
ponent
(use either test lead)
Lead 1
Switch Switch
1)
terminal
Heating Connector
element on wire 3
in rear
handle
Heating Connector
element on wire 2
in front
handle
Generator Connector
on wire 1
1)
Remove wire for this purpose
Resistance
Lead 2 Spec. Actual
(reading)
Ground 0 -
Connector 0,25 approx. 0,25 Heating element OK
on wire 4
-
0
Ground 1,6 approx. 1,6
-
0
Ground 0.6 approx. 0.6
-
0
If faulty
Cause Remedy
Switch faulty Replace
switch
Break in wire, heating Replace
element damaged heating element
Short circuit - Repair
damaged insulation insulation
Heating element OK
Break in wire, heating Replace
element damaged front handle
Short circuit - Repair
damaged insulation insulation
Generator OK
Break in wire, Replace
generator damaged generator
Short circuit - Repair
damaged insulation insulation
66