Resistance Test On Primary Winding; Resistance Test On Secondary Winding; Disassembly And Assembly - Stihl 009 User Manual

STIHL 009, 010, 011
4.4.5.1 Resistance Test
on Primary Winding

Resistance test on primary winding

To test the primary winding, first re-
move the flywheel (4.4.4) and the
contact set.
Then disconnect lead from contact
set. Clip one of the two test leads to
the primary connection and the other
to ground of ignition armature. A
reading of approx. 0.8 to 1.3 (Ω)
should now be obtained in measuring
range "Ωx1".
If the reading obtained deviates from
this value the ignition armature must
be replaced.
4.4.5.2 Resistance Test
on Secondary Winding

Resistance test on secondary winding

To test the secondary winding, hold
banana-pin of one test lead against
the leg spring in the spark plug ter-
minal and connect other test lead to
ground of ignition armature. A reading
of 7.2 to 8.8 (kΩ) should now be ob-
tained in measuring range "Ωx1000"
(kΩ).
If a different value is obtained,
remove the ignition lead and carry out
the measurement again, holding one
test lead directly against the secon-
dary output of the ignition armature. If
the deviation from the specified value
persists, the ignition armature must
be replaced.
4.4.5.3 Disassembly
and Assembly
Top:
Removing the contact set
Bottom:
Unscrewing the ignition armature
First remove the flywheel (4.4.4) and
take out the two contact set mounting
screws. Unscrew the cable clamp
fastening screw and then the two pan
head screws on the ignition armature.
Remove the ignition armature and
contact set. Unscrew the ignition lead
from the armature and the primary
lead from the contact set.
29