ELECTRIC STARTING SYSTEM
IELECI
ell
EB803034
STARTER
MOTOR
INSPECTION
1.1nspect:
•
Commutator
Dirty
~
Clean
it
with
#600
grit
sandpaper.
2.Measure:
•
Commutator
diameter
®
Out
of
specification
~
Replace
the
starter
motor.
Commutator
wear
limit:
27
mm
(1.06 in)
3.Measure:
• Mica
undercut
<IV
Out
of
specification
~
Scrape
the
mica
to
the
proper
measurement using a hacksaw
blade
which
has been grounded
to
fit
the
commutator.
~
Mica
undercut:
0.7
mm
(0.03 in)
NOTE:
The mica insulation
of
the
commutator
must
be
undercut
to
ensure
proper
opera-
tion
of
the
commutator.
4.1nspect:
• Armature coil resistances (insulation/con-
tinuity)
Defects
~
Replace the starter
motor.
**********************************
Inspection steps:
• Connect
the
pocket tester
for
the continu-
ity
G) and insulation ® checks.
• Measure the armature coil resistances.
Armature
coil
continuity
resis-
tance
G):
oQ
at
20°C
(68°F)
Armature
coil
insulation
resis-
tance
®:
More
than
1
Mil
at
20
0
e
(68°F)
•
If
the resistance is incorrect, replace the
starter
motor.
**********************************
7 - 18
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