6E-4
1968
PONTIAC SERVICE MANUAL
Fig.
6E-3
Testing Armature
For
Ground
V
PH
SMB
IBi
¥~
pi
\
INSULATED
\
BRUSH
CONNECTOR
STRAPS
Fig.
6E-4
Testing Field Coils
For
Open
2.
Using a
110-volt
test
lamp, place one lead on
the connector strap and the other on the field frame
(Fig,
6E-5).
Disconnect the shunt coils ground before
check is made. If lamp lights, the field coils are
grounded and defective coils must be repaired or
replaced.
3.
Using a
110-volt
test
lamp, place one lead on
each end of shunt coils (Fig.
6E-6).
Disconnect shunt
coil
grounds before check is made. If lamp
does
not
light, the shunt coil is open and must be replaced.
FIELD
FRAME
(GROUND)
v
fflflR
N
*.
CONNECTOR
f-£"
STRAPS
i
SHUNT COIL
GROUND
LEAD
DISCONNECTED
Fig.
6E-5
Testing Field Coils
For
Ground
SHUNT COIL
GROUND
LEAD
/
f
/
CONNECTOR
%.
STRAPS
—
^|^^^^^^^^^
Fig.
6E-6
Testing Shunt Coil
For
Open
FIELD
COIL
Field
coils can be removed from the field frame
easily by use of a
pole
shoe
screwdriver. A
pole
shoe
spreader should also be used since this pre-
vents distortion of the field frame.
Careful
installa-
tion of field coils is necessary to prevent shorting or
grounding of field coils as the
pole
shoes
are tight-
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