SOLENOID-SWITCH FIELD COIL
842,
FRONT
BRACKET
FIGURE
37.
EXPLODEDWEW
OF
STARTER (BEGIN SPEC
B)
ASSEMBLY
PINION STOPPER
CYLINDRICAL TOOL
Measure the brush spring tension by placing the
brush holder assembly in place over the commutator
end
of
the armature. Hook a spring scale over the
spring nearthe brush and take a reading as the spring
just leaves the brush. On a new brush, the tension
DRIVE PINION STOPPER AWAY
FROM RETAINING RING WITH
CYLINDRICAL TOOL
'
ES-1022
FIGURE
38.
PINION GEAR AND CLUTCH REMOVAL
Brush
Inspection:
When brushes are worn to the wear
limits (Figure 39), replace them. See that the brushes
move smoothly in the brushholders.
.-
_.
FIGURE
39.
BRUSH WEAR LIMITS
should be
49
to 59 ounces (1390 to 1670 grams). For
the Spec
A
starter, the tension shoud be 29 to 38
ounces (820 to 1075 grams).
Tesfing
Armafure
for
a
Short
Circuit:
Use a growler
for locating shorts
in
the armature. Place armature
in
growler and hold a thin steel blade (e.g. hacksaw
blade) parallel to the core and just above
it
while
slowly rotating armature in growler.
A
shorted arma-
turewill cause the bladetovibrateand be attracted to
the core. If armature is shorted, replace with a new
one (Figure
40).
.
FIGURE
40.
ARMATURE
SHORT
CIRCUIT TEST
35
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