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Page Title:
Figure 2. Stater assembly - sectional view. |
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 A - Brush carrying plate
K
-
Yoke
B - Commutator end head
L
-
Positork drive assembly
c - Brush spring
M
-
Pinion housing
D - Brush
Housing bushing-type bearing
N
-
E - Field frame
P
-
Intermediate bearing
F - Field coil
Armature
Q
-
G - Return spring
R
-
Pole piece
s - Pole piece screw
H - Blade and plunger rod
J - Shifting lever
T - Head bushing-type bearing
Starter
assembly - sectional view.
Positork Drive Assembly. The posi-
Switch Assembly. The switch assem-
g.
e.
tork drive assembly slides on the helical
bly consists of two terminals, a blade and
splined section of the armature shaft in-
plunger rod (H), return spring (G), and a
side the pinion housing. It is engaged by
housing which mounts to the bracket the
the yoke. The drive gear operates like a
field frame. The blade and plunger rod is
ratchet when in use.
It engages starter
connected to the shifting lever. When the
when rotated in a clockwise direction but
shifting lever is activated, the contacts
rotates freely when engine flywheel speed
of the blade and plunger rod make contact
exceeds speed of armature.
with the two terminals. When the shifting
lever is released, the return spring forces
f.
Brushes.
The eight brushes func-
the blade and plunger rod to break contact
tion as the electrical contact to the com-
with the two terminals and return to the
Four of the brushes have leads
mutator.
original position.
which are connected to the field frame by
The other
Armature. The armature is made of
h.
screws and are thus grounded.
four brushes have leads which are soldered
copper and laminated steel assembled on a
The brushes ride in
steel shaft. It is supported by two bush-
to the field coils.
ing-type bearings (N and T) on the ends and
the brush carrying plate and are held
against the commutator by eight brush
an intermediate bearing (P) in the center.
The armature shaft has square-cut helical
springs.
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