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I I
Fig.
Fig. 3-Voltage
I I
molded plastic bracket which is attached to the regu-
molded plastic bracket which is attached to the regu-
lator frame by two screws. The upper contact bracket
lator frame by two screws. The upper contact bracket
is connected to the "IGN" terminal by a fusible wire
is connected to the "IGN" terminal by a fusible wire
(Fig. 4). The lower contact bracket is connected to
(Fig. 4). The lower contact bracket is connected to
ground by a fusible wire. The armature is connected
ground by a fusible wire. The armature is connected
t t
to the insulated "FLD" terminal.
to the insulated "FLD" terminal.
The main components of the alternator are the two
The main components of the alternator are the two
end shields, the stator, the rotor and the rectifiers. The
end shields, the stator, the rotor and the rectifiers. The
two end shields are held together by three through
two end shields are held together by three through
bolts. The shields are vented at both ends and around
bolts. The shields are vented at both ends and around
the outer diameter. Cool air is drawn in through the
the outer diameter. Cool air is drawn in through the
ends and out over the stator windings through the
ends and out over the stator windings through the
outer diameter vents. The stator assembly consists of
outer diameter vents. The stator assembly consists of
an internally-slotted laminated stationary armature
an internally-slotted laminated stationary armature
having three sets of windings, one end of each of the
having three sets of windings, one end of each of the
windings is connected in parallel to one positive
windings is connected in parallel to one
case rectifier, and to one
case rectifier, and to one
is sandwiched in between the two end shields (Fig. 5).
is sandwiched in between the two end shields (Fig. 5).
The rotor (Fig. 6) consists of a circular field coil en-
The rotor (Fig. 6) consists of a circular field coil en-
cased between the two six fingered, overlapping sec-
cased between the two six fingered, overlapping
J J P P P P E E R R F F U U S S IB
IB L L E E W
FUSIBLE
FUSIBLE
WIRE
WIRE
I I
Fig.
Fig. 4-Voltage
36
36
Silicon rectifiers have a very high resistance to the
Silicon rectifiers have a very high resistance to the
flow of an electrical current in one direction, but a very
flow of an electrical current in one direction, but a very
low resistance in the opposite direction. Therefore with
low resistance in the opposite direction. Therefore with
3-Voltage Regulator (Cover Removed)
Regulator (Cover Removed)
negative
negative
W IR
IR E E
J' J'
/ FU
/
FU SIBL
I I L L
WIRES
WIRES
4-Voltage Regulator Fusible Wires
Regulator Fusible Wires
61X232
61X232
tions which are the pole pieces. The rotor produces an
tions which are the pole pieces. The rotor produces an
effective 12 pole rotating magnetic field. The ends of
effective 12 pole rotating magnetic field. The ends of
the field coil windings are connected to slip rings at
the field coil windings are connected to slip rings at
the rear end of the rotor. The battery current is sup
the rear end of the rotor. The battery current is sup
plied to the field coil windings through the ignition
plied to the field coil windings through the ignition
switch, the regulator, the brushes, and the slip rings.
switch, the regulator, the brushes, and the slip rings.
The rotor shaft is supported at the drive end by a
The rotor shaft is supported at the drive end by a
pre-lubricated ball bearing. At the opposite end, the
pre-lubricated ball bearing. At the opposite end, the
rotor shaft is supported by a prelubricated
rotor shaft is
ing.
ing.
In the alternator, the alternating current is converted
In the alternator, the alternating current is converted
to direct current through ,six
to direct current through
Three of the rectifiers have negative polarity cases and
Three of the rectifiers have negative polarity cases and
are pressed into the die cast aluminum end shield.
are pressed into the die cast aluminum end shield.
These rectifiers are in the ground side of the system.
These rectifiers are in the ground side of the system.
positive
The remaining three rectifiers have positive polarity
The remaining three rectifiers have positive polarity
case rectifier and
case rectifier and
cases and are pressed into a die cast aluminum heat
cases and are pressed into a die cast aluminum heat
sink. The heat sink is electrically insulated from the
sink. The heat sink is electrically insulated from the
end shield but has sufficient area to absorb the heat
end shield but has sufficient area to absorb the heat
sec-
from the rectifiers that are pressed into it.
from the rectifiers that are pressed into it.
ADJ
ADJ US
US T T ABLE
ABLE
BR AC
BR
AC KET
KET
WER C C ONT
ONT AC
ACl l
LO
LOWER
r r
SIBL E E
W I R E
W I R E
BR
BR AC
AC KET
KET
ATT
ATT AC
ACHING
HING
SCREW
SCREW
61X235
61X235
EL
ELEC
EC T T RIC
RIC A A L-I
L-I NST
NSTRU
RUMENT
MENTS S
(4) Connect a jumper between the alternator "BAT"
(4) Connect a jumper between the alternator "BAT"
terminal and the alternator field terminal.
terminal and the alternator field terminal.
(5) Connect battery-starter tester (equipped with a
(5) Connect battery-starter tester (equipped with a
Fig. 5-S
Fig.
5-Stat
tator
or
and Rect
and Rectifier End S
ifier End Shield Asse
supported by a prelubricated roller b
,six silicon rectifiers (Fig. 5).
silicon rectifiers (Fig. 5).
Rotor
Rotor
Fig.
Fig.
Assembly
Assembly
ST A A T T O O R R
ST
: : IN
INSUL
SUL A A T T ED
ED
- - RE
RE C C T T IFIER
IFIER
hield Assembly
mbly
roller bear-
ear-
INGS
INGS
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