,
I
,
I
•
,
I
I
~
High
rate
discharge
equipment
for individual
cell
tests
should be
operated
in accordance with
the
in
struct
ions of
the
manufacturer.
CHARGING BATTERIES
Fa
st Charg
in
g
Tn'elve-volt
fast
chargers
only should be used
for
charging
12-volt batteries.
Adjust
charging
rate
as follows:
20 to 25
amperes
maximum
for
40 to 55
A,H,
batteries
25 to 30
amperes
maximum
for 60 to 70
A.H.
batteries
Battery
temperature
should n
ot
exceed 125
degrees F, during charge.
If
the
charger
is n
ot
equipped with a
thermostatic
cut-off,
and
the
batlery
has
not received sufficient charging,
turn
charger
off until
battery
has
cooled to
100
degrees
F,
before
sta
rting
high
rate
charge
for
cont
inued c
har
ging,
Sl
ow Charging-
The slow
chargers
commonly used in sel'vice
statio
ns
are
suitable for
charging
both G
and
12-volt
batte
ries on the same circuit. Each 12-
volt
unit
must
be
co
nsidered
as
equal to two
6-
volt
batteries,
and
the c
harging
rate
adjusted
to
suit
th
e smallest 12-volt
battery
on
the
line.
Safe
slow
charging
rate
s
are
determined
by
allowing one
(1)
ampere
per positive plate
per
cell, l2-volt units.
40 to 55 A.H.
batteries
- Slow
Charge-
4
amperes
60 to 70 A.H.
batterie
s - Slow
Charge-
6
amperes
Connect positive <+) c
harger
lead to positive
terminal
and
negative < ) char
ger
lead to the
negative
termina
l of the
battery.
Tf
several but-
teries
are
to be charged in
the
sa
me circuit, due
to
the
char~ing
voltRge supply. the
batteries
are
connected in series for the required
number
per
circuit.
As the
batter
ies approach full
charge
each
cell will
be~in
to
g-as
or bubble freely. The
pat-
tery
temperature
should not exceed 125 de-
grees
F.
during
charge;
if this
temperature
is
reached,
the
batter
y should be cooled by redu
c-
ing
the
charge
rate
or removed
fr
om
the
circuit.
The
battery
is fully
charged
when
three
sue·
cessive hourly h
yd
rometer
reading
s show
no
rise
in
specific
gravity.
27
B
oost
Charging- 01 S
toc
k
Batte
ri
es
Stock
batteries
should be boosted when specific
gravity
reaches 1.225 speci
fi
c
gravity
corre
cted
to
80 degrees F.
or
open-circuit voltage drops
to
2.05 volts
per
cell
co
rre
cted, to 80 degrees F.
To
HRsure
trouble free operation on a new
bat
t
ery
installation.
the
battery
should be fully
charged at the time it is
in.c;t
alled.
WARNING:
When
battuies
are being chal'ged,
an
explosive gas
mixtm'e
f01'1ns
beneath the
cover
of
each cell.
Do
not smoke neal'
battaies
on charge or
which
have
l-ecently been cha,rged.
Do
not break live circuits at the
te1'1ninal.~
of
batteries on chat'ye. A spa1'k
will
occm'
1vhe're
the live circuit is b?'oken.
Keep all
open
/lames away ll'Om
the
batte1·Y.
STARTER MOTOR
DESCRIPTION
The
starter
motor is a 12-volt
four
pole machine
Figure
3,
Three
of the field coils
are
connected
in
series.
Series
connected motors have a
char-
acteristic
of a high
start
ing
torq
ue
coupled with
a
rapid
acceleration. To
stabil
ize
the
speed of
t.he
armature
when the load is reduced, the
fourth
field coil is connected in parallel or
shunt
.
Shunt
motors have a
characteristic
of
maintaining
a
constant
speed.
This method of
co
nnecting
the
field coils of
the
starter
motor protects
it
against
a too high
speed, in case
the
starter
circuit
is closed with-
out
the
starter
pinion being engaged,
The
brush
hold
ers
are
riveted to
the
fram
e,
It
is necessary to remove the
bearing
and
plat
e to
install
new
bru:;he~
and
spri
ngs.
The
starter
drive is
the
overrunnin
g clutch
type
and
is shifted into mesh with the engine
fiy
wheel
by
a solenoid,
The
starter
solenoid is moun led on the
start-
er.
The
starter
relay is sepa
rate
from
the sole-
noid
and
is mounted on the left
fender
splash
shie
ld
in
the
engine compartment.
A
neutral
safety
switch is provided for
cars
cquipped with
PowerFlit
c
Transmissions.
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