ELECTRICAL
SYSTEM
H
H1.
PART
A.
ROUTINE
MAINTENANCE
Every
week
examine
the
level
of
the
electro-
lyte
in each cell.
lift
the
battery
out
of
the
carrier so
that
the
filling
line can be seen. Add
distilled
water
until
the
elctrolyte
level reaches
this
line.
Note.-
On
no
account
should
the
battery
be
topped
up
to
the
separator
guard
but
only
to
the
maximum
line.
With
this
type
of
battery,
the
acid can only
be
reached
by
a
miniature
hydrometer,
wh1ch
would
indicate
the
state
of
the
charge.
Great
care should be
taken
when
carrying
out
these operations
not
to
spill any
acid
or
allow
a
naked
flame
near
the
electrolyte.
The
mixture
of
oxygen and
hydrogen
given
off
by
a battery
on
charge, and
to
a lesser
extent
when
when
standing idle, can be
dangerously
explosive.
The readings
obtained
from
the
battery
electrolyte
should
be
compared
with
those
given in
the
table
below.
If
a
battery
is
suspected
to
be
faulty
it
is
advisable
to
have
it
checked by a Lucas Service Centre
or
Agent.
SPECIFIC
GRAVITY
OR
ELECTROLYTE
FOR
FILLING
THE
BATTERY
U.K. and Climates
Tropical
Climates
normally
below
over
90'F
(32.2'C)
90'F
(32.2'C)
Filling Fully charged Filling
Fully charged
1.250
1.280/1.300
1.210
1.220/1.240
Every
1,000
miles
(1,500
km.1
or
monthly.
or
more regularly in
hot
climates
the
battery
should
be
cleaned as
follows.
Remove the
battery cover and clean
the
battery
top.
Examine the terminals:
if
they
are corroded
scrape them clean and
smear
them
with
a
film
of petroleum jelly, such as vaseline.
Remove the vent plugs and check
that
the
vent holes
are
clear.
H.1
I'ART
B.
MAXIMUM
PERMISSABLE
ELECTROLYTE
TEMPERATURE
DURING
CHARGE
Climates Climates
Climates
normally
between
frequently
above
8elow
80'F
80-100'F
100'F
(27'C)
(27-38'C)
(38'C)
100'F
110'F
120'F
(38'C)
(43'C)
(49'C)
Notes
The specific gravity
of
the
electrolyte
varies
with
the temperatu
reo
For convenience in
comparing specific gravities,
they
are always
corrected to 50'F.,
which
is adopted as a
reference temperature.
The
method
of
correction
is
as
follows.
For every 5'F.
below
50'F.
deduct
.020
from
the observed reading
to
obtain
the
true
specific gravity at
50'F.
For every 5'F. above
50'F., add
.020
to
the
observed reading
to
obtain the true specific
gravity
at
50'F.
The
temperature
must
be indicated
by
a
thermometer having
its
bulb actually
immersed in the
electrolyte
and
not
the
ambient temperature.
To
take
a
temperature
reading
tilt
the
battery
side-ways
and then
insert into the elctrolyte.
H3
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