ELECTRICAL
Polarity
The
electrical installation on this car is NEGATIVE
(-)
earth
return
and
the
correct polarity must be maintained at all times. Reversed polarity will per-
manently damage semi-conductor devices in the tachometer, and the radi
transistors (when fitted).
BATTERY
BOOSTING
AND
CHARGING
CAUTION:
The following precautions must be observed to avoid the possibility of
serious damage to the charging system or electrical components of the vehicle.
Battery
A high speed charger may only be used if the battery has been completely
charging
disconnected from the vehicle electrical system. Certain types of maintenance-free
batteries, for example the lead-calcium type, can be damaged by high speed
chargers.
If
in doubt, consult your
autho
rized Austin
MG
Dealer.
rninal voltage of the battery ;
d t the positive
(
+)
terminal of the
th
nn
When charging the battery in the v
hid
fr m an outside source such as a trickle
charger, ensure
that:
- the charger voltage i th
- the charger positive (
+ ) 1 d i
battery;
- the charger negative (- ) lead
i connected to the negative ( - ) terminal of the
battery.
Battery
boost
A high speed battery charger must
not
be used as a starting aid.
starting
and
charging
When connecting an additional battery to boost a discharged bat tery in the
Fig. 2 vehicle, ensure
that:
- the booster battery is of the same nominal voltage as the vehicle battery;
- the interconnecting cables are of sufficient capacity to carry starting curr
nt :
- the cables are interconnected one at a time and to the booster battery first ;
- the cables are connected between the battery terminals in the following order:
first,
+ (positive) to + (positive)
and
then - (negative) to - (negative);
- the engine speed is reduced to 1,000 revfmin or below before disconnecting
the boost battery. The vehicle battery must never be disconnected while the
engine is running.
The electrolyte levels
(1) in each cell are visible through the translucent battery
case or may be checked by fully raising the vent cover
(2)
and
tilting it to one side.
The electrolyte level in each cell
must
be maintained so
that
the separator plate
(3) are
just
covered. To avoid flooding, the battery must
not
be topped up within
half
an
hour
of it having been charged from any source
other
than
the generating
system fitted to the car.
NOTE:
Do
not
leave the battery in a discharged state for any length of time.
When
not
in regular use have the battery fully charged,
and
every fortnight give
a short refresher charge to prevent permanent damage to the battery plates .
More
frequent topping-up of the electrolyte levels may be necessary in hot
weather or when long journeys are made.
To top up the levels raise the vent cover
and
pour
distilled water into the
tro
ugh
(4) until all the rectangular filling slots (5) are full
and
the
bottom
of the
tro
ugh
is
just
covered. Press the cover firmly into position; the correct quantity of distilled
water will automatically be distributed to each cell. In extremely cold conditions,
run
the engine immediately after topping-up to mix the electrolyte.
DO
NOT
USE
A NAKED
LIGHT
WHEN
CHECKING
THE
LEVELS and do
not use tap water for topping-up.
Before fitting a radio or any
other
electrical equipment, make certain that it
has the correct polarity for installation in this vehicle.
Battery
The battery must be kept clean
and
dry, and the terminals should be smeared
Fig. 1 with petroleum jelly. The vehicle must be level when the electrolyte in the cell
is being checked.
IMPORTANT:
The vent cover must be kept closed at all times, except when
topping-up. The electrolyte will flood if the cover is raised while either trickle-
or fast-charging the battery.
Fast
charging should only be undertaken in extreme
circumstances, and must
not
exceed 40 amps for a maximum period of one hour.
A single-cell' heavy discharge tester cannot be used on this type of battery.
On
no occasion should the vent cover be detached from the battery.
UVlrU.KlA1"'l.l: i ne
vent
cover
mUST
oe
xept
ciosec
at
all urnes, except wnen
topping-up. The electrolyte will flood if the cover is raised while either trickle-
or fast-charging the battery.
Fast
charging should only be undertaken in extreme
circumstances, and must
not
exceed 40 amps for a maximum period of one hour.
A single-cell' heavy discharge tester cannot be used on this type of battery.
On
no occasion should the vent cover be detached from the battery.
Fig. 1
~\
~l
Fig. 2
~-
..
-----..
To Next Page
Loading...
