Triumph TR2 - BATTERIES

ELECTRICAL
EQUIPMENT
BArnRIES
Models GTW7A/2, GTW9A/2, GT9A/2 and
GTZ9A/2.
I. ROUTINE MAINTENANCE
Every 1,000 miles, or monthly (weekly in
hot climates) examine the level of the
electrolyte in the cells, and if necessary add
distilled water to bring the level up to the
top of the separators. A convenient
method of adding the distilled water is by
means of the Lucas Battery Filler, a device
which automatically ensures that the correct
level is attained. The action of resting the
nozzle of the battery filler on the separators
opens a valve and allows distilled water to
flow into the cell, this being indicated by air
bubbles rising in the filler. When the
correct level has been reached air bubbles
cease and the battery
filler
can then be
withdrawn from the cell. A special non-
spill nozzle prevents leakage from the filler.
Some earlier batteries incorporated
correct-
acid-level devices for ease of topping up.
These consist of a central plastic tube with
a perforated flange--one being located in
each cell filler hole. The method of topping
up is as follows
:-
Pour distilled water into the perforated
flange
not down the central tube of the
correct-acid-level device until no more
water will enter the cell and the water
begins to rise in the filling hole.
This will
happen when the electrolyte level reaches
the bottom of the central tube and prevents
further escape of air displaced by the
topping-up water. Lift the tube slightly and
allow the small amount of visible water in
the
filling hole to drain into the cell.
WARNING
: Do not repeat these operations.
The acid level will be correct and the rubber
plugs can be refitted.
2. SERVICE DATA
(a) Capacity
and Charging Rates
I l I
Battery
No. of
Plates in
each cell
I Ampere-hour capacity
tq--z hour rate hour rate
mint)
l 4
Volume of
electrolyte
required to
fill
one cell
(b! Swcific Gravitv of Electrolvte
. ,
~ie specific gra&y of the electrolyte varies with the temperature, therefore, for con-
venience in comparing specific gravities, this is always corrected to 60°F., which is adopted
as a reference temperature. The method of correction is as follows
:
Fur every 5°F. beolw 60°F.: deduct .002 from the observed reading to obtain the true
specific gravity at 60°F.
For every 5°F. dove 60°F., add .002 to the observed reading
to obtain the true specific gravity at 60°F
The
temDerature must be that indicated bv a thermometer actually immersed in the
Initial
Ch
C
arging
urrent
(Amps.)
Normal
Recharge
Current
(Amps.)
electrolyte, and not the air temperature.
Home Trade and Climates ordinarily below
90°F. (32°C.).
Specific Gravity of Acid
(corrected to 60°F.)
Filling
1.270
Climates frequently over 90°F. (32°C.).
Specific Gravity of Acid (corrected to 60°F.)
1
Fully Charged
1.270--1.290
Filling
1.210
Fully Charged
1.210-1.230