55
BATTERY
TECHNICAL SPECIFICATION :
Make, voltage & type
: Exide,12V MX 9-B
Capacity
: 9 AH
Specific gravity of electrolyte
: 1.24 for use above
for initial filling of new battery
10°C
Specific gravity of electrolyte
: 1.28 for use below
for initial filling of new battery
10°C
Electrolyte volume
: 0.50 litres
Initial charging duration
: 8 ~ 12 hrs
Initial charging current
: 0.9 to 1.0 A
INITIAL CHARGING PROCEDURE :
1)
Pull of the short plastic tube on the exhaust vent
outlet and replace it with the long open tube provided
with battery.
2)
Do not crimp or bend the exhaust tube. This is a
safety device to remove fumes. Blockage of this
tube is liable to cause an explosion.
3)
Fill each cell with dilute sulfuric acid of the correct
specific gravity (1.24 at room temp. for use above
10°C and 1.28 at room temp. for use below 10°C).
4)
Allow the battery after filling to stand for half an
hour.
5)
Keep vent plugs open. Connect battery to charger
(P.No. 37 20 3102) and charge at 0.9.
6)
Charge continuously for 8 to 12 hours taking specific
gravity readings every hour. Fully charged condition
is indicated when all cells are gassing freely and
evenly and show no rise in specific gravity over 3
successive readings.
7)
After charging push vent plugs firmly into place
and wash off acid spillage with water and dry the
battery.
CHECKING THE SPECIFIC GRAVITY :
The charge condition of the individual cell can be
checked by measuring specific gravity of electrolyte in
that cell. The specific gravity of electrolyte can be
checked by using Hydrometer having small diameter
spout. Such a Hydrometer is available in Spare Part
Dept. or can be directly procured from market .
For measuring the specific gravity bring the electrolyte
in the Hydrometer to eye level, and read the gradua-
tions on the float scale bordering on the lower meniscus
(i.e. curved down portion of electrolyte surface) as shown
in the figure.
Specific gravity of fully charged Battery, at 27
0
C (Room
Temperature)
: 1.23 to 1.24 in Tropical climate
: 1.27 to 1.28 in Cold climate
Checking battery specific gravity
After charging is over, fit the filling caps, Wash acid
spillage with water. Dry the battery. Ensure terminals
are clean. Install the battery on vehicle as described
below:-
BATTERY INSTALLATION :
a)
Ensure that in all six cells the level of electrolyte
is near the maximum level mark.
b)
To clean & dry the surface wipe the top of the
battery with a clean cloth. Install the battery on its
rubber seat. Fasten the battery firmly with the band.
c)
Connect cables to the positive and negative
terminals properly. Reverse connections will
damage the charging system permanently since
the DC Regulator may get damaged due to
excessive current in the reverse direction.
d)
Always connect the “negative (earthing) terminal
Iast”.
e)
Clean the battery terminals and cable connections.
Smear them with petroleum jelly to avoid corrosion
(NEVER USE ORDINARY GREASE) .
f)
Route the battery exhaust tube properly. Do not
fold or crimp as it may cause explosion of the
battery.
g)
Check that the battery cables connections are firm
and cables do not rub against any metal
components.
Electrolyte level inspection
A - Battery B - Upper level C - Lower level
Hydrometer
Read here
A
C
B
Summary of Contents for Legend 00300728
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