Triumph TR6 PI Operation Manual page 39

MAINTENANCE
(33) Check battery condition: clean and grease connections
With battery in location
I. Check battery and surrounding area for corrosion
from battery chemicals.
2. Clean off any cprrosion found.
3. Check visually for cracks in battery case.
4.
Report any case cracks found.
5.
Check security of terminal connections.
6. Coat terminals with petroleum jelly.
F or each cell in turn:·
7. Check electrolyte specific gravity, using an
hydrometer, which if correct will approximate to the
tabled readings below.
NOTE
(a)
Do NOT check S.G. immediately after adding
distilled water as a false reading may be obtained.
(b) S.G. readings approximately equal for each cell
Indicate a battery in good condition. Conversely, it'
one or more cells show a reading lower than the
others the battery is approaching the end of its useful
life.
Charge condition of cell - temperate climate
Ambient Specific Gravity of Electrolyte
Temperature
°c
Charged Half-Charged
Discharged
5 1'287
1'207 1'117
15 1'280 1'200 1·110
25 1'273
1'193 1'103
35 1'226 1'186 1·096
.
Charge condition of cell - tropical climate
15
1'250 1'180 1·100
25 1'243 1·173
1'093
35 1·236 1·166
1'086
52 1'224 1·154
1'074
8. Check voltage,using a heavy discharge tester, which if
correct will give approximately. equal readings for
each cell.
CAUTION: This check should NOT be made on a
battery in a low state of charge as shown by
procedure 7 as damage to the battery can result.
NOTE(
a)
Before making this check on a battery that haf
Just completed an operational journey, the headlamps
should be switched on for 2 or 3 minutes to remove
any surface charge.(
b)
Vol tage readings
allProximately equal for each cell indicate a battery
in! good condition. Conversely, if one or more cells
show a reading Irwer than the others, or a reading
that falls d"uring the test, the battery is approaching
the end of its useful life.
10.00.14
Triumph TR6 Manual. Piut No. 545277 Issue 1