The check of electrolyte volume |
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Check it with using battery tester. If no
battery tester, measure it with checking the sp.gr of
battery. |
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The check by battery
tester: |
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After connect positive cable of tester with
positive post of battery and negative cable of tester
with negative |
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post of battery, and rest capacity indicator
according to capacity of battery to test, check the condition
of |
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electric volume during turn switch on for
5 second. |
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The result is as under. |
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¡Ü Green - normal |
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¡Ü White - slight discharge |
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¡Ü Red - abnormal |
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|
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The check by sp.gr: |
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the sp.gr of electrolyte is down proportionately
in accordance with a discharged volume of battery. |
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T/fore, the remained capacity
(charged volume) of battery can be calculated by check
sp.gr with using |
| |
the hydrometer. |
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And at this time, as mentioned on table
5-4, the conversion of sp.gr is needed according to different
|
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temperature departed form standard one (25¡É).
The following box shows discharged volume and |
| |
remained capacity (volume) in accordance
with sp.gr. |
| |
Sp.Gr(25¡É)
|
Discharged volume(%)
|
Remained volume(%) |
1.280
|
0
|
100 |
1.230
|
25 |
75 |
1.180
|
50 |
50 |
1.130
|
75 |
25 |
1.080
|
100 |
0 |
|
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|
The check of electrolyte level |
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Eletrolyte level is to be low due to its
evaporation resulted form an electric decomposition of
water |
| |
because charge and discharge are continuing
during battery is served. |
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T/fore, check the acid level form time to
time and fill battery with distilled water to upper lever
if its level |
| |
is down under lower level. At this time,
never use electrolyte (surfuric acid diluted with water). |
| |
|
The check of Terminal |
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The terminal of battery can be corroded
or discolored by electrolyte or a generated gas. |
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If check it, clean terminal by using fine
sand paper or wire brush. |
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The corrosion of terminal causes that electric
current does not flow smoothly even when the connectors
|
| |
are tight or the explosion by spark is happened.
Also, any corroded cable should be cleaned. |
| |
|
The check of condition of battery installation |
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Check whether battery is correctly placed
in carrier and clamp is strongly fastened in order to
press all |
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parts equally. |
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If it is loose, battery is damaged. |
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|