SC-6
BATTERY
lRemove the cell plug using a suitable tool.
lAdd distilled water up to the MAX level.
Sulphation
A battery will be completely discharged if it is left unattended
for a long time and the specific gravity will become less than
1.100. This may result in sulphation on the cell plates.
To determine if a battery has been “sulphated”, note its voltage
and current when charging it. As shown in the figure, less cur-
rent and higher voltage are observed in the initial stage of
charging sulphated batteries.
A sulphated battery may sometimes be brought back into ser-
vice by means of a long, slow charge, 12 hours or more, fol-
lowed by a battery capacity test.
SPECIFIC GRAVITY CHECK
1. Read hydrometer and thermometer indications at eye level.
2. Convert into specific gravity at 20°C(68°F).
Example:
lWhen electrolyte temperature is 35°C(95°F) and specific gravity
of electrolyte is 1.230, converted specific gravity at 20°C(68°F)
is 1.240.
lWhen electrolyte temperature is 0°C(32°F) and specific gravity
of electrolyte is 1.210, converted specific gravity at 20°C(68°F)
is 1.196.
MEL043F
SEL709E
MEL042FA
SEL007Z
SERVICE DATA AND SPECIFICATIONS (SDS)
SC-37
C
D
E
F
G
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I
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L
MA
B
SC
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
BatteryEKS00MZT
StarterEKS00MZU
AlternatorEKS00MZV
Applied modelYD25 engine
TypeL3/760L
Capacity V-AH12-75
Ty p eM8T76071ZE
MITSUBISHI
Reduction
Applied modelYD25 engine
System voltage V12
No-loadTerminal voltage V 11.0
Current A Less than 145
Revolution rpm More than 3,400
Minimum diameter of commutator mm (in) 31.4 (1.236)
Minimum length of brush mm (in) 11.0 (0.433)
Brush spring tension N (kg, lb)26.7 - 36.1
(2.72 - 3.68, 6.0 - 8.12)
Clearance between bearing metal and armature shaft mm (in) —
Clearance “ ” between pinion front edge and pinion stopper mm (in)—
Movement “ ” in height of pinion assembly mm (in)0 (0, 0)
TypeA3TJ0781 A3TG2681ZE
MITSUBISHI
Applied modelYD25 engine
LHD models RHD models
Nominal rating V-A 12-150 12-130
Ground polarityNegative
Minimum revolutions under no-load
(When 13.5V is applied) rpmLess than 1,000
Hot output current (When 13.5V is applied) A/rpmMore than 35/1,300
More than 105/2,500
More than 136/5,000More than 33/1,300
More than 105/2,500
More than 122/5,000
Regulated output voltage V 14.1 - 14.7
Minimum length of brush mm (in) More than 5.0 (0.197)
Brush spring pressure N (g, oz.)4.1 - 5.3
(418 - 520, 14.74 - 18.34)4.8 - 6.0
(490 - 610, 17.28 - 21.51)
Slip ring minimum diameter mm (in) More than 22.1 (0.870)
Rotor coil resistance at 20°(68°F)W1.6 - 2.0 1.7 - 2.1
