IRemove the cell plug using a suitable tool.
IAdd 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 ªsulphatedº, note its volt-
age and current when charging it. As shown in the figure, less
current 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 20ÉC (68ÉF).
Example:
IWhen electrolyte temperature is 35ÉC (95ÉF) and specific grav-
ity of electrolyte is 1.230, converted specific gravity at 20ÉC
(68ÉF) is 1.240.
IWhen electrolyte temperature is 0ÉC (32ÉF) and specific grav-
ity of electrolyte is 1.210, converted specific gravity at 20ÉC
(68ÉF) is 1.196.
MEL043F
SEL709E
MEL042FA
BATTERY
How to Handle Battery (Cont'd)
SC-4
Battery
Applied model TD27Ti ZD30DDTi
Type L2-580 R (65 Ah) L2-580 L (65 Ah) L3-760 R (75 Ah) L3-760 L (75 Ah)
Capacity V-AH 12-55 12-64
Starter
TypeS13-327 S13-527B S14-405B
HITACHI make
Applied model TD27Ti ZD30DDTi
System voltage V 12
No-loadTerminal voltage V 11.0
Current A Less than 160
Revolution rpm More than 4,000 More than 3,300 More than 2,700
Minimum diameter of commutator mm (in) 35.5 (1.398) 35.5 (1.398)
Minimum length of brush mm (in) 9.0 (0.354) 11.0 (0.433) 11.0 (0.433)
Brush spring tension N (kg, lb) Ð28.4 - 34.3
(2.9 - 3.5, 6.4 - 7.7)28.4 - 34.3
(2.9 - 3.5, 6.4 - 7.7)
Clearance between bearing metal and armature shaft
mm (in)ÐÐÐ
Clearance ªº between pinion front edge and
pinion stopper mm (in)ÐÐÐ
Movement ªº in height of pinion assembly mm (in)0.3 - 1.5
(0.012 - 0.059)0.3 - 2.0
(0.012 - 0.079)0.3 - 2.0
(0.012 - 0.079)
Alternator
TypeLR190-752 0 123 310 051
HITACHI make BOSCH make
Applied model ZD30DDTi TD27Ti
Nominal rating V-A 12-90 12-70
Ground polarityNegative
Minimum revolutions under no-load (When
13.5V is applied) rpmLess than 1,000 Less than 1,000
Hot output current (When 13.5V is applied)
A/rpmMore than 23/1,300
More than 65/2,500
More than 87/5,000More than 26/1,300
More than 58/2,500
More than 72/5,000
Regulated output voltage V 14.1 - 14.7
Minimum length of brush mm (in) More than 6.0 (0.237) 2 (0.08)
Brush spring pressure N (g, oz) 1.00 - 3.43 (102 - 350, 3.60 - 12.34) 1.80 - 2.40 (184.6 - 244.8, 6.47 - 8.63)
Slip ring minimum diameter mm (in) More than 26.0 (1.024) 13.8 (0.543)
Rotor coil resistance at 20É (68ÉF)W2.67 2.47 - 2.73
SERVICE DATA AND SPECIFICATIONS (SDS)
SC-30
