Downloaded from www.Manualslib.com manuals search engine 6H-2 CHARGING SYSTEM
General Description
Battery
The battery has three major functions in the electrical system.
It is a source of electrical energy for cranking the engine.
It acts as a voltage stabilizer for the electrical system.
It can, for a limited time, provide energy when the electrical
load exceeds the output of the generator.
CARRIER AND HOLD-DOWN
The battery carrier should be in good condition so that it will sup-
port the battery securely and keep it level.
Before installing the battery, the battery carrier and hold-down
clamp should be clean and free from corrosion and make certain
there are no parts in carrier.
To prevent the battery from shaking in its carrier, the hold-down
bolts should be tight enough but not over-tightened.
ELECTROLYTE FREEZING
The freezing point of electrolyte depends on its specific gravity.
Since freezing may ruin a battery, it should be protected against
freezing by keeping it in a fully charged condition. If a battery is
frozen accidentally, it should not be charged until it is warmed.
SULFATION
If the battery is allowed to stand for a long period in discharged
condition, the lead sulfate becomes converted into a hard, crystal-
line substance, which will not easily turn back to the active mate-
rial again during the subsequent recharging. “Sulfation” means
the result as well as the process of that reaction.
Such a battery can be revived by very slow charging and may be
restored to usable condition but its capacity is lower than before.
Downloaded from www.Manualslib.com manuals search engine CHARGING SYSTEM 6H-17
Specifications
Battery
55B24R TYPE
38B20R TYPE
Generator
Tightening Torque Specification
Rated capacity 36 AH/5HR, 12 Volts
Electrolyte 3.1 L (6.55/5.46 US/lmp pt)
Electrolyte S.G. 1.28 when fully charged at 20 °C (68 °F)
Rated capacity 28 AH/5HR, 12 Volts
Electrolyte 2.1 L (4.44/3.70 US/lmp pt)
Electrolyte S.G. 1.28 when fully charged at 20 °C (68 °F)
Type 70 A type
Rated voltage 12 V
Nominal output 70 A
Permissible max. speed 18,000 r/min.
No-load speed 1,300 r/min (rpm)
Setting voltage 14.4 to 15.0 V
Permissible ambient temperature–30 to 90 °C (–22 to 194 °F)
Polarity Negative ground
Rotation Clockwise viewed from pulley side
Fastening partTightening torque
Nm kg-m lb-ft
Body ground bolt 8 0.8 6.0
Generator mounting bolts 23 2.3 16.5
“B” terminal inner nut 4.2 0.42 3.0
“B” terminal outer nut 8 0.8 6.0
Pulley nut 118 11.8 85.5
Rear end frame nuts
4.50.453.5
Rear end cover nuts
Rectifier “B” bolt 3.9 0.39 3.0
Stator stud bolts 8.8 0.88 6.5
Drive end bearing plate screws 2.6 0.26 2.0
Rectifier screws
2.00.201.5
Regulator and brush holder screws
Terminal plate bolt 3.8 0.38 3.0
