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Check the alternator function in accordance with ammeter
reading.When the ignition and the engine are off, the ammeter
shows the voltage aross the battery terminal, and after the engine
starting - the voltage across the alternator terminal.
The voltage across the alternator terminal should be 13.6 -
14.7 V.
If the voltage is increased, check the alternator or the voltage
regulator and eliminate the defect.
The built-in integral voltage regulators are not repaired. In
case of breakage of the regulator replace it for the regulator of
the same type.
Periodically check the brush assembly and the contact part
of the integrated voltage regulator for proper condition. To do
this, remove the alternator 665-3701 from the automobile, and
remove the brush assembly on the alternator 161.3771. Replace
worn-out brushes.
Maintenance of the Storage Battery
The storage battery is installed on the bracket under the hood.
The storage battery is connected parallel to the alternator.
If in the service period of the automobile, the storage battery is
gradually discharging or is excessivly charging by the alternator,
and the electrolyte begins to gas, check the alternator for proper
condition.
Keep the storage battery clean and in charged state, protect
its leads and terminals from oxides as indicated in Lubrication
Table.
Periodically clean vent holes in plugs, check the electrolyte
level and, if required, add distilled water.
Check the electrolyte level in each battery cell on a cold
battery and if necessary, add distilled water up to the lower end
of the filler hole tube.
Before operation, depending on the climatic condition under
which the automobile is to be employed, correct the electrolyte
specific gravity.
New automobiles delivered from the manufacturing plant are
furnished with the storage batteries filled with electrolyte of the
same specific gravity equal to 1.27 g/cm
3
.
The battery discharged by more than 25% in winter and
more than 50% in summer is to be charged.
