Hudson 1955 Rambler, Техническое и сервисное руководство

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are available. Regardless of the method used,
connect an ammeter into the charging circuit
at the regulator "Bat" terminal. The first
method listed below should be used for
preliminary checks wherever possible since
it does not require removal of the regulator
cover. The various methods are as follows:
Quick Check Method
Connect ammeter into charging circuit.
Turn on all lights and accessories.
Operate generator at specified speed for
15 minutes with cover in place. (This
establishes operating temperature.)
Insert screw driver blade through hole in
regulator base (Fig. 20). This shorts out the
voltage regulator. (Hold screw driver firmly
with blade touching regulator base and shield
at same time.)
Cycle generator and note current setting.
Adjust as described for the voltage
regulator (Fig. 14).
FIGURE 20—Quick Check Method for Cutting
Out Voltage Regulator in Order to Check
Current Regulator Setting
Load Method
Connect ammeter into charging circuit.
Place load across battery about equal to
current regulator setting. Load may be a
carbon pile or bank of lights.
Operate generator at specified speed for
15 minutes with cover in place.
Cycle generator and note current setting.
Adjust as described for the voltage regulator
(Fig. 14).
Adapting Voltage Regulator Setting For Unusual
Conditions
The voltage regulator setting must often be
"tailored" to adapt it to the battery and
type of service. The ideal setting is that
which will keep the battery at or near full
charge, with the minimum use of water. The
normal setting (value shown in test specifi-
cations) will be right for the average
service. But if service is above or below
average, the setting may be tailored to fit
the operation.
Either one of two conditions which may
exist will require tailoring: Battery is
being overcharged (using too much water) ;
Battery remains undercharged (3/4 charge or
less).
If the battery is being overcharged, the
voltage setting is too high. Reduce the
setting about .1 or .2 of a volt at a time
and check for improved condition. It
rarely will be necessary to lower voltage
below 6.9 volts on a 6-volt system.
CAUTION: Whenever the voltage setting
is reduced, the cut-out relay must also
be checked and reduced if necessary. It
must be at least 5 volt less than
voltage regulator setting.
If the battery is consistently under-
charged, the voltage setting may be too low.
Increase .1 volt at a time and check for
improved condition. It rarely will be neces-
sary to increase voltage more than 7.5.
Always he cautious when increasing voltage
because of the danger to lights and other
accessories during cold weather operation.
NOTE: Always make sure that the rubber
gasket is in place between the cover
and base before replacing the cover.
The gasket prevents entrance of mois-
ture, dust, and oil vapors which might
damage the regulator.
Before tailoring the voltage setting for
either condition, be sure the battery is
normal, not sulphated, not permanently
damaged due to having been overheated, not
operating in too hot a location, or insuffi-
cient ventilation.
Temperature Compensation
Voltage regulators are compensated for
temperature by means of a bi-metal thermo-
static hinge on the armature. This causes the
regulator to regulate at a higher voltage
when cold which partly compensates for the
fact that a higher voltage is required to
charge a cold battery.
Reversed Polarity
If the polarity of the generator is reversed,
the cut-out relay contact points will vibrate
and burn. To make sure the generator has the
correct polarity, after reconnecting regulator
E L E C T R I C A L
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