TM 5-6115-400-35
screw.
The most convenient
method of performing this operation
is to insert the gage, press the
armature down against it to hold it in
place, and then turn the contact
screw until the contacts barely
touch.
(b) Voltage
Setting-(fig.
Disconnect battery cable from
regulator, and connect voltmeter
between regulator battery terminal,
and ground screws in the end of the
regulator.
With the generator
operating at approximately 3,000
RPM and the regulator at operating
temperature, note the voltage
setting.
Adjust by turning the
adjusting screw at the base of the
unit, thereby changing the spiral
spring tension.
Increasing the
spring tension increases the voltage
setting.
After each change of
adjustment, reduce
generator
speed until cutout relay opens; then
return to speed and read voltage.
(3) Current Regulator.
Two checks and
adjustments are required on the current
regulator: air gap and current setting. The
AIR GAP and not the POINT OPENING is
checked and adjusted-procedure being
the same as for the voltage regulator
above.
Current Setting (fig. 13). To check the
current regulator setting, it is necessary to
keep the voltage regulator from operating
so that the generator output can increase
to the value for which the current
regulator is adjusted, and thus cause the
current regulator to operate.
Three
methods of preventing voltage regulator
operation are available. Regardless of
the method used, disconnect battery cable
from the regulator and connect an
accurate ammeter in series between
these junctions. This meter will measure
the current regulator setting. The three
methods of preventing voltage regulator
operation are:
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