TM 9-4910-663-12
(2) STARTER Binding Posts (fig 2-3). These binding posts STARTER
COMMON, STARTER FREE-RUN, and STARTER INPUT provide means for connecting
a starter to the test stand for free-running testing.
(3) ALTERNATOR Binding posts (fig 2-3). Binding posts T1, T2,
and T3 provide means for connecting the ac output of an alternator
provide means for connecting the field circuit of an alternator that
is to undergo test to the test stand.
(4) GENERATOR Binding Posts (fig 2-3). The binding posts G+ and
G-, provide means for connecting the armature circuit of a generator
that is to undergo test to the test stand. Binding post D is used to
connect the generator equalizer circuit, if applicable, to the test
stand and also to the generator corresponding voltage regulator.
Binding post F is used to interconnect the shunt field of a generator
undergoing test to the test stand.
(5) D-SENSING Switch (S40, fig 2-3). This switch is normally
set to the ON position (for all normal testing) except when required
to perform fail-safe test when interpole lead is broken as required on
certain voltage regulators.
(6) AC/DC SYSTEMS Switches and Binding Posts (fig 2-3). IGN SW
switch (S33) is used when testing some types of ac/dc alternator/rec-
tifier systems for energizing the regulator load contactor. EQUALIZER
COIL TEST switch (S35) is used when testing those voltage regulators
switch is set to ON, it applies a predetermined voltage across the
regulator equalizer coil, thereby reducing the generator output vol-
tage by a specified amount. IGN SW binding post provides means for
connecting the ignition switch input to certain types of ac/dc alter-
nator/rectifier systems during testing. Alternator E and D binding
posts provide means for connecting the voltage regulator into the test
circuit when testing ac/dc alternator systems.
d.
Rheostat Panel.
(1) VOLTAGE ADJ Control (R37, fig 2-2). This control provides
means for adjusting the output voltage of the generator undergoing
test when used with specific types of voltage regulators.
(2) FIELD SHORTING Switch (S38, fig 2-2). This momentary switch,
when pressed, shorts the field control circuit of a generator voltage
regulator undergoing test; it is used during specific tests on some
generator control boxes.
(3) STARTER RHEOSTAT Control (R18, fig 2-2). This control is
used to adjust the input voltage to a starter undergoing test.
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