TM 9-4910-663-34
(MAX) control (R26) for a 10 ohm indication on the ohmmeter. Disconnect the ohmmeter.
(4)
Connect a test lead from the GENERATOR F binding post to the REGULATOR B+ binding post, and
connect a second test lead from the positive DC VARIABLE VOLTS OUTPUT binding post to the GENERATOR G+
binding post.
(5)
Connect the positive lead of an external DC voltmeter (0-5 volt range) to the REGULATOR G+ binding
post, and connect the negative lead of the external DC voltmeter to the REGULATOR B+ binding post.
(6)
Set DC AMMETER LOAD & STARTER OUTPUT CURRENT BATTERY CHARGE CURRENT RANGE
switch (S14, fig 2-4) to the X1 position.
(7)
Set DC VOLTMETER OUTPUT VOLTAGE SELECT switch (S11) to the VAR position, and set DC
VOLTMETER OUTPUT VOLTAGE RANGE switch (S12) to the X2 position.
(8)
Set MILLIVOLT METER MILLIVOLT DROP RANGE switch (S16) to the X10 position.
(9)
Make certain VARIABLE LOAD control (R32) is set fully counterclockwise. Set LOAD SELECTION 0-25
AMPS/0-12.5 AMPS switch (S24) to the ON position.
(10)
Make certain that DC VARIABLE POWER SUPPLY 0-32 VDC control (T5, fig 2-7) is set fully
counterclockwise.
(11)
Set circuit breaker switch (CB1) to the ON position.
(12)
Set MASTER LOAD DISCONNECT switch (S8) to the ON position.
(13)
Set D.C. VARIABLE VOLTS switch (S10) to the ON position, and adjust DC VARIABLE POWER SUPPLY
0-32 VDC control (T5) slowly to obtain a 2 volt indication on the external DC voltmeter.
(14)
Press MILLIVOLT METER MILLIVOLT DROP PRESS TO READ switch (S34) momentarily, and check to
see that MILLIVOLT METER MILLIVOLT DROP meter (M4) indicates 2 volts.
p.
Generator D-Sensing, Circuit (fig 2-6).
(1)
Set all test stand controls to the preliminary settings listed in table 2-2.
(2)
Connect an ohmmeter between the GENERATOR D binding post and the REGULATOR D binding post.
(3)
Check to see that the ohmmeter indicates continuity when GENERATOR D-SENSING switch (S40) is set
to the ON position, and an open circuit when the switch is set to the OFF position.
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