TM 9-4910-663-34
(28)
Set circuit breaker switch (CB1) to the OFF position, and disconnect the test leads and external DC
voltmeter.
i.
Battery Charge Circuit.
(1)
Make sure that all batteries are disconnected from the battery terminals in the battery compartment (fig 2-
9).
(2)
Set all test stand controls to the preliminary setting listed in table 2-2.
(3)
Set circuit breaker switch (CB1) to the ON position.
(4)
Set BATTERY CIRCUIT SELECTOR switch (S6, fig 2-5) to the 24 V position.
(5)
Set DC VOLTMETER OUTPUT VOLTAGE RANGE switch (S12, fig 2-4) to the X2 position, and set DC
VOLTMETER OUTPUT VOLTAGE SELECT switch (S11) to the BAT position.
(6)
Set MASTER LOAD DISCONNECT switch (S8) to the ON position.
(7)
Adjust CHARGE TIMER (MINUTES) control (TD1, fig 2-7) to the 5 minute position, and adjust BATTERY
CHARGE CIRCUIT control (T3) to provide a 12 volt indication on DC VOLTMETER OUTPUT VOLTAGE meter (M2).
(8)
Set LOAD SELECTION 25 AMPS/12.5 AMPS switch (S23) to the ON position.
(9)
Press DC AMMETER LOAD & STARTER OUTPUT CURRENT BATTERY CHARGE CURRENT PRESS
FOR BATTERY CHARGE RATE switch (S15), and read BATTERY CHARGE CIRCUIT control (T3) to maintain the 12
volt indication on DC VOLTMETER OUTPUT VOLTAGE meter (M2).
(10)
Check to see that CHARGE INDICATOR (DS8) is lighted, and that DC AMMETER LOAD & STARTER
OUTPUT CURRENT BATTERY CHARGE CURRENT meter (M3) indicates approximately 10 amperes when switch
(S15) is pressed.
(11)
Check to see that CHARGE TIMER (MINUTES) control (TD1) times out (CHARGE INDICATOR DS8 goes
off) after five minutes.
(12)
Set circuit breaker (CB1) to the OFF position.
j.
Starter Test Circuit.
(1)
Set all test stand controls to the preliminary settings listed in table 2-2.
(2)
Connect a test lead from the positive (red) DC VARIABLE VOLTS OUTPUT binding post (fig 2-5) to the
STARTER FREE RUN binding post (fig 2-6), and connect a second test lead from the negative (black) DC VARIABLE
VOLTS OUTPUT binding post to the STARTER COM binding post.
5-7
