TM 9-4910-663-34(22)Adjust VARIABLE LOAD control (R32) to provide a 3 ampere indication on DC AMMETER FIELDCURRENT meter (M7).(23)Set FINE CONTROL 0-5 AMPS (MAX) switch (S29) to the ON position.(24)Rotate FIELD CURRENT (fine) control (R27) counterclockwise and check to see that the indication on DCAMMETER FIELD CURRENT meter (M7) decreases smoothly toward zero.(25)Set circuit breaker switch (CB1) to the OFF position and disconnect the external jumper lead.l.DCAmmeterLoad&StarterOutputCurrentBatteryChargeCurrentMeterCircuit.(1)Set all test stand controls to the preliminary settings listed in table 2-2.(2)Set FIELD CIRCUIT switch (S32, fig 2-5) to the MANUAL position.(3)Set EXTERNAL FIELD EXCITER AC SYSTEM switch (S31) to the ON position.(4)Set DC AMMETER FIELD CURRENT RANGE switch (S30, fig 2-4) to the X6 position.(5)Set FINE CONTROL 0-5 AMPS (MAX) control (S29) to the OFF position.(6)Set FIELD CURRENT 0-32 AMPS (MAX) control (R26) fully clockwise.(7)Set DC VOLTMETER OUTPUT VOLTAGE SELECT switch (S11) to the VAR position, and set DCVOLTMETER OUTPUT VOLTAGE RANGE switch (S12) to the X2 position.(8)Set DC AMMETER LOAD & STARTER OUTPUT CURRENT BATTERY CHARGE CURRENT RANGEswitch (S14) to the X1 position.(9)Connect a jumper lead between the GENERATOR F and REGULATOR B+ binding posts (fig 2-6).(10)Connect a 0-50 DC millivoltmeter to the calibration jacks associated with DC AMMETER LOAD &STARTER OUTPUT CURRENT BATTERY CHARGE CURRENT meter (M3), observing polarity.(11)Set circuit breaker switch (CB1) to the ON position.(12)Check to see that DC VARIABLE POWER SUPPLY 0-32 VDC control (T5, fig 2-7) and VARIABLE LOADcontrol (R32) are set fully counterclockwise.5-10
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