TM 9-4910-663-12
(4) Install cable assemblies, part numbers 48278 and 48277, into
rectifier receptacles (fig 2-19) and connect to binding posts located
in rectifier chamber (6, fig 4-3). Close rectifier chamber door.
(5) Install regulator on regulator mounting bracket (33 or 36,
(6) Connect regulator cable assemblies to regulator receptacles
(refer to fig 2-13) and regulator ac/dc terminals. Using test cable
No. 48276 connect regulator G+ lead to REGULATOR G+ binding post (fig
F-B to REGULATOR F-B binding post. Using test cable No. 48275 connect
regulator B+ lead to REGULATOR B+ binding post, regulator B- lead to
REGULATOR B- binding post, regulator D lead to AC/DC SYSTEMS D binding
post, regulator E lead to AC/DC SYSTEM E binding post, and regulator
IGN lead to AC/DC SYSTEM IGN SW binding post.
(7) Connect ground lead between regulator case and REGULATOR GND
binding post (fig 2-3).
(8) Install batteries in battery compartment (4, fig 4-3) of
test stand and connect to proper binding posts on terminal board as-
(9) Set POLARITY REVERSING switch (S7, fig 2-2) to NEG GND posi-
tion.
(10) Set BATTERY CIRCUIT SELECTOR switch (S6, fig 2-2) to 24V
position.
(11) Set FIELD CIRCUIT switch (S32, fig 2-2) to REGULATOR posi-
tion.
(12) Set DC VOLTMETER OUTPUT VOLTAGE SELECT switch (S11, fig
ON position, observe battery voltage on DC VOLTMETER OUTPUT VOLTAGE
meter (M2, fig 2-1), and then set DC VOLTMETER OUTPUT VOLTAGE SELECT
(S11) switch tO RECT GEN position.
(13) Position MASTER LOAD DISCONNECT switch (S8, fig 2-2) to
OFF.
Do not start the varidrive with a load applied.
(14) Start varidrive by pressing START pushbutton switch (S3,
(15] Using SPEED CONTROL (fig 2-4), bring alternator up to
minimum speed for rated output voltage (cut-in speed is approximately
2000 rpm).
(16) If regulator requires ignition input set AC/DC SYSTEMS IGN
SW switch (S33, fig 2-3) to ON.
(17) Set MASTER LOAD DISCONNECT switch (S8, fig 2-2) to ON.
Change 1
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