TM 55-1520-240-23-9
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BENCH TEST AFCS COCKPIT CONTROL DRIVE ACTUATOR (CCDA) (AVIM)
(Continued)
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TEST 3
NULL VOLTAGE AND PHASING TEST (THRUST)
NOTE
Perform preliminary procedure before
test. (Refer to TM 55-4920-430-13.)
16.
Set TESTER POWER switch (3) to ON. The
following lamps shall be on:
a.
115V 400 HZ lamp (4).
b.
+28VDC lamp (5).
c.
+5VDC lamp (6).
d.
+15VDC lamp (7).
e.
-15VDC lamp (8).
17.
Set AFCS POWER switches (9 and 10) to ON.
The following lamps shall be on:
a.
115V 400 HZ lamp (11).
b.
+28VDC lamp (12).
c.
5VAC lamp (13).
18.
Set ANALOG SIGNALS ATT SELECT switch
(18) to CCDA.
19.
Set ANALOG SIGNALS ATT synchro (19) to 0.
20.
Set CCDA BRAKE switch (14) to 1.
21.
Set CCDA CLUTCH switch (15) to 0.
22.
Set output arm (16) to center position.
23.
Set CCDA CLUTCH switch (15) to 1.
24.
Set METER switch (20) to AC.
25.
Set METER RANGE switch (21) to 200MV.
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