TM 55-1520-240-23-9
11-280
AFCS INTERFACE TEST
(Continued)
11-280
TEST 6
YAW ILCA AUTHORITY/PHASING TEST (BOTH)
26.
Set AFCS SYSTEM SEL switch to 1 or 2.
(System under test.)
27.
Set AFCS line test set switches as follows:
a.
METER SOURCE switch (3) to ILCA DRIVE.
b.
MONITOR SELECT switch (4) to YAW.
c.
MONITOR SELECT FDBK switch (5) to
SELF.
d.
ILCA DRIVE YAW switch (12) to 0.
e.
HYDR VALVE switch (8) to OPEN.
28.
Set ILCA DRIVE YAW switch (12) and MONITOR
SELECT FDBK switch (5) to positions shown in
Table 11-5. Read voltages on digital display (6).
(See Table 11-5.) Observe response of actuator
(13). (See Table 11-6.)
29.
Set ILCA DRIVE YAW switch (12) to 0.
30.
Set HYDR DRIVE switch (8) to CLOSE.
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