TM 55-1520-240-23-9
11-280
AFCS INTERFACE TEST
(Continued)
11-280
TEST 11
DIRECTIONAL (YAW) CPT NULL OUTPUT TEST
(BOTH)
59.
Install yoke (28) and pedal rig pin (29) in copilot’s
controls (30).
60.
Set AFCS SYSTEM SEL switch (1) to 1 or 2.
(System under test.)
61.
Set METER SOURCE switch (3) to CPT
MONITOR.
62.
Set CPT MONITOR switch (31) to
DIRECTIONAL. Read digital display (6). Reading
shall be -0.05 to +0.05 VAC.
Pedal inputs can cause the rotor
heads to turn.
63.
Remove pedal rig pins (29).
64.
Apply full right pedal. Read digital display (6).
Reading shall be -4 to -6 VAC.
65.
Apply full left pedal. Read digital display (6).
Reading shall be +4 to +6 VAC.
66.
Install pedal rig pins (29).
END YAW CPT NULL AND OUTPUT TEST (BOTH)
11-1184
