TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
63.
Remove pin (63) from cycle motor linkage (64).
Position linkage in input arm (61).
64.
Remove PIN 1 (65) from stowage. Install PIN 1
in arm (61) and linkage (64).
NOTE
Bring cycle motor arm bearing into
alignment with input arm from below.
65.
Press CYCLE MOTOR switch (45) to ON.
NOTE
Motor runs at about 20 cycles per
minute. Fifty cycles take about 2.5
minutes.
66.
Check for leaks at external dynamic seal (66).
Leaks shall not exceed 1 drop in 50 cycles.
67.
Press CYCLE MOTOR switch (45) to OFF.
68.
Remove and stow PIN 1 (65) and linkage (64).
Install pin (63) in linkage.
69.
Set ILCA PRESS SYS 2 valve (2) to VENT, then
OFF.
70.
Manually move input arm (61) through full cycle.
Check for the following:
a.
No leaks from relief valve (62) on No. 1 or
No. 2 system.
b.
No binding throughout full cycle of input arm
(61).
c.
No static leaks.
NOTE
If any malfunctions appear during test
steps 70a thru c, go to steps 62a thru
c.
71.
Set ILCA PRESS SYS 2 valve (2) to PRESS.
72.
Set ILCA PRESS SYS 1 valve (1) to VENT, then
OFF.
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