TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
137.
Set electrical and hydraulic unit controls as
follows:
a.
HIGH PRESS REGULATOR valve (52) to
DECREASE.
b.
SOLENOID SHUTOFF switch (44) to
CLOSED.
c.
SOLENOID valve (53) to CLOSED.
d.
Press and hold HIGH PRESS RELIEF VALVE
(67) until HIGH PRESS gauge (13) indicates
0 psi.
e.
HIGH PRESS SHUTOFF VALVE (51) to
CLOSE.
f.
ILCA PRESS SYS 1 valve (1), ILCA PRESS
SYS 2 valve (2). RETURN SYS 1 valve (5),
and RETURN SYS 2 valve (6) to OFF.
138.
Remove dial indicator (77).
139.
If not needed for further testing, remove dial
indicator (9).
NOTE
Dial indicator is used in Tests 7, 8,
9, 10, and 17.
140.
If no further testing is required, perform a normal
shutdown. (Refer to TM 55-4920-428-13.)
END STATIC DEADBAND TEST
Change 1
7-439
