TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
217.
Set electrical and hydraulic unit controls as
follows:
a.
RETURN SHUTOFF valve (47) to OPEN.
b.
HIGH PRESS REGULATOR valve (52) to
DECREASE.
c.
SOLENOID SHUTOFF switch (44) to
CLOSED.
d.
SOLENOID valve (53) to CLOSED.
e.
Press and hold HIGH PRESS RELIEF valve
(67) and LOW PRESS RELIEF valve (68) for
15 seconds. Release valves.
f.
Set HIGH PRESS SHUTOFF valve (51) to
CLOSE.
g.
ILCA PRESS SYS 1 valve (1), ILCA PRESS
SYS 2 valve (2), SAS PRESS SYS 1 valve
(3), and SAS PRESS SYS 2 valve (4) to
VENT then OFF.
h.
RETURN SYS 1 valve (5), and RETURN
SYS 2 valve (6) to OFF.
218.
If jam indicator (78) extends, reset it.
219.
If no further testing is required, perform normal
shutdown (TM 55-4920-428-13).
END RETURN PRESSURE TEST
Change 1
7-451