TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
TEST 12
PROOF PRESSURE TEST (ALL)
197.
Perform steps 1 thru 40. Check initial control and
valve settings steps 22 and 23.
NOTE
Tests 2, 3, 4, and 5 MUST be
performed before this test.
198.
Set electrical and hydraulic unit controls as
follows:
a.
Check RETURN SHUTOFF valve (47) is
OPEN.
b.
RETURN SYS 1 valve (5) and RETURN SYS
2 valve (6) to RETURN.
c.
SOLENOID valve (53) to OPEN.
d.
SOLENOID SHUTOFF switch (44) to OPEN.
e.
Slowly turn HIGH PRESS REGULATOR
valve (52) toward INCREASE until HIGH
PRESS gauge (13) indicates 1500 psi.
f.
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
PRESS.
g.
Slowly turn HIGH PRESS SHUTOFF valve
(51) to OPEN.
199.
Install PIN 2 (69) through input arm (61) and
fixture (70).
200.
Turn HIGH PRESS SHUTOFF valve (51) to
CLOSE.
201.
Turn HIGH PRESS REGULATOR valve (52) to
full DECREASE.
Change 1
7-447
