TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
TEST 11
EXTENSIBLE LINK CENTERING SPRINGS TEST
(SPARE)
151.
Perform steps 1 thru 40. Check initial control and
valves in steps 22 and 23.
NOTE
Tests 2, 3, 4, and 5 MUST be
performed before this test.
152.
Set electrical unit controls as follows:
a.
SAS 1 FUNCTION SELECT switch (30) to
CLSD LOOP.
b.
SAS 1 VALVE CONTROL switch (34) to
NULL.
c.
SAS 1 LINK TEST switch (38) to CROSS
FDBK.
d.
SAS 2 FUNCTION SELECT switch (31) to
CLSD LOOP.
e.
SAS 2 VALVE CONTROL switch (35) to
NULL.
f.
SAS 2 LINK TEST switch (39) to CROSS
FDBK.
g.
SYSTEM SELECT switch (43) to SAS 1.
153.
Set up 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 OPENED.
d.
SOLENOID SHUTOFF switch (44) to OPEN.
e.
Slowly turn HIGH PRESS REGULATOR
valve (52) to INCREASE until HIGH PRESS
gauge (13) indicates 1500 psi.
f.
ILCA PRESS SYS 1 valve (1) and ILCA
PRESS SYS 2 valve (2) to PRESS.
g.
Slowly turn HIGH PRESS SHUTOFF valve
(51) to OPEN.
154.
SAS PRESS SYS 1 valve (3) to PRESS.
155.
Insert PIN 2 (69) in input arm (61) through fixture
(70).
7-442
Change 1
