TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
120.
Set SAS PRESS SYS 1 valve (3) and SAS
PRESS SYS 2 valve (4) to VENT.
121.
Set SAS 1 FUNCTION SELECT switch (30)
and SAS 2 FUNCTION SELECT switch (31) to
BALANCE.
122.
Remove PIN 2 (69) from input arm (61). Stow
pin.
123.
Set hydraulic unit controls as follows:
a.
HIGH PRESS REGULATOR valve (52) to
MAXIMUM DECREASE.
b.
SOLENOID SHUTOFF switch (44) to
CLOSED.
c.
SOLENOID valve (53) to CLOSED.
d.
ILCA PRESS SYS 1 valve (1) and ILCA
PRESS SYS 2 valve (2) to VENT.
e.
Push and hold HIGH PRESS RELIEF VALVE
(67) and LOW PRESS RELIEF VALVE (68)
for 15 seconds. Check HIGH PRESS gauge
(13) indicates 0 psi.
f.
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), SAS PRESS SYS 2 VALVE (4), RETURN
SYS 1 valve (5), and RETURN SYS 2 valve
(6) to OFF.
124.
If not needed for further testing, remove indicator
(9).
NOTE
Dial indicator is used in Tests 7, 8,
9, 10, and 17.
125.
If no further testing is required, perform normal
shutdown. (Refer to TM 55-4920-428-13.)
END EXTENSIBLE LINK AUTHORITY TEST
7-436
Change 1
