TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
401.
Set FUNCTION SELECT switch (21) to CLSD
LOOP.
402.
Set electrical and hydraulic unit controls as
follows:
a.
HIGH PRESS REGULATOR valve (49) to
DECREASE.
b.
HIGH PRESS SHUTOFF valve (48) to
CLOSE.
c.
SOLENOID SHUTOFF switch (35) to
CLOSED.
d.
SOLENOID valve (50) to CLOSED.
e.
SAS PRESS SYS 1 valve (44) to VENT.
f.
Push and hold HIGH PRESS RELIEF valve
(53) and LOW PRESS RELIEF valve (54)
for 15 seconds.
g.
SAS PRESS SYS 1 valve (44) to OFF.
h.
RETURN SYS 1 valve (42) to OFF.
403.
Set LINK TEST switch (29) to VALVE.
404.
Remove dial indicator (3). Stow in cover.
405.
If no further testing is required, perform normal
shutdown (TM 55-4920-428-13).
END OF STABILITY TEST
FOLLOW-ON MAINTENANCE:
None
END OF TASK
7-472.4
Change 1