TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
340.
Press CYCLE MOTOR switch (45) to OFF.
341.
Set SAS 1 SQ WAVE control (36) and SAS 2 SQ
WAVE control (37) to MIN.
342.
Set SAS 1 FUNCTION SELECT switch (30)
and SAS 2 FUNCTION SELECT switch (31) to
BALANCE.
343.
Set electrical and hydraulic unit control as follows:
a.
HIGH PRESS REGULATOR valve (52) to
DECREASE.
b.
SOLENOID SHUTOFF switch (44) to CLOSE.
c.
SOLENOID valve (53) to CLOSED.
d.
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.
e.
HIGH PRESS SHUTOFF valve (51) to
CLOSE.
f.
Press and hold HIGH PRESS RELIEF VALVE
(67) for 15 seconds.
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.
344.
Remove and stow PIN 1 (65) and cycle motor
linkage (64).
345.
If no further testing is required, perform normal
shutdown (TM 55-4920-428-13).
END EXTERNAL DYNAMIC LEAKAGE TEST
Change 1
7-467