TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
102.
Set electrical and hydraulic unit controls as
follows:
a.
HIGH PRESS SHUTOFF valve (51) to
CLOSE.
b.
HIGH PRESS REGULATOR valve (52) to
DECREASE.
c.
SOLENOID valve (53) to CLOSED.
d.
SOLENOID SHUTOFF switch (44) to
CLOSED.
e.
ILCA PRESS SYS 1 valve (1) and ILCA
PRESS SYS 2 valve (2) to VENT.
103.
Push and hold HIGH PRESS RELIEF valve (67)
and LOW PRESS RELIEF VALVE (68) for 15
seconds.
104.
Set ILCA PRESS SYS 1 valve (1), ILCA PRESS
SYS 2 valve (2), RETURN SYS 1 valve (5), and
RETURN SYS 2 valve (6) to OFF.
105.
If not required for further testing, remove dial
indicator (9).
NOTE
Dial indicator used in Tests 7, 8, 9,
10, and 17.
106.
Remove PIN 3 (73) and bearing from arm (74).
Stow bearing and pin.
107.
If no further testing is required, perform normal
shutdown. (Refer to TM 55-4920-428-13.)
END CYLINDER STROKE TEST
Change 1
7-429
