TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
PRELIMINARY PROCEDURE
NOTE
Steps 1 thru 41 apply to spare ILCA.
Steps 1 thru 7 apply to thrust ILCA.
1.
Setup hydraulic unit controls as follows:
a.
ILCA PRESS SYS 1 valve (1) to VENT.
b.
ILCA PRESS SYS 2 valve (2) to VENT.
c.
SAS PRESS SYS 1 valve (3) to VENT.
d.
SAS PRESS SYS 2 valve (4) to VENT.
e.
RETURN SYS 1 valve (5) to RETURN.
f.
RETURN SYS 2 valve (6) to RETURN.
2.
Remove thumbscrew (7) from manifold (8).
3.
Remove dial indicator (9). Stow indicator in
cover.
4.
Slide four screws (10) out of manifold (8).
CAUTION
Packings must not be damaged;
otherwise, actuator will malfunction.
5.
Position actuator (11) on manifold (8) with input
(12) to right.
6.
Check that actuator (11) is seated. Install four
screws (10). Torque to 30-35 inch-pounds.
Change 1
7-405