TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
f.
ILCA PRESS SYS 1 valve (1) and SAS
PRESS SYS 1 valve (3) to PRESS.
g.
Slowly turn HIGH PRESS SHUTOFF valve
(51) to OPEN.
h.
Install PIN 2 (69) in input arm (61).
i.
Slowly turn SAS 1 VALVE CONTROL (34)
to full EXTEND.
55.2. Record reading indicated on DVM (58).
55.2.1. Set electrical unit controls as follows:
a.
SAS 2 FEEDBACK SELECT switch (33) to
CROSS.
b.
SAS 2 LINK TEST switch (39) to CROSS
FDBK.
c.
SYSTEM SELECT switch (43) to SAS 2.
55.3. Record DVM (58) reading and compare to
reading from step 55.2.
NOTE
If difference between steps 55.2 and
55.3 reading is greater than 0.0250,
adjust the extensible link cross
feedback transducer (Task 7-100).
If the difference cannot be adjusted,
replace extensible link cross feedback
transducer. Repeat Tests 2, 3, and 4.
55.4. Slowly turn SAS 1 valve control (34) to NULL.
55.5. Remove pin 2 (69) from input arm (61). Stow pin.
56.
Deleted–Moved to step 55.2.1.
57.
Deleted–Moved to step 55.3.
58.
Set hydraulic unit controls as follows:
a.
ILCA PRESS SYS 1 valve (1) to OFF.
b.
ILCA PRESS SYS 2 valve (2) to OFF.
c.
SAS PRESS SYS 1 valve (3) to OFF.
d.
SAS PRESS SYS 2 valve (4) to OFF.
e.
RETURN SYS 1 valve (5) to OFF.
f.
RETURN SYS 2 valve (6) to OFF.
END EXTENSIBLE LINK CROSS FEEDBACK
TRANSDUCER NULL VOLTAGE TEST
FOLLOW-ON MAINTENANCE:
Test 5: No. 1 and No. 2 Extensible Link Phase Test
(Spare).
Change 1
7-417
