TM 55-1520-240-23-6
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EXTENSIBLE LINK ACTUATOR CYLINDER FUNCTIONAL TEST (AVIM)
(Continued)
7-97
96.
Turn HIGH PRESSURE REGULATOR valve (49)
to DECREASE.
97.
Set SOLENOID valve (50) to CLOSED.
98.
Set SOLENOID SHUTOFF switch (35) to
CLOSE.
99.
Check for external leaks and pressure damage.
There shall be no leaks or visual damage.
100.
Set hydraulic unit controls as follows:
a.
AFCS PRESS SYS 1 valve (44) to VENT.
b.
Push and hold HIGH PRESS RELIEF VALVE
(53) and LOW PRESS RELIEF valve (54)
for 15 seconds.
c.
AFCS PRESS SYS 1 valve (44) to OFF.
d.
RETURN SYS 1 valve (42) to OFF.
101.
Set electrical unit controls as follows:
a.
VALVE CONTROL (25) to NULL.
b.
LINK TEST switch (29) to VALVE.
102.
If no further testing is required, perform normal
shutdown (TM 55-4920-428-13).
END OF RETURN PROOF PRESSURE TEST
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