TM 55-1520-240-23-6
7-97
EXTENSIBLE LINK ACTUATOR CYLINDER FUNCTIONAL TEST (AVIM)
(Continued)
7-97
PRELIMINARY PROCEDURE
NOTE
Electrical unit AFCS 2 switches and
hydraulic unit RETURN SYS 2, AFCS
PRESS SYS 2, and ILCA PRESS
SYS 1 and SYS 2 valves are not used
in these procedures.
Pitch, roll and yaw are tested as spare
links.
After test set has been in operation,
HIGH PRESS gage and LOW PRESS
gage will not return to 0 psi, when
shutoff and regulator valves are
closed and relief valves are pressed.
The HIGH PRESS gage may read 20
to 35 psi. The LOW PRESS gage
may read 25 to 60 psi. This is normal.
1.
Remove screw (1) from post snug (2) of dial
indicator (3). Remove indicator.
2.
Stow dial indicator (3) in cover.
3.
Remove two screws (4) from AFCS manifold (5)
and remove manifold.
Do not damage seals. Otherwise
component will malfunction.
4.
Position extensible link manifold (5) on three
check valves (6) on left side of actuator manifold
(7). Seat manifold on valves.
NOTE
Caps must be installed on check
valves not in use.
5.
Install two screws (4).
6.
Position extensible link (8), piston (9) to left on
manifold (5), install three screws (10).
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