TM 55-1520-240-23-6
7-98
TEST PITCH, ROLL, YAW, OR THRUST INTEGRATED LOWER CONTROL ACTUATOR
(ILCA) (AVIM) (Continued)
7-98
301.
Remove valve (85) and packing (86). Use cloths
(E135) for spilled fluid. Wear gloves (E184.1).
302.
Install adapter (87) in port (88). Remove cap
(89).
303.
Torque adapter (87) to 17 inch-pounds.
304.
Remove plug (93). Connect hose (94) to adapter
(87).
305.
Set hydraulic unit controls as follows:
a.
SOLENOID valve (53) to OPEN.
b.
SOLENOID SHUTOFF switch (44) to OPEN.
c.
Slowly turn CASE VENT LINE PRESS valve
(48) to OPEN.
306.
Slowly turn LOW PRESS REGULATOR valve
(50) toward INCREASE until relief valve (90)
cracks and fluid flows from valve. Record LOW
PRESSURE (14) when flow starts. Valve shall
relieve at 160 to 190 psi.
307.
Slowly turn LOW PRESS REGULATOR valve
(50) towards DECREASE until flow from valve
(90) stops. Record LOW PRESSURE (14) when
flow stops. Flow shall stop before pressure drops
to 150 psi.
308.
Repeat steps 305 thru 307. Compare results.
309.
Set electrical and hydraulic unit controls as
follows:
a.
Turn LOW PRESS REGULATOR valve (50)
to DECREASE.
b.
SOLENOID SHUTOFF switch (44) to CLOSE.
c.
SOLENOID valve (53) to CLOSED.
d.
CASE VENT LINE PRESS valve (48) to
CLOSE.
310.
Disconnect hose (94) from adapter (87). Install
plug (93) in hose. Use cloths (E135) for spilled
fluid. Wear gloves (E184.1).
311.
Install cap (89) on adapter (87). Remove adapter
and stow.
312.
Install valve (85) and packing (86) in port (88).
313.
Torque valve (85) to 17 inch-pounds.
Change 1
7-463
