TM 55-1520-240-23-6
7-103.2
INSTALL LOWER CONTROLS ACTUATOR STRUCTURAL MANIFOLD CHECK VALVE
ASSEMBLY (Continued)
7-103.2
WARNING
Hydraulic fluid (E199) is toxic. It can
irritate skin and cause burns. Avoid
inhaling. Use only with adequate
ventilation. Avoid contact with skin,
eyes, or clothing. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
3.
Put on gloves (E184.1). Clean the outside of
check valve (1). Use a cloth or wet with hydraulic
fluid (E199).
4.
Lubricate new packing (2 and 3) with hydraulic
fluid (E199). Install packings in the check valve
(1) grooves.
5.
Thread check valve (1) into manifold cavity (4)
until it bottoms. Once the packings engage the
cavity, it may be necessary to use 1/4 inch
socket to aid in installation.
6.
Check valve (1) is only to be installed until it is
snug against the bottom of cavity (4). Do not
torque.
INSPECT
FOLLOW-ON MAINTENANCE:
Install integrated lower control actuator (ILCA) (Task
7-102).
Bleed flight control hydraulic system (Task 7-16).
Perform operational check (TM 55-1520-240-T).
Install controls closet panel (Task 2-2).
Install controls acoustic blanket (Task 2-108).
END OF TASK
7-490.4
Change 1
