TM 5-4220-233-14
(2) Disconnect tubes on high pressure manifold (6) from elbows (7) on all eight 1/4-tum ball valves (3),
and adaptors (8) at top of recharge valve (9) and manifold valve (10) and bag.
(3) Loosen, but do not remove, screws (11), and nuts (12) on four clamps (13) securing high pressure
manifold to control panel (14).
(4) Remove handle (15) from front of 1/4-turn ball valve(3) by loosening set screw (16).
(5) Remove retaining nut (17) from 1/4-turn ball valve(3 ).
(6) Pull back on manifold tube (6) enough to allow 1/4-turn ball valve(3) to be removed from back of
control panel (14).
(7) Note position of elbows (2 and 7) on 1/4-turn ball valve(3).
(8) Remove two elbows (2 and 7) from 1/4-turn ball valve(3) and bag.
b.
Cleaning of 1/4-Turn Ball Valve and Removed Components. Refer to Section VII to clean two elbows
tube assembly and replacement 1/4-turn ball valve as required.
c.
Installation.
(1) Apply anti-seizing tape (Item 16, Appendix D) to male pipe threads on two elbows (2 and 7)
(2) Install elbows (2 and 7) onto 1/4-tum ball valve(3), as previously noted.
(3) Remove retaining nut (15) and handle (16) from 1/4-turn ball valve(3) if required.
(4) Insert 1/4-turn ball valve(3) through back of control panel (14) and temporarily secure by installing
retaining nut (17) hand tight.
(5) Connect, but do not tighten, tubes from high pressure manifold (6) to elbows (7) on all eight 1/4-turn
ball valves (3) and adaptors (8) on recharge valve (9) and manifold valve (10).
(6) Tighten screws (11) and nuts (12) on four clamps (13) to secure high pressure manifold (6) to control
panel (14)
(7) Connect tube assembly (1) to elbow (2) on 1/4-turn ball valve(3) and to elbow (4) on pressure gauge
tee fitting (5).
(8) Tighten all ten high pressure manifold tube connections.
(9) Tighten retaining nut (17)
(10) Attach handle (15) to 1/4-turn ball valve(3) with retaining screw (16)
(11) Perform a leak check on all connections loosened during this task as prescribed in paragraph 4-20
4-29
