TM 55-1730-229-34
AG 320A0-MME-000
TO 35C2-3-473-2
TM 1730-34/1
valve (8).
Ensure that check valve is
MANIFOLD ASSEMBLY.
8-11.
Installed properly in accordance with
flow arrow.
a. Remove.
R e m o v e manifold assem-
b l y ( 1 9 , f i g u r e 8-10) by performing
(c) Tighten coupling nuts with
4 5 0 to 500 inch-pounds of torque.
steps a.
( 3 ) Replace 6 psi check valve (13)
a s follows:
Inspect.
b.
(a) Match mark tube assemblies
(11, 14).
(1) Inspect coupling ends of fit-
t i n g s (5, 7, 9, and 17) for scratches o r
g o u g e s . Replace if damaged.
( b ) Loosen coupling nuts on tube
a s s e m b l i e s (11, 14). Remove and discard
seals (12, 15).
( 2 ) Inspect coupling end of elbow
( 3 ) for scratches or gouges. Replace if
damaged.
(c) Install tube assemblies (11,
14) with new 7C-8 seals (12, 15) on
c h e c k v a l v e ( 1 3 ) . Align match marks and
Replace if damaged.
l e a k s or dents.
ensure that check valve is installed
p r o p e r l y in accordance with flow arrow.
(11) for broken wiring (12), dents,
(d) Tighten coupling nuts with
4 5 0 to 500 inch-pounds of torque.
c r a c k s , or leaks. Replace if damaged.
( 4 ) Replace 2 psi check valve (18)
a s follows:
(1) Replace fittings (5, 7, 9, and
1 7 ) as follows:
(a) Match mark tube assemblies
(16, 19).
(a) Remove fittings with pack-
Discard packing.
ing.
( b ) Loosen coupling nuts on tube
a s s e m b l i e s (16, 19). Remove and discard
(b) Install new fitting,
with
seals (17, 20).
n e w packing (6, 8, 10, and 18).
(c) Install tube assemblies (16,
19) with new 7C-8 seals (17, 20) on
( 2 ) Match mark elbow (3) to mani-
c h e c k valve (18). Align match marks and
f o l d ( 1 9 ) . Replace elbow (3) by loosen-
ensure t h a t c h e c k v a l v e i s i n s t a l l e d
ing nut (20) and removing elbow with
p a c k i n g (4) . Discard packing. Back off
p r o p e r l y in accordance with flow arrow.
jam nut (20) as far as it will go, in-
stall elbow (3) with new packing (4),
(d) Tighten coupling nuts with
4 5 0 to 500 inch-pounds of torque.
position elbow coupling end to match
m a r k , and tighten with jam nut (20).
Install check
d. I n s t a l l .
valves
(3) Replace r e l i e f v a l v e ( 1 ) b y
and tube assemblies back into module by
r e m o v i n g relief valve with packing (2).
performing steps z., ac. through ag.,
D i s c a r d packing.
Install new relief
v a l v e (1) with new packing (2).
8-18