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 TM 55-1905-223-24-7
c.
Using scrub brush and nonchlorinated product water, clean all parts of grime or grease buildup except seawater
element (22). Rinse with nonchlorinated product water.
d. Check all other parts for signs of stripped threads, dents or buckling. Replace with new ones if damaged.
REPLACEMENT
a. Install clean or new seawater element (22) in each RO module (6).
b. Install four preformed packings (19) in end plugs (18).
c.
Install four preformed packings (20) in end plugs (18).
d. Install INBOARD END end plugs (18) on RO modules (6) and secure with six hexagon self-locking nuts (17) on
each end plug (18).
e. Carefully, lift each RO module (6) from work bench and slide each module (6) [end without end plugs (18) installed
into watermaker from INBOARD END side and position on watermaker frame securing position.
f.
Install four retaining straps (13) over RO modules (6) collars (21) and secure retaining straps (13) with eight plain
hexagon nuts (16), lockwashers (15), and machine bolts (14).
g. On other two end caps (18), install pipe nipple 12, pipe elbow (11), install pipe nipple (10), pipe elbow (9), and pipe
nipple (8). Tighten this combination of piping parts.
h. Place other end plug (18) remaining in vice and secure.
i.
Position other end plug (18) with piping attached, so as to thread pipe nipple (8) into other end plug (18) by rotating
this end plug (18) with piping attached so as to securely thread pipe nipple (8) into end plug (18). Remove from
vice.
j.
Install the two end plugs (18) on the RO modules (6) OUTBOARD END collars (21) aligning the collar (21) studs
with mounting holes in end plugs (18).
k.
Secure end plugs (18) to the RO modules (6) with twelve hexagon self-locking nuts (17).
l.
Install hose plug (7) on the OUTBOARD END of each RO module (6).
m. On lower RO module (6) INBOARD END end plug (18), install pipe nipple (28) and secure.
n. Install pipe elbow (30) on pipe nipple (28) and secure.
o. Install pipe nipple (29) on pipe elbow (30) and secure.
p. Install pipe elbow (27) on pipe nipple (29) and secure.
2-112
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