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TM 10-4930-250-13&P
11
10
40
5
\
7
9
6
8
Oil
3
2
4
Figure 4-2. Two Inch Valved Unisex Coupling
(3) Pull unisex coupling (3) from inlet (5).
(4) Remove and discard outside 0-ring (6) from inlet (5).
(5) Remove and discard nylon seal (7) and inside 0-ring (8) from inlet (5).
(6) Remove and retain eight springs (9).
b.
Installation.
Rubber gloves should be worn when handling fueling system components due to the toxic effects of
some fuel additives.
NOTE
When inserting balls in unisex coupling ball race, use caution to avoid dropping loose balls. Work
over a wiping rag.
(1) Lightly lubricate outside 0-ring (6) with petrolatum and install in second (square) groove (10) of inlet (5).
(2) Lightly lubricate inside 0-ring (8) with petrolatum and install inside inlet (5).
(3) Placesprings (9) in inlet (5).
(4) Install nylon seal (7) over inside 0-ring (8) in inlet (5).
4-9
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