TM 55-1520-240-23-8
10-95
REMOVE DUAL CHECK VALVE FITTING
(Continued)
10-95
Do not allow dual check valve
breakaway fitting (1) to turn within its
mounting when disconnecting fuel
and pressure lines. Otherwise, valve
can fall and cause fuel blockage.
NOTE
Procedure is same to remove No. 1 or
No. 2 system dual check valve fittings.
No. 2 system fitting is shown here.
1.
Hold dual check valve breakaway fitting (1) with
a strap wrench and disconnect hose (2) (inside
aft fuel tank). Remove conical seal (3) from
hose fitting. Catch spilled fluid. Use a grounded
container.
2.
Hold dual check valve breakaway fitting (1) with
a strap wrench and disconnect hoses (4 and 5).
Remove conical seals (6 and 7). Catch spilled
fuel. Use a grounded container.
3.
Hold dual check valve breakaway fitting (1) with a
strap wrench and disconnect pressure hose (8).
4.
Cap fitting (1) and plug hoses (2, 4, 5, and 8).
5.
Remove four screws (10) and washers (11) from
flange (12) of dual check valve breakaway filling
(1) and remove fitting from tank access door (13).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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