TM 1-1520-238-T-7
Change 2
10–213
10–76. PRESSURE REFUELING/DEFUELING – MAINTENANCE OPERATIONAL CHECK (cont)
10–76
CCA NOZZLE
SPA NOZZLE
PRESSURE FUEL MANIFOLD
M70-080
FWD
SUMP
DRAIN
FWD FUEL
CELL VENT
AFT SUMP VENT
AFT FUEL
CELL VENT
Figure 10–83.
Pressure Fuel Manifold, Adapter Nozzles and Sump Drains
Task
Result
i. Remove cap from appropriate adapter
(fig. 10–83).
j. Connect and lock fuel nozzle onto adapter.
If fuel nozzle does not lock onto adapter, go to
paragraph 10–90.
k. Begin pressure defueling
(TM 1-1520-238-23). Check fuel truck flow
meter. Fuel flow meter indicates fuel being
drawn from helicopter. On refueling panel
(fig. 10–79), FUEL QTY indicator indicates
cells being defueled.
If FUEL QTY indicator does not indicate fuel cell
being defueled, go to paragraph 10–91.
l. When fuel truck flow meter indicates fuel is
not flowing, stop defueling. On refueling
panel, check FUEL QTY indicator. FWD and
AFT FUEL QTY indicators indicate E.
If FWD FUEL QTY indicator does not indicate E with
fuel truck unable to defuel forward fuel cell, go to
paragraph 10–92.
If AFT FUEL QTY indicator does not indicate E with
fuel truck unable to defuel forward fuel cell, go to
paragraph 10–93.
