TM 1-1520-238-23
10-55
10.12.
FORWARD FUEL CELL PILOT VALVE HOSE REPLACEMENT – continued
10.12.3. Removal
CAUTION
Jet fuel will cause external surface of fuel
cell to swell, delaminate, and leak if al-
lowed to contact the fuel cell more than
72 HOURS. Keep jet fuel away from the
outside of fuel cells.
a. Remove loop clamps (1), (2), and (3).
(1) Remove nut (4) and washer (5) from screw
(6).
(2) Remove screw (6) from clamps (1), (2), and
(3).
(3) Remove clamp (3) from pilot valve hose (7).
b. Remove hose (7).
(1) Hold pilot valve nipple (8). Remove hose nut
(9) from union (8).
(2) Hold shutoff valve nipple (10). Remove hose
nut (11) from nipple (10).
10.12.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
10.12.5. Inspection
a. Inspect pilot valve union and shutoff valve
union for thread damage, cracks, and
rounded wrench flats (para 10.1).
b. Check tube clamps for breaks, cracks, or dis-
tortion (para 10.1).
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