TM55-2840-251-23
6-6
FUEL ADAPTER AND NOZZLE ASSEMBLY (AVIM) (Continued)
6-6-4 ASSEMBLY
CAUTION
Extreme care must be exercised when
handling fuel nozzles and sheaths. Wear
clean, lint-free, disposable gloves while
handling components; fingerprints left
on orifice may produce a poor spray
pattern.
1.
If fuel nozzle has been replaced, lubricate thread of
adapter (2), nozzle assembly (5) and new keywasher (4)
with Calibrating Fluid (E.45). Install keywasher on fuel
nozzle and screw nozzle into adapter. Torque nozzle to
45 to 50 inch-pounds. Do not lock keywasher at this
stage.
2.
Perform fuel nozzle leakage test (Task 6-6-5).
3. Perform functional check (Task 6-6-5).
4. If tests prove satisfactory, lock keywasher (4). If
unsatisfactory, replace nozzle (5) then repeat steps 2
and 3.
5. Install sheath (6) on manifold adapter (7), insuring
mating hole in sheath flange engages with locating pin
on adapter.
NOTE
Insure that sheath for the No. 8 inlet fuel
nozzle adapter is not used in any other
position. The locating hole is peculiar to
No. 8 fuel nozzle adapter.
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