FUEL MANIFOLD ASSEMBLY (Continued)
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
1. Lubricate new preformed packing (12), packing
retainer (13) and external thread of coupling (14) with
Petrolatum (E.20). Assemble locknut (15), packing
retainer (13) and preformed packing (12) onto coupling.
Work retainer (13) into counterbore of locknut (15).
Turn nut until packing is pushed against outer thread of
Screw coupling (16) and dump valve assembly (14)
into boss of fuel inlet adapter (17), keep locknut (15)
turning with coupling (16) until packing (12) contacts
adapter boss, easily felt by in- creased resistance to
turning. Hold locknut stationary and screw in dump
valve assembly (14) one and one-half turns. Position
dump valve (14) to correct angle of 6 degrees down
from horizontal centerline by screwing in no more than
one more complete turn.
Hold coupling and inlet adapter stationary, tighten
lock- nut (15) until metal to metal con- tact is made with
adapter boss. Torque locknut to 38 to 42 inch-pounds.
Lockwire (E.5) locknut to coupling.
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