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TM 10-4930-246-13&P
Lockpinsmustbeinstalledwith flatsurfacesfacingoutfrombody. Installinglock
pins in the wrong direction will cause body to lock onto collar, preventing nozzle
operation.
(8)Install three each springs (15), index pins (16), and lock pins (14).
(9)Assemble plate (12) to seal (11) and secure with retaining ring (13). Install onto body (6).
(10)Aline fuel nozzle body (6) lug with nozzle collar (3) groove and insert body into nozzle collar. Turn body to
the right until body and collar engage so that bearing race alines with screw hole in nozzle collar.
NOTE
Do not use any form of grease on screw or balls.
(11)Install all 49 ball bearings (4) through screw hole in nozzle collar (5) and install screw (2).
(12)Using adapter (5), engage the collar (3) and rotate lever (7) to the open position to extend shaft (10) to its
fullest open position.
(13)Screw poppet (8) onto the shaft such that the hole in the shaft is approximately centered in the slotted area
of the poppet.
(14)Close the poppet (8) and disengage the collar (3) from the adapter (5) flange and set the nozzle on its inlet
end. If the poppet is difficult
to close, reopen the unit and loosen the poppet one half turn and repeat until
the nozzle closes. Place astraight edge across the center of the elastomer lip of the seal (11). Use feeler
gages to measure the average dimension between the bottom of the straight edge and the poppet face. This
dimension should be 0.070 to 0.110 inch (1.8 to 2.8 mm). If it is not, calculate the required poppet
dimension as follows.
NOTE
One quarter (1/4) turn of the poppet axially displaces the poppet face about 0.020 inch
(0.51 mm).
(a)If gap is too large, unscrew (loosen) the poppet (8) one quarter (1/4) turn for each 0.020 inch (0.51 mm)
of required adjustment.
(b)If gap is too small, tighten the poppet (8) one quarter (1/4) turn for each 0.020 inch (0.51 mm) of
required adjustment.
(15)
Once the proper poppet (8) adjustment is made, rotate the poppet toward the tightening direction until the
next slot in the poppet is in line with the hole in the shaft (10). Insert the cotter pin (9) and bend over the
ends to retain in place.
5-7
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