|
| |
TM 5-4930-226-12&P
Section V.
RADIO INTERFERENCE SUPPRESSION
This section is not applicable to this equipment.
Section VI.
MAINTENANCE OF NOZZLE ASSEMBLY
4-10. General
This section provides information on maintain.
ing the nozzle assembly. The nozzle assembly may
be disassembled as three separate subassemblies;
the coupling end. the handle and valve and the latch
subassemblies. Each may be repaired without disas-
sembly of the other. The ground cable is also cov-
ered in this section. Disassembly and reassembly
must be in proper sequence.
4-11. Coupling End Assembly
a. Disassembly.
(1) Latch handle in no-flow (down) position.
(2) Release dust plug (1, fig. 4-2) by pulling
back on actuating ring (7) and remove pull ring (2).
(3) Remove wiper seal (3).
(4) Trip the latching mechanism by depress-
ing stayback rods (12). Failure to do so will result in
damage to the rods.
(5) Use dog wrench (fig. 4-1) to remove body
(4, fig. 4.2) from housing (45). Maintain pressure to
prevent force of actuating spring(s) from causing a
sudden separation of parts when the threads of the
body are disengaged from the housing threads.
(6) Remove actuating spring (5) and ring (6)
from inside of body (4).
(7) Remove actuating ring (7), stayback
spring (8), stayback ring (9) and stayback dogs (10)
from body (4). Release of the compression force on
the stayback spring will release the stayback dogs.
Exercise care to prevent loss of the stayback dogs.
(8) Remove dog ring (11), stayback rods (12),
packing (13) from body (4). Remove packing (14)
from housing (45).
b. Repair. Repair is limited to replacement of
unserviceable components discovered during disas-
sembly. Preformed packing tends to swell after ex-
posure to fuel; therefore, it is recommended that
new packing be installed when the nozzle is disas-
sembled.
c. Reassembly.
(1) Replace packing (14, fig. 4-2) in housing
(45) and packing (13) in body (4).
(2) Install dog ring (11) and stayback rods
(12) in body with three blank slots between each
rod. Shoulder of rods will rest on dog ring.
(3) Install stayback ring (9) and stayback
spring (8) on body (4).
(4) Compress the stayback spring slightly and
insert stayback dogs (10) in slots of the body and
under stayback ring.
(5) Place assembled parts on a flat surface
with the dogs down. Slide actuating ring (7) over
the assembled parts. Complete assembly maintain-
ing slight compression force on stayback spring (8)
until body (4) is screwed into housing (45) using dog
wrench (fig. 4-1 ).
4-5
|
