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4-12. Handle and Valve Assembly
a. Disassembly.
(1) Latch handle (16, fig. 4-2) in no-flow (down) posi-
tion. Remove wiper seal (3) from body (4).
(2) Release latch (16, fig. l-l) and place handle in flow
(up) position.
(3) Remove handle mounting screws (15, fig. 4-2).
(4) Slide handle (16) upward to remove. Remove hubs
(17 and 18), washers (19) and bushings (20). Mark hubs (17
and 18) so as to ensure that they are replaced in correct
positions.
(5) Remove screws (21) from end (22) and back of hous-
ing (45). Remove end (22), reducer spring (23), gland (24),
indicator pin (25), retaining E-ring (26) and spring (27).
(6) Using a wide, thick bladed screwdriver, remove tube
(28), using piston holder (fig. 4-1) to keep cartridge assembly
(31, fig. 4-2) from rotating.
CAUTION
The sleeve (29) is under spring tension.
(7) Remove sleeve (29), valve spring (30) and packing
(13). Remove cartridge assembly (31) and packing (32). DO
NOT REMOVE BEARING (38) FROM HOUSING (45)
at this time.
(8) Check the cartridge assembly (31) for freedom of
piston movement. Visually inspect the spir-o-lock ring (31B)
for damage.
(9) Remove six capscrews (3lC) from flange on bear-
ing (38) and spir-o-lock ring (3lB).
(10) Remove spir-o-lock ring (3lB) and diaphragm seal
(31B) from against bearing (38).
(11) Remove bearing (38) from end of tube (28) and
housing (45).
b. Reassembly.
(1) Position bearing (38, fig. 4-2) over end of tube (28),
and loosely install six capscrews (31C) in fange of bearing
(38).
(2) Apply adhesive spray lightly on fuel side (only) of
diaphragm seal (31A) and position seal against bearing (38)
and spir-o-lock ring (31 B) surfaces.
TM 5-4930-226-12&P
(3) Replace packing (32) and cartridge assembly (31)
in housing (45).
(4) Replace packing (13), valve spring (30) and sleeve
(29) in housing (45).
(5) Tighten down six capscrews (31C) to secure bear-
ing (38) flange to spir-o-lock ring (3lB).
(6) Using the piston holder (fig. 4-1) to keep the cartridge
assembly from rotating and a wide, thick bladed screwdriver,
install tube (28, fig. 4-2).
(7) Replace spring (27); place gland (24) on indicator
pin (25) and secure with E-ring (26) and place in back of
housing.
(8) Install reducer spring (23) and end (22) on housing
using four screws (21).
(9) Replace bushing (20), washer (19) and hubs (17 and
18) being careful to replace in the same position as in
disassembly.
(10) Replace handle (16) and secure with handle
mounting screws (15).
4-13. Latch Assembly
a. Disassembly.
(1) Remove strainer assembly, remove latch mounting
screws (33, fig. 4-2) and latch assembly.
(2) Remove latch spring (34), latch (35) and latch release
(36) from latch bracket (37).
b. Reassembly.
(1) Assemble latch release (36, fig. 4-2), latch (35) and
latch spring (34) on latch bracket (37).
(2) Attach latch assembly to housing (45) using latch
mounting screws (33). Replace strainer assembly.
4-14. Ground Cable Assembly.
a. Repair of the ground cable assembly is restricted to
replacing the alligator clip, ground clamp, ground plug, and
cable.
b. Manufacture Cable Assy by cutting bulk cable to length,
12 inches. Place cable ends through holes in housing,
coupling, attach ball ends to cable ends by swedging shanks.
Section VII. MAINTENANCE OF THE GRAVITY FILL ADAPTER
4-15. General
adapter (8). Use proper tool to remove adapter so as not to
This section provides information on maintaining the
damage.
gravity fill adapter. Disassembly and reassembly must be in
c. Repair. Repair is limited to replacement of unserviceable
proper sequence.
components discovered during disassembly.
4-16. Gravity Fill Adapter
c. Reassembly.
a. Disassembly.
(1) Replace adapter (8, fig. 4-3) in housing (7).
(1) Remove end cap (1, fig. 4-3), seal (2) and valve
(2) Replace seal (6) on valve (5); replace spring (4) on
spring (3) from housing (7).
valve and insert valve assembly in housing (7).
(2) Remove spring (4), valve (5) and seal (6). Remove
(3) Replace valve spring (3) in housing and replace end
cap (1) and seal (2).
Change 3
4-7
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