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TM 10-4930-241-13
4-38. DISCHARGE HOSE ASSEMBLY (4 IN. F X 20 FT. F) REPAIR.
To repair the 4-inch X 20-foot discharge hose, refer to para. 4-13.
4-39. 6-INCH VALVE SECTION REPAIR.
To repair the 6-inch valve section, refer to para. 4-16 for flanges and para. 4-17 for gate valve.
4-40. WYE ASSEMBLY REPAIR.
This task consists of:
a. Disassembly
b.
Cleaning
c. Repair
d.
Assembly
INITIAL SET-UP:
Tools:
Material/Parts:
General Mech. Tool Kit (App B, Sect III, Item 1)
Cleaning Solvent
(Item 1, App E)
Equipment Condition:
Wiping Rag
(Item 2, App E)
Wye assembly removed (para. 2-21)
Coupling Gasket
(Item 13, App I)
Flange Gasket
(Item 30, App I)
NOTE
Ensure that all parts identified as mandatory replacement parts are discarded and replaced
with new components.
a.
Disassembly. Refer to figure 4-12.
(1)
Disconnect split ring (1), chain (2), and split ring (3) from dust plug (4) and female coupling (5).
(2)
Remove dust plug (4) from female coupling half (5).
(3)
Remove gasket (6) from female coupling half (5).
(4)
Remove twelve nuts (7), lockwashers (8), flat washers (9) and cap screws (10).
(5)
Separate female coupling half (5) and flange gasket (11) from wye (12).
(6)
Disconnect split ring (13), chain (14), and split ring (15) from dust cap (:16) and male coupling half (17).
(7)
Remove dust cap (16) from male coupling half (17).
(8)
Remove gasket (18) from dust cap (16).
(9)
Remove twelve nuts (19), lockwashers (20), flat washers (21) and cap screws (22).
(10)
Separate male coupling half(17), flange gasket (23) from wye (12).
4-42
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