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TM 10-4930-240-13
4-22. VALVE SECTION 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)
Pipe Wrench (2 ea) (App B, Sect III, Item 5)
Wiping Rag
(Item 2, App E)
Vise (App B, Sect III, Item 2)
Thread Sealant
(Item 4, App E)
Equipment Condition:
Coupling Gasket (2) (Item 22, App J)
Valve section assembly removed (para 2-20)
NOTE
Ensure that all parts identified as mandatory replacement parts are discarded
and replaced with new components.
a.
Disassembly. Refer to figure 4-15.
(1) Disconnect split rings (1 and 2) and remove chain (3).
(2) Disconnect dust cap (5) from male coupling half (6).
(3) Remove gasket (4) from dust cap (5).
(4) Disconnect split rings (7 and 8) and remove chain (9).
(5) Disconnect dust plug (10) from female coupling half (12).
(6) Remove gasket (11) from female coupling half(12).
(7) Place gate valve (13) in vise.
(8) Remove male coupling half (6) and female coupling half (12) from gate valve (13).
b. Cleaning.
WARNING
Dry cleaning solvent, P-D-680, Type III, is potentially dangerous to
personnel and equipment. Eye and skin protection is required. Avoid
repeated and prolonged skin contact. Wash hands immediately after
exposure. Do not use near open flame or excessive heat. Use only in areas
with good ventilation.
Using wiping rags and cleaning solvent, remove dirt and contaminants from all components.
4-43
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