TM 10-4320-345-13
4-20. STORAGE ASSEMBLY MAINTENANCE.
The storage assembly consists of the components listed below Refer to the following paragraphs for applicable
maintenance procedures.
Procedure
Para.
Gate Valve Assembly (4-Inch)Repair.................................................................................................. 4-21
Suction and Discharge Hose Repair.................................................................................................... 4-17
4-21. GATE VALVE ASSEMBLY (4-INCH) REPAIR.
This task consists of:
a.
Disassembly
b.
Cleaning
c.
Inspection
d.
Repair
e.
Assembly
INITIAL SETUP :
Tools:
Tape, Anti-seize (Item 4, Appendix E)
General Mechanics Tool Kit (Item 1, App B)
Casket (2) (Item 2, App I
Equipment Condition:
Gasket (3) (Item 17, App I)
4-inch gate valve assembly removed (para 3-4a)
Lockwasher (16) (Item 16, App I)
Material/Parts:
Packing Ring (Item 21, App I)
Detergent, General Purpose (Item 1, App E)
Flange Gasket (Item 22, App I)
Wiping Rag (Item 2, App E)
Lockwasher (8) (Item 23, App I)
NOTE
Ensure that all parts identified as mandatory replacement parts are discarded and replaced with
new components.
a.
Disassembly.
Remove gate value Refer to figure 4-11
(1)
Remove eight nuts (1), lockwashers (2), flat washers (3), screws (4) and flat washers (5).
(2)
Separate male coupling (6) and gasket (7) from gate valve (16).
(3)
Remove gasket (8) from female coupling (14).
(4)
Remove eight nuts (9), lockwashers (10), flat washers (11), screws (12) and flat washers (13).
(5)
Separate female coupling (14) and gasket (15) from gate valve (16).
4-44