TM 10-4320-345-13
4-30. PUMPING STATION MAINTENANCE.
The pumping station consists of the components listed below. Refer to the following paragraphs for applicable
maintenance procedures.
Procedure
Para.
Discharge Hose Assembly Repair........................................................... 4-17
Butterfly Valve Repair ............................................................................. 4-31
4-31. BUTTERFLY VALVE REPAIR.
This task consist of:
a.
Disassembly
b.
Cleaning
c.
Inspection
d.
Repair
e.
Assembly
INITIAL SETUP:
Tools:
Material/Parts:
General Mechanics Tool Kit (Item 1, App B)
Detergent, General Purpose (Item 1, App E)
Equipment Condition:
Wiping Rag (Item 2, App E)
Butterfly valve removed (para 3-6a)
Lubricant (Item 3, App E)
Coupling Gasket (Item 3, App I)
Packing (Item 9, App I)
a.
Disassembly. Refer to figure 4-25.
(1) Remove two nuts (1) and bolts (2).
(2) Separate upper housing (3) from barrel assembly (7).
(3) Remove packing (4) from drive shaft (9).
(4) Separate lower housing (5) from barrel assembly (7).
(5) Remove packing (6) from shaft (8).
b.
Cleaning.
(1) Wash all components with clean water and detergent.
(2) Rinse components in clean water and dry with wiping rag.
c.
Inspection.
(1) Inspect upper housing (3) for cracks, corrosion, and stuck or binding handwheel.
(2) Inspect lower housing (5) for cracks and corrosion.
(3) Inspect barrel assembly (7) body for cracks and corrosion.
4-74
