TM 10-4320-303-13
4.10.2 6 Inch Butterfly Valve Assembly Maintenance .
This task covers:
4.10.2.1
Removal
4.10.2.4
Repair
4.10.2.2
Disassembly
4.10.2.5
Assembly
4.10.2.3
Inspection
4.10.2.6
Installation
INITIAL SETUP
Tools
Materiel/Parts
Tool Kit, General Mechanic's,
Lock washers (TM 10-4320-303-23P)
Automotive, Section III, Item 1,
Preformed packing (TM 10-4320-303-23P)
Appendix B
General Safety Instructions
Equipment Conditions
Do not work on equipment without following
Pumping station shutdown, refer to
standard shop safety precautions.
applicable technical manual.
4.10.2.1 Removal.
NOTE
There are 3 versions of the 6 Inch Butterfly Valve assembly used with TWDS.
These procedures cover the 6 Inch Butterfly Valve shown. The maintenance
procedures for the others are similar.
Figure 4-3. 6 Inch Butterfly Valve Assembly Removal.
a. Remove two grooved-end pipe quick-disconnect coupling clamps (Figure 4-3, 1) securing 6 inch butterfly
valve assembly (2) to 6 inch X 20 foot hose assembly (3) and lateral grooved pipe fitting (4).
b. Remove 6 inch butterfly valve assembly (2).
4.10.2.2 Disassembly.
a. Remove two bolts (Figure 4-4, 1), lock washers (2) and remove handle assembly (3) from mounting plate
(4). Discard lock washers (2).
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