TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
2-80. DIAPHRAGM VALVE MAINTENANCE - continued.
REPAIR
a
Disassembly.
(1)
Remove four nuts (20), screws (31), tag (30), and cap (8).
(2)
Remove nut (9) from shaft (29).
(3)
Remove upper diaphragm plate (10), diaphragm (11), lower diaphragm plate (12), and spring (13) from
shaft (29).
(4)
Remove gasket (14), washer (15), and washer (16) from shaft (29).
(5)
Remove o-ring retainer (18) from body (21).
(6)
Remove shaft (29) and attached parts from body (21).
(7)
Remove o-rings (17 and 19) from o-ring retainer (18).
(8)
Remove nut (24), disk plate (25), disk (26), disk retainer (27) and flat washer (28), from shaft (29).
(9)
Remove lower seat (23).
(10)
Remove gasket seat (22) from body (21).
b.
Cleaning.
(1) Wash all components with clean water and detergent.
(2) Rinse components in clean water and dry with wiping rag.
c.
Inspection.
Inspect all parts, threaded areas, and attaching parts for damage and corrosion.
d.
Repair.
Replace damaged components. Replace packing, gaskets and diaphragm.
e.
Assembly.
(1) Install gasket seat (22) on body (21).
(2) Install seat (23) in body (21).
(3) Install flat washer (28) disk retainer (27), disk (26), disk plate (25) and nut (24) on shaft (29).
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