TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
2-52. 3-WAY BALL VALVE (BACKWASH) MAINTENANCE -continued.
REPAIR
a Disassembly
NOTE
Mark location of collar on rotor shaft before removal.
(1) Loosen two setscrews (38) and remove collar (39).
NOTE
Mark location of cap on body before removal.
(2) Remove four screws (37), lockwashers (36), and cap (35).
(3) Remove three o-rings (34, 33, and 32) and washer (31) from rotor shaft (30).
(4) Pull rotor shaft (30) from body (26).
(5) Separate rotor shaft (30) from port (28) and remove key (29).
(6) Remove washer (27) from body (26).
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 all threaded components for damaged threads.
(2) Inspect rotor shaft (30) and port (28) for deep scratches and corrosion.
(3) Inspect body (26) for cracks and corrosion.
d.
Repair.
(1) Replace damaged components.
(2) Replace all wrings.
e.
Assembly.
(1) Install washer (27) in body (26).
(2) Install key (29) and rotor shaft (30) in port (28).
(3) Install rotor shaft (30) and port (28) in body (26).
(4) Install washer (31) and three o-rings (32, 33, and 34) on rotor shaft (30).
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