TM 10-4610-239-24
TM 08580B-24/3
DISASSEMBLY. (Cont)
NOTE
Excess paint on valve rotor shaft may cause difficulty in removing top cap.
Remove paint before forcing top cap from shaft of gate valve rotor.
e.
Remove top cap (12) from shaft of gate valve rotor (9).
f.
Remove stem O-ring (14), cap O-ring (15), body O-ring (16), and top rotor washer (17). Discard O-rings.
g.
Remove rotor port (21), woodruf key (20) and bottom rotor washer (18) from valve (13).
CLEANING.
a.
Using soap solution; clean gate valve rotor, valve body, top cap, setscrew collar, handle, and
attaching hardware.
b.
Using sandpaper, clean paint from gate valve rotor shaft.
INSPECTION.
a.
Inspect gate valve rotor for excessive wear, corrosion, and other damage. Inspect shaft for
damaged threads and cracks. Replace rotor assembly as required.
b.
Inspect valve body for cracks, corrosion, and damaged threads. Replace as required.
c.
Inspect top cap for cracks, damaged threads, and broken stop pins. Replace backwash valve
assembly as required.
d.
Inspect setscrew collar and setscrew for serviceability. Replace as required.
e.
Inspect handle, bracket, and mounting hardware for breaks, cracks, damaged hreads, and general
t
serviceability. Replace items as required.
ASSEMBLY.
a.
Position new top rotor washer (17) on gate valve rotor (9) and install new body O-ring (16), new
cap O-ring (15), new stem O-ring (14), woodruf key (20) and rotor port (21).
b.
Position bottom rotor washer (18) in valve body (13).
c.
Position gate valve rotor (9) in valve body (13) and align holes with three pipe connectors.
d.
Holding gate valve rotor (9) in place, position top cap (12) and align screw holes.
e.
Install four screws (10) and washers (11).
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