TM 10-4610-243-13
4-25. QUICK ACTING VALVE ASSEMBLY REPAlR - cont.
(7)
Install spacer (17) on stem (23).
(8)
Install handle (16) and locking nut (15) on stem (23). Tighten locking nut only enough to draw parts
together.
(9)
Set handle (16) to closed position.
(10)
Carefully slide ball (14) into body (25). Groove in ball must engage bottom of stem (23).
(11)
Install body gasket (12) and seat (13) on end fitting (11).
(12)
Install body gasket (9) and seat (10) on end fitting (8).
(13)
Position end fittings (8 and 11) on body (25).
(14)
Install eight bolts (7) and lockwashers (6). Screw nuts (5) onto bolts until hand tight.
CAUTION
Gap between end plates and body is normal. Do not attempt to close this gap by over-
tightening the nuts. Internal seats could be damaged and handle will be very difficult to
turn.
(15)
Using a cross pattern, tighten eight nuts (5) one turn.
(16)
Rotate handle (16) to open position, then back to closed position. Handle movement should be firm, but
not tight or loose.
(17)
Repeat steps (14) and (15) until force required to move handle (16) is correct.
(18)
Tighten locking nut (15) until spring washers (18 and 20) are fully compressed, then back off nut 1/4 turn.
(19)
Rotate handle (16) to open position, then back to closed position. Pressure required to move handle
should have increased, but handle should not be tight.
NOTE
Ensure that anti-seize tape is applied in the same direction as the threads.
(20)
Apply anti-seize tape to male threads of male coupling (3) and female coupling (2).
(21)
Screw female coupling (2) and male coupling (3) into valve (4).
NOTE
Ensure gasket is fully seated in groove of coupling.
(22)
Install gasket (1) in female coupling (2).
(23)
Install quick acting valve in water system (para 3-4a).
(24)
Startup water system (para 2-12c) and check valve for leaks and proper operation.
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