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TM 10-4320-342-24
3-17. BALL VALVE (200/600 GPM PUMP) REPAIR - continued.
(k)
Apply liberal amount of lubricant to threads of insert (4).
(l)
Place seat (6) and insert (4) in valve body (8) and screw into valve body using a spanner wrench or
manufactured tool. Tighten the insert the same number of turns noted during removal.
Refer to Figure 3-9.
(n)
Position backing stop plate (11) on stem (4) as noted during removal.
(o)
Install stop screws (10) and bolts (9).
(p)
Install washer (8), movable stop plate (7), plastic washer (6) and tee handle (5) as noted during removal.
(q)
Install handle (3), lockwasher (2) and nut (1) on stem (4).
CAUTION
Turning the handle in fast motion before the seats have a chance to form a proper
seal may cut the seats and cause the valve to leak.
NOTE
Cycling the handle slowly will allow the seats to properly seal against the ball.
(u)
Cycle the valve slowly by turning handle (3) with a gentle back and forth motion to obtain the full quarter
turn.
3-30
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