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ASSEMBLY - TM-55-1925-292-14-P0197
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TM-55-1925-292-14-P Firefighting Fire Alarm and Fire Suppression Systems Inland and Coastal Large TUG (LT) Manual
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FOLLOW-ON SERVICE - TM-55-1925-292-14-P0199
TM 55-1925-292-14&P
0016 00
TYPICAL GLOBE STOP CHECK VALVE REPAIR
DISASSEMBLY
1. Perform the Typical Flanged Globe Stop Check Valve Removal procedure in this work package.
2. Remove the nut (figure 7, item 1) and handwheel (figure 7, item 2) from the stem (figure 7, item 3).
3. Remove the four nuts (figure 7, item 4) and four bolts (figure 7, item 5) securing the bonnet (figure 7, item 6).
4. Remove the bonnet (figure 7, item 6), shaft (figure 7, item 3), and valve seat (figure 7, item 7) from the body
(figure 7, item 8) as an assembly.
5. Remove and discard the gasket (figure 7, item 9).
6. If the valve seat (figure 7, item 7) is damaged, pitted, or corroded, remove and discard it.
7. Remove the packing gland nut (figure 7, item 10) and silicone O-ring (figure 7, item 11) and rubber O-ring
(figure 7, item 12) from the bonnet (figure 7, item 6).
1
2
6
10
3
5
11, 12
9
7
4
8
Figure 7. Typical Globe Stop Check Valve Repair
ASSEMBLY
1. Lubricate a new rubber O-ring (figure 7, item 12) with clear water and slide it over the stem (figure 7, item 3)
and into the bonnet (figure 7, item 6).
2. Lubricate a new silicone O-ring (figure 7, item 11) with clear water and slide it over the stem (figure 7, item 3)
and into the bonnet (figure 7, item 6).
0016 00-12

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