Main Valve Assembly Repair. (Continued)

Main Valve Assembly Repair. (Continued) - TM-10-4320-303-13_237

Pressure-Reducing Valve Assembly Skid Assembly Repair

TM-10-4320-303-13 Tactical Water Distribution Equipment System (TDWS) Set 10-Mile Segement Model 06749-0813-81 110-00-0000 919 and 10 Manual
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TM 10-4320-303-13 NOTE If new disc is installed, a different number of spacers may be required to obtain right amount of grip on disc. d. Install valve stem (5) in disc guide (12). CAUTION When installing stem nut, tighten nut until diaphragm cannot be twisted. If nut is loose, diaphragm could pull loose and tear under pressure. When tightened, make sure disc is not compressed too much. Disc should be compressed only very slightly by disc guide. If needed, remove or insert enough spacers to obtain proper disc compression. e. Install stem nut (6). Tighten stem nut (6). f. Align holes in diaphragm (8) with studs in valve body (3). Stretch diaphragm (8) over studs in valve body (3). g. Install spring (4) over valve stem (5). CAUTION When installing cover, make sure diaphragm is lying smooth under cover. If diaphragm is not smooth, valve will not work properly. h. Align holes in cover (2) with studs in valve body (3). Carefully install cover (2) over studs on valve body (3). i. Install twelve hex nuts (1) on studs of valve body (4). 5-9

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