CHECK VALVE (PRODUCT WATER) MAINTENANCE.
This task consists of:
General Mechanics Tool Kit (Appendix B, Section III, Item 4)
Tape, Anti-seize (Appendix C, Section II, Item 30)
Lockwasher (6) - MS35338-138
ROWPU shutdown (TM 104610-240-10).
Power shutdown (power source manual)
ROWPU piping drained (TM 104610-240-10).
The cartridge filter, pulse dampener, and multimedia filter vent valve handles are removed the same One
is shown, the others are similar.
Tag handles and valves before removal.
Working at front of control panel (1), remove nut (5) and handle (4).
Working at rear control panel (1), loosen hose clamp (8) and remove flexible tubing (9).
Disconnect two tubes (25 and 21).
Disconnect union (16).
Remove three valves (10, 22 and 18) and attached hardware from unit.
Remove three adapters (7, 24 and 20).
Remove three elbows (6, 23, and 19) from three valves (10, 22 and 18).
Tag valves before removal.
Remove three valves (10, 22, and 18) and elbow (12) from nipples (11, 13, and 17).
Remove three nipples (11, 13, and 17) from tees (14 and 15) and elbow (12).