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)
Tape, insulating (Appendix C, Section II, Item 32)
ROWPU shutdown (TM 104610-240-10).
Power shutdown (power source manual)
ROWPU piping drained (TM 10-4610-240-10).
Disconnect unions (I and 3) and remove water meter (2).
Remove tube (9) and adapter (8).
Loosen clamp (10) and remove hose (11) and adapter (12) from pipe section (5).
Remove two bolts (14), two lockwashers (15), two flat washers (16), clamp (13), and insulating tape (4).
Remove pipe section (5) and check valve (7) from pipe section (6).
Place pipe section in vice.
Remove check valve (7) from pipe section (5).