TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
2-53. CHECK VALVE (BACKWASH) MAINTENANCE.
This task consists of:
a. Removal
b. Installation
INITIAL SET-UP:
Tools Required
General Mechanics Tool Kit (Appendix B. Section III, Item 4)
Vice (Appendix B. Section III, Item 3)
Pipe Wrench (Appendix B. Section III, Item 3)
Materials/Parts Required
Tape, Anti-seize (Appendix C, Section II, Item 30)
Equipment Condition
Reference
ROWPU shutdown (TM 1-4610-240-10).
Power shutdown (power source manual)
ROWPU piping drained (TM 10-461-240-10).
3-Way ball valve (backwash) removed (para. 2-52).
REMOVAL
Remove check valve (1) from pipe section (2).
INSTALLATION
a. Apply antiseize tape to male pipe threads Be sure tape is wrapped in same direction as threads.
b. Install check valve (1) on pipe section (2).
c. Operate ROWPU (TM 1-461-24-10). Check for leaks and proper operation.
2-200
