4.28 CHECK VALVE ASSEMBLY MAINTENANCE (MODELS WSDS40K & 40KWSDS)
This task consists of:
Tool Kit, General Mechanics, Automotive (Appendix B, Sec. Ill, item 1)
Vice (Appendix B, Sec. Ill, Item 2)
Pipe Wrench (from Accessory Kit)
Detergent, General Purpose (Item 1, Appendix D)
Rag, Wiping (Item 2, Appendix D)
Tape, Anti-seize (Item 3, Appendix D)
Gasket, Coupling - MS27030-6
a. Removal. Disconnect check valve from water system (refer to para 2.10 to disconnect couplings).
Using pipe wrench, unscrew coupling half (3) from body (7).
Remove gasket (4) from coupling half (3).
Using pipe wrench, unscrew coupling half (8) from body (7).
Using pipe wrench, remove cap (1).
Remove plug (5).
Pull pin (6) from body (7).
Remove lever (10) and attached parts from body (7).
Remove retaining ring (9) and separate disc (2) from lever (10).
(1) Clean all components with clean water and detergent.
(2) Rinse components in clean water and dry with wiping rag.