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919 ¾”-2”

919 ¾”-2”. Modification Overview. Production began in 2003 and is current. The lead free (LF) version was introduced in 2009. Check Cover Removal. Cover is threaded into body and o-ring sealed. Cover is spring loaded. Check Valve Removal. Poppet style check assembly.

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919 ¾”-2”

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  1. 919¾”-2”

  2. Modification Overview • Production began in 2003 and is current. • The lead free (LF) version was introduced in 2009.

  3. Check Cover Removal • Cover is threaded into body and o-ring sealed. • Cover is spring loaded.

  4. Check Valve Removal • Poppet style check assembly. • The poppet and spring are free once the cover is removed.

  5. Check Seat Removal • The check seat (cage) is pushed into the body and o-ring sealed. • Simply pull the seat straight out of the body.

  6. Check Disc Replacement • Remove screw and disc washer from poppet.

  7. Check Valve Reassembly Notes • Inspect and clean the guide bore on the cover. • The stem must move freely in the guide. • Reassemble in reverse order.

  8. RV Cover Removal • Cover is spring loaded. • RV cover is o-ring sealed. • While holding cover firmly, remove cover bolts and rotate the cover ¼ turn.

  9. RV Module Removal • The RV stem and spring are free once the cover is removed.

  10. RV Seat Removal • The RV seat is o-ring sealed. • Simply pull the seat straight out of the body.

  11. RV Stem Disassembly • Use a wrench to gently loosen the RV stem assembly.

  12. RV Diaphragm Replacement • Diaphragm is free once stem is disassembled. • The molded step of the diaphragm should point towards the RV stem and disc.

  13. RV Disc Replacement • The RV disc is free once the retaining screw is removed.

  14. RV Reassembly Notes • Reassemble in reverse order. • Line up the grooves on the cover with the grooves in the body, and turn the cover clockwise ¼ turn.

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