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709 2½ ”-10”

709 2½ ”-10”. Modification Overview. Production began in 1979 and is current. Lead free (LF) version was introduced in 2010. Check Cover Removal. Cover is o-ring sealed. Loosen bolts ½”. Spring load is now released from the cover and retained by the check subassembly.

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709 2½ ”-10”

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  1. 709 2½ ”-10”

  2. Modification Overview • Production began in 1979 and is current. • Lead free (LF) version was introduced in 2010.

  3. Check Cover Removal • Cover is o-ring sealed. • Loosen bolts ½”. Spring load is now released from the cover and retained by the check subassembly. • Verify spring load is retained before removing all the bolts.

  4. Check Valve Removal • Center stem guided check assembly. • Disc & spring subassembly. • Slide subassembly straight out of seat and body.

  5. Check Seat Removal * 21/2-3” Seats removed by ¼ turn twist. • 4”-10” Seats secured by two 10” retaining wires. • Pull one wire clockwise / one wire counter clockwise. • Seats are o-ring sealed and pull straight out of body.

  6. Check Disc Replacement • Remove retaining nut for sizes 21/2”-4”. • Remove allen head screws in retainer plate for sizes 6”-10”.

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