709 2½ ”-10”.

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Presentation transcript:

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. Verify spring load is retained before removing all the bolts.

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

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.

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