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Service and Repair Repairing the Check Valve Lock -down Screw and Seals <br />'--- Protective cover <br />O-ring �_ Adjustment screw <br />a <br />Lockdown screw J--1/4Screwsw/ <br />lockwashers <br />#8 Screw o �-- Pressurstat body <br />Wiper seal <br />�---- Spring <br />Wiper housing --- Plunger <br />O-ring � � f,; _ <br />Diaphragm <br />IS <br />Vent line disconnected <br />and rotated out of the way � <br />Figure 24. Pressurstat and Check Valve Lock -Down Screw Assembly <br />e <br />33 <br />r <br />13 <br />rj/051-301-24.eps <br />H <br />0 <br />4 <br />