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(a) Remove the top inspection <br />cover (1). <br />(b) Select the UNWRAPPED cycle and <br />START the cycle. <br />WARNING <br />The pressure relief valve <br />will be hot. Do not use bare <br />hands to pull wire ring; use a screw- <br />driver or rod. Failure to do so will re- <br />sult in burns to hands. Also, steam <br />will be vented from under the rear of <br />the sterilizer. To keep from being <br />burned, place a steam barrier (a rolled <br />up towel around the bottom of the <br />sterilizer. <br />M <br />2 <br />MA438900 <br />(c) When the "heat up" portion of the cycle is complete and the elapsed time <br />is being counted down on the display panel, pull upward on wire ring (A) <br />of pressure relief valve (2) with a screwdriver for approximately 3 sec- <br />onds; steam should discharge freely from beneath the rear of the unit. <br />NOTE <br />If the pressure relief valve does not close completely when the wire ring is re- <br />leased, pull the wire ring again and release it quickly so the valve snaps back <br />into position. Do this until the valve seats properly. <br />(d) Release the wire ring of pressure relief valve (2). The steam should vent <br />out of the pressure relief valve until the wire ring is released. When the <br />wire ring is released, the valve should seat, stopping the release of <br />steam. <br />(e) Press STOP to prevent the unit from overheating. <br />(f) If excessive force is required to open pressure relief valve (2) or pres- <br />sure relief valve will not reseat properly, the pressure relief valve must be <br />replaced (See Calling For Service later in this manual). <br />(g) Install top inspection cover (1). <br />