Reversing the Lid Gasket
Reversing the lid gasket helps to prevent early failure of lid gasket and the loss of pressure during a cook cycle.
                                                        
                                                    
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Back the 4 lid liner screws (2 on each side) out about 1/2 inch (12.7 mm).
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Using a thin blade screwdriver pry out the gasket at the corners, and then pull gasket from lid.
NOTE: Check the gasket for any nicks or tears. If the gasket is damaged, it needs to be replaced.
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Clean the gasket and gasket seat with hot water and cleaning detergent. Rinse with clean hot water.
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Install the gasket with the “good” side out and tighten the 4 screws.
NOTE: Install the four corners of the lid gasket. Smooth the gasket into place, working from the corners towards the middle of each side.