Remove and Replace
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Disconnect the power supply to the dishwasher at the circuit breaker in the household electrical panel.
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Open the dishwasher and remove the bottom dish rack.
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Loosen the retaining nut by turning it counterclockwise with a pipe wrench. Lift the spray arm assembly off of the pump housing and out of the dishwasher.
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Remove the retaining screw from the bottom of the assembly with an appropriate-size Allen wrench.
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Pull off the split ring seal, the support assembly and the retaining nut from the spray arm.
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Insert the support assembly into the new spray arm and slide the split ring seal over it.
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Slide the retaining nut back on the assembly and reattach the retaining screw on the bottom of the assembly.
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Insert the spray arm assembly back into the pump housing and tighten the retaining nut on the housing.
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Place the dish rack back inside the dishwasher and close the door.
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Turn the circuit breaker on to restore power to the dishwasher.
