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INTERLOCK MECHANISM AND ADJUSTMENT
The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave.
(1) Primary interlock switch When the door is closed, the hook locks the oven door. If the door is not is not closed properly, the oven will not operate. When the door is closed, the hook pushes the button of the microswitch. Then the button of the primary interlock switch bring it under ON condition. (2) Secondary interlock switch and interlock monitor switch When the door is closed, the hook pushes the lock lever downward. The lock lever presses the button of the interlock monitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it under ON condition. ADJUSTMENT Interlock monitor switch When the door is closeed, the interlock monitor switch should be changed(NO condition) before other switches are closed. When the door is opened, the interlock monitor switch should be changed(NC condition) after other switches are opened.
(3) Adjustment steps a) Loosen the one mounting screw. b) Adjust interlock switch assembly position. c) Make sure that lock lever moves smoothly after adjustment is completed. d) Tighten completely one mounting screw. NOTE Microwave emission test should be performed after adjusting interlock mechanism. If the microwave emission exceed 4mW.cm2, readjust interlock mechanism.
