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7. 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 closed properly, the oven will
not operate. When the door is
losed, the hook pushes the lock
lever downward. The lock lever
presses 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 “ OFF” condition and
presses the button of the
secondary interlock switch to bring
it under “ ON” condition.
- Adjustment
Interlock monitor switch
When the door is closed, the interlock monitor switch should be opened before other switches
are closed.
When the door is opened, the interlock monitor switch should be closed after other switches
are opened.
(3) Adjustment steps
(a) Loosen the one mounting screws.
(b) Adjust interlock switch assembly position.
(c) Make sure that lock lever moves smoothly after adjustment is completed.
(d) Tighten completely one mounting screws.
NOTE : Microwave emission test should be performed after adjusting interlock mechanism.
If the microwave emission exceed 4mW/cm
2
, readjust interlock mechanism.