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Component Teardown
Door Replacement And Adjustment
Removal
1. Disconnect oven from power supply and remove the
outer case. Remove turntable tray and turntable
support from oven cavity.
2. Remove three (3) screws holding lower oven hinge.
3. Remove the lower oven hinge from oven cavity
bottom flange.
4. Remove door assembly from upper oven hinge on
the oven.
5. Door assembly is now free.
When the individual parts are replaced, refer to
"Door Disassembly".
6. On re-installing door, insert the upper oven hinge into
the door hinge pin while holding door in place.
7. Make sure the door is parallel with oven face lines
(left and upper side lines) and door latch heads pass
through latch holes correctly.
8. Insert the lower oven hinge into oven cavity bottom
flange and then engaged the door hinge pin. Then
secure the lower oven hinge firmly with tree (3)
mounting screws.
After any service to the door:
(A) Make sure that door sensing switch, primary switch
and secondary switch are operating properly. (Refer
to Section 3 "Test Procedures".).
(B) An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards.
Door Adjustment
The door can be adjusted by keeping screws of each
hinge loose.
After adjustment, make sure of the following:
1. Door latch heads smoothly catch latch hook through
latch holes and that latch head goes through center
of latch hole.
2. Deviation of door alignment from horizontal line of
cavity face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity
face plate.
4. Re-install outer case and check for microwave
leakage around door with an approved microwave
survey meter. (Refer to Microwave Measurement
Procedure.)
The door on a microwave oven is designed to act
as an electronic seal preventing the leakage of
microwave energy from the oven cavity during the
cook cycle. This function does not require that the
door be airtight, moisture (condensation)-tight
or light-tight. Therefore, occasional appearance
of moisture, light or sensing of gentle warm air
movement around the oven door is not abnormal
and do not of themselves indicate a leakage of
microwave energy from the oven cavity. If such
were the case, the oven could not be equipped
with a vent, the very purpose of which is to exhaust
the vapor-laden air from the oven cavity.
Figure 4-7. Door Replacement And Adjustment
4-10
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