R-23AM. Revised (including ) - Sharp Home Appliance Service Manual (repair manual). Page 27

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allowed by the latch hook should be less than 0.5mm. The
vertical position of the latch hook should be placed where the
stop switch and interlock switches have activated with the
door closed.
The horizontal position of the latch hook should be placed
where the monitor switches have activated with the door
closed.
3. Secure the screws with washers firmly.
4. Make sure of the interlock switches, stop switch, and monitor
switches operation. If those switches have not activated with
the door closed, loose two (2) screws holding latch hook and
adjust the latch hook position.
After adjustment, make sure of the following:
1. In and out play of door remains less than 0.5mm when in the
latched position.
2. The stop switch and interlock switches interrupt the circuit
before the door open when the door release lever is pulled,
and then and monitor switch close the circuit when the door
is opened.
3. Re-install outer case and check for microwave leakage
around the door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Figure C-5 Latch Switch Adjustments
DOOR REPLACEMENT AND ADJUSTMENT
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the two (2) screws holding each of the upper and
lower oven hinges to the oven cavity.
3. Remove door assembly with upper and lower oven hinges by
pulling it forward.
4. Release upper and lower oven hinges from door assembly.
5. Now, door assembly is free.
NOTE: When individual parts are replaced, refer to "Door
Disassembly".
RE-INSTALL
1. Insert the upper and lower oven hinges into door hinge pins.
2. Insert the upper and lower oven hinges with door assembly
into rectangular holes of oven cavity front plate.
3. Make sure that the door is parallel with oven face lines (left
and upper side line) and door latch heads pass through the
latch holes correctly.
4. Fasten upper and lower oven hinges firmly to oven cavity with
two (2) screws on each hinge.
Note: After any service to the door;
(A) Make sure that interlock switches, stop switch and
monitor switches are operating properly. (Refer to
chapter "Test Procedures".).
(B) An approved microwave survey meter should be used
to assure compliance with proper microwave radiation
emission limitation standards.
DOOR ADJUSTMENT
When removing and/or loosening hinges such as in door re-
placement, the following adjustment criteria are taken. Door
adjustment is performed with the door properly installed and
closed and while the oven hinges are loose.
1. Loosen upper and lower oven hinges with phillips head screw
driver.
2. Adjust the door by moving it vertically so that the top right
hand corner of the door is in line with the top of the control
panel frame assembly.
3. Tighten the upper and lower oven hinge screws.
After adjustment, make sure of the following:
1. Door latch heads smoothly catch the latch hook through the
latch holes, and the latch head goes through the center of the
latch hole.
2. Deviation of the door alignment from horizontal line of cavity
face plate is to be less than 1.0mm.
3. The door is positioned with its face depressed toward the
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.)
Note:
The door on a microwave oven is designed to act as an
electronic seal preventing the leakage of microwave
energy from oven cavity during cook cycle. This function
does not require that door be air-tight, moisture (con-
densation)-tight or light-tight. Therefore, occasional
appearance of moisture, light or sensing of gentle warm
air movement around oven door is not abnormal and do
not of themselves, indicate a leakage of microwave
energy from oven cavity. If such were the case, your
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 C-6. Door Replacement
Latch head
SW4: Monitor switch
(Oven side)
SW3: Monitor switch
Latch hook
SW1: Interlock switch
SW2: Interlock switch
(Oven side)
SW5: Stop switch
Latch head
Joint lever
Door release
lever
Head lever
OUTER CASE
CABINET 
UPPER
OVEN HINGE
LOWER
OVEN HINGE
LATCH
HEADS
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