33
R - 2 2 A T
R-23AM
R - 2 4 A T
1. Loosen the two (2) screws holding the latch hook.
2. With the door closed, adjust the latch hook by moving
it back and forward, or up and down. In and out play of
the door 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 1st, 2nd, 3rd latch
switches have activated with the door closed.
The horizontal position of the latch hook should be
placed where the monitor switch has activated with the
door closed.
3. Secure the screws with washers firmly.
4. Make sure of the 1st, 2nd, 3rd latch switches, stop
switch, and monitor switch 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 1st, 2nd, 3rd latch 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.)
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.
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 as-
sembly.
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 1st. latch switch, 2nd. latch switch,
3rd. latch switch, stop switch and monitor switch
are operating properly. (Refer to chapter "Test
Procedures".).
(B) An approved microwave survey meter should be
used to assure compliance with proper micro-
wave radiation emission limitation standards.
DOOR ADJUSTMENT
When removing and/or loosening hinges such as in door
replacement, the following adjustment criteria are taken.
Door adjustment is performed with the door properly
installed and closed and while the oven hinges are loose.
DOOR REPLACEMENT AND ADJUSTMENT
Figure C-5 Latch Switch Adjustments
OUTER CASE
CABINET
UPPER
OVEN HINGE
LOWER
OVEN HINGE
LATCH
HEADS
Figure C-6. Door Replacement
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
Latch head
SW4: Monitor switch
Latch hook
SW1: 1st. latch switch
SW2: 2nd. latch switch
SW5: Stop switch
SW3: 3rd. latch switch
Latch head
Joint lever
Door release
lever
Head lever
