R-8000G
36
Reinstallation
1. Reinstall the switch in its place. The door sensing switch is in the
lower position of the latch hook right. The 3rd. latch switch is in
the upper position of the latch hook right. The secondary interlock
switch is in the lower position of the latch hook left. And the
monitor switch is in the upper position of the latch hook left.
If the door sensing switch, secondary interlock switch, 3rd latch
switch and monitor switch do not operate properly due to a
misadjustment, the following adjustment should be made.
1. Disconnect the power supply cord.
2. Remove the outer case cabinet, referring to “OUTER CASE
CABINET REMOVAL”.
3. Open the oven door and block it open.
4. Discharge the high voltage capacitor.
5. Loosen each one (1) screw holding the latch hook right and the
latch hook left to the oven cavity front plate.
6. With door closed, adjust the latch hook right and the latch hook
left by moving them back and forth, and up and down. In and
out play of the door allowed by the latch hook right and the latch
hook left should be less than 0.5 mm. The vertical position of
the latch hook right and the latch hook left should be adjusted
so that the door sensing switch and the secondary interlock
switch are activated with the door closed. The horizontal
position of the latch hook right and the latch hook left should be
adjusted so that the plungers of the monitor switch and the 3rd.
latch switch are pressed with the door closed.
7. Secure the screws firmly.
8. Check all of the switches operation. If each switch has not
activated with the door closed, loosen the screws and adjust
the position of the latch hook right and the latch hook left.
After adjustment, check the following.
1. In and out play of the door remains less than 0.5 mm when in
the latched position. First check the position of the latch hook
right, pushing and pulling right portion of the door toward the
oven face. Then check the position of the latch hook left,
pushing and pulling left portion of the door toward the oven
DOOR SENSING SWITCH, SECONDARY INTERLOCK SWITCH, 3RD LATCH SWITCH AND
MONITOR SWITCH ADJUSTMENT
face. Both results (play in the door) should be less than 0.5 mm.
2. The door sensing switch and the secondary interlock switch
interrupt the circuit before the door can be opened.
3. The monitor switch contacts close when the door is opened.
4. The 3rd. latch switch interrupt the circuit when the door is
opened.
5. Reinstall the outer case cabinet and check for microwave
leakage around the door with an approved microwave survey
meter. (Refer to Microwave Measurement Procedure.)
Figure C-6. Latch Switch Adjustment
Monitor switch
Latch hook left
3rd. latch
switch
Latch
head
Secondary
interlock switch
Door
sensing switch
Latch hook right
Latch
head
Door assembly removal
1. Disconnect the power supply cord.
2. Remove the outer case cabinet, referring to “OUTER CASE
CABINET REMOVAL”.
3. Open the oven door and block it open.
4. Discharge the high voltage capacitor.
5. Close the door.
6. Remove the two (2) door springs from the door cam right, oven
hinge right, door cam left and oven hinge left.
7. Release the door cams right and left from the right and left door
cam pins of the door.
8. Remove the door cams right and left from the oven cavity front
plate.
9. Open the door assembly at an angle of more than 90˚ with the
oven cavity front plate.
10. To release the right and left door hinge pins of the door assembly
from the oven hinges right and left, slide the door assembly
leftward. When removing the door assembly, hold the door
assembly to prevent it from falling.
11. Now, the door assembly is free.
DOOR REPLACEMENT AND ADJUSTMENT
NOTE: When the individual parts are replaced, refer to “Door
Disassembly”
Door assembly reinstallation
1. On reinstalling the door assembly, insert the oven hinges right
and left into the right and left door hinge pins.
2. Insert and hook the door cams right and left to the right and left
door cam pins.
3. Reinstall the two (2) door springs between the door cams and
the oven hinges right and left.
NOTE: After any service to the door;
(A) Make sure that the door sensing switch, the secondary
interlock switch, the 3rd. latch switch and the monitor
switch are operating properly. (Refer to chapter “Test
Procedure”.)
(B) An approved microwave survey meter should be used to
assure compliance with proper microwave radiation
emission limitation standards.
2. Hold the latch hook (right or left) to the oven cavity front plate
with the one (1) screw.
3. Reconnect the wire leads to the switch.
4. Make sure that the monitor switch is operating properly and
check continuity of the monitor circuit. Refer to chapter “Test
Procedure” and “Adjustment procedure.
