R-7280
R-l 720
UPPER/LOWER LATCH SWITCHES, MONITOR SWITCH AND
STOP SWITCH ADJUSTMENT
If the Upper and Lower latch switches, monitor and stop
switch do not operate properly due to a mis-adjustment,
the following adjustment should be made.
1. Loosen the two (2) screws holding the latch hook to the
oven cavity front flange.
2. With the door closed, adjust the latch hook by moving
it back and fon,vard, or up and down. In and out play
of the door allowed by the latch hook should be less
than 0.5 mm.
Vertical adjustment of the latch hook is
not possible.
3. Secure the screws firmly.
4. Now, make sure of the latch switch operation. If the latch
switch has not activated with the door closed, loose the
two (2) screws holding the latch hook to the oven cavity
front flange and adjust the latch hook position.
After the adjustment, make sure of the following points:
1. The in and out play of the door remains less than 0.5 mm
at latched position.
2. The Upper and Lower latch switches interupt the circuit
before the door can be opened.
3. The monitor switch contacts close when the door is
opened.
4. Re-install the outer case and check for microwave leakage
around the door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
~ MONITOR
SWITCH
UPPER
’ LATCH
SWiTCH
LOWER
LATCH
SWITCH
STOP
SWITCH
SWITCH
LEVER
OPEN
BUTTON
Latch Switches Adjustment
LATCH HEAD REMOVAL DOOR DISASSEMBLY
Remove the door assembly, refer to items 1 through 5 of
“Door Replacement”.
Replacement of latch head are as follows:
1. Place the door assembly on a soft cloth with latches facing
up.
3. Lift up the choke cover.
4. Now the choke cover is free from the door panel.
5. Remove the latch spring from the door panel.
6. Pushing up the latch head, it is now free from door panel.
2. Insert an iron plate (thickness of about 0.5mm) to the gap
between the choke cover and the corner portion of door
panel as shown figure to free the engagind parts.
-
k-
n
FLAT TYPE
SCREW.DRIVER
__
w
et-
PROTECT BY TAPE
Latch Head Removal and Door Disassembly
23
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