Sharp R-4A52 Service Manual page 27

R -4A52
R-4E52
UPPER LATCH SWITCH, LOWER LATCH SWITCH,
STOP SWITCH AND MONITOR SWITCH ADJUSTMENT
If the lower latch latch switch, stop switch, upper latch
5. Reinstall outer case and check for microwave
switch and monitor switch do not operate properly due
leakage around the door with an approved micro-
to a mis-adjustment, the following adjustment should
wave survey meter.
(Refer to Microwave Measure
be made.
ment Procedure.)
1. CARRYOUT3DCHECKS
2. Loosen the two (2) screws holding the latch hook
to the oven cavity front flange.
3. With 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 0.5 mm. The horizontal position of the
latch hook should be placed where the stop switch
and monitor switch have activated--with the door
closed.
LATCH
The vertical position of the latch hook should be
placed where the lower latch switch and upper
latch switch have activated with the door closed.
4. Secure the screws with washers firmly.
5. Make sure of the upper latch switch, stop switch,
lower latch switch and monitor switch operation. If
those switches have not activated with the door
closed, two (2) screws holding latch hook to oven
cavity front flange and adjust the latch hook posi-
tion.
After adjustment, make sure of following:
1. In and out play of door remains less than 0.5 mm
when latched position. First check latch hook posi-
tion, pushing and pulling the door toward the oven
i
face. The results (plays of the door) should be less
I
than 0.5mm.
2. The upper latch switch and lower latch switch in-
terrupt the circuit before the door can be opened.
3. The monitor switch contacts close when the door
is opened.
4. The stop switch contacts open when the door is
opened.
Figure C-5 Latch Switches Adjustment
26