Sharp R771M-006 Podręcznik - Strona 14
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COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
MONITORED LATCH SWITCH, STOP SWITCH AND MONITOR SWITCH ADJUSTMENT
If the monitored latch switch, stop switch and monitor
switch do not operate properly due to a mis-adjustment,
the following adjustment should be made.
1. CARRY OUT 3D CHECKS.
2. Loosen the two (2) screws holding the latch hook to
the oven cavity front flange.
3. 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 0.5 mm. The horizontal position of the latch
hook should be placed where the monitor switch has
activated with the door closed. The vertical position
of the latch hook should be placed where the
monitored latch switch and stop switch have activated
with the door closed.
4. Secure the screws with washers firmly.
5. Make sure of the monitored latch switch, stop switch
and monitor switch operation. If those switches have
not activated with the door closed, two (2) screw
holding latch hook to oven cavity front flange and
adjust the latch hook position.
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 position,
pushing and pulling the door toward the oven face.
The results (play of the door) should be less than
0.5mm.
2. The contacts (COM-NO) of the monitored latch switch
and stop switch interrupt the circuit before the door
can be opened.
3. The contacts (COM-NC) of the monitor switch close
when the door is opened.
4. Re-install outer case and check for microwave leakage
around the door with an approved microwave survey
meter. (Refer to Microwave Measurement Procedure.)
DOOR
LATCH
HEADS
Figure C-4 Latch Switches Adjustment
771M -
14
LATCH HOOK
MONITOR SWITCH
MONITORED
MONITORED
LATCH SWITCH
STOP SWITCH
OPEN LEVER