Sharp R-84STM Service Manual page 17

COMPONENT REPLACEMENT AND ADJUSTMENT
DOOR REPLACEMENT
REMOVAL
Choke Cover
8
7
6
5
4
Figure C-5. Door Disassembly
1. CARRY OUT 3D CHECKS.
2. Push the open button and open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the
gap between the choke cover and door frame as shown
in Figure C-5 to free engaging parts.
4. Release choke cover from door panel.
5. Now choke cover is free.
6. Lift the door upwards.
7. Now, door sub assembly is free from oven cavity.
8. Remove the four (4) screws holding the door panel to the
door frame.
9. Release door panel from six (6) tabs of door frame by
sliding door panel downward.
10. Now, door panel is free.
11. Slide latch head upward and remove it from door frame
with releasing latch spring from door frame and latch
head.
12. Now, latch head and latch spring are free.
13. Remove the two (2) screws holding the glass stopper to
the door frame.
14. Remove the glass stopper from the door frame.
15. Slide the front door glass leftwards and then slide
downwards to release the tabs holding it.
16. Now, the front door glass is free
RE-INSTALL
1. Re-install the front door glass to the door frame as follows.
Insert the upper edge of the front door glass into the six
(6) tabs of the door frame.
a) Slide the front door glass downwards and insert the lower
edge of the front door glass into the six (6) tabs of the door
frame.
b) Slide the front door glass rightwards and insert the right
edge of the front door glass into the one (1) tab of the door
frame.
2. Re-install the glass stopper o the door frame as follows.
Re-install the glass stopper to the door frame so that the
two (2) holes of the glass stopper meet the two (2) pins of
the door frame.
a) Hold the glass stopper to the door frame with the two (2)
screws.
3. Re-install the latch spring to the latch head. Re-install the
latch spring to the door frame. Re-install latch head to
door frame.
4. Re-install door panel to door frame by fitting six (6) tabs
of door frame to six (6) holes of door panel.
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11
12
9
1
3
2
Putty Knife
Door Frame
5. Hold the door panel to the door frame with four (4) screws.
6. Locate door panel hinge pins into cavity hinge location
holes.
7. Re-install choke cover to door panel by clipping into
position.
Note: After any service to the door;
(A) Make sure that door sensing switch and primary
latch switch are operating properly. (Refer to chapter
"Test Procedures".).
(B) An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards. (Refer to
Microwave Measurement Procedure.)
After any service, make sure of the following :
1. Door latch heads smoothly catch latch hook through latch
holes and that latch head goes through centre of latch
hole.
2. Deviation of door alignment from horizontal line of cavity
face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity
face plate.
4. Check for microwave leakage around door with an
approved microwave survey meter. (Refer to Microwave
Measurement Procedure.)
Note: The door on a microwave oven is designed to act as
an electronic seal preventing the leakage of
microwave energy from oven cavity during cook
cycle. This function does not require that door be air-
tight, moisture (condensation)-tight or light-tight.
Therefore, occasional appearance of moisture, light
or sensing of gentle warm air movement around
oven door is not abnormal and do not of themselves,
indicate a leakage of microwave energy from oven
cavity.
Slit Choke
Figure C-6. Door Replacement
NOTE: When carrying out any repair to the door,
do not bend or warp the slit choke (tabs on
the door panel assembly) to prevent
microwave leakage.
R-84STM - 17
Upper
Oven
Pin
Hinge
Upper Oven
Hinge
Door Panel
Lower Oven
Hinge
Choke Cover
Lower
Pin
Oven
Hinge