Door Replacement; Door Disassembly - Sharp R-22GT-F Service Manual

REMOVAL
1. Disconnect the power supply cord and then remove
outer case, referring to "OUTER CASE, REAR CABINET
AND POWER SUPPLY CORD REMOVAL".
2. Open the oven door and block it open.
3. Discharge two high voltage capacitors.
4. Remove the two (2) screws holding each of the upper
and lower oven hinges to the oven cavity.
5. Remove door assembly with upper and lower oven
hinges by pulling it forward.
6. Release upper and lower oven hinges from door
assembly.
7. Now, door assembly is free.
NOTE: When individual parts are replaced, refer to "Door
Disassembly".
RE-INSTALL
1. Insert the upper and lower oven hinges into door hinge
pins.
2. Insert the upper and lower oven hinges with door assembly
into rectangular holes of oven cavity front plate.
3. Make sure that the door is parallel with oven face lines
(left and upper side line) and door latch heads pass
through the latch holes correctly.
4. Fasten upper and lower oven hinges firmly to oven cavity
with two (2) screws on each hinge.
Note: After any service to the door;
(A) Make sure that door sensing switch, secondary
interlock switches (1), (2) and monitor switches (1),
(2) 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.
DOOR ADJUSTMENT
Door adjustment is performed with the door properly in-
stalled and closed and while the oven hinges are loose.
1. Loosen upper and lower oven hinges with phillips head
screw driver.
2. Adjust the door by moving it vertically so that the top right
hand corner of the door is in line with the top of the control
panel frame assembly.
3. Tighten the upper and lower oven hinge screws.
CHOKE COVER REMOVAL
1. Open the door and insert a putty knife (thickness of about
0.5mm) in gap between the choke cover and corner
portion of door panel to free engaging parts. Refer to Fig.
C-5.
NOTE: As the choke cover and door panel are engage at 16
places, do not force any particular part.
2. Remove the choke cover carefully. (If choke cover is
broken, replace with a new one.)

DOOR REPLACEMENT

After adjustment, make sure of the following:
1. Door latch heads smoothly catch the latch hook through
the latch holes, and the latch head goes through the
center of the latch hole.
2. Deviation of the door alignment from horizontal line of
cavity face plate is to be less than 1.0mm.
3. The door is positioned with its face depressed toward the
cavity face plate.
4. Re-install outer case and 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. If such were the case, your oven could not be
equipped with a vent, the very purpose of which is
to exhaust the vapor-laden air from the oven cavity.

DOOR DISASSEMBLY

PUTTY KNIFE
DOOR
HANDLE
35
UPPER
OVEN HINGE
LOWER
OVEN HINGE
LATCH
HEADS
Figure C-4. Door Replacement
CHOKE COVER
2
UPPER
OVEN HINGE
CHOKE COVER
1
BENT
LOWER
OVEN HINGE
LATCH HEAD
Figure C-5. Choke cover
R-22GT-F
R-22GV-F
OUTER CASE
CABINET
PUTTY KNIFE
BENT
DOOR PANEL
FRONT