Sharp R-15AM Service Manual page 26

Commercial microwave oven
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R-15AM
WARNING
Make sure that the rubber packing is not caught be-
tween the oven door and the oven cavity front plate, to
avoid possible exposure to excessive microwave en-
ergy.
REMOVAL
1. Disconnect the power supply cord.
2. Open the door and wedge the door open.
3. To discharge the high voltage capacitor, wait for 60 seconds.
4. Remove the antenna motor from the oven cavity bottom
plate, referring to "ANTENNA MOTOR REMOVAL" .
5. Remove the ceramic shelf from the oven cavity bottom plate.
6. Remove the one (1) screw and the one (1) washer holding
the antenna holder of the stirrer antenna assembly to the
oven cavity bottom plate through the square hole of the
stirrer antenna. Refer to Figure C-8.
7. Release the antenna holder from the one (1) tab of the
oven cavity bottom plate.
8. Remove the stirrer antenna assembly from the oven
cavity bottom plate.
9. Remove the antenna motor shaft from the hole of the oven
cavity bottom plate.
10. Now, the antenna motor shaft is free.
Screw
Washer
Square
hole
Figure C-8. mMotor Shaft Removal
INSTALLATION
1. Install the antenna motor shaft into the hole of the oven
cavity bottom plate, and turn the flat faces of antenna
motor shaft to the left and right side walls of oven cavity (to
fit the stirrer antenna holder). Refer to Figure C-9.
2. Set the direction of the stirrer antenna and antenna holder
so that the hole of the antenna holder fit to the centre of the
stirrer antenna's big blade. Refer to Figure C-9.
ANTENNA MOTOR SHAFT REPLACEMENT
Antenna holder
Stirrer antenna
Antenna
Tab
motor shaft
Oven cavity
bottom plate
Antenna motor
Screw
Antenna holder
Stirrer antenna
Tab
Antenna
motor shaft
Figure C-10. Stirrer Antenna Assembly Installation
Oven Cavity
Front Edge
3. Hook the hole of the antenna holder on the tab of the oven
cavity bottom plate. Refer to Figure C-10.
4. Insert the antenna holder into the hole of the oven cavity
bottom plate and fit the hole of the antenna holder with an
antenna motor shaft. Refer to Figure C-10.
5. Install the antenna holder to the oven cavity bottom plate
with the one (1) screw and the one (1) washer. Refer to
Figure C-8.
6. Install the antenna motor to the oven cavity bottom plate
with one (1) screw. Refer to Figure C-8.
7. Connect the wire leads to the antenna motor, referring to
the pictorial diagram.
8. Install the base plate cover to the base plate with one (1)
screw.
9. Install the ceramic shelf to the oven cavity bottom plate.
Refer to "INSTALLATION OF CERAMIC SHELF" .
Antenna holder
Stirrer antenna
Figure C-9. Derection of Antenna Motor Shaft and
Stirrer Antenna Assembly
Stirrer antenna assembly
Antenna holder
Antenna
motor shaft
Oven cavity bottom plate
24
Rear Edge
Push
Ceramic
Shelf
Flat face
Antenna
motor shaft
Flat face
Centre
Hole
Stirrer antenna's
big blade
Tab
Antenna
motor shaft
Oven cavity
bottom plate
Stirrer antenna
Tab

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