Sharp R-403KK Service Manual page 29

REMOVAL
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the fan motor.
5. Remove the two (2) screws holding the fan motor to the
oven cavity back plate.
6. Remove the fan blade from the fan motor shaft according
to the following procedure.
7. Hold the edge of the rotor of the fan motor by using a pair
of groove joint pliers.
CAUTION:
* Make sure that no metal pieces enter the gap between
the rotor and the stator of the fan motor because the
rotor is easily shaven by pliers and metal pieces may
be produced.
* Do not touch the pliers to the coil of the fan motor
because the coil may be cut or injured.
* Do not disfigure the bracket by touching with the
pliers.
8. Remove the fan blade from the shaft of the fan motor by
pulling and rotating the fan blade with your hand.
9. Now, the fan blade and the fan motor will be free.
Rear View
DOOR SENSING SWITCH/PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL
1. Disconnect the power supply cord and remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads from the switches.
5. Remove two (2) screws holding latch hook to oven flange.
6. Remove latch hook assembly from oven flange.
7. Push outward on the two (2) retaining tabs holding switch
in place.
COOLING FAN MOTOR REMOVAL
CAUTION:
* Do not reuse the removed fan blade because the hole
INSTALLATION
1. Install the fan blade to the fan motor shaft according to the
2. Hold the center of the bracket which supports the shaft of
3. Apply the screw lock tight into the hole (for shaft) of the
4. Install the fan blade to the shaft of fan motor by pushing
CAUTION:
* Do not hit the fan blade strongly when installed
* Make sure that the fan blade rotates smooth after
* Make sure that the axis of the shaft is not slanted.
5. Install the fan motor to the oven cavity back plate with the
6. Connect the wire leads to the fan motor, referring to the
Side View
8. Switch is now free.
Re-install
1. Re-install each switch in its place. The primary interlock/
2. Re-connect wire leads to each switch.
27
(for shaft) may be larger than normal.
following procedure.
the fan motor on the flat table.
fan blade.
the fan blade with a small, light weight, ball peen hammer
or rubber mallet.
because the bracket may be disfigured.
installation.
two (2) screws.
pictorial diagram.
At this time switch lever will be free, do not lose it.
monitor switches are in the lower position and the door
sensing switch is in the upper position.
Refer to pictorial diagram.
R-405KS
R-403KK