Sharp R-1482, R-1480 Temperature Fuse Magnetron Removal, Cooling Fan Motor Removal, Rear View

Models: R-1481 R-1482 R-1480

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TEMPERATURE FUSE (MAGNETRON) REMOVAL

3.Discharge high voltage capacitor.

4.Remove two (2) unit mounting screws.

5.Remove the hood duct. (Refer to the procedure of "

HOOD FAN MOTOR, HOOD DUCT AND OVEN LAMP SOCKET REMOVAL".

6.Straighten the tab holding the thermal cut-out to the top plate of the oven cavity.

7 . Release the thermal cut-out (cavity) from the one slit of the oven cavity top plate.

8.Disconnect the wire leads from the thermal cut-out (cavity).

9.Now, the thermal cut-out (cavity) is free.

R-1480

R-1481

R-1482

NOTE: When the tab is broken or turned off, use the another tab which is fixed near the slit when the new thermal cut-out is replaced.

Top of Oven Cavity

COOLING FAN MOTOR REMOVAL Tab

Thermal

Cut-Out

Waveguide

Slit

Thermal

Cut-Out

(Cavity)

Thermal

Cut-Out

Tab

TEMPERATURE FUSE (MAGNETRON) REMOVAL

1.Disconnect the power supply cord and remove the oven from wall and remove outer case. (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal")

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Remove the hood fan motor and the hood duct from the oven cavity, referring to the procedure of " HOOD FAN

MOTOR, HOOD DUCT AND OVEN LAMP SOCKET REMOVAL".

5.Disconnect the wire leads from the temperature fuse (Magnetron).

6.Remove the one (1) screw holding the temperature fuse (Magnetron) to the oven cavity.

7.Now, the temperature fuse (Magnetron) is free.

COOLING FAN MOTOR REMOVAL

1.Disconnect the power supply cord, remove the oven from wall and remove outer case (Refer to procedure of "Removal of Oven from Wall" and "Outer case Removal".)

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect the wire leads from the fan motor and the chassis support.

5.Remove one (1) screw holding the hood duct to oven cavity.

6.Release the wire leads from the hole of the hood duct.

7.Lift up the fan motor side of the hood duct.

8.Remove the two (2) screws holding the fan motor to the hood duct.

9.Remove the fan blade from the fan motor shaft according the following procedure.

10.Hold the edge of the rotor of the fan motor by using a pair of groove joint pliers.

CAUTION:

*Make sure that any pieces do not 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.

11.Remove the fan blade from the shaft of the fan motor by pulling and rotating the fan blade with your hand.

12.Now, the fan blade will be free.

CAUTION:

* Do not reuse the removed fan blade because the hole (for shaft) may be larger than normal.

13.Now, the fan motor is free.

Rear View

Coil

Groove joint pliers

Stator

 

Gap

 

Bracket Rotor

Side View

 

Shaft

These are the positions

Axis

that should be pinched

Stator

with pliers

 

Rotor

 

INSTALLATION

 

1.Install the fan blade to the fan motor shaft according to the following procedure.

2.Hold the center of the bracket which supports the shaft of the fan motor on the flat table.

3.Apply the screw lock tight into the hole (for shaft) of the fan blade.

4.Install the fan blade to the shaft of fan motor by pushing the fan blade with a small, light weight, ball peen hammer or rubber mallet.

5.Install the fan motor to the hood duct with the two (2) screws.

CAUTION:

* Do not hit the fan blade strongly when installing because the bracket may be disfigured.

* Make sure that the fan blade rotates smooth after installation.

* Make sure that the axis of the shaft is not slanted.

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Sharp R-1482, R-1480, R-1481 service manual Temperature Fuse Magnetron Removal, Cooling Fan Motor Removal, Rear View