SHARP R-212B
Manual de Servicio

R-212B

FAN MOTOR REPLACEMENT
REMOVAL 1. CARRY OUT 3D CHECKS. 2. Disconnect the wire leads from the fan motor. 3. Remove the one (1) screw holding the chassis support to the oven cavity front plate. 4. Remove the chassis support . 5. Release the filament lead of the power transformer and the H.V. wire from the fan duct. 6. Remove the one (1) screw holding the fan duct to the waveguide flange. 7. Release the fan motor assembly from the oven cavity. 8. Remove the fan blade from the fan motor shaft according to the following procedure. 1) 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 easy to be 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 transform the bracket by touching with the pliers. 2) Remove the fan blade assembly from the shaft of the fan motor by pulling and rotating the fan blade with your hand. 3) Now, the fan blade will be free. CAUTION: � Do not re-use the removed fan blade because the hole (for shaft) may be lager than normal. Remove the two (2) screws holding the fan motor to the fan duct. 10. Now, the fan motor is free. INSTALLATION 1. 2. 1) 2) 3) Install the fan motor to the fan duct with the two (2) screws. Install the fan blade to the fan motor shaft according the following procedure. Hold the centre of the bracket which supports the shaft of the fan motor on the flat table. Apply the screw lock tight into the hole (for shaft) of the fan blade. 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. CAUTION: � Do not hit the fan blade strongly when installed because the bracket may be transformed. � Make sure that the fan blade rotates smooth after installed. � Make sure that the axis of the shaft is not slanted. Install the fan motor assembly to the oven cavity by fitting the holes of the fan duct into the tabs of the oven cavity. Re-install the fan duct to the waveguide flange with the one (1) screw. Insert the end of the chassis support into the slit of the oven cavity rear cabinet. Re-install the chassis support to the oven cavity front plate with the one (1) screw. Install the filament lead and the H.V. wire into the hole of the fan duct . Connect the wire leads to the fan motor, referring to the pictorial diagram.

3.

4. 5. 6. 7. 8.

9.

Rear View
Coil

Shaft

Side View
Groove joint pliers

Table
Stator Gap Bracket Rotor
Shaft Axis Stator Rotor These are the positions that should be pinched with pliers

Center of bracket

CONTROL PANEL ASSEMBLY AND SWITCH LEVER REMOVAL
1. CARRY OUT 3D CHECKS. 2. Disconnect the leads from the control unit. 3. Remove the one (1) screw holding the chassis support to the front plate of the oven cavity. 4. Remove the chassis support from the oven. 5. Lift up the control panel and release it from the oven cavity. 6. Now, the control panel assembly is free. 7. Open the door. Remove the switch lever from the front plate of the oven cavity. 8. Now, the switch lever is free.

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