Whirlpool 721.663398 manual Magnetron Removal

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D. MAGNETRON REMOVAL

(1)Disconnect the wire lead from the magnetron.

(2)Carefully remove the mounting screws holding the magnetron and the waveguide.

(3)Remove the magnetron assembly until the tube is clear from the waveguide.

NOTE:

1.When removing the magnetron, make sure its dome does not hit any adjacent parts, or it may be damaged.

2.When replacing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition.

3.After replacing the magnetron, check for microwave leakage with a survey meter around the magnetron. Microwave energy must be below the limit of 5 mW/cm2 . (With a 275 ml. water load).

Make sure that gasket is rigidly attached to the magnetron. To prevent microwave leakage, tighten the mounting screws properly, making sure there is no gap between the waveguide and the magnetron.

Air duct

Magnetron

Waveguide

Dome

Waveguide

Bracket

Magnetron

Gasket

Magnetron

Figures 11

E. REMOVING THE TURNTABLE MOTOR 1) Remove the turntable and rotating ring.

2) Lay the unit down on its back.

3) Remove the turntable motor cover.

The turntable base cover is easily removed by pinching the eight parts with a wire cutting.

4) Disconnect the leadwire from the turntable motor terminals.

5) Remove the screw securing the turntable motor to the oven cavity ASSEMBLY.

6) After repairing the motor, rotate the removed turntable motor cover.

7) Fit the turntable motor cover’s projecting part to the base plate slit.

8) The taptite screw shall be used when a turntable motor cover is secured with a screw.

NOTE:

1. Remove the wire lead from the turntable motor VERY CAREFULLY.

2. Be sure to grasp the connector, not the wires, when removing.

Taptite Screw

Wire Leads

Turntable Motor

Figures 12

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Contents Division Basic Field Manual For Microwave Oven Page Foreword Adjustment Procedures Check the Door Latch and Switch ClosingAdjust the Latch and Switch Closing Test the Latch and Switch SequenceLatch Latch Board Precautions on Installation Features and SpecificationsGeneral Precautions in USE Trial OperationSpecifications Switch TableSchematic Diagram Overall Circuit Diagram Matrix Circuit for Touch KEY Board Operating Procedures A. Oven Control Panel Easy USE Table Procedure for Measuring Microwave Energy Leakage Measuring Microwave Energy LeakageMeasurement with the Outer Case Removed Equipment Measurement with a Fully Assembled Oven Power Output Measurement Record Keeping and Notification After Measurement Disassembly Instructions Important NotesDoor Assembly / Removal Magnetron Removal High Voltage Transformer Removal Removing Sensor FAN Motor Assembly / RemovalHigh Voltage Capacitor and Diode Removal Interlock System Interlock MechanismPrimary Interlock Switch Test Secondary Interlock Switch TestMonitor Switch Test Components Test Procedure ResultsTest and Checkout PROCEDURES, and Troubleshooting Test Procedures ComponentsFilament Winding Primary Terminal MagnetronCapacitor High VoltageDiode Power RelayLevel FAN MotorCheckout Procedures for Fuse Blowing Checkout ProceduresProblems Causes Checkout Procedures for Relay Problem aProblem B YES GoodPage Trouble Shooting Condition Cause RemedyCheck ConditionResult Fuse blows Cause Remedy Condition Check ResultCondition Check Result Cause Remedy Check Result Exploded View Door Parts Controller Parts Oven Cavity Parts Latch Board Parts Interior Parts Base Plate Parts Sensor Parts No MFL30502909