R - 5 2 0 L K

R-520LW

COOLING FAN MOTOR REMOVAL

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.

CAUTION:

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

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.

CAUTION:

*Do not hit the fan blade strongly when installed 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.

5. Install the fan motor to the oven cavity back plate with the two (2) screws.

6. Connect the wire leads to the fan motor, referring to the pictorial diagram.

Rear View

Side 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.

8.Switch is now free.

At this time switch lever will be free, do not lose it.

Re-install

1.Re-install each switch in its place.The primary interlock/ monitor switches are in the lower position and the door sensing switch is in the upper position.

2.Re-connect wire leads to each switch.

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Sharp R-520LK, R-520LW service manual Cooling FAN Motor Removal, Installation, Rear View

R-520LK, R-520LW specifications

The Sharp R-520LW and R-520LK are innovative microwave ovens that combine advanced technology with user-friendly features to enhance cooking experiences. Designed with modern kitchens in mind, these models embody efficiency, precision, and versatility.

One of the defining characteristics of both the R-520LW and R-520LK is their powerful 900-watt output, which allows for speedy cooking and reheating. This high wattage ensures that food is cooked evenly and retains its moisture, preventing the common issue of dry or unevenly heated meals. Furthermore, the inclusion of multiple cooking power levels provides users with flexibility, making it easy to select the ideal setting for various types of food.

Both models feature Sharp's signature Inverter Technology. Unlike traditional microwaves that use a turn-on and turn-off cycling method, inverter technology delivers a steady stream of cooking power. This results in more consistent heating, allowing delicate foods such as fish or custards to be cooked perfectly without overcooking the edges. This technology not only enhances the quality of cooked food but also improves the overall efficiency of the microwave.

The R-520LW and R-520LK come equipped with a variety of auto-cook settings that cater to different culinary needs. From popcorn to frozen vegetables, these pre-programmed settings allow users to prepare meals with just a touch of a button, making cooking uncomplicated for all skill levels. The large, user-friendly control panel features intuitive buttons and a digital display, ensuring effortless operation and visibility.

In terms of design, the R-520LW boasts a sleek white finish, while the R-520LK offers a modern black aesthetic. Both models are compact yet spacious, with a generous interior capacity that can accommodate a range of dish sizes. The turntable feature further enhances cooking efficiency by ensuring even cooking all around.

Cleaning and maintaining the R-520LW and R-520LK is a breeze, thanks to their easy-to-wipe surfaces and the interior's cavity that can be easily accessed. The durable construction of these microwaves means they are designed to withstand the rigors of daily use.

In summary, the Sharp R-520LW and R-520LK microwave ovens stand out with their advanced features, such as inverter technology and pre-programmed cooking settings, making them excellent choices for anyone looking to streamline their kitchen tasks. Their stylish designs and user-friendly interfaces further enhance their appeal, making them valuable additions to any modern home.