8. | Remove the magnetron air guide from the waveguide. | INSTALLATION | |
9. | Disconnect wire leads from the fan motor. | 1. | Install the fan motor to the fan duct with the two (2) |
10. Release the main harness from the hole of the fan duct. |
| screws and nuts. | |
11. Release the thermistor harness from the hole of the fan | 2. | Install the fan blade to the fan motor shaft according the | |
| duct. |
| following procedure. |
12. Release one (1) tab holding the fan duct to the rear | 1) | Hold the center of the bracket which supports the shaft | |
| cabinet. |
| of the fan motor on the flat table. |
13. Release one (1) tab holding the fan duct to the air guide | 2) | Apply the screw lock tight into the hole (for shaft) of the | |
| (Right). |
| fan blade. |
14.Remove the fan duct assembly from the oven. | 3) | Install the fan blade to the shaft of fan motor by pushing | |
15.Remove the fan blade from the fan motor shaft according |
| the fan blade with a small, light weight, ball peen hammer | |
| the following procedure. |
| or rubber mallet. |
1) | Hold the edge of the rotor of the fan motor by using a pair | CAUTION: | |
| of grove joint pliers. | * | Do not hit the fan blade strongly when installed |
CAUTION: |
| because the bracket may be disfigured. | |
* | Make sure that any pieces do not enter the gap | * | Make sure that the fan blade rotates smooth after |
| between the rotor and the stator of the fan motor |
| installation. |
| because the rotor is easily shaven by pliers and | * | Make sure that the axis of the shaft is not slanted. |
| metal pieces may be produced. | 3. | Reset the fan duct assembly to its place. |
* | Do not touch the pliers to the coil of the fan motor | 4. | Install the tabs of fan duct to the rear cabinet and air |
| because the coil may be cut or injured. |
| guide. |
* | Do not disfigure the bracket by touching with the | 5. | Install the magnetron air guide with the one (1) screw. |
| pliers. | 6. | Reinstall the main harness and thermistor harness to |
2) | Remove the fan blade from the shaft of the fan motor by |
| each hole of the fan duct. |
| pulling and rotating the fan blade with your hand. | 7. | Reinstall the chassis support to the control panel back |
3) Now, the fan blade will be free. |
| plate, waveguide and rear cabinet with the three (3) | |
CAUTION: |
| screws. | |
* | Do not use this removed fan blade again because the | 8. | |
| hole (for shaft) of it may become bigger than a |
| the pictorial diagram. |
| standard one. | 9. | |
16.Remove the two (2) screws and nuts holding the fan |
| (Right) with one (1) screw. | |
motor to the fan duct. |
|
| |
17.Now, the fan motor is free. |
| Shaft | |
Coil |
|
|
|
| Groove joint pliers |
|
|
| Side View | Table | Center of |
|
|
| bracket |
Rear View | Shaft |
| |
Stator |
| ||
| These are the position |
| |
|
|
| |
Gap | Axis | where should be |
|
Bracket | Rotor | pinched with pliers |
|
Stator |
| ||
|
| Rotor |
|
CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVAL
To remove the control panel, procedure as follows:
1.Disconnect oven from power supply and remove outer case.
2.Discharge high voltage capacitor.
3.Disconnect connector
4.Disconnect the wire leads from the relays RY1, RY2 and RY3.
5.Remove one (1) screw holding the control panel back plate to the chassis support.
6.Remove two (2) screws holding the bottom edge of the back plate to the cabinet base.
7.Remove one (1) screw holding the back plate to the oven cavity flange.
8.Lift up and pull the control panel assembly forward. Replacement of individual component is as follows;
CONTROL UNIT AND KEY UNIT
1.Disconnect the wire connector from the control unit.
2.Remove the four (4) screws holding the panel frame to the back plate.
3.Separate the panel frame and back plate.
4.Remove the three (3) screws holding the control unit to the panel frame.
5.Lift up the control unit and disconnect the key connector from the control unit.
6.Now, the control unit and frame assembly are separated. NOTE; 1. Before attaching a new key unit, remove remaining adhesive on the control panel frame surfaces
completely with alcohol and so on.
2.When a attaching the key unit to the control panel frame, adjust the lower edge and right edge of the key unit to the correct position of the control panel frame.
3.Stick the key unit firmly to the control panel frame by rubbing with soft cloth not to scratch.
30
