R-351NW
11 - 4
[9] TURNTABLE MOTOR REMOVAL
1. REMOVAL
1. Disconnect the power supply cord.
2. Remove turntable and turntable support from oven cavity.
3. Lay the oven on it’s backside. Remove the turntable motor
cover by snipping off the material in four corners.
4. Where the corners have been snipped off bend corner areas
flat. No sharp edges must be evident after removal of the
turntable motor cover.
5. Disconnect wire leads from turntable motor.
(See “Positive lock connector removal”)
6. Remove one (1) screw holding turntable motor to oven
cavity.
7. Now, the turntable motor is free.
8. After replacement use the one (1) screw to
fi
t the turntable
motor cover.
[10] COOLING FAN MOTOR REMOVAL
1. 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 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 assembly from the shaft of the fan
motor by pulling and rotating the fan blade with your hand.
9. Now, the fan blade will be free.
CAUTION:
Do not re-use the removed fan blade because
the hole (for shaft) may be larger than normal.
10. Now, the fan motor is free.
2.
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
fl
at 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 assembly to the oven cavity back plate
with two (2) screws.
CAUTION:
Do not hit the fan blade strongly when installed
because the bracket may be dis
fi
gured.
Make sure that the fan blade rotates smooth after
installation.
Make sure that the axis of the shaft is not slanted.
6. Connect the wire leads to the magnetron and fan motor,
referring to the pictorial diagram.
Figure C-2a Graphic Sheet and Membrane Switch Replacement
Display window
Small backing
paper
Graphic sheet
Membrame switch
Panel sub assembly
Control panel
frame
Control unit
Large
depression
Small
depression
Liquid
crystal display
LED sheet
LCD holder
Screws
Rubber connector
Figure C-2b Ribbon Cable of Membrane Switch
Slit
Ribbon cable of membrane switch
Control panel frame
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6/26/09 6:30:56 PM
6/26/09 6:30:56 PM
