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R-252M 19
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from the fan motor.
3. Remove the two (2) screws holding the fan motor to the
2. Disconnect the wire leads from the fan motor.
3. Remove the two (2) screws holding the fan motor to the
oven cavity back plate.
4. Remove the fan blade from the fan motor shaft accord-
ing to the following procedure.
1) Hold the edge of the rotor of the fan motor by using
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 starter of the fan
motor. Because the rotor is easy to be shaven
by pliers and metal pieces may be produced.
motor. Because the rotor is easy to be shaven
by pliers and metal pieces may be produced.
• Do not let the pliers touch the coil of the fan
motor because the coil may be cut or dam-
aged.
aged.
• Do not distort the bracket by touching with the
pliers.
2) Remove the fan blade from the shaft of the fan
motor by pulling and rotating the fan blade with your
hand.
hand.
3) Now, the fan blade will be free.
CAUTION:
• Do not use this removed fan blade again.
• Do not use this removed fan blade again.
Because the hole (for shaft) of it may be-
come bigger than a standard one.
come bigger than a standard one.
5. Now, the fan motor is free.
INSTALLATION
1.
Install the fan blade to the fan motor shaft according
to the following procedure.
to the following procedure.
1)
Hold the centre of the bracket which supports the
shaft of the fan motor on a flat table.
shaft of the fan motor on a flat table.
2)
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.
pushing the fan blade with a small, light weight, ball
peen hammer or rubber mallet.
CAUTION:
• Do not hit the fan blade when installing be-
• Do not hit the fan blade when installing be-
cause the bracket may be deformed.
• Make sure that the fan blade rotates smoothly
after installation.
• Make sure that the axis of the shaft is not
slanted.
2.
Install the fan motor to the oven cavity back plate with
the two (2) screws.
the two (2) screws.
FAN MOTOR REPLACEMENT
1. Disconnect the oven from the power supply.
2. Remove the turntable motor cover by snipping off the
2. Remove the turntable motor cover by snipping off the
material in four corners.
3. Where the corners have been snipped off bent corner
areas flat. No sharp edge must be evident after re-
moval of turntable motor cover.
moval of turntable motor cover.
4. Disconnect the wire leads from the turntable motor and
remove the one (1) screw holding the turntable motor.
5. Turntable motor is now free.
6. After replacement use the one (1) screw to fit the
6. After replacement use the one (1) screw to fit the
turntable motor cover.
TURNTABLE MOTOR REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the main wire harness and the stop switch
2. Disconnect the main wire harness and the stop switch
harness from the control panel.
3. Remove the one (1) screw holding the control panel to
the oven cavity.
4. Lift the control panel assembly and pull it forward.
Now, the control panel assembly is free.
CONTROL PANEL ASSEMBLY REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the H.V. wire B and filament lead of the
2. Disconnect the H.V. wire B and filament lead of the
transformer from the magnetron.
3. Remove the chassis support screw and the screw
holding chassis support to magnetron.
4. Move the air intake duct to left.
5. Carefully remove two (2) screws holding magnetron to
5. Carefully remove two (2) screws holding magnetron to
the waveguide, when removing the screws hold the
magnetron to prevent it from falling.
magnetron to prevent it from falling.
6. Remove the magnetron from the waveguide with care
so the magnetron antenna is not hit by any metal object
around the antenna.
around the antenna.
CAUTION: WHEN REPLACING THE MAGNETRON,
BE SURE THE R.F. GASKET IS IN PLACE
AND THE MAGNETRON MOUNTING
SCREWS ARE TIGHTENED SECURELY.
AND THE MAGNETRON MOUNTING
SCREWS ARE TIGHTENED SECURELY.
REINSTALL THE MAGNETRON TO WAVE
GUIDE FLANGE WITH THE TWO (2)
SCREWS DIAGONALLY.
GUIDE FLANGE WITH THE TWO (2)
SCREWS DIAGONALLY.
MAGNETRON REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the filament leads of high voltage trans-
2. Disconnect the filament leads of high voltage trans-
former from high voltage capacitor and the magnetron.
3. Disconnect the H.V. wire A from the high voltage
transformer.
4. Remove the four (4) screws holding the transformer to
base plate.
7. Remove the transformer.
8. Now the high voltage transformer is free.
8. Now the high voltage transformer is free.
HIGH VOLTAGE TRANSFORMER REMOVAL
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
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