R-64ST - 26
MAGNETRON REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the two (2) screw holding the chassis sup-
port to the oven cavity and the magnetron.
3. Disconnect the H.V. wire B and filament lead of the
transformer from the magnetron.
4. Release the chassis support from the oven cavity.
5. Move the air intake duct to left.
6. Carefully remove two (2) screws holding magnetron
to waveguide, when removing the screws hold the
magnetron to prevent it from falling.
7. Remove the magnetron from the waveguide with care
so the magnetron antenna is not hit by any metal
object around the antenna.
8. Remove the magnetron cushion from the magnetron.
CAUTION: WHEN REPLACING THE MAGNETRON,
BE SURE THE R.F. GASKET IS IN PLACE
AND THE MAGNETRON MOUNTING
SCREWS ARE TIGHTENED SECURELY.
FAN MOTOR REPLACEMENT
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Diconnect the wire leads from the fan motor.
3. Remove the two(2) screws holding the fan motor to
the oven cavity back plate.
4. Now the fan motor is free.
5. Remove the fan blade from the fan motor shaft
according to the following procedure.
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.
• Do not let the pliers touch the coil of the fan
motor because the coil may be cut or dam-
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.
3) Now, the fan blade will be free.
CAUTION:
• Do not use this removed fan blade again.
Because the hole (for shaft) of it may be-
come bigger than a standard one.
6. Now, the fan motor is free.
INSTALLATION
1.
Install the fan blade to the fan motor shaft according
the following procedure.
1)
Hold the centre of the bracket which supports the
shaft of the fan motor on the flat table.
2)
Apply the screw lock tight into the hole (for shaft)
of the fan blade.
3)
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 when installed 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 assembly to the oven cavity back
plate with the two (2) screws.
3. Re-connect the wire leads to the fan motor.
Rear view
Side view
Shaft
Table
Center of
bracket
Coil
Gap
Rotor
Bracket
Stator
Groove joint pliers
Figure C-1 Fan motor replacement
Shaft
Axis
Stator
Rotor
These are the position
where should be pinched
with pliers
COMPONENT REPLACEMENT AND ADJUSTMENT
R64ST_S.MANUAL
12/8/01, 11:01 am
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