Read Sharp R-464 (serv.man4) Service Manual online
R-464(SL)
19
2. Re-install the magnetron to waveguide flange with the
four (4) screws.
3. Re-install the oven cavity assembly to the base plate.
Refer to "OVEN CAVITY ASSEMBLY REMOVAL".
4. Reconnect the wire leads to the magnetron and thermal
cut-out (MG). Refer to "PICTORIAL DIAGRAM".
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the outer case.
3. Remove the oven cavity assembly from the base plate.
1. CARRY OUT 3D CHECKS.
2. Remove the outer case.
3. Remove the oven cavity assembly from the base plate.
Refer to "OVEN CAVITY ASSEMBLY REMOVAL".
4. Disconnect the wire leads from the fan motor.
5. Release the main wire harness and the switch harness
5. Release the main wire harness and the switch harness
from the holes of the fan duct.
6. Remove each one (1) screw holding the separate
angles A, B and C to the base plate. And remove them
from base plate.
from base plate.
7. Remove two (2) screws holding the fan duct to the
base plate. And remove it from the base plate.
8. Remove the fan blade from the fan motor shaft according
to the following procedure.
9. 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.
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.
because the coil may be cut or injured.
*
Do not disfigure the bracket by touching with the
pliers.
pliers.
10.Remove the fan blade from the shaft of the fan motor
by pulling and rotating the fan blade with your hand.
11. Now, the fan blade will be free.
CAUTION:
*
CAUTION:
*
Do not reuse the removed fan blade because the
hole (for shaft) may be larger than normal.
hole (for shaft) may be larger than normal.
12.Remove the two (2) screws holding the fan motor to the
fan duct.
13.Now, the fan motor is free.
5. Re-install outer case and check that the oven is
operating properly.
CAUTION: WHEN REPLACING MAGNETRON, BE
SURE THE R.F. GASKET IS IN PLACE AND
MOUNTING SCREWS ARE TIGHTENED
SECURELY.
MOUNTING SCREWS ARE TIGHTENED
SECURELY.
1. CARRY OUT 3D CHECKS.
2. Remove the outer case.
3. Disconnect the wire leads from the oven lamp.
4. Remove the one (1) screw holding the oven lamp to the
2. Remove the outer case.
3. Disconnect the wire leads from the oven lamp.
4. Remove the one (1) screw holding the oven lamp to the
OVEN LAMP REMOVAL
lamp angle.
5. Remove the oven lamp from the lamp angle.
6. Now, the oven lamp is free.
6. Now, the oven lamp is free.
FAN MOTOR REMOVAL
14.Another fan motor can be removed in a same way.
INSTALLATION
1. Install the fan motor to the fan duct with the two (2)
1. Install the fan motor to the fan duct with the two (2)
screws.
2. Install the fan blade to the fan motor shaft according to
the following procedure.
3. Hold the center of the bracket which supports the shaft
of the fan motor on the flat table.
4. Apply the screw lock tight into the hole (for shaft) of the
fan blade.
5. 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.
hammer or rubber mallet.
CAUTION:
*
*
Do not hit the fan blade strongly when installed
because the bracket may be disfigured.
because the bracket may be disfigured.
*
Make sure that the fan blade rotates smooth after
installation.
installation.
*
Make sure that the axis of the shaft is not slanted.
6. Catch two holes of fan duct on two tabs of the base
plate.
7. Hold the fan duct assembly to the base plate with the
two (2) screws.
8. Re-install the separete angles A, B and C to the base
plate with each one (1) screw.
9. Insert the main wire harness and switch harness into
the holes and switch harness of the fan duct.
10.Connect the wire leads to the fan motor. Referre to
"PICTORIAL DIAGRAM".
11.Re-install the oven cavity assembly to the base plate.
Refere to "OVEN CAVITY ASSEMBLY REMOVAL".
12.Reconnect all wire leads removed from components.
Referre to "PICTORIAL DIAGRAM".
Gap
Rotor
Bracket
Stator
Groove joint pliers
Coil
Shaft
Axis
Stator
Rotor
These are the positions
that should be pinched
with pliers.
that should be pinched
with pliers.
Shaft
Table
Center of
bracket
bracket
Rear View
Side View
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