Sharp R-2S56, Service Manual

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20
R-2S56
CONTROL PANEL REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the leads from the control unit.
3. Remove the one (1) screw holding the control panel to
the front plate of the oven cavity.
4. Lift up the control panel and release if from the oven
cavity.
5. Now, the control panel assembly is free.
MAGNETRON REMOVAL
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from magnetron.
3. Remove the four (4) screws holding the magnetron to the
waveguide.
4. Remove the magnetron from waveguide.
5. Now, the magnetron is free.
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. Disconnect the wire leads from the fan motor and thermal
cut-out.
3. Tear the wire holder B holding the filament lead of the
power transformer and the H.V. wire A.
4. Remove the one (1) screw holding the chassis support
to the oven cavity front plate.
5. Push the tab at the end of the chassis support caught on
the rear cabinet of the oven cavity.
6. Remove the chassis support by pulling it.
7. Remove the magnetron referring to "MAGNETRON
REMOVAL".
8. Remove the one (1) screw holding the air guide to the
oven cavity and remove the air guide.
9. Release the snap band of the main wire harness from the
light mount plate.
10.Release the filament lead of the power transformer and
the H.V. wire A from the fan duct.
11 Release the fan motor assembly from the oven cavity.
12.Remove the one (1) screw from the thermal cut-out
angle.
13.Remove the fan blade from the fan motor shaft according
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 stator of the fan motor.
Because the rotor is easy to be 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 transform the bracket by touching with the
pliers.
2) Remove the fan blade assembly 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 become
bigger than a standard one.
14. Remove the two (2) screws holding the fan motor to the
fan duct.
15. Now, the fan motor is free.
Coil
Gap
Rotor Bracket
Stator
Groove joint pliers
Rear view
Shaft
Axis
Stator
These are the position
where should be
pinched with pliers
Rotor
Side view
INSTALLATION
1. Install the fan motor to the fan motor angle with the two
(2) screws.
2. Install the fan blade to the fan motor shaft according the
following procedure.
1) Hold the center 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 strongly when installed
because the bracket may be transformed.
• Make sure that the fan blade rotates smooth
after installed.
• Make sure that the axis of the shaft is not
slanted.
3. Install the thermal cut-out angle to the fan motor with
the one (1) screw.
4. Install the fan motor assembly to the oven cavity by
inserting the tabs of the fan duct into the holes of the
oven cavity.
5. Re-install the air guide to the oven cavity with the one
(1) screw.
6. Re-install the magnetron, together with the fan duct, to
the waveguide of the oven cavity with the four (4)
screws.