Fan Motor Replacement - Sharp R-2197 Service Manual

POSITIVE LOCK
1. CARRY OUT 3D CHECKS.
2. Push the lever of positive lock
3. Pull down on the positive lock
CAUTION: WHEN CONNECTING THE POSITIVE
®
LOCK CONNECTORS TO THE TERMI-
NALS, INSTALL THE POSITIVE LOCK
CONNECTOR SO THAT THE LEVER FACES
YOU
1. Disconnect the oven from the power supply.
2. Remove the one (1) screw holding the base plate cover
to the base plate and remove the base plate cover.
3. Disconnect the wire leads from the antenna motor and
REMOVAL
1. CARRY OUT 3D CHECKS.
2. Remove the one (1) screw holding the noise filter to the
chassis support.
3. Release the noise filter from the tab on the fan duct.
4. Disconnect the wire leads from the fan motor.
5. Remove the one (1) screw holding the capacitor holder
to the oven cavity rear plate.
6. Remove the one (1) screw holding the fan duct to the
oven cavity rear plate.
7. Remove the fan duct from the oven.
8. Remove the fan blade from the fan motor shaft accord-
ing 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.
* 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.
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.
Coil
Groove joint pliers
Stator
Gap
Bracket
Rotor
Rear view
® CONNECTOR (NO-CASE TYPE) REMOVAL
® connector.
®
connector.
®
ANTENNA MOTOR REMOVAL

FAN MOTOR REPLACEMENT

Shaft
Axis
Stator
Rotor
Side view
Positive lock®
connector
Lever
Figure C-2 Positive lock
remove the one (1) screw holding the antenna motor.
4. Remove the antenna motor shaft from the antenna
motor.
5. Now, the antenna motor is free.
CAUTION:
* Do not reuse the removed fan blade because the
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.
INSTALLATION
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. 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 hard when installing be-
cause the bracket may be disfigured.
* Make sure that the fan blade rotates smooth after
installation.
* Make sure that the axis of the shaft is not slanted.
5. Install the fan duct to the oven cavity rear plate with the
one (1) screw.
6. Install the capacitor holder to the oven cavity rear plate
with the one (1) screw.
7. Install the noise filter to the fan duct and the chassis
support with the one (1) screw.
8. Re-connect the wire leads to the fan motor.
These are the positions
that should be pinched
with pliers
Table
23
R-2197
Terminal
1
Push
2
Pull down
®
connector
Shaft
Center of
bracket