Service manual

R-21HC
21
COOLING FAN MOTOR REMOVAL
POSITIVE LOCK
®
CONNECTOR (NO-CASE TYPE) REMOVAL
Figure C-2. Positive lock
®
connector
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Push the lever of positive lock
®
connector.
5. Pull down on the positive lock
®
connector.
CAUTION: WHEN CONNECTING THE POSITIVE LOCK
®
CONNECTORS TO THE TERMINALS, IN-
STALL THE POSITIVE LOCK
®
CONNECTOR
SO THAT THE LEVER FACES YOU
Terminal
Push
Pull down
1
2
Lever
Positive lock®
connector
ANTENNA MOTOR REMOVAL
1. Disconnect the power supply cord.
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
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Lift up the oven lamp socket from air intake duct.
5. Pull the wire leads from the oven lamp socket by pushing
the terminal hole of the oven lamp socket with the small
flat type screw driver.
6. Now, the oven lamp socket is free.
OVEN LAMP AND LAMP SOCKET REMOVAL
Figure C-1. Oven lamp socket
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.
REMOVAL
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
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. Release the tabs of the capacitor holder from fan duct.
8. Remove the fan duct from the oven.
9. Remove the fan blade from the fan motor shaft according
to the following procedure.
10.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.
11.Remove the fan blade from the shaft of the fan motor by
pulling and rotating the fan blade with your hand.
12. Now, the fan blade will be free.
CAUTION:
* Do not reuse the removed fan blade because the
hole (for shaft) may be larger than normal.
13.Remove the two (2) screws holding the fan motor to the
fan duct.
14.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.
Oven lamp
socket
Terminal
Wire lead
Terminal hole
Flate type small
screw driver