24
R-300BW
Side View
Rear View
Shaft
Table
Center of
bracket
Gap
Rotor
Bracket
Stator
Groove joint pliers
Coil
Shaft
Axis
Stator
Rotor
These are the positions
that should be pinched
with pliers
COOLING FAN MOTOR REMOVAL
REMOVAL
1. Disconnect the power supply cord and 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 magnetron from the waveguide flange,
referring to "MAGNETRON REMOVAL".
6. Release the snap of the main wire harness from the fan duct.
7. Remove one (1) screw holding the fan duct assembly to
oven cavity.
8. Release the main wire harness from the hole of the fan duct.
9. Release the fan duct from the waveguide flange.
10.Release the fan duct assembly from the oven cavity.
11.Remove the fan blade from the fan motor shaft according
to the following procedure.
12.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.
13.Remove the fan blade from the shaft of the fan motor by
pulling and rotating the fan blade with your hand.
14. 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.
15.Remove the two (2) screws holding the fan motor to the
fan duct.
16.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. 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.
CAUTION:
*
Do not hit the fan blade hard when installing
because 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.
6. Catch three holes of fan duct on three tabs of the
waveguide flange.
7. Install the fan duct assembly to the oven cavity with the
one (1) screw.
8. Insert the snap of the main wire harness to the hole of the
fan duct and insert the main wire harness into the hole of
the fan duct.
9. Install the magnetron and the chassis support to the
oven cavity, referring to "Re-install of MAGNETRON
REMOVAL".
10.Connect the wire leads to the fan motor, referring to the
pictorial diagram.
TURNTABLE MOTOR REMOVAL
1. Disconnect the power supply cord.
2. Remove turntable and turntable support from oven cavity.
3. Lay the oven on it's backside. Remove the turntable
motor cover by snipping off the material in four corners.
4. Where the corners have been snipped off bend corner
areas flat. No sharp edges must be evident after removal
of the turntable motor cover.
5. Disconnect wire leads from turntable motor.
(See "Positive lock connector removal")
6. Remove two (2) screws holding turntable motor to oven
cavity.
7. Now the turntable motor is free.
8. After replacement use the one (1) screw to fit the
turntable motor cover.
