30
R-55TS
4. Remove the two (2) screws holding the main wire harness
to the upper heater.
5. Remove the one (1) screw holding the heater fix angle
left to the oven cavity top plate.
6. Carefully remove the upper heater from the oven cavity
top plate so that the right of the upper heater catch any
metal object.
7. Now, the upper heater is free.
1. Disconnect the power supply cord and then remove the
outer case.
2. Open the oven door and block it open.
3. Discharge the high voltage capacitor.
4. Now, the rear cover should be removed.
5. Remove the turntable and the turntable support from the
oven cavity.
6. Remove the door assembly, referring to "Removal of
DOOR REPLACEMENT".
7. Remove the control panel assembly, referring to
"CONTROL PANEL ASSEMBLY REMOVAL".
8. Remove the two (2) screws holding the rear reflector to
the bottom plate assembly, and remove it.
9. Remove the two (2) screws holding the exhaust cover to
the bottom plate assembly, and remove it.
10.Remove the two (2) screws holding the chassis support
to the oven cavity front flange and the fan duct, and
remove the chassis support.
11.Disconnect the wire leads from the following parts;
Upper heater, Lower heater, Thermal cut out, Oven
thermostat, Fan motor, C/T fuse, Door sensing switch,
Monitor switch, Secondary interlock switch, Select relay,
Oven lamp, Magnetron
12.Release the snap band of the main wire harness from the
air duct.
13.Remove the power transformer, referring to "POWER
TRANSFORMER REMOVAL".
14.Remove the three (3) screws holding the bottom plate
assembly (rear side) to the oven cavity assembly.
15.Turn the oven over.
16.Remove the three (3) screws holding the door insertion
barrier to the oven cavity.
17.Remove the bottom plate assembly with the main wire
LOWER HEATER REMOVAL
harness from the oven cavity assembly.
18.Remove the three (3) screws holding the bottom reflector
to the oven cavity.
19.Straighten the two (2) tabs of the bottom reflector and
remove the bottom reflector from the oven cavity.
20.Lift up the stopper and remove the lower heater.
21.Now, lower heater is free.
NOTE 1. When the lower heater is reinstalled, insert
the ceramic portion of the lower heater into
the tab plate. Or cooking result will be bad.
2. When the lower heater is reinstalled, reinstall
the lower heater so that the terminal of the
lower heater faces toward the hole of the
bottom reflector.
Figure C-2. Lower heater
Stopper
Lower heater
Bottom
refrector
Tab plate
Ceramic
portion
Stopper
Hole
Terminal
Terminal
Bottom
refrector
Tab plate
Lower heater
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 eight (8)
portions.
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.
TURNTABLE MOTOR REMOVAL
5. Disconnect wire leads from turntable motor.
6. Straighten the two (2) tabs holding turntable motor to
turntable motor mounting angle.
7. Remove one (1) screw holding turntable motor to oven
cavity.
8. Now the turntable motor is free.
9. After replacement use the one (1) screw to fit the
turntable motor cover.
REMOVAL
1. Disconnect the power supply cord and then remove
outer case.
2. Open the door and block it open.
COOLING FAN MOTOR REMOVAL
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from the fan motor.
5. Remove the two (2) screws holding the fan motor to the
bottom plate assembly.
