Table of Contents
Advertisement
6. Remove the fan blade from the fan motor shaft according
to the following procedure.
7. 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.
8. Remove the fan blade from the shaft of the fan motor by
pulling the fan blade with your hand.
9. 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.
10.Now, the fan motor is free.
Coil
Groove joint pliers
Stator
Gap
Bracket
Rotor
Rear View
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH 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. Remove the magnetron with air duct and the reflector
from the waveguide flange, referring to the items 4 - 10
of "Removal of MAGNETRON REPLACEMENT".
5. Remove the control panel assembly from the oven
cavity front flange. Refer to the "CONTROL PANEL
ASSEMBLY REMOVAL".
6. Disconnect wire leads from the switches.
7. Slide the switch lever rightward and remove it from the
oven cavity front flange.
8. Remove two (2) screws holding latch hook to oven flange.
9. Remove latch hook assembly from oven flange.
10.Push outward on the two (2) retaining tabs holding
switch in place.
11.Switch is now free.
At this time switch lever will be free, do not lose it.
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT
1. Disconnect the power supply cord, and then remove
outer case.
2. Open the door and block it open.
INSTALLATION
1. Install the fan blade to the fan motor shaft according to
the following procedure.
2. Hold the center of the bracket which supports the shaft of
the fan motor on the flat table.
3. Apply the screw lock tight into the hole (for shaft) of the
fan blade.
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.
5. Install the fan motor to the oven cavity back plate with the
two (2) screws.
CAUTION:
* Do not hit the fan blade strongly when installed
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. Connect the wire leads to the fan motor, referring to the
pictorial diagram.
Shaft
These are the positions
Axis
that should be pinched
with pliers.
Stator
Rotor
Side View
Reinstallation
1. Reinstall each switch in its place. The secondary interlock/
monitor switches are in the lower position and the door
sensing switch is in the upper position.
2. Secure latch hook (with two (2) mounting screws) to oven
flange.
3. Reinstall the switch lever to the oven cavity front flange.
4. Reconnect wire leads to each switch.
Refer to pictorial diagram.
5. Reinstall the control panel assembly to the oven cavity
front with the one (1) screw.
6. Reinstall the magnetron with air duct and the reflector to
the waveguide flange, referring to "Reinstallation of
MAGNETRON REPLACEMENT".
7. Make sure that the monitor switch is operating properly
and check continuity of the monitor circuit. Refer to
chapter "Test Procedure" and Adjustment procedure.
3. Discharge high voltage capacitor.
If the door sensing switch, secondary interlock switch and
monitor switch do not operate properly due to a
31
Shaft
Table
Center of
bracket
R-55TS-F
Advertisement
Table of Contents
