R-22GT-F
R-22GV-F
34
REMOVAL
1. Disconnect the power supply cord and then remove
outer case, referring to "OUTER CASE, REAR CABINET
AND POWER SUPPLY CORD REMOVAL".
2. Open the oven door and block it open.
3. Discharge two high voltage capacitors.
4. Remove outer control panel referring to "CONTROL
PANEL ASSEMBLY AND CONTROL UNIT REMOVAL".
5. Disconnect all wire leads from the all switches.
6. Remove two (2) screws holding latch hook to oven
flange.
7. Remove latch hook assembly from oven flange.
8. Remove the switch(es) in accordance with following
procedure.
DOOR SENSING SWITCH
Push the two (2) tabs outward and pull switch forwards
to release switch.
MONITOR SWITCHES OR SECONDARY INTERLOCK
SWITCHES
Remove one (1) screw and nut holding two switches
together to latch hook.
8. Now, switch(es) is now free.
RE-INSTALL
1. Re-install the switch(es) in accordance with following
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCHES (1), (2) AND MONITOR
SWITCHES (1), (2) REPLACEMENT
procedure.
DOOR SENSING SWITCH
Mount the door sensing switch in the lower position of
latch hook.
MONITOR SWITCHES
1) Mount the two (2) switches side by side in the top position
of the latch hook.
2) Fasten both switches together to latch hook with one (1)
screw and nut.
SECONDARY INTERLOCK SWITCHES
1) Mount the two (2) switches side by side in the middle
position of the latch hook.
2) Fasten both switches together to latch hook with one (1)
screw and nut.
2. Re-install latch hook assembly and fasten it to oven
flange with two (2) screws.
3. Re-connect all wire leads to all switches, referring to
pictorial diagram. Be careful to ensure proper connection
of the wire leads.
4. Make sure that the monitor switches (1), (2) and all other
switches are operating properly. And check continuity of
the monitor circuit. Refer to chapter "Test Procedure"
and Adjustment procedure.
1. Disconnect the power supply cord and then remove
outer case, referring to "OUTER CASE, REAR CABINET
AND POWER SUPPLY CORD REMOVAL".
2. Open the oven door and block it open.
3. Discharge two high voltage capacitors.
If the door sensing switch, secondary interlock switches (1),
(2) and monitor switches (1), (2) do not operate properly due
to a misadjustment, the following adjustment should be
made.
4. Loosen the two (2) screws holding latch hook to the oven
cavity front flange.
5. With door closed, adjust latch hook by moving it back and
forth, and up and down. In and out play of the door
allowed by the upper and lower position of the latch hook
should be less than 0.5mm. The vertical position of the
latch hook should be adjusted so that the door sensing
switch and secondary interlock switches (1), (2) are
activated with the door closed. The horizontal position of
the latch hook should be adjusted so that the monitor
switches (1), (2) are activated with the door closed.
6. Secure the screws with washers firmly.
7. Check the operation of all switches. If all switches have
not activated with the door closed, loosen two (2) screws
and adjust the latch hook position.
DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCHES (1), (2) AND MONITOR
SWITCHES (1), (2) ADJUSTMENT
After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in
the latched position.
2. The door sensing switch and secondary interlock switches
(1), (2) interrupt the circuit before the door can be
opened.
3. Monitor switches (1), (2) contacts close when door is
opened.
4. Re-install outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Figure C-3. Latch Switch Adjustments
Latch head
Monitor switch (1)
Latch hook
Secondary interlock
switch (2)
Door sensing switch
Latch head
Joint lever
Door release
lever
Latch lever
Secondary interlock
switch (1)
Monitor switch (2)
Switch lever C
Switch lever A
Switch lever B
