22
R-216(G)
R-216(IN)
R-216(W)
R - 2 1 6 ( Y )
Latch Heads
Latch Hook
Door
SW2:
Monitor
Switch
Monitored
Latch
Switch
SW3:
2nd. Interlock
Relay Control
Switch
SW1:
1. CARRY OUT 3D CHECKS.
If the monitored latch switch, 2nd. interlock relay control
switch and monitor switch do not operate properly due to
a misadjustment, the following adjustment should be
made.
2. Loosen the two (2) screws holding the latch hook to the
flange of the oven front face.
3. With the 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 horizontal
position of the latch hook should be adjusted so that the
monitor switch is activated with the door closed. The
vertical position of the latch hook should be adjusted so
that the 2nd. interlock relay control switch and the
monitored latch switch are activated with the door
closed.
4. Secure the screws firmly.
5. Check the operation of all switches. If each switch has
not activated with the door closed, loosen screw and
adjust the latch hook position.
After adjustment, make sure of the following.
1. In and out play of the door remains less than 0.5mm
when in the latched position. First check upper position
of latch hook, pushing and pulling upper portion of door
toward the oven face. Then check lower portion of the
latch hook, pushing and pulling lower portion of door
toward the oven face. Both results (play in the door)
should be less than 0.5mm.
MONITORED LATCH SWITCH, 2ND. INTERLOCK RELAY CONTROL SWITCH AND
MONITOR SWITCH ADJUSTMENT
2. The monitored latch switch and 2nd. interlock relay
control switch interrupt the circuit before the door can
be opened.
3. The monitor switch contacts close when the door is
opened.
4. The contacts of monitored latch switch and 2nd. inter-
lock relay control switch open within 1.6mm gap be-
tween right side of cavity face plate and door when door
is open.
5. Re-install outer case and check for microwave leakage
around the door with an approved microwave survey
meter. (Refer to Microwave Measurement Procedure.)
Figure C-6. Latch Switch Adjustments
Latch Hook
Pole
Pole
Bar
Outward
Outward
Tab
Tab
SW2:Monitor
Switch
Monitored
Latch
Switch
SW3:
2nd. Interlock
Relay Control
Switch
SW1:
1. CARRY OUT 3D CHECKS.
2. Disconnect wire leads from the switches and control
panel.
3. Remove the control panel assembly from the oven
cavity front flange. Refer to chapter "CONTROL PANEL
ASSEMBLY REMOVAL".
4. Remove two (2) screws holding latch hook to oven
flange.
5. Remove latch hook assembly from oven flange.
6. To remove the secondary interlock switch.
6-1. Pull out the monitored latch switch from the latch
hook, by pushing outward on the tab that is holding
the switch. But the switch will be caught by the bar of
the latch hook.
6-2. Then pull out the switch while pushing the plunger of
the switch again.
6-3. Now the monitored latch switch is free.
7. To remove the monitor switch or 2nd. interlock relay
control switch.
7-1. With pushing outward on the tab that is holding the
switch, turn the switch so that the pole is an axis.
7-2. Pull out the switch from the latch hook. Do not break
the pole or tab of the latch hook.
7-3. Now the switch is free.
Re-install
1. Re-install each switch in its place. The monitored latch
switch is in the lower position and the monitor switch is
MONITORED LATCH SWITCH, 2ND. INTERLOCK RELAY CONTROL SWITCH AND
MONITOR SWITCH REMOVAL
in the middle position. The 2nd. interlock relay control
switch is in the upper position.
2. Re-connect wire leads to each switch. Refer to chapter
"Pictorial Diagram".
3. Secure latch hook (with two (2) mounting screws) to
oven flange.
4. Re-install the control panel assembly to the oven cavity
front flange.
5. Re-connect wire leads to the control unit. Refer to
chapter "Pictorial Diagram".
6. Make sure that monitor switch is operating properly and
check continuity of the monitor circuit. Refer to chapter
"Test Procedure", and Adjustment Procedure below.
Figure C-5. Latch Switch Removal