R-330H
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oven cavity front flange.
2. 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 1st.
latch switch and 2nd. interlock relay control switch are
activated with the door closed. The horizontal position
of the latch hook should be adjusted so that the plunger
of the monitor switch is pressed with the door closed.
3. Secure the screws with washers firmly.
4. Check all switches operation. If each switch has not
activated with the door closed, loosen screw and adjust
the latch hook position.
After adjustment, check the following.
1. In and out play of 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 the
door toward the oven face. Both results (play in the
door) should be less than 0.5mm.
2. The 1st. latch switch and 2nd. interlock relay control
switch interrupt the circuit before the door can be
opened.
3. Monitor switch contacts close when door is opened.
4. Reinstall outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Figure C-4. Latch Switch Adjustments
Latch
Heads
Door
Switch Lever
Latch Hook
Monitor Switch
2nd. Interlock
Relay Control
Switch
1st Latch Switch
REMOVAL
1. Disconnect the power supply cord.
2. Open button and open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the
gap between the choke cover and door frame as shown
in Figure C-5 to free engaging parts.
4. Pry the choke cover by inserting a putty knife as shown
Figure C-5.
5. Release choke cover from door panel.
6. Now choke cover is free.
7. Release two (2) pins of door panel from two (2) holes
of upper and lower oven hinges by lifting up.
8. Now, door panel with door frame is free from oven
cavity.
NOTE: When carrying out any repair to the door, do
not bend or warp the slit choke (tabs on the
door panel assembly) to prevent microwave
leakage.
Figure C-5. Door Disassembly
9. Release door panel from ten (10) tabs of door frame.
10.Now, door panel with sealer film is free.
11.Tear sealer film from door panel.
12.Now, door panel is free.
13.Slide latch head upward and remove it from door frame
with releasing latch spring from door frame and latch
head.
DOOR REPLACEMENT
14.Now, latch head and latch spring are free.
15.Remove the door screen from the door frame.
16.Now, door screen is free.
Reinstall
1. Reinstall door screen to door frame.
2. Reinstall the latch spring to the latch head. Reinstall the
latch spring to the door frame. Reinstall latch head to
door frame.
3. Reinstall door panel to door frame by fitting ten (10)
tabs of door frame to ten (10) holes of door panel.
4. Put sealer film on door panel. Refer to “Sealer Film”
about how to handle new one.
5. Catch two (2) pins of door panel on two (2) hole of upper
and lower oven hinges.
6. Reinstall choke cover to door panel by pushing.
Note: After any service to the door;
(A) Make sure that 1st. latch switch, 2nd. interlock
relay control switch and monitor switch are
operating properly. (Refer to chapter “Test
Procedures”.).
(B) An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards.
After any service, make sure of the following :
1. Door latch heads smoothly catch latch hook through
latch holes and that latch head goes through center of
latch hole.
2. Deviation of door alignment from horizontal line of
cavity face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity
face plate.
4. Check for microwave leakage around door with an
approved microwave survey meter. (Refer to Microwave
Measurement Procedure.)
Note:
The door on a microwave oven is designed to act
as an electronic seal preventing the leakage of
microwave energy from oven cavity during cook
Choke Cover
Door Frame
Putty Knife
Summary of Contents for R-330H
Page 2: ...R 330H ...
