R410LW
11 – 5
2. REINSTALLATION
1. Reinstall each switch in its place. The primary interlock/ monitor
switches are in the lower position and the door sensing switch is in
the upper position.
2. Reconnect wire leads to each switch. Refer to pictorial diagram.
3. Secure latch hook (with two (2) mounting screws) to oven flange.
4. Make sure that the monitor switch is operating properly and check
continuity of the monitor circuit. Refer to chapter “Test Procedure”
and Adjustment procedure.
[13] DOOR SENSING SWITCH/PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH
ADJUSTMENT
1. Adjustment
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
If the door sensing switch, primary interlock switch and monitor switch
do not operate properly due to a misadjustment, the following adjust-
ment 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 primary interlock 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.
6. Secure the screws with washers firmly.
7. Check the operation of all switches. If each switch has not activated
with the door closed, loosen screw and adjust the latch hook posi-
tion.
2. 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 door sensing switch and primary interlock 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-3. Latch Switch Adjustments
[14] DOOR REPLACEMENT
1. REMOVAL
1. Disconnect oven from power supply.
2. Push the open button and open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into the gap
between the door stopper and the choke cover to free engaging
parts as shown in Figure C-4.
4. Try the principles of the lever and lift up the door stopper.
5. Now, the door stopper is free from the door assembly.
6. Release two (2) pins of door panel from two (2) holes of upper and
lower oven hinges by lifting up.
7. Now, door panel is free from oven cavity.
8. Insert a putty knife (thickness of about 0.5mm) into the gap
between the choke cover and door frame as shown in Figure C-4 to
free engaging parts.
9. Pry the choke cover by inserting a putty knife as shown Figure C-4.
10.Release choke cover from door panel.
11.Now choke cover is free.
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-4. Door Disassembly
12.Slide latch head upward and remove it from door frame with releas-
ing latch spring from door frame and latch head.
13.Now, latch head and latch spring are free.
14.Remove the two (2) screws holding the door panel to the door
frame.
15.Release door panel from nine (9) tabs of door frame by sliding door
panel downward.
16.Now, door panel with sealer film is free.
17.Tear sealer film from door panel.
Door Sensing
Switch
Monitor Switch
Switch Lever
Primary Interlock
Switch
Latch Heads
Door
4
3
2
1
5
6
7
9
8
10
11
12
13
Choke Cover
Door Frame
Putty Knife
Door stopper
