Sharp R-310FK Service Manual Download Page 28

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R - 310 F K
R-310FW

DOOR REPLACEMENT

Figure C-3. Latch Switch Adjustments

If the door sensing switch, secondary interlock switch and
monitor switch 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 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 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 contacts of door sensing switch and secondary

interlock switch open within 1.5mm gap between right
side of cavity face plate and door when door is open.

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.)

REMOVAL
1. Disconnect the power supply cord.
2. 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-4 to free engaging parts.

4. Pry the choke cover by inserting a putty knife as shown

Figure C-4.

5. Release choke cover from door panel.
6. 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.

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.

Figure C-4. Door Disassembly

9. Remove the four (4) screws holding the door panel to the

door frame.

10.Release door panel from eight (8) tabs of door frame.
11.Now, door panel with sealer film is free.
12.Tear sealer film from door panel.
13.Now, door panel is free.
14.Slide latch head upward and remove it from door frame

with releasing latch spring from door frame and latch
head.

15.Now, latch head and latch spring are free.
16.Remove door screen from door frame.
17.Now, door screen is free.

REINSTALLATION
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 eight (8) tabs

of door frame to eight (8) holes of door panel.

4. Hold the door panel to the door frame with the four (4)

screws.

5. Put sealer film on door panel. Refer to “Sealer Film”

about how to handle new one.

6. Catch two (2) pins of door panel on two (2) hole of upper

and lower oven hinges.