R-895M (serv.man8). Component replacement and adjustment procedure - Sharp Home Appliance Service Manual (repair manual). Page 5

R-895M - 28

Choke Cover

Putty Knife

Door Frame

Latch hook

Door

SW2: Stop switch

Latch
Heads

SW3: Monitor switch

SW1: Monitored

latch switch

Tab

If the monitored latch switch, stop switch and monitor
switch do not operate properly due to a mis-adjustment,
the following adjustment should be made.
1. CARRY OUT 3D CHECKS.
2. Loosen the two (2) screws holding the latch hook to

the oven cavity front flange.

3. With the door closed, adjust the latch hook by moving

it back and forward or up and down. In and out play of
the door allowed by the latch hook should be less than
0.5 mm. The horizontal position of the latch hook should
be placed where the monitor switch has activated with
the door closed. The vertical position of the latch hook
should be placed where the monitored latch switch and
stop switch have activated with the door closed.

4. Secure the screws with washers firmly.
5. Make sure that all switches operate. If the latch head

has not pushed the plungers of the monitor switch with
door closed, adjust the latch hook position.
At that time, the latch head should have pushed the
plungers of the monitored latch switch and stop switch.
If the latch head has not pushed the plungers of the
monitored latch switch and stop switch with door closed,
loose two (2) screws holding latch hook to oven cavity
front flange and adjust the latch hook position.

1. In and out play of door remains less than 0.5 mm when

latched position. First check the latch hook position,
pushing and pulling upper portion of the door toward
the oven face. Then check the lower latch hook posi-
tion, pushing and pulling lower portion of the door
toward the oven face. Both results (play of the door)

should be less than 0.5mm.

2. The contacts (COM-NO) of the stop switch and the

monitored latch switch open within 1.8mm gap be-
tween right side of cavity face plate and door when
door is opened.

3. When the door is closed, the contacts (COM-NO) of the

stop switch close.

4. When the door is closed the contacts (COM-NC) of the

monitor switch and monitored latch switch open. And
the contacts (COM-NO) of their switches close.

5. Re-install outer case and check for microwave leakage

around the door with an approved microwave survey
meter. (Refer to Microwave Measurement Procedure.)

1. Disconnect the oven from the power supply.
2. Pull 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-7 to free engaging parts.

4. Release choke cover  from door panel.
5. Now choke cover is free.
NOTE: When carrying out any repair to the door, do

6. Lift the door upwards.
7. Now, door sub assembly is free from oven cavity.
8. Remove the four (4) screws holding the door panel to

the door frame.

9. Now, door panel is free.
10.Slide latch head upward and remove it from door

frame with releasing latch spring from door frame and
latch head.

11.Now, latch head and latch spring are free.
12.Remove the glass stopper from the door frame.
13.Slide the front door glass leftwards and then slide

upwards to release the tabs holding it.

14.Now, the front door glass is free

RE-INSTALL
1. Re-install the front door glass to the door frame as

follows.
a) Insert the upper edge of the front door glass into the

four (4) tabs of the door frame.

b) Slide the front door glass downwards and insert the

lower edge of the front door glass into the four (4)
tabs of the door frame.

c) Slide the front door glass rightwards and insert the

right edge of the front door glass into the three (3)
tab of the door frame.

2. Re-install the glass stopper to the door frame.

3. Re-install the latch spring to the latch head. Re-install

the latch spring to the door frame. Re-install latch head